Hello Doc,
First of all check you firewall rules and verify that a logging rule is
present.

UDP port 514 is, usually, used by syslogd. Is any other system on your
network configured to send data to this server?

Have you tried to sniff and see what's going on?

Bye,
William



On 12/16/2009 03:50 PM, PECKENPAUGH, DEREK R wrote:
> We're seeing a lot of bytes NOT written to syslog.  We see traffic on the 
> firewall, but /var/log/messages is pretty quiet.  A netstat shows a large 
> amount of bytes in a receive queue for port 514:
> 
> [root@<xxxxxxxxxxxx>]# netstat -anu
> 
> Active Internet connections (servers and established)
> 
> Proto Recv-Q Send-Q Local Address               Foreign Address             
> State
> 
> udp   106488      0 0.0.0.0:514                 0.0.0.0:*
> udp        0      0 0.0.0.0:55692               0.0.0.0:*
> udp        0      0 0.0.0.0:821                 0.0.0.0:*
> udp        0      0 0.0.0.0:824                 0.0.0.0:*
> udp        0      0 0.0.0.0:5353                0.0.0.0:*
> udp        0      0 0.0.0.0:111                 0.0.0.0:*
> udp        0      0 0.0.0.0:631                 0.0.0.0:*
> udp        0      0 127.0.0.1:123               0.0.0.0:*
> udp        0      0 0.0.0.0:123                 0.0.0.0:*
> udp        0      0 :::47893                    :::*
> udp        0      0 :::5353                     :::*
> udp        0      0                   :123     :::*
> udp        0      0 ::1:123                     :::*
> udp        0      0 :::123                      :::*
> 
> Is there a way to determine why these bytes are not writing to 
> /var/log/messages -- or to clear this queue to see if writes do begin to 
> occur - short of reinstalling Ossec??
> 
> Thanks,
> Doc
> 
> 
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