[syslog-ng] R: syslog-ng Digest, Vol 80, Issue 18

13 Dec 2011

      As you can see the device gives a valid syslog header.
Destination of 
Firewall in fw.log:
# tailf fw.log
Dec 13 13:58:47 192.168.1.254/192.
168.1.254 Fw-Vigor2955: 149:13:59.970 lan->wan @S:R=13:1 p 
192.168.1.8,19679 -> 82.200.234.214,33244    PR UDP len 20 131

Destination of Access Point .241 in ap241.log:
# tailf ap241.log
Dec 13 
13:58:47 192.168.1.254/192.168.1.254 Fw-Vigor2955: 149:13:59.770 lan-
...
wan @S:R=13:1 p 192.168.1.8,19679 -> 94.244.30.85,63708    PR UDP len 
20 131
It writes the same thing!!

My configuration is the following:

source udp {
  udp();
  };
destination d_fw {
  file("/**/**/fw.log" 
create_dirs(yes) fsync(yes));
  };
filter f_fw {
  netmask
("192.168.1.254/32"); ## try for only host
  };
log {
  source(udp);

destination(d_fw);
  filter(f_fw);
  };

Therefore, how can I do??

Thanks
Tokie

------------------------------

Date: Mon, 12 Dec 2011 19:
10:30 -0500
From: Jim <jrhendri@maine.rr.com>
Subject: Re: [syslog-ng] 
Log only one host
To: Syslog-ng users' and developers' mailing list

<syslog-ng@lists.balabit.hu>
Message-ID: <1323735030.16055.1.
camel@ubuntu>
Content-Type: text/plain; charset="UTF-8"

Couple things 
to note:
- not all syslogs give a valid syslog header (e.g. <date> 
<time> <host>
<program>:<message>)
- name resolution costs cycles (may 
not be an issue)
- know the difference between $HOST (parsed from the 
syslog header) and
$HOST_FROM (the origin of the packet)

Enjoy!

On 
Mon, 2011-12-12 at 12:05 +0100, Thomas Wollner wrote:
...
Hello,
to 
separate the destination logfiles for each host, use the following
destination d_file_foreach_host {
...
file("/var/log/$FULLHOST.log");
}
...
log {
  source(s_all);
  destination
(d_file_foreach_host),
...
};
hope it helps,
regards,
Tom

...
Zitat von "tokie@tiscali.it" <tokie@tiscali.it>:
...
...
Try
using the netmask filter.
...
...
...
filter f_host_a_b_c_d {
netmask
...
("a.b.c.d/32");
...
};
Tks for reply,
I tried 
but don't work!
More
specific:
I wish that all devicies in 
my network, logging into a
specific file on syslog server.
Now all files log all devicies!!
...
I
have the same result in 
different
file(100.log, 101.log, and so on)
Must I use 
iptables's match?? How??
tks
Tokie
p.s.:
netmask
("a.b.c.
d/32") or netmask("a.b.c.d/255.255.255.255") ???
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[syslog-ng] R: syslog-ng Digest, Vol 80, Issue 18

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