[Snort-users] Empty output (unified) files

Alojzy Kleks testing4tester at ...14432...
Tue Mar 27 08:56:38 EDT 2012


Nick,


I've changed the paths and created test rules for downloaded pcaps. It really worked. However, there're still some questions I have. I removed comments from sf_portscan preprocessor and slightly modified it (according to readme file) and it looks as following:
preprocessor sfportscan: proto  { all } scan_type { all } memcap { 10000000 } sense_level { low }
But still no alerts\logs etc.
Another thing is number of rules. I've tested securityonion image which shows over 13k rules in Snort. When I downloaded and deployed latest snapshot of rules from snort.org, I see only ~2,5k rules. Are thery any other official ones which I may be missing?
Thank you all for help and understanding.

And here goes Snort output from its start:

ak at ...15571...:~$ sudo /usr/local/snort/bin/snort -u snort -g snort -c /usr/local/snort/etc/snort.conf -i eth0
Running in IDS mode

--== Initializing Snort ==--
Initializing Output Plugins!
Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file "/usr/local/snort/etc/snort.conf"
PortVar 'HTTP_PORTS' defined :  [ 80:81 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702 4343 5250 7001 7145 7510 7777 7779 8000 8008 8014 8028 8080 8088 8118 8123 8180:8181 8243 8280 8800 8888 8899 9080 9090:9091 9443 9999 11371 55555 ]
PortVar 'SHELLCODE_PORTS' defined :  [ 0:79 81:65535 ]
PortVar 'ORACLE_PORTS' defined :  [ 1024:65535 ]
PortVar 'SSH_PORTS' defined :  [ 22 ]
PortVar 'FTP_PORTS' defined :  [ 21 2100 3535 ]
PortVar 'SIP_PORTS' defined :  [ 5060:5061 5600 ]
PortVar 'FILE_DATA_PORTS' defined :  [ 80:81 110 143 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702 4343 5250 7001 7145 7510 7777 7779 8000 8008 8014 8028 8080 8088 8118 8123 8180:8181 8243 8280 8800 8888 8899 9080 9090:9091 9443 9999 11371 55555 ]
PortVar 'GTP_PORTS' defined :  [ 2123 2152 3386 ]
Detection:
Search-Method = AC-Full-Q
Split Any/Any group = enabled
Search-Method-Optimizations = enabled
Maximum pattern length = 20
Tagged Packet Limit: 256
Loading dynamic engine /usr/local/snort/lib/snort_dynamicengine/libsf_engine.so... done
Loading all dynamic detection libs from /usr/local/snort/lib/snort_dynamicrules...
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/nntp.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/p2p.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/web-misc.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/web-client.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/bad-traffic.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/web-iis.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/snmp.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/misc.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/chat.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/multimedia.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/smtp.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/dos.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/web-activex.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/imap.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/netbios.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/exploit.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/specific-threats.so... done
Loading dynamic detection library /usr/local/snort/lib/snort_dynamicrules/icmp.so... done
Finished Loading all dynamic detection libs from /usr/local/snort/lib/snort_dynamicrules
Loading all dynamic preprocessor libs from /usr/local/snort/lib/snort_dynamicpreprocessor/...
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_modbus_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_dce2_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_sip_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_sdf_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_ssh_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_ssl_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_gtp_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_pop_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_dnp3_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_smtp_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_imap_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_dns_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_ftptelnet_preproc.so... done
Loading dynamic preprocessor library /usr/local/snort/lib/snort_dynamicpreprocessor//libsf_reputation_preproc.so... done
Finished Loading all dynamic preprocessor libs from /usr/local/snort/lib/snort_dynamicpreprocessor/
Log directory = /var/log/snort
WARNING: ip4 normalizations disabled because not inline.
WARNING: tcp normalizations disabled because not inline.
WARNING: icmp4 normalizations disabled because not inline.
WARNING: ip6 normalizations disabled because not inline.
WARNING: icmp6 normalizations disabled because not inline.
Frag3 global config:
Max frags: 65536
Fragment memory cap: 4194304 bytes
Frag3 engine config:
Bound Address: default
Target-based policy: WINDOWS
Fragment timeout: 180 seconds
Fragment min_ttl:   1
Fragment Anomalies: Alert
Overlap Limit:     10
Min fragment Length:     100
Stream5 global config:
Track TCP sessions: ACTIVE
Max TCP sessions: 262144
Memcap (for reassembly packet storage): 8388608
Track UDP sessions: ACTIVE
Max UDP sessions: 131072
Track ICMP sessions: INACTIVE
Track IP sessions: INACTIVE
Log info if session memory consumption exceeds 1048576
Send up to 2 active responses
Wait at least 5 seconds between responses
Protocol Aware Flushing: ACTIVE
Maximum Flush Point: 16000
Stream5 TCP Policy config:
Bound Address: default
Reassembly Policy: WINDOWS
Timeout: 180 seconds
Limit on TCP Overlaps: 10
Maximum number of bytes to queue per session: 1048576
Maximum number of segs to queue per session: 2621
Options:
Require 3-Way Handshake: YES
3-Way Handshake Timeout: 180
Detect Anomalies: YES
Reassembly Ports:
21 client (Footprint) 
22 client (Footprint) 
23 client (Footprint) 
25 client (Footprint) 
42 client (Footprint) 
53 client (Footprint) 
79 client (Footprint) 
80 client (Footprint) server (Footprint)
81 client (Footprint) server (Footprint)
109 client (Footprint) 
110 client (Footprint) 
111 client (Footprint) 
113 client (Footprint) 
119 client (Footprint) 
135 client (Footprint) 
136 client (Footprint) 
137 client (Footprint) 
139 client (Footprint) 
143 client (Footprint) 
161 client (Footprint) 
additional ports configured but not printed.
Stream5 UDP Policy config:
Timeout: 180 seconds
HttpInspect Config:
GLOBAL CONFIG
Max Pipeline Requests:    0
Inspection Type:          STATELESS
Detect Proxy Usage:       NO
IIS Unicode Map Filename: /usr/local/snort/etc/unicode.map
IIS Unicode Map Codepage: 1252
Memcap used for logging URI and Hostname: 150994944
Max Gzip Memory: 838860
Max Gzip Sessions: 6
Gzip Compress Depth: 65535
Gzip Decompress Depth: 65535
DEFAULT SERVER CONFIG:
Server profile: All
