[syslog-ng] Syslog-ng not receiving messages

keshava V mv.keshava at gmail.com
Thu Nov 18 00:14:24 CET 2010


We had a old syslog-ng server which was completely configured and working
fine which died. I am using the same IP address so I can confidently say
that firewall is open and all the messages are arriving at the new server.
syslog is writing messages to the destination but the messages coming on
udp/tcp 514. I am trying to get it to write to one file and if that works
then to filter all the messages later by host.

I have attached the tcpdump output here and see info, debug messages making
it to this server

17:03:47.495842 IP aspsyslog.filenet-cm > neo.domain: 32289+ PTR?
41.34.73.10.in-addr.arpa. (42)
17:03:47.496324 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 182
17:03:47.496373 IP 10.140.141.7.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 164
17:03:47.496395 IP 10.140.141.7.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 164
17:03:47.496530 IP neo.domain > aspsyslog.filenet-cm: 32289 NXDomain* 0/1/0
(128)
17:03:47.497113 IP aspsyslog.ssh > nim.42783: P 48256:49264(1008) ack 97 win
53 <nop,nop,timestamp 93630177 1310858340>
17:03:47.497603 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 166
17:03:47.497635 IP nim.42783 > aspsyslog.ssh: . ack 49264 win 32761
<nop,nop,timestamp 1310858341 93630124>
17:03:47.506126 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.debug, length: 86
17:03:47.506169 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 189
17:03:47.521584 IP 10.140.130.20.filenet-pa > aspsyslog.syslog: SYSLOG
daemon.info, length: 107
17:03:47.521615 IP aspsyslog. > 10.140.130.20: ICMP host aspsyslog.
unreachable - admin prohibited, length 143
17:03:47.521907 IP aspsyslog.filenet-cm > neo.domain: 57020+ PTR?
20.130.140.10.in-addr.arpa. (44)
17:03:47.522331 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 182
17:03:47.522504 IP neo.domain > aspsyslog.filenet-cm: 57020 NXDomain* 0/1/0
(132)
17:03:47.523087 IP aspsyslog.ssh > nim.42783: P 49264:50416(1152) ack 97 win
53 <nop,nop,timestamp 93630203 1310858341>
17:03:47.523574 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 166
17:03:47.549950 IP 10.140.141.7.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 164
17:03:47.549973 IP 10.140.141.7.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 164
17:03:47.552109 IP 10.73.34.45.32822 > aspsyslog.syslog: SYSLOG daemon.info,
length: 109
17:03:47.552136 IP aspsyslog. > 10.73.34.45: ICMP host aspsyslog.
unreachable - admin prohibited, length 145
17:03:47.552410 IP aspsyslog.filenet-cm > neo.domain: 41657+ PTR?
45.34.73.10.in-addr.arpa. (42)
17:03:47.552852 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 182
17:03:47.553052 IP neo.domain > aspsyslog.filenet-cm: 41657 NXDomain* 0/1/0
(128)
17:03:47.553576 IP aspsyslog.ssh > nim.42783: P 50416:51392(976) ack 97 win
53 <nop,nop,timestamp 93630233 1310858341>
17:03:47.554127 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 166
17:03:47.558864 IP 10.140.141.8.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 177
17:03:47.558998 IP 10.140.141.9.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 188
17:03:47.559027 IP aspsyslog. > 10.140.141.9: ICMP host aspsyslog.
unreachable - admin prohibited, length 224
17:03:47.559031 IP 10.140.141.9.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 188
17:03:47.595714 IP axprod20.filenet-rpc > aspsyslog.syslog: SYSLOG
daemon.info, length: 108
17:03:47.595820 arp who-has axprod20. tell aspsyslog.
17:03:47.596053 IP aspsyslog.filenet-cm > neo.domain: 65192+ PTR?
25.130.140.10.in-addr.arpa. (44)
17:03:47.596226 IP aspsyslog. > axprod20.: ICMP host aspsyslog. unreachable
- admin prohibited, length 144
17:03:47.596434 IP 10.140.141.6.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 182
17:03:47.596540 IP 10.140.141.7.syslog > aspsyslog.syslog: SYSLOG
local4.info, length: 164
17:03:47.596549 IP 10.140.141.7.syslog > aspsyslog.syslog: SYSLOG
local4.debug, length: 86

On Wed, Nov 17, 2010 at 5:02 PM, Worsham, Michael <mworsham at scires.com>wrote:

