Re: putting all logs in a file

[Jeffrey Laramie <JALaramie@Loudoun-Fairfax.com>]

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>It should be use something like info and then put a line in syslog.conf
>for 
>
>kern.info /var/log/iptables
>

Ahhh, but this is the command he started with, and it logs to both files 
by default. I've wanted to do this for some time so I did a little 
hacking of syslog.conf file and here's what I've got so far:

1.   Log level "info" is used by the kernel pretty regularly, so I 
changed my iptables log levels to "debug". Since every kernel message 
with a log level of debug will show up in this file, I selected a log 
level that my system rarely uses. Your mileage may vary.

iptables . . .   -j LOG --log-level debug --log-prefix "your_prefix:"

2.   Add a statement in your syslog.conf file:

kern.=debug      -/var/log/iptables.log

This will send only kernel debug level messages to your file. If you 
don't use the "=" then all messages at debug level or higher 
(everything) will go to your file. The "-" before the log file name 
allows the system to delay logging to this file during times of heavy 
kernel load.

3.   Modify the syslog.conf line that points to your /var/log/messages 
file by adding "kern.!=debug" to exclude (only) debug messages. In my 
case the line now looks like this:

*.*;mail.none;news.none;kern.!=debug      -/var/log/messages

4.    Restart syslog (this may not be necessary but it's a quick way to 
see if thing are going where you expected) and reload your iptables rules.

>My apologies for the early morning stupidity.
>  
>

I've found another cup of coffee often relieves this condition  ;-)   
I'm not much of a script writer on a good day (after coffee) so I 
welcome any suggested corrections or improvements.

Jeff

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