Ports (PAF): 80 81 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702 4343 5250 7001 7145 7510 7777 7779 8000 8008 8014 8028 8080 8088 8118 8123 8180 8181 8243 8280 8800 8888 8899 9080 9090 9091 9443 9999 11371 55555 
Server Flow Depth: 0
Client Flow Depth: 0
Max Chunk Length: 500000
Small Chunk Length Evasion: chunk size <= 10, threshold >= 5 times
Max Header Field Length: 750
Max Number Header Fields: 100
Max Number of WhiteSpaces allowed with header folding: 0
Inspect Pipeline Requests: YES
URI Discovery Strict Mode: NO
Allow Proxy Usage: NO
Disable Alerting: NO
Oversize Dir Length: 500
Only inspect URI: NO
Normalize HTTP Headers: NO
Inspect HTTP Cookies: YES
Inspect HTTP Responses: YES
Extract Gzip from responses: YES
Unlimited decompression of gzip data from responses: YES
Normalize Javascripts in HTTP Responses: YES
Max Number of WhiteSpaces allowed with Javascript Obfuscation in HTTP responses: 200
Normalize HTTP Cookies: NO
Enable XFF and True Client IP: NO
Log HTTP URI data: NO
Log HTTP Hostname data: NO
Extended ASCII code support in URI: NO
Ascii: YES alert: NO
Double Decoding: YES alert: NO
%U Encoding: YES alert: YES
Bare Byte: YES alert: NO
UTF 8: YES alert: NO
IIS Unicode: YES alert: NO
Multiple Slash: YES alert: NO
IIS Backslash: YES alert: NO
Directory Traversal: YES alert: NO
Web Root Traversal: YES alert: NO
Apache WhiteSpace: YES alert: NO
IIS Delimiter: YES alert: NO
IIS Unicode Map: GLOBAL IIS UNICODE MAP CONFIG
Non-RFC Compliant Characters: 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 
Whitespace Characters: 0x09 0x0b 0x0c 0x0d 
rpc_decode arguments:
Ports to decode RPC on: 111 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779 
alert_fragments: INACTIVE
alert_large_fragments: INACTIVE
alert_incomplete: INACTIVE
alert_multiple_requests: INACTIVE
Portscan Detection Config:
Detect Protocols:  TCP UDP ICMP IP
Detect Scan Type:  portscan portsweep decoy_portscan distributed_portscan
Sensitivity Level: High/Experimental
Memcap (in bytes): 10000000
Number of Nodes:   17391
FTPTelnet Config:
GLOBAL CONFIG
Inspection Type: stateful
Check for Encrypted Traffic: YES alert: NO
Continue to check encrypted data: NO
TELNET CONFIG:
Ports: 23 
Are You There Threshold: 20
Normalize: YES
Detect Anomalies: YES
FTP CONFIG:
FTP Server: default
Ports (PAF): 21 2100 3535 
Check for Telnet Cmds: YES alert: YES
Ignore Telnet Cmd Operations: YES alert: YES
Identify open data channels: NO
FTP Client: default
Check for Bounce Attacks: YES alert: YES
Check for Telnet Cmds: YES alert: YES
Ignore Telnet Cmd Operations: YES alert: YES
Max Response Length: 256
SMTP Config:
Ports: 25 465 587 691 
Inspection Type: Stateful
Normalize: ATRN AUTH BDAT DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND STARTTLS SOML TICK TIME TURN TURNME VERB VRFY X-EXPS XADR XAUTH XCIR XEXCH50 XGEN XLICENSE X-LINK2STATE XQUE XSTA XTRN XUSR CHUNKING X-ADAT X-DRCP X-ERCP X-EXCH50 
Ignore Data: No
Ignore TLS Data: No
Ignore SMTP Alerts: No
Max Command Line Length: 512
Max Specific Command Line Length: 
ATRN:255 AUTH:246 BDAT:255 DATA:246 DEBUG:255 
EHLO:500 EMAL:255 ESAM:255 ESND:255 ESOM:255 
ETRN:246 EVFY:255 EXPN:255 HELO:500 HELP:500 
IDENT:255 MAIL:260 NOOP:255 ONEX:246 QUEU:246 
QUIT:246 RCPT:300 RSET:246 SAML:246 SEND:246 
SIZE:255 STARTTLS:246 SOML:246 TICK:246 TIME:246 
TURN:246 TURNME:246 VERB:246 VRFY:255 X-EXPS:246 
XADR:246 XAUTH:246 XCIR:246 XEXCH50:246 XGEN:246 
XLICENSE:246 X-LINK2STATE:246 XQUE:246 XSTA:246 XTRN:246 
XUSR:246 
Max Header Line Length: 1000
Max Response Line Length: 512
X-Link2State Alert: Yes
Drop on X-Link2State Alert: No
Alert on commands: None
Alert on unknown commands: No
SMTP Memcap: 838860
MIME Max Mem: 838860
Base64 Decoding: Enabled
Base64 Decoding Depth: Unlimited
Quoted-Printable Decoding: Enabled
Quoted-Printable Decoding Depth: Unlimited
Unix-to-Unix Decoding: Enabled
Unix-to-Unix Decoding Depth: Unlimited
7bit/8bit/binary Extraction: Enabled
7bit/8bit/binary Extraction Depth: Unlimited
Log Attachment filename: Enabled
Log MAIL FROM Address: Enabled
Log RCPT TO Addresses: Enabled
Log Email Headers: Enabled
Email Hdrs Log Depth: 1464
SSH config: 
Autodetection: ENABLED
Challenge-Response Overflow Alert: ENABLED
SSH1 CRC32 Alert: ENABLED
Server Version String Overflow Alert: ENABLED
Protocol Mismatch Alert: ENABLED
Bad Message Direction Alert: DISABLED
Bad Payload Size Alert: DISABLED
Unrecognized Version Alert: DISABLED
Max Encrypted Packets: 20 
Max Server Version String Length: 100 
MaxClientBytes: 19600 (Default) 
Ports:
22
DCE/RPC 2 Preprocessor Configuration
Global Configuration
DCE/RPC Defragmentation: Enabled
Memcap: 102400 KB
Events: co 
Server Default Configuration
Policy: WinXP
Detect ports (PAF)
SMB: 139 445 
TCP: 135 
UDP: 135 
RPC over HTTP server: 593 
RPC over HTTP proxy: None
Autodetect ports (PAF)
SMB: None
TCP: 1025-65535 
UDP: 1025-65535 
RPC over HTTP server: 1025-65535 
RPC over HTTP proxy: None
Invalid SMB shares: C$ D$ ADMIN$ 
Maximum SMB command chaining: 3 commands
DNS config: 
DNS Client rdata txt Overflow Alert: ACTIVE
Obsolete DNS RR Types Alert: INACTIVE
Experimental DNS RR Types Alert: INACTIVE
Ports: 53
SSLPP config:
Encrypted packets: not inspected
Ports:
443      465      563      636      989
992      993      994      995     7801
7802     7900     7901     7902     7903
7904     7905     7906     7907     7908
7909     7910     7911     7912     7913
7914     7915     7916     7917     7918
7919     7920
Server side data is trusted
Sensitive Data preprocessor config: 
Global Alert Threshold: 25
Masked Output: DISABLED
SIP config: 
Max number of sessions: 40000 
Status: ENABLED
Ignore media channel: DISABLED
Max URI length: 512 
Max Call ID length: 80 
Max Request name length: 20 (Default) 
Max From length: 256 (Default) 
Max To length: 256 (Default) 
Max Via length: 1024 (Default) 
Max Contact length: 512 
Max Content length: 2048 
Ports:
5060	5061	5600
Methods:
invite cancel ack bye register options refer subscribe update join info message notify benotify do qauth sprack publish service unsubscribe prack
IMAP Config:
Ports: 143 
IMAP Memcap: 838860
Base64 Decoding: Enabled
Base64 Decoding Depth: Unlimited
Quoted-Printable Decoding: Enabled
Quoted-Printable Decoding Depth: Unlimited
Unix-to-Unix Decoding: Enabled
Unix-to-Unix Decoding Depth: Unlimited
7bit/8bit/binary Extraction: Enabled
7bit/8bit/binary Extraction Depth: Unlimited
POP Config:
Ports: 110 
POP Memcap: 838860
Base64 Decoding: Enabled
Base64 Decoding Depth: Unlimited
Quoted-Printable Decoding: Enabled
Quoted-Printable Decoding Depth: Unlimited
Unix-to-Unix Decoding: Enabled
Unix-to-Unix Decoding Depth: Unlimited
7bit/8bit/binary Extraction: Enabled
7bit/8bit/binary Extraction Depth: Unlimited
Modbus config: 
Ports:
502
DNP3 config: 
Memcap: 262144
Check Link-Layer CRCs: ENABLED
Ports:
20000
Reputation config: 
WARNING: Can't find any whitelist/blacklist entries. Reputation Preprocessor disabled.

