[syslog-ng] Syslog-ng beginners guide

Wed Jul 1 14:22:20 CEST 2009

Hi,
I don't see anything in your config...
Are you sure your syslog messages are sent to the UDP port syslog-ng is listing at (normally: 514)?
Did you proof the with one of snoop, ethereal, wireshark and the like?
Just an idea... hth
Ulli

________________________________

Von: syslog-ng-bounces at lists.balabit.hu [mailto:syslog-ng-bounces at lists.balabit.hu] Im Auftrag von Cosmin Neagu
Gesendet: Mittwoch, 1. Juli 2009 14:15
An: Syslog-ng users' and developers' mailing list
Betreff: Re: [syslog-ng] Syslog-ng beginners guide

Hello again, 
Things are evolving a little bit.

Now the syslog-ng conf is configured like this:

source s_router_udp { udp (); };
destination d_mysql { pipe("/tmp/mysql.pipe" template("INSERT INTO syslog_incoming (facility, priority, date, time, host, message, seq) VALUES ( '$FACILITY', '$PRIORITY', '$YEAR-$MONTH-$DAY', '$HOUR:$MIN:$SEC', '$HOST', '$MSG', '$SEQ' );\n") template-escape(yes));
};
log { source (s_router_udp); destination (d_mysql); };
log { source (s_sys); destination(d_mysql); };

The second log statement is working, because i can see in the syslog_incoming tables, entries and also i see the log in Cacti:
mysql> select * from syslog_incoming;
+----------+----------+------------+----------+---------------+------------------------------------------------------------------+-----+--------+
| facility | priority | date       | time     | host          | message                                                          | seq | status |
+----------+----------+------------+----------+---------------+------------------------------------------------------------------+-----+--------+
| syslog   | info     | 2009-07-01 | 14:56:45 | monitorizare1 | syslog-ng[20083]: Termination requested via signal, terminating; |  22 |      0 |
| syslog   | notice   | 2009-07-01 | 14:56:45 | monitorizare1 | syslog-ng[20083]: syslog-ng shutting down; version='2.0.10'      |  23 |      0 |
| syslog   | notice   | 2009-07-01 | 14:56:45 | monitorizare1 | syslog-ng[21587]: syslog-ng starting up; version='2.0.10'        |  24 |      0 |
| authpriv | info     | 2009-07-01 | 11:56:06 | monitorizare1 | sshd[21567]: Connection closed by 127.0.0.1                      |  21 |      0 |
+----------+----------+------------+----------+---------------+------------------------------------------------------------------+-----+--------+
4 rows in set (0.00 sec)

But i don't know what is the problem and how to fix with the first log statement. Can anyone help a little? Maybe with some documentation, maybe someone encountered a similar problem?

PS: something else that i noticed and i don't know what it means.
One of the syslog-ng messages is like this:
syslog-ng[20083]: Log statistics; dropped='pipe(/tmp/mysql.pipe)=0', processed='center(queued)=30', processed='center(received)=15', processed='destination(d_boot)=0', processed='destination(d_auth)=4', processed='destination(d_cron)=9', processed='destination(d_mysql)=15', processed='destination(d_mlal)=0', processed='destination(d_mesg)=2', processed='destination(d_cons)=0', processed='destination(d_spol)=0', processed='destination(d_mail)=0', processed='source(s_sys)=15', processed='source(s_router_udp)=0'

What could be the cause for that "dropped" there? Should'nt be processed?

Cosmin Neagu
NOC Team Leader
Str. I. G. Duca nr 36
Otopeni, