[syslog-ng] Log only one host

tokie at tiscali.it tokie at tiscali.it
Mon Dec 12 10:14:02 CET 2011


> 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") ???

----Messaggio 
originale----
Da: syslog-ng-request at lists.balabit.hu
Data: 10/12/2011 
12.00
A: <syslog-ng at lists.balabit.hu>
Ogg: syslog-ng Digest, Vol 80, 
Issue 15

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Today's Topics:

   1. Re:  syslog-ng 3.3.3 repeatedly writes same 
message to local
      file when forwarding enabled (Dave Haywood)
   
2. Re:  Log only one host (tokie at tiscali.it)
   3. Re:  Log to syslog 
file, filter from fifo (Balazs Scheidler)
   4.  [Bug 146] pdbtool 
match does not display tags
      (bugzilla at bugzilla.balabit.com)



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


Message: 1
Date: Fri, 09 Dec 2011 11:22:24 +0000
From: Dave Haywood 
<tla at oak.selfip.net>
Subject: Re: [syslog-ng] syslog-ng 3.3.3 
repeatedly writes same
	message to local file when forwarding enabled

To: Syslog-ng users' and developers' mailing list
	<syslog-ng at lists.
balabit.hu>
Cc: Sandor Geller <Sandor.Geller at morganstanley.com>
Message-
ID: <4EE1EF70.1060001 at oak.selfip.net>
Content-Type: text/plain; 
charset=ISO-8859-1

On 09/12/2011 09:53, Sandor Geller wrote:
> Sounds 
like messages sent to 192.168.0.7 are feeded back to syslog-ng
> so 
there is a logging loop. Is this address local? When not then there
> 
is a chance that the packet filter rule isn't correct.
  Thanks!  You 
were right, the issue was with the iptables rule.  I
was trying to 
capture traffic from localhost to port 514 and
redirect it to 1514 
using NAT table OUTPUT.  I use this for testing
every facility / 
severity combination during install.  But I didn't
specify a 
destination host (of the local IP address); I only
specified the port.  
This meant and traffic forwarded to a remote
host is redirected by 
iptables back to the localhost, causing a loop.

  Thanks for the help 
:)

>
> On Fri, Dec 9, 2011 at 10:34 AM, Dave Haywood <tla at oak.selfip.
net> wrote:
>> Hi,
>>
>>  I have a problem with syslog-ng 3.3.3.  When 
I have forwarding enabled to a remote syslog server (via UDP) syslog-ng 
repeatedly writes the same message(s) to the log file and only stops 
when the disk is full.  Using tcpdump on the remote server, I don't see 
any data arrive from the syslog-ng server so forwarding is not working 
either.
>>
>>  When I remove the forwarding part of the config file the 
local file is written correctly (ie once).  If I remove the local file 
part from the config file and only enable the forwarding, I see syslog-
ng take all the CPU time.  I never see any syslog messages arrive at 
the remote syslog server.
>>
>>  I tried:
>>        1) disabling IPv6 - 
no change
>>        2) running outside the chroot jail - no change

>>        3) running as userid root - no change
>>
>>  Does anyone have 
any idea what would cause this?  Debug info below.
>>
>>  The 
environment is:
>>
>> RedHat AS 4.8 (linux 2.6.9-89.ELsmp) on vmware 
ESXi 4.1.0
>>
>> All required software built and installed in 
/usr/local/ :
>>
>> eventlog_0.2.12.tar.gz
>> gettext-0.18.1.1.tar.gz

>> glib-2.29.90.tar.bz2
>> libdbi-0.8.4.tar.gz
>> libdbi-drivers-0.8.3.
tar.gz
>> libffi-3.0.9.tar.gz
>> libnet-0.10.11.tar.gz
>> pkg-config-
0.26.tar.gz
>> Python-2.7.2.tar.bz2
>> zlib-1.2.5.tar.bz2
>> syslog-
ng_3.3.3.tar.gz
>>
>> syslog-ng is running chroot() in directory /data 
as user


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