+++++++++++++++++++++++++++++++++++++++++++++++++++
Initializing rule chains...
2471 Snort rules read
2471 detection rules
0 decoder rules
0 preprocessor rules
2471 Option Chains linked into 170 Chain Headers
0 Dynamic rules
+++++++++++++++++++++++++++++++++++++++++++++++++++

+-------------------[Rule Port Counts]---------------------------------------
|             tcp     udp    icmp      ip
|     src    1406       4       0       0
|     dst     879      42       0       0
|     any     118      46      28      27
|      nc      42      12       1       0
|     s+d       0       1       0       0
+----------------------------------------------------------------------------

+-----------------------[detection-filter-config]------------------------------
| memory-cap : 1048576 bytes
+-----------------------[detection-filter-rules]-------------------------------
-------------------------------------------------------------------------------

+-----------------------[rate-filter-config]-----------------------------------
| memory-cap : 1048576 bytes
+-----------------------[rate-filter-rules]------------------------------------
| none
-------------------------------------------------------------------------------

+-----------------------[event-filter-config]----------------------------------
| memory-cap : 1048576 bytes
+-----------------------[event-filter-global]----------------------------------
+-----------------------[event-filter-local]-----------------------------------
| none
+-----------------------[suppression]------------------------------------------
| none
-------------------------------------------------------------------------------
Rule application order: activation->dynamic->pass->drop->sdrop->reject->alert->log
Verifying Preprocessor Configurations!
ICMP tracking disabled, no ICMP sessions allocated
IP tracking disabled, no IP sessions allocated
WARNING: flowbits key 'file.xlw' is set but not ever checked.
WARNING: flowbits key 'blackhole.pdf' is checked but not ever set.
WARNING: flowbits key 'ABSystemSpy_Inforetrieve1' is set but not ever checked.
89 out of 1024 flowbits in use.

[ Port Based Pattern Matching Memory ]
+- [ Aho-Corasick Summary ] -------------------------------------
| Storage Format    : Full-Q 
| Finite Automaton  : DFA
| Alphabet Size     : 256 Chars
| Sizeof State      : Variable (1,2,4 bytes)
| Instances         : 135
|     1 byte states : 125
|     2 byte states : 10
|     4 byte states : 0
| Characters        : 50371
| States            : 40267
| Transitions       : 3811187
| State Density     : 37.0%
| Patterns          : 2572
| Match States      : 2352
| Memory (MB)       : 20.53
|   Patterns        : 0.29
|   Match Lists     : 0.59
|   DFA
|     1 byte states : 0.73
|     2 byte states : 18.69
|     4 byte states : 0.00
+----------------------------------------------------------------
[ Number of patterns truncated to 20 bytes: 512 ]
pcap DAQ configured to passive.
The DAQ version does not support reload.
Acquiring network traffic from "eth0".
Reload thread starting...
Reload thread started, thread 0x7f2621129700 (2806)
Decoding Ethernet
Set gid to 1002
Set uid to 1002

--== Initialization Complete ==--

,,_     -*> Snort! <*-
o"  )~   Version 2.9.2.1 IPv6 GRE (Build 107) 
''''    By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team
Copyright (C) 1998-2012 Sourcefire, Inc., et al.
Using libpcap version 1.0.0
Using PCRE version: 7.8 2008-09-05
Using ZLIB version: 1.2.3.3

Rules Engine: SF_SNORT_DETECTION_ENGINE  Version 1.15  <Build 18>
Rules Object: icmp  Version 1.0  <Build 1>
Rules Object: specific-threats  Version 1.0  <Build 1>
Rules Object: exploit  Version 1.0  <Build 1>
Rules Object: netbios  Version 1.0  <Build 1>
Rules Object: imap  Version 1.0  <Build 1>
Rules Object: web-activex  Version 1.0  <Build 1>
Rules Object: dos  Version 1.0  <Build 1>
Rules Object: smtp  Version 1.0  <Build 1>
Rules Object: multimedia  Version 1.0  <Build 1>
Rules Object: chat  Version 1.0  <Build 1>
Rules Object: misc  Version 1.0  <Build 1>
Rules Object: snmp  Version 1.0  <Build 1>
Rules Object: web-iis  Version 1.0  <Build 1>
Rules Object: bad-traffic  Version 1.0  <Build 1>
Rules Object: web-client  Version 1.0  <Build 1>
Rules Object: web-misc  Version 1.0  <Build 1>
Rules Object: p2p  Version 1.0  <Build 1>
Rules Object: nntp  Version 1.0  <Build 1>
Preprocessor Object: SF_REPUTATION (IPV6)  Version 1.1  <Build 1>
Preprocessor Object: SF_FTPTELNET (IPV6)  Version 1.2  <Build 13>
Preprocessor Object: SF_DNS (IPV6)  Version 1.1  <Build 4>
Preprocessor Object: SF_IMAP (IPV6)  Version 1.0  <Build 1>
Preprocessor Object: SF_SMTP (IPV6)  Version 1.1  <Build 9>
Preprocessor Object: SF_DNP3 (IPV6)  Version 1.1  <Build 1>
Preprocessor Object: SF_POP (IPV6)  Version 1.0  <Build 1>
Preprocessor Object: SF_GTP (IPV6)  Version 1.1  <Build 1>
Preprocessor Object: SF_SSLPP (IPV6)  Version 1.1  <Build 4>
Preprocessor Object: SF_SSH (IPV6)  Version 1.1  <Build 3>
Preprocessor Object: SF_SDF (IPV6)  Version 1.1  <Build 1>
Preprocessor Object: SF_SIP (IPV6)  Version 1.1  <Build 1>
Preprocessor Object: SF_DCERPC2 (IPV6)  Version 1.0  <Build 3>
Preprocessor Object: SF_MODBUS (IPV6)  Version 1.1  <Build 1>
Commencing packet processing (pid=2806)





________________________________
 From: Nick Moore <nmoore at ...1935...>
To: Alojzy Kleks <testing4tester at ...14432...> 
Cc: Joel Esler <jesler at ...1935...>; "snort-users at lists.sourceforge.net" <snort-users at lists.sourceforge.net> 
Sent: Tuesday, March 27, 2012 1:13 PM
Subject: Re: [Snort-users] Empty output (unified) files
 

Alojzy, 

Where are your rules files? Also, can you include the output from when you start Snort? I wonder if it is not finding your rule files, as your RULE_PATH variables are all at the defaults with a relative directory and you are starting snort from /usr/local/snort/bin. Also, the sf_portscan preprocessor is commented out, so it won't trigger alerts when you run portscans. 

Some things I would recommend trying:
	* In snort.conf, set your RULE_PATH, SO_RULE_PATH and PREPROC_RULE_PATH to the directory where you put your rule files. When I set up Snort on my system, I put them in /etc/snort and code this in my snort.conf explicitly.
	* If you still don't get any alerts after this, open one of the pcap files you downloaded from openpacket.org using wireshark. Write a simple rule alerting on the content of the one or more packets from the pcap and put it in your local.rules file. Make sure that local.rules is  properly included in your RULE_PATH.
	* If the above works, comment out the custom rule you've written and try snort on your network. You should be good to go. 
Happy Snorting!

