Hi all,
Thanks for your help. I have few more questions about barnyard and Snort.
0) Snort box will face the Internet. 400 Megabit connection. How many
alerts can I expect? I want to estimate the disk requirements etc.
1) Is there any obvious mistake with this command line:
[root@localhost snort]# barnyard -c /etc/barnyard.conf -s /etc/snort/sid-
msg.map -g /etc/snort/gen-msg.map -p /etc/snort/classification.config -d
/var/log/snort -f snort.log
2) Why do I get this error? How can I shut this off? Is this warning a
problem?
WARNING: Unable to extract timestamp file extension from 'snort.log'
3) What is a good size to set for files below?
# Two arguments are supported.
# filename - base filename to write to (current time_t is appended)
# limit - maximum size of spool file in MB (default: 128)
#
output alert_unified: filename snort.alert, limit 128
output log_unified: filename snort.log, limit 128
What happens when the file size (128) is reached? Does Snort die or restart?
4) I briefly looked at implementation of barnyard. I may be wrong here. How
does barnyard poll the directory? Is it busy-looping?
5) What is the difference between alert and log? I am thinking alert is the
human readable version. What is the difference between snort.log and
snort.log.timestamp?
5) Should I pass "alert" to barnyard?
6) output alert_unified: filename snort.alert, limit 128
output log_unified: filename snort.log, limit 128
I see the file snort.log. Why is snort.alert missing?
[root@localhost snort]# ls -l
total 464
-rw------- 1 root snort 14214 Jan 30 14:33 alert
-rw-r--r-- 1 root root 380336 Jan 30 14:33 snort.log
-rw------- 1 root root 1186 Jan 30 13:57 snort.log.1201719126
-rw------- 1 root root 7410 Jan 30 14:01 snort.log.1201719513
-rw------- 1 root root 40834 Jan 30 14:33 snort.log.1201719677
[root@localhost snort]#
--Sudhakar
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