>  Try running the syslog-ng application in debug mode: “syslog-ng –d –v”
> and see what the output is to the screen for the UDP connection and
> destination attempts.
>
>
>
>
>
> *From:* syslog-ng-bounces at lists.balabit.hu [mailto:
> syslog-ng-bounces at lists.balabit.hu] *On Behalf Of *keshava V
> *Sent:* Wednesday, November 17, 2010 5:59 PM
> *To:* Syslog-ng users' and developers' mailing list
> *Subject:* Re: [syslog-ng] Syslog-ng not receiving messages
>
>
>
> Messages from kernel, syslog-ng are being written but not the ones coming
> on udp 514  to the destination file as seen below.
>
> [root at aspsyslog ~]# ls -ltr /var/log/messages_syslog-ng.log
> -rw-r--r-- 1 root root 24645 2010-11-17 15:32
> /var/log/messages_syslog-ng.log
>
> Nov 17 14:28:55 s_all at aspsyslog syslog-ng[4460]: Configuration reload
> request received, reloading configuration;
> Nov 17 14:29:40 s_all at aspsyslog syslog-ng[4460]: Configuration reload
> request received, reloading configuration;
> Nov 17 14:30:09 s_all at aspsyslog syslog-ng[4460]: Configuration reload
> request received, reloading configuration;
> Nov 17 14:36:33 s_all at aspsyslog syslog-ng[4460]: Termination requested via
> signal, terminating;
> Nov 17 14:36:33 s_all at aspsyslog syslog-ng[4460]: syslog-ng shutting down;
> version='3.1.2'
> Nov 17 14:36:40 s_all at aspsyslog syslog-ng[8051]: syslog-ng starting up;
> version='3.1.2'
> Nov 17 14:40:49 s_all at aspsyslog syslog-ng[8051]: Configuration reload
> request received, reloading configuration;
> Nov 17 14:47:07 s_all at aspsyslog syslog-ng[8051]: Termination requested via
> signal, terminating;
> Nov 17 14:47:07 s_all at aspsyslog syslog-ng[8051]: syslog-ng shutting down;
> version='3.1.2'
> Nov 17 14:55:43 s_all at aspsyslog kernel: device eth0 entered promiscuous
> mode
> Nov 17 14:56:09 s_all at aspsyslog kernel: device eth0 left promiscuous mode
> Nov 17 14:58:04 s_all at aspsyslog kernel: device eth0 entered promiscuous
> mode
> Nov 17 14:58:11 s_all at aspsyslog kernel: device eth0 left promiscuous mode
>
>
>
>  On Wed, Nov 17, 2010 at 4:29 PM, Martin Holste <mcholste at gmail.com>
> wrote:
>
> Hm, maybe a permissions issue with writing?  Try putting in
> /tmp/somefile as the destination and see if that works.  Also, you
> should verify that messages are in fact arriving on the server using
> tcpdump.
>
>
> On Wed, Nov 17, 2010 at 3:44 PM, keshava Veerabhadraiah
> <mv.keshava at gmail.com> wrote:
> > Hi
> > I am new to syslog-ng and I have gone through other post to see if  I can
> > get a resolution to my problem.
> > Syslog is not writing to the destination file any messages received on
> udp()
> > or tcp().
> > I have made sure that syslog server is receiving the syslog messages as
> seen
> > from the tcpdump
> >
> >
> > 15:09:55.422423 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.warning, length: 153
> > 15:09:55.434638 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 184
> > 15:09:55.470383 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 176
> > 15:09:55.473519 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 190
> > 15:09:55.493361 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 180
> > 15:09:55.493748 IP aspsyslog.sungardebs.com.ssh >
> nim.sungardebs.com.42703:
> > P 128608:129696(1088) ack 289 win 461 <nop,nop,timestamp 88706531
> > 1310848493>
> > 15:09:55.495519 IP 10.140.141.9.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 188
> > 15:09:55.495548 IP 10.140.141.9.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.debug, length: 90
> > 15:09:55.495556 IP 10.140.141.9.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.debug, length: 85
> > 15:09:55.521115 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.debug, length: 87
> > 15:09:55.521188 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 188
> > 15:09:55.522041 IP 10.140.141.6.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 175
> > 15:09:55.522212 IP 10.140.141.7.syslog > aspsyslog.sungardebs.com.syslog:
> > SYSLOG local4.info, length: 164
> >
> >
> >
> > Here is how my syslog-ng config looks.
> >
> > @version: 3.0
> > #Default configuration file for syslog-ng.
> > #
> > # For a description of syslog-ng configuration file directives, please
> read
> > # the syslog-ng Administrator's guide at:
> > #
> > #
> http://www.balabit.com/dl/html/syslog-ng-admin-guide_en.html/bk01-toc.html
> > #
> >
> > options {
> >     chain_hostnames(no);
> >     create_dirs (no);
> >     dir_perm(0755);
> >     dns_cache(no);
> >     keep_hostname(yes);
> >     log_fifo_size(2048);
> >     log_msg_size(1024);
> >     log_iw_size (500);
> >     long_hostnames(on);
> >     perm(0644);
> >     stats_freq(3600);
> >     flush_lines(100);
> >     time_reopen (10);
> >     use_dns(no);
> >     use_fqdn(yes);
> > #    max_connections(100);
> >
> > };
> >
> > source s_all {
> > udp(so_rcvbuf(2048576));
> > tcp();
> > unix-stream("/dev/log");
> > internal();
> > file("/proc/kmsg");
> > };
> >
> > destination d_file_normal {file("/var/log/messages_syslog-ng.log"); };
> >
> > log { source(s_all); destination (d_file_normal); };
> >
> >
> > Any help would be greatly appreciated.
> >
> > Thanks
> >
> >
> >
> >
> >
> >
>
> >
> ______________________________________________________________________________
> > Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
> > Documentation:
> > http://www.balabit.com/support/documentation/?product=syslog-ng
> > FAQ: http://www.campin.net/syslog-ng/faq.html
> >
> >
> >
>
> ______________________________________________________________________________
> Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
> Documentation:
> http://www.balabit.com/support/documentation/?product=syslog-ng
> FAQ: http://www.campin.net/syslog-ng/faq.html
>
>
>
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