Nick

On Tue, Mar 27, 2012 at 4:40 AM, Alojzy Kleks <testing4tester at ...14432...> wrote:

I just used snapshot from snort.org website. For tests I used different scans with nmap (previously switched on portscan alerting in snort.conf) as well as some pcaps from openpackets (https://www.openpacket.org/capture/grab/52 and https://www.openpacket.org/capture/grab/71). Nothing returned alerts, logs etc. Just some SSL alerts, but files are still empty.
>
>
>
>
>________________________________
> From: Joel Esler <jesler at ...1935...>
>To: Alojzy Kleks <testing4tester at ...14432...> 
>Cc: "snort-users at lists.sourceforge.net" <snort-users at lists.sourceforge.net> 
>Sent: Monday, March 26, 2012 6:19 PM
>Subject: Re: [Snort-users]  Empty output (unified) files
> 
>
>Which rules are you attempting to alert on?
>
>
>Can you provide a pcap?
>
>
>
>
>On Mar 26, 2012, at 11:16 AM, Alojzy Kleks wrote:
>
>No, I don't. When digging deeper and deeper into it, I'm starting to believe that it's problem with rules. 
>>
>>
>>
>>Od: Joel Esler <jesler at ...1935...>
>>Data: 26 marca 2012 15:50
>>Temat: Re: [Snort-users] Empty output (unified) files
>>Do: Alojzy Kleks <testing4tester at ...14432...>
>>DW: "snort-users at lists.sourceforge.net" <snort-users at ...3893...t>
>>
>>
>>
>>When you log using another method, do you get output?  Say -A cmg on the command line?
>>
>>
>>
>>
>>On Mar 26, 2012, at 9:24 AM, Alojzy Kleks wrote:
>>
>>Seriously nobody has any ideas?
>>>
>>>
>>>
>>>
>>>________________________________
>>> From: Alojzy Kleks <testing4tester at ...14432...>
>>>To: Joel Esler <jesler at ...1935...> 
>>>Cc: "snort-users at lists.sourceforge.net" <snort-users at ...973...et> 
>>>Sent: Thursday, March 22, 2012 2:49 PM
>>>Subject: Re: [Snort-users] Empty output (unified) files
>>> 
>>>
>>>Normal command: sudo /usr/local/snort/bin/snort -u snort -g snort -c /usr/local/snort/etc/snort.conf -i eth0
>>>Command for console output: sudo /usr/local/snort/bin/snort -A console -u snort -g snort -c /usr/local/snort/etc/snort.conf -i eth0 -v
>>>
>>>
>>>snort.conf:
>>>
>>>
>>>
>>>#--------------------------------------------------
>>>#   VRT Rule Packages Snort.conf
>>>#
>>>#   For more information visit us at:
>>># http://www.snort.org Snort Website
>>># http://vrt-sourcefire.blogspot.com/ Sourcefire VRT Blog
>>>#
>>>#     Mailing list Contact: snort-sigs at lists.sourceforge.net
>>>#     False Positive reports: fp at ...1935...
>>>#     Snort bugs: bugs at ...950...
>>>#
>>>#    
 Compatible with Snort Versions:
>>>#     VERSIONS : 2.9.2.1
>>>#
>>>#     Snort build options:
>>>#     OPTIONS : --enable-ipv6 --enable-gre --enable-mpls --enable-targetbased --enable-decoder-preprocessor-rules --enable-ppm --enable-perfprofiling --enable-zlib --enable-active-response --enable-normalizer --enable-reload --enable-react --enable-flexresp3
>>>#
>>>#     Additional information:
>>>#     This configuration file enables active response, to run snort in
>>>#     test mode -T you are required to supply an interface -i <interface>
>>>#     or test mode will fail to fully validate the configuration and
>>>#     exit with a FATAL error
>>>#--------------------------------------------------
>>>
>>>###################################################
>>># This file contains a sample snort configuration. 
>>># You should take the following steps to create your own custom configuration:
>>>#
>>>#  1) Set the network variables.
>>>#  2) Configure
 the decoder
>>>#  3) Configure the base detection engine
>>>#  4) Configure dynamic loaded libraries
>>>#  5) Configure preprocessors
>>>#  6) Configure output plugins
>>>#  7) Customize your rule set
>>>#  8) Customize preprocessor and decoder rule set
>>>#  9) Customize shared object rule set
>>>###################################################
>>>
>>>###################################################
>>># Step #1: Set the network variables.  For more information, see README.variables
>>>###################################################
>>>
>>># Setup the network addresses you are protecting
>>>ipvar HOME_NET any
>>>
>>># Set up the external network addresses. Leave as "any" in most situations
>>>ipvar EXTERNAL_NET any
>>>
>>># List of DNS servers on your network 
>>>ipvar DNS_SERVERS $HOME_NET
>>>
>>># List of SMTP servers on your network
>>>ipvar SMTP_SERVERS $HOME_NET
>>>
>>># List of web servers on your network
>>>ipvar HTTP_SERVERS
 $HOME_NET
>>>
>>># List of sql servers on your network 
>>>ipvar SQL_SERVERS $HOME_NET
>>>
>>># List of telnet servers on your network
>>>ipvar TELNET_SERVERS $HOME_NET
>>>
>>># List of ssh servers on your network
>>>ipvar SSH_SERVERS $HOME_NET
>>>
>>># List of ftp servers on your network
>>>ipvar FTP_SERVERS $HOME_NET
>>>
>>># List of sip servers on your network
>>>ipvar SIP_SERVERS $HOME_NET
>>>
>>># List of ports you run web servers on
>>>portvar HTTP_PORTS [80,81,311,591,593,901,1220,1414,1830,2301,2381,2809,3128,3702,4343,5250,7001,7145,7510,7777,7779,8000,8008,8014,8028,8080,8088,8118,8123,8180,8181,8243,8280,8800,8888,8899,9080,9090,9091,9443,9999,11371,55555]
>>>
>>># List of ports you want to look for SHELLCODE on.
>>>portvar SHELLCODE_PORTS !80
>>>
>>># List of ports you might see oracle attacks on
>>>portvar ORACLE_PORTS 1024:
>>>
>>># List of ports you want to look for SSH connections on:
>>>portvar SSH_PORTS 22
>>>
>>># List of ports you
 run ftp servers on
>>>portvar FTP_PORTS [21,2100,3535]
>>>
>>># List of ports you run SIP servers on
>>>portvar SIP_PORTS [5060,5061,5600]
>>>
>>># List of file data ports for file inspection
>>>portvar FILE_DATA_PORTS [$HTTP_PORTS,110,143]
>>>
>>># List of GTP ports for GTP preprocessor
>>>portvar GTP_PORTS [2123,2152,3386]
>>>
>>># other variables, these should not be modified
>>>ipvar AIM_SERVERS [64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24]
>>>
>>># Path to your rules files (this can be a relative path)
>>># Note for Windows users:  You are advised to make this an absolute path,
>>># such as:  c:\snort\rules
>>>var RULE_PATH ../rules
>>>var SO_RULE_PATH ../so_rules
>>>var PREPROC_RULE_PATH ../preproc_rules
>>>
>>># If you are using reputation preprocessor set these
>>># Currently there is a bug with relative
 paths, they are relative to where snort is
>>># not relative to snort.conf like the above variables
>>># This is completely inconsistent with how other vars work, BUG 89986
>>># Set the absolute path appropriately
