up vote 12 down vote favorite
6

Is there a way I can easily redirect the entries for UFW to their own log file at /var/log/ufw instead of filling up /var/log/syslog as it's becoming tricky to find solutions to problems with all this UFW stuff flying past me?

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up vote 13 down vote

In Ubuntu 15.10 and Debian Jessie there is a file /etc/rsyslog.d/20-ufw.conf. It contains at the bottom # & ~. Remove the # in front of it to uncomment it and refresh rsyslog with the command /etc/init.d/rsyslog restart so that it takes in account the configuration change.

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1  
works for 14.04 too, and is simpler, just used sudo service rsyslog restart after changing it, thx! – Aquarius Power Sep 27 '16 at 3:01
    
This is what worked for me too (14.04). Simple is good. – smspaulb Nov 29 '16 at 1:58
up vote 11 down vote

I'm running Ubuntu 14.04 as well. In my /etc/rsyslog.d/ there's a file 20-ufw.conf which has the following line:

:msg,contains,"[UFW " /var/log/ufw.log

What I've done is delete that file, and at the top of 50-default.conf I added the following:

:msg,contains,"[UFW " /var/log/ufw.log
& stop

Restart rsyslog with sudo service rsyslog restart and your UFW logs should be put into their own file and not into any other.

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7  
why not just edit 20-ufw.conf and add the stop command there? In fact, it already has a template that can be uncommented, and it seems to work fine in my quick test. – HRJ Dec 4 '14 at 13:49
    
@HRJ Personal preference? The 20-ufw.conf file only has a few lines of text, most of which are comments. I felt it wasn't necessary for its own config file. Your suggestion accomplishes the same thing really - it's the :msg,contains,"[UFW " /var/log/ufw.log that needs to be modified/stopped. – Ackis Dec 5 '14 at 15:21
up vote 6 down vote

ufw uses rsyslog for logging to /var/log/syslog or /var/log/messages:

To change the log file, edit /etc/rsyslog.d/50-default.conf and to the top add:

:msg, contains, "UFW" -/var/log/ufw.log
& ~

This will log all data that contains "UFW" to /var/log/ufw.log will prevent further processing of such data.

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While ufw.log does now contain entries with your commands, syslog still receives messages. – markrich Apr 21 '14 at 14:55
    
Yes but syslog does report problems with your commands. – markrich Apr 21 '14 at 15:05
    
error during parsing file /etc/rsyslog.d/50-default.conf, on or before line 1: invalid character '~' - is there an invalid escape sequence somewhere? [try rsyslog.com/e/2207 ] Apr 21 15:58:41 markys-home-pc rsyslogd-2307: warning: ~ action is deprecated, consider using the 'stop' statement instead [try rsyslog.com/e/2307 ] – markrich Apr 21 '14 at 15:07
    
I did copy and paste. Same error. – markrich Apr 21 '14 at 16:39
    
The log has stopped accepting UFW commands on mass, however one or two are still sneaking through. It's better now however the depreciation error still exists. – markrich Apr 21 '14 at 16:43
up vote 2 down vote

On 16.04 just comment out the last line in this file so that it reads

$ tail -1 /etc/rsyslog.d/20-ufw.conf 
& stop

and restart rsyslog

$ sudo systemctl restart rsyslog

from now on, ufw logs will be in /var/log/ufw.log and not anymore in /var/log/syslog

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