[Snort-users] >2Gb capture files

Matthew Collins Matthew.Collins at ...1681...
Mon Jun 25 07:50:49 EDT 2001

What kernel version are you running? The 2Gb file size is a limitation of older kernels. I don't think (but I'm not certain) the 2.4 series has this problem.

>>> "Mayers, Philip J" <p.mayers at ...1913...> 25/06/01 10:59:46 >>>
We have a rather high-traffic site, and I just had an embarrasing experience
- the snort machine runs RedHat 7.0, and I was running it under screen, so
that if it dumped core, I'd see the error messages (It hasn't - nice and
stable). However, once the log file reached 2Gb, snort (or glibc) stopped
writing... Losing us 18 days of binary packet captures (doh!)

Anyway, I have two questions:

1) Does anyone have a good snort logrotate script?
2) If I upgrade the system to RedHat 7.1, will snort/libpcap suddenly be
"ok" with such large files?


| Phil Mayers, Network Support     |
| Centre for Computing Services    |
| Imperial College                 |

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