>>>var WHITE_LIST_PATH /usr/local/snort/rules
>>>var BLACK_LIST_PATH /usr/local/snort/rules
>>>
>>>###################################################
>>># Step #2: Configure the decoder.  For more information, see README.decode
>>>###################################################
>>>
>>># Stop generic decode events:
>>>config disable_decode_alerts
>>>
>>># Stop Alerts on experimental TCP options
>>>config disable_tcpopt_experimental_alerts
>>>
>>># Stop Alerts on obsolete TCP options
>>>config disable_tcpopt_obsolete_alerts
>>>
>>># Stop Alerts on T/TCP alerts
>>>config disable_tcpopt_ttcp_alerts
>>>
>>># Stop Alerts on all other TCPOption type events:
>>>config disable_tcpopt_alerts
>>>
>>># Stop Alerts on invalid ip options
>>>config
 disable_ipopt_alerts
>>>
>>># Alert if value in length field (IP, TCP, UDP) is greater th elength of the packet
>>># config enable_decode_oversized_alerts
>>>
>>># Same as above, but drop packet if in Inline mode (requires enable_decode_oversized_alerts)
>>># config enable_decode_oversized_drops
>>>
>>># Configure IP / TCP checksum mode
>>>config checksum_mode: all
>>>
>>># Configure maximum number of flowbit references.  For more information, see README.flowbits
>>># config flowbits_size: 64
>>>
>>># Configure ports to ignore 
>>># config ignore_ports: tcp 21 6667:6671 1356
>>># config ignore_ports: udp 1:17 53
>>>
>>># Configure active response for non inline operation. For more information, see REAMDE.active
>>># config response: eth0 attempts 2
>>>
>>># Configure DAQ related options for inline operation. For more information, see README.daq
>>>#
>>># config daq: <type>
>>># config daq_dir: <dir>
>>># config daq_mode: <mode>
>>>#
 config daq_var: <var>
>>>#
>>># <type> ::= pcap | afpacket | dump | nfq | ipq | ipfw
>>># <mode> ::= read-file | passive | inline
>>># <var> ::= arbitrary <name>=<value passed to DAQ
>>># <dir> ::= path as to where to look for DAQ module so's
>>>
>>># Configure specific UID and GID to run snort as after dropping privs. For more information see snort -h command line options
>>>#
>>># config set_gid:
>>># config set_uid:
>>>
>>># Configure default snaplen. Snort defaults to MTU of in use interface. For more information see README
>>>#
>>># config snaplen:
>>>#
>>>
>>># Configure default bpf_file to use for filtering what traffic reaches snort. For more information see snort -h command line options (-F)
>>>#
>>># config bpf_file:
>>>#
>>>
>>># Configure default log directory for snort to log to.  For more information see snort -h command line options (-l)
>>>#
>>># config
 logdir:
>>>
>>>###################################################
>>># Step #3: Configure the base detection engine.  For more information, see  README.decode
>>>###################################################
>>>
>>># Configure PCRE match limitations
>>>config pcre_match_limit: 3500
>>>config pcre_match_limit_recursion: 1500
>>>
>>># Configure the detection engine  See the Snort Manual, Configuring Snort - Includes - Config
>>>config detection: search-method ac-split search-optimize max-pattern-len 20
>>>
>>># Configure the event queue.  For more information, see README.event_queue
>>>config event_queue: max_queue 8 log 3 order_events content_length
>>>
>>>###################################################
>>>## Configure GTP if it is to be used.
>>>## For more information, see README.GTP
>>>####################################################
>>>
>>># config enable_gtp
>>>
>>>###################################################
>>>#
 Per packet and rule latency enforcement
>>># For more information see README.ppm
>>>###################################################
>>>
>>># Per Packet latency configuration
>>>#config ppm: max-pkt-time 250, \
>>>#   fastpath-expensive-packets, \
>>>#   pkt-log
>>>
>>># Per Rule latency configuration
>>>#config ppm: max-rule-time 200, \
>>>#   threshold 3, \
>>>#   suspend-expensive-rules, \
>>>#   suspend-timeout 20, \
>>>#   rule-log alert
>>>
>>>###################################################
>>># Configure Perf Profiling for debugging
>>># For more information see README.PerfProfiling
>>>###################################################
>>>
>>>#config profile_rules: print all, sort avg_ticks
>>>#config profile_preprocs: print all, sort avg_ticks
>>>
>>>###################################################
>>># Configure protocol aware flushing
>>># For more information see
 README.stream5
>>>###################################################
>>>config paf_max: 16000
>>>
>>>###################################################
>>># Step #4: Configure dynamic loaded libraries. 
>>># For more information, see Snort Manual, Configuring Snort - Dynamic Modules
>>>###################################################
>>>
>>># path to dynamic preprocessor libraries
>>>dynamicpreprocessor directory /usr/local/snort/lib/snort_dynamicpreprocessor/
>>>
>>># path to base preprocessor engine
>>>dynamicengine /usr/local/snort/lib/snort_dynamicengine/libsf_engine.so
>>>
>>># path to dynamic rules libraries
>>>dynamicdetection directory /usr/local/snort/lib/snort_dynamicrules
>>>
>>>###################################################
>>># Step #5: Configure preprocessors
>>># For more information, see the Snort Manual, Configuring Snort - Preprocessors
>>>###################################################
>>>
>>># GTP Control Channle
 Preprocessor. For more information, see README.GTP
>>># preprocessor gtp: ports { 2123 3386 2152 }
>>>
>>># Inline packet normalization. For more information, see README.normalize
>>># Does nothing in IDS mode
>>>preprocessor normalize_ip4
>>>preprocessor normalize_tcp: ips ecn stream
>>>preprocessor normalize_icmp4
>>>preprocessor normalize_ip6
>>>preprocessor normalize_icmp6
>>>
>>># Target-based IP defragmentation.  For more inforation, see README.frag3
>>>preprocessor frag3_global: max_frags 65536
>>>preprocessor frag3_engine: policy windows detect_anomalies overlap_limit 10 min_fragment_length 100 timeout 180
>>>
>>># Target-Based stateful inspection/stream reassembly.  For more inforation, see README.stream5
>>>preprocessor stream5_global: track_tcp yes, \
>>>track_udp yes, \
>>>track_icmp no, \ 
>>>max_tcp 262144, \
>>>max_udp 131072, \
>>>max_active_responses 2, \
>>>min_response_seconds 5
>>>preprocessor stream5_tcp: policy
 windows, detect_anomalies, require_3whs 180, \
>>>overlap_limit 10, small_segments 3 bytes 150, timeout 180, \
