Your problem is the non-standard (sort of) configuration of: service timestamps log datetime msec localtime show-timezone Cisco is adding the colon at the end of the date "Nov 10 10:18:44.102 UTC:" which is causing syslog-ng to misparse it. One easy workaround that will make your life easier (but might not be possible for other reasons) would be to turn off timestamps and use the $R_TIMESTAMP macro (double-check that name, I use $R_UNIXTIME) in syslog-ng to record the actual time of receipt. Another possibility is adding the no-parse flag to the source so that at least the message will be passed along verbatim. Lastly, you could write a regular expression to parse out the right information. Here's one that will probably work: filter f_rewrite_cisco_program { match('(%[^:]+): ([^\n]+)'' value("MESSAGE") type("pcre") flags("store-matches" "nobackref")); }; rewrite r_cisco_program { set("$1", value("PROGRAM") condition(filter(f_rewrite_cisco_program))); set("$2", value("MESSAGE") condition(filter(f_rewrite_cisco_program))); }; which should pull out the program (between % and :) and the message. On Tue, Nov 22, 2011 at 5:03 AM, Wells, James <James.Wells@rbccm.com> wrote:
Hi All,
Can anyone assist with the issue below
Thanks James
_____________________________________________ From: Wells, James Sent: 10 November 2011 11:25 To: 'syslog-ng@lists.balabit.hu.' Subject: Cisco IOS message format
Hi All,
I am struggling to get syslog-ng to output the correct format for Cisco IOS devices. I am using syslog-ng to forward message to a NMS system. The issue I see is syslog-ng upon forwarding adds more data to the message as I am assuming it does not understand the Cisco IOS syslog format.
Version of syslog-ng:
Name : syslog-ng Relocations: (not relocatable) Version : 2.1.4 Vendor: Fedora Project Release : 9.el5 Build Date: Mon 16 May 2011 15:09:47 BST Install Date: Fri 21 Oct 2011 12:26:04 BST Build Host: x86-01.phx2.fedoraproject.org Group : System Environment/Daemons Source RPM: syslog-ng-2.1.4-9.el5.src.rpm
Cisco IOS statements:
service timestamps log datetime msec localtime show-timezone logging trap notifications logging facility local6
Syslog format in the local file:
Nov 10 10:18:44.102 UTC: %SYS-5-CONFIG_I: Configured from console by testuser on vty0 (1.2.3.4)
Syslog-ng conf file:
options {
sync(0); time_reopen(10); log_fifo_size(1000); long_hostnames(off); check_hostname(yes); keep_hostname(yes); chain_hostnames(no); use_time_recvd(yes);
};
template("$MSGONLY\n")
When I perform a TCPDUMP and view the incoming message and then the forwarded message I can see that syslog-ng adds more data to the MESSAGE aspect of the syslog.
Has anyone been able to create a filter or template that manages this format, so that the forwarding of the syslog onto another receiver is not changed as syslog-ng is adding the $DATE and $HOST to the message.
Thanks in advance James
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