>>>ports client 21 22 23 25 42 53 79 109 110 111 113 119 135 136 137 139 143 \
>>>161 445 513 514 587 593 691 1433 1521 2100 3306 6070 6665 6666 6667 6668 6669 \
>>>7000 8181 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \
>>>ports both 80 81 311 443 465 563 591 593 636 901 989 992 993 994 995 1220 1414 1830 2301 2381 2809 3128 3702 4343 5250 7907 7001 7145 7510 7802 7777 7779 \
>>>7801 7900 7901 7902 7903 7904 7905 7906 7908 7909 7910 7911 7912 7913 7914 7915 7916 \
>>>7917 7918 7919 7920 8000 8008 8014 8028 8080 8088 8118 8123 8180 8243 8280 8800 8888 8899 9080 9090 9091 9443 9999 11371 55555
>>>preprocessor stream5_udp: timeout 180
>>>
>>># performance statistics.  For more information, see the Snort Manual, Configuring Snort - Preprocessors - Performance Monitor
>>># preprocessor
 perfmonitor: time 300 file /var/snort/snort.stats pktcnt 10000
>>>
>>># HTTP normalization and anomaly detection.  For more information, see README.http_inspect
>>>preprocessor http_inspect: global iis_unicode_map unicode.map 1252 compress_depth 65535 decompress_depth 65535
>>>preprocessor http_inspect_server: server default \
>>>http_methods { GET POST PUT SEARCH MKCOL COPY MOVE LOCK UNLOCK NOTIFY POLL BCOPY BDELETE BMOVE LINK UNLINK OPTIONS HEAD DELETE TRACE TRACK CONNECT SOURCE SUBSCRIBE UNSUBSCRIBE PROPFIND PROPPATCH BPROPFIND BPROPPATCH RPC_CONNECT PROXY_SUCCESS BITS_POST CCM_POST SMS_POST RPC_IN_DATA RPC_OUT_DATA RPC_ECHO_DATA } \
>>>chunk_length 500000 \
>>>server_flow_depth 0 \
>>>client_flow_depth 0 \
>>>post_depth 65495 \
>>>oversize_dir_length 500 \
>>>max_header_length 750 \
>>>max_headers 100 \
>>>max_spaces 0 \
>>>small_chunk_length { 10 5 } \
>>>ports { 80 81 311 591 593 901 1220 1414 1830 2301
 2381 2809 3128 3702 4343 5250 7001 7145 7510 7777 7779 8000 8008 8014 8028 8080 8088 8118 8123 8180 8181 8243 8280 8800 8888 8899 9080 9090 9091 9443 9999 11371 55555 } \
>>>non_rfc_char { 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 } \
>>>enable_cookie \
>>>extended_response_inspection \
>>>inspect_gzip \
>>>normalize_utf \
>>>unlimited_decompress \
>>>normalize_javascript \
>>>apache_whitespace no \
>>>ascii no \
>>>bare_byte no \
>>>directory no \
>>>double_decode no \
>>>iis_backslash no \
>>>iis_delimiter no \
>>>iis_unicode no \
>>>multi_slash no \
>>>utf_8 no \
>>>u_encode yes \
>>>webroot no
>>>
>>># ONC-RPC normalization and anomaly detection.  For more information, see the Snort Manual, Configuring Snort - Preprocessors - RPC Decode
>>>preprocessor rpc_decode: 111 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779 no_alert_multiple_requests
 no_alert_large_fragments no_alert_incomplete
>>>
>>># Back Orifice detection.
>>>preprocessor bo
>>>
>>># FTP / Telnet normalization and anomaly detection.  For more information, see README.ftptelnet
>>>preprocessor ftp_telnet: global inspection_type stateful encrypted_traffic no
>>>preprocessor ftp_telnet_protocol: telnet \
>>>ayt_attack_thresh 20 \
>>>normalize ports { 23 } \
>>>detect_anomalies
>>>preprocessor ftp_telnet_protocol: ftp server default \
>>>def_max_param_len 100 \
>>>ports { 21 2100 3535 } \
>>>telnet_cmds yes \
>>>ignore_telnet_erase_cmds yes \
>>>ftp_cmds { ABOR ACCT ADAT ALLO APPE AUTH CCC CDUP } \
>>>ftp_cmds { CEL CLNT CMD CONF CWD DELE ENC EPRT } \
>>>ftp_cmds { EPSV ESTA ESTP FEAT HELP LANG LIST LPRT } \
>>>ftp_cmds { LPSV MACB MAIL MDTM MIC MKD MLSD MLST } \
>>>ftp_cmds { MODE NLST NOOP OPTS PASS PASV PBSZ PORT } \
>>>ftp_cmds { PROT PWD QUIT REIN REST RETR RMD RNFR } \
>>>ftp_cmds { RNTO SDUP SITE SIZE SMNT STAT STOR STOU } \
>>>ftp_cmds { STRU SYST TEST TYPE USER XCUP XCRC XCWD } \
>>>ftp_cmds { XMAS XMD5 XMKD XPWD XRCP XRMD XRSQ XSEM } \
>>>ftp_cmds { XSEN XSHA1 XSHA256 } \
>>>alt_max_param_len 0 { ABOR CCC CDUP ESTA FEAT LPSV NOOP PASV PWD QUIT REIN STOU SYST XCUP XPWD } \
>>>alt_max_param_len 200 { ALLO APPE CMD HELP NLST RETR RNFR STOR STOU XMKD } \
>>>alt_max_param_len 256 { CWD RNTO } \
>>>alt_max_param_len 400 { PORT } \
>>>alt_max_param_len 512 { SIZE } \
>>>chk_str_fmt { ACCT ADAT ALLO APPE AUTH CEL CLNT CMD } \
>>>chk_str_fmt { CONF CWD DELE ENC EPRT EPSV ESTP HELP } \
>>>chk_str_fmt { LANG LIST LPRT MACB MAIL MDTM MIC MKD } \
>>>chk_str_fmt { MLSD MLST MODE NLST OPTS PASS PBSZ PORT } \
>>>chk_str_fmt { PROT REST RETR RMD RNFR RNTO SDUP SITE } \
>>>chk_str_fmt { SIZE SMNT STAT STOR STRU TEST TYPE USER } \
>>>chk_str_fmt { XCRC XCWD XMAS XMD5 XMKD XRCP
 XRMD XRSQ } \ 
>>>chk_str_fmt { XSEM XSEN XSHA1 XSHA256 } \
>>>cmd_validity ALLO < int [ char R int ] > \ 
>>>cmd_validity EPSV < [ { char 12 | char A char L char L } ] > \
>>>cmd_validity MACB < string > \
>>>cmd_validity MDTM < [ date nnnnnnnnnnnnnn[.n[n[n]]] ] string > \
>>>cmd_validity MODE < char ASBCZ > \
>>>cmd_validity PORT < host_port > \
>>>cmd_validity PROT < char CSEP > \
>>>cmd_validity STRU < char FRPO [ string ] > \ 
>>>cmd_validity TYPE < { char AE [ char NTC ] | char I | char L [ number ] } >
>>>preprocessor ftp_telnet_protocol: ftp client default \
>>>max_resp_len 256 \
>>>bounce yes \
>>>ignore_telnet_erase_cmds yes \
>>>telnet_cmds yes
>>>
>>>
>>># SMTP normalization and anomaly detection.  For more information, see README.SMTP
>>>preprocessor smtp: ports { 25 465 587 691 } \
>>>inspection_type stateful \
>>>b64_decode_depth 0 \
>>>qp_decode_depth 0 \
>>>bitenc_decode_depth 0 \
>>>uu_decode_depth 0 \
>>>log_mailfrom \
>>>log_rcptto \
>>>log_filename \
>>>log_email_hdrs \
>>>normalize cmds \
>>>normalize_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY } \
>>>normalize_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND SOML } \
>>>normalize_cmds { STARTTLS TICK TIME TURN TURNME VERB VRFY X-ADAT X-DRCP X-ERCP X-EXCH50 } \
>>>normalize_cmds { X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \
>>>max_command_line_len 512 \
>>>max_header_line_len 1000 \
>>>max_response_line_len 512 \
>>>alt_max_command_line_len 260 { MAIL } \
>>>alt_max_command_line_len 300 { RCPT } \
>>>alt_max_command_line_len 500 { HELP HELO ETRN EHLO } \
>>>alt_max_command_line_len 255 { EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM
 EVFY IDENT NOOP RSET } \
>>>alt_max_command_line_len 246 { SEND SAML SOML AUTH TURN ETRN DATA RSET QUIT ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \
>>>valid_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY } \ 
>>>valid_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND SOML } \
>>>valid_cmds { STARTTLS TICK TIME TURN TURNME VERB VRFY X-ADAT X-DRCP X-ERCP X-EXCH50 } \
>>>valid_cmds { X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \
>>>xlink2state { enabled }
>>>
>>># Portscan detection.  For more information, see README.sfportscan
>>># preprocessor sfportscan: proto  { all } memcap { 10000000 } sense_level { low }
>>>
>>># ARP spoof detection.  For more information, see the Snort Manual - Configuring Snort - Preprocessors - ARP Spoof Preprocessor
>>># preprocessor
 arpspoof
>>># preprocessor arpspoof_detect_host: 192.168.40.1 f0:0f:00:f0:0f:00
>>>
>>># SSH anomaly detection.  For more information, see README.ssh
>>>preprocessor ssh: server_ports { 22 } \
>>>autodetect \
>>>max_client_bytes 19600 \
>>>max_encrypted_packets 20 \
>>>max_server_version_len 100 \
>>>enable_respoverflow enable_ssh1crc32 \
>>>enable_srvoverflow enable_protomismatch
>>>
>>># SMB / DCE-RPC normalization and anomaly detection.  For more information, see README.dcerpc2
>>>preprocessor dcerpc2: memcap 102400, events [co ]
>>>preprocessor dcerpc2_server: default, policy WinXP, \
>>>detect [smb [139,445], tcp 135, udp 135, rpc-over-http-server 593], \
>>>autodetect [tcp 1025:, udp 1025:, rpc-over-http-server 1025:], \
>>>smb_max_chain 3, smb_invalid_shares ["C$", "D$", "ADMIN$"]
>>>
>>># DNS anomaly detection.  For more
 information, see README.dns
>>>preprocessor dns: ports { 53 } enable_rdata_overflow
>>>
>>># SSL anomaly detection and traffic bypass.  For more information, see README.ssl
>>>preprocessor ssl: ports { 443 465 563 636 989 992 993 994 995 7801 7802 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 7920 }, trustservers, noinspect_encrypted
>>>
>>># SDF sensitive data preprocessor.  For more information see README.sensitive_data
>>>preprocessor sensitive_data: alert_threshold 25
>>>
>>># SIP Session Initiation Protocol preprocessor.  For more information see README.sip
>>>preprocessor sip: max_sessions 40000, \
>>>ports { 5060 5061 5600 }, \
>>>methods { invite \
>>>cancel \
>>>ack \
>>>bye \
>>>register \
>>>options \
>>>refer \
>>>subscribe \
>>>update \
>>>join \
>>>info
 \
>>>message \
>>>notify \
>>>benotify \
>>>do \
>>>qauth \
>>>sprack \
>>>publish \
>>>service \
>>>unsubscribe \
>>>prack }, \
>>>max_uri_len 512, \
>>>max_call_id_len 80, \
>>>max_requestName_len 20, \
>>>max_from_len 256, \
>>>max_to_len 256, \
>>>max_via_len 1024, \
>>>max_contact_len 512, \
>>>max_content_len 2048 
>>>
>>># IMAP preprocessor.  For more information see README.imap
>>>preprocessor imap: \
>>>ports { 143 } \
>>>b64_decode_depth 0 \
>>>qp_decode_depth 0 \
>>>bitenc_decode_depth 0 \
>>>uu_decode_depth 0
>>>
>>># POP preprocessor. For more information see README.pop
>>>preprocessor pop: \
>>>ports { 110 } \
>>>b64_decode_depth 0 \
>>>qp_decode_depth 0 \
>>>bitenc_decode_depth 0 \
>>>uu_decode_depth 0
>>>
>>># Modbus preprocessor. For more information see
 README.modbus
>>>preprocessor modbus: ports { 502 }
>>>
>>># DNP3 preprocessor. For more information see README.dnp3
>>>preprocessor dnp3: ports { 20000 } \
>>>memcap 262144 \
>>>check_crc
>>>
>>># Reputation preprocessor. For more information see README.reputation
>>>preprocessor reputation: \
>>>memcap 500, \
>>>priority whitelist, \
>>>nested_ip inner, \
>>>whitelist $WHITE_LIST_PATH/white_list.rules, \
>>>blacklist $BLACK_LIST_PATH/black_list.rules 
>>>
>>>###################################################
>>># Step #6: Configure output plugins
>>># For more information, see Snort Manual, Configuring Snort - Output Modules
>>>###################################################
>>>
>>># unified2 
>>># Recommended for most installs
>>># output unified2: filename merged.log, limit 128, nostamp, mpls_event_types, vlan_event_types
>>>output unified2: filename snort.u2, limit 128
>>>
>>># Additional configuration for specific types
 of installs
>>># output alert_unified2: filename snort.alert, limit 128, nostamp
>>># output log_unified2: filename snort.log, limit 128, nostamp 
>>>
>>># syslog
>>># output alert_syslog: LOG_AUTH LOG_ALERT
>>>
>>># pcap
>>># output log_tcpdump: tcpdump.log
>>>
>>># database
>>># output database: alert, <db_type>, user=<username> password=<password> test dbname=<name> host=<hostname>
>>># output database: log, <db_type>, user=<username> password=<password> test dbname=<name> host=<hostname>
>>>
>>># prelude
>>># output alert_prelude
>>>
>>># metadata reference data.  do not modify these lines
>>>include classification.config
>>>include reference.config
>>>
>>>
>>>###################################################
>>># Step #7: Customize your rule set
>>># For more information, see Snort Manual, Writing Snort Rules
>>>#
>>># NOTE: All categories are enabled in this conf
 file
>>>###################################################
>>>
>>># site specific rules
>>>include $RULE_PATH/local.rules
>>>
>>>include $RULE_PATH/attack-responses.rules
>>>include $RULE_PATH/backdoor.rules
>>>include $RULE_PATH/bad-traffic.rules
>>>include $RULE_PATH/blacklist.rules
>>>include $RULE_PATH/botnet-cnc.rules
>>>include $RULE_PATH/chat.rules
>>>include $RULE_PATH/content-replace.rules
>>>include $RULE_PATH/ddos.rules
>>>include $RULE_PATH/dns.rules
>>>include $RULE_PATH/dos.rules
>>>include $RULE_PATH/exploit.rules
>>>include $RULE_PATH/file-identify.rules
>>>include $RULE_PATH/finger.rules
>>>include $RULE_PATH/ftp.rules
>>>include $RULE_PATH/icmp.rules
>>>include $RULE_PATH/icmp-info.rules
>>>include $RULE_PATH/imap.rules
>>>include $RULE_PATH/info.rules
>>>include $RULE_PATH/misc.rules
>>>include $RULE_PATH/multimedia.rules
>>>include $RULE_PATH/mysql.rules
>>>include $RULE_PATH/netbios.rules
>>>include $RULE_PATH/nntp.rules
>>>include
 $RULE_PATH/oracle.rules
>>>include $RULE_PATH/other-ids.rules
>>>include $RULE_PATH/p2p.rules
>>>include $RULE_PATH/phishing-spam.rules
>>>include $RULE_PATH/policy.rules
>>>include $RULE_PATH/pop2.rules
>>>include $RULE_PATH/pop3.rules
>>>include $RULE_PATH/rpc.rules
>>>include $RULE_PATH/rservices.rules
>>>include $RULE_PATH/scada.rules
>>>include $RULE_PATH/scan.rules
>>>include $RULE_PATH/shellcode.rules
>>>include $RULE_PATH/smtp.rules
>>>include $RULE_PATH/snmp.rules
>>>include $RULE_PATH/specific-threats.rules
>>>include $RULE_PATH/spyware-put.rules
>>>include $RULE_PATH/sql.rules
>>>include $RULE_PATH/telnet.rules
>>>include $RULE_PATH/tftp.rules
>>>include $RULE_PATH/virus.rules
>>>include $RULE_PATH/voip.rules
>>>include $RULE_PATH/web-activex.rules
>>>include $RULE_PATH/web-attacks.rules
>>>include $RULE_PATH/web-cgi.rules
>>>include $RULE_PATH/web-client.rules
>>>include $RULE_PATH/web-coldfusion.rules
>>>include
 $RULE_PATH/web-frontpage.rules
>>>include $RULE_PATH/web-iis.rules
>>>include $RULE_PATH/web-misc.rules
>>>include $RULE_PATH/web-php.rules
>>>include $RULE_PATH/x11.rules
>>>
>>>###################################################
>>># Step #8: Customize your preprocessor and decoder alerts
>>># For more information, see README.decoder_preproc_rules
>>>###################################################
>>>
>>># decoder and preprocessor event rules
>>># include $PREPROC_RULE_PATH/preprocessor.rules
>>># include $PREPROC_RULE_PATH/decoder.rules
>>># include $PREPROC_RULE_PATH/sensitive-data.rules
>>>
>>>###################################################
>>># Step #9: Customize your Shared Object Snort Rules
>>># For more information, see http://vrt-sourcefire.blogspot.com/2009/01/using-vrt-certified-shared-object-rules.html
>>>###################################################
>>>
>>># dynamic library rules
>>># include
 $SO_RULE_PATH/bad-traffic.rules
>>># include $SO_RULE_PATH/chat.rules
>>># include $SO_RULE_PATH/dos.rules
>>># include $SO_RULE_PATH/exploit.rules
>>># include $SO_RULE_PATH/icmp.rules
>>># include $SO_RULE_PATH/imap.rules
>>># include $SO_RULE_PATH/misc.rules
>>># include $SO_RULE_PATH/multimedia.rules
>>># include $SO_RULE_PATH/netbios.rules
>>># include $SO_RULE_PATH/nntp.rules
>>># include $SO_RULE_PATH/p2p.rules
>>># include $SO_RULE_PATH/smtp.rules
>>># include $SO_RULE_PATH/snmp.rules
>>># include $SO_RULE_PATH/specific-threats.rules
>>># include $SO_RULE_PATH/web-activex.rules
>>># include $SO_RULE_PATH/web-client.rules
>>># include $SO_RULE_PATH/web-iis.rules
>>># include $SO_RULE_PATH/web-misc.rules
>>>
>>># Event thresholding or suppression commands. See threshold.conf 
>>>include threshold.conf
>>>
>>>
>>>
>>>
>>>
>>>Thank you very much for your help.
>>>
>>>
>>>
>>>
>>>
>>>________________________________
>>> From: Joel Esler <jesler at ...1935...>
>>>To: Alojzy Kleks <testing4tester at ...14432...> 
>>>Cc: "snort-users at lists.sourceforge.net" <snort-users at ...973...et> 
>>>Sent: Thursday, March 22, 2012 2:19 PM
>>>Subject: Re: [Snort-users] Empty output (unified) files
>>> 
>>>
>>>Please post your Snort command line and contents of the snort.conf. 
>>>
>>>-- 
>>>Joel Esler
>>>
>>>On Mar 22, 2012, at 8:49 AM, Alojzy Kleks <testing4tester at ...14432...> wrote:
>>>
>>>
>>>Hi all,
>>>>
>>>>I've installed snort on Ubuntu using the official documentation on Snort website (except installing reporting tool as I'm using snorby). When installation is completed, I wanted to test it. To my big suprise, snort is creating unified output files, but they're empty. I was testing using nmap with intense scanning (including both TCP and UDP) as well as LOIC, but all the files have size of zero. When I redirect output to -A console, I can clearly see the
 packets, also when I cancel snort process, in the summary I can clearly find statistics, but still nothing can be found in the files.
>>>>Any tips and tricks will be highly appreciated.
>>>------------------------------------------------------------------------------
>>>>This SF email is sponsosred by:
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>>>_______________________________________________
>>>>Snort-users mailing list
>>>>Snort-users at lists.sourceforge.net
>>>>Go to this URL to change user options or unsubscribe:
>>>>https://lists.sourceforge.net/lists/listinfo/snort-users
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>>>>http://www.geocrawler.com/redir-sf.php3?list=snort-users
>>>>
>>>>Please visit http://blog.snort.org to stay current on all the latest Snort news!
>>>
>>>
>>>------------------------------------------------------------------------------
>>>This SF email is sponsosred by:
>>>Try Windows Azure free for 90 days Click Here 
>>>http://p.sf.net/sfu/sfd2d-msazure
>>>_______________________________________________
>>>Snort-users mailing list
>>>Snort-users at lists.sourceforge.net
>>>Go to this URL to change user options or unsubscribe:
>>>https://lists.sourceforge.net/lists/listinfo/snort-users
>>>Snort-users list archive:
>>>http://www.geocrawler.com/redir-sf.php3?list=snort-users
>>>
>>>Please visit http://blog.snort.org to stay current on all the latest Snort news!
>>>
>>>
>>
>>------------------------------------------------------------------------------
>>This SF email is sponsosred by:
>>Try Windows Azure free for 90 days Click Here
>>http://p.sf.net/sfu/sfd2d-msazure
>>_______________________________________________
>>Snort-users mailing list
>>Snort-users at lists.sourceforge.net
>>Go to this URL to change user options or unsubscribe:
>>https://lists.sourceforge.net/lists/listinfo/snort-users
>>Snort-users list archive:
>>http://www.geocrawler.com/redir-sf.php3?list=snort-users
>>
>>Please visit http://blog.snort.org to stay current on all the latest Snort news!
>>
>>
>>
>>
>>
>>
>>------------------------------------------------------------------------------
>>This SF email is sponsosred by:
>>Try Windows Azure free for 90 days Click Here 
>>http://p.sf.net/sfu/sfd2d-msazure_______________________________________________
>>Snort-users mailing list
>>Snort-users at lists.sourceforge.net
>>Go to this URL to change user options or unsubscribe:
>>https://lists.sourceforge.net/lists/listinfo/snort-users
>>Snort-users list archive:
>>http://www.geocrawler.com/redir-sf.php3?list=snort-users
>>
>>Please visit http://blog.snort.org to stay current on all the latest Snort news!
>
>
>
>------------------------------------------------------------------------------
>This SF email is sponsosred by:
>Try Windows Azure free for 90 days Click Here
>http://p.sf.net/sfu/sfd2d-msazure
>_______________________________________________
>Snort-users mailing list
>Snort-users at lists.sourceforge.net
>Go to this URL to change user options or unsubscribe:
>https://lists.sourceforge.net/lists/listinfo/snort-users
>Snort-users list archive:
>http://www.geocrawler.com/redir-sf.php3?list=snort-users
>
>Please visit http://blog.snort.org to stay current on all the latest Snort news!
>


-- 
Nick Moore, SFCE, CISSP, CISA
Sr. Systems Engineer
Voice 708-336-9041
Email nick.moore at ...1935...
IM    nickgmoore (Yahoo)
       nickgmoore38 (AIM)

    ,,_
   o"  )~   Sourcefire - The Creators of Snort
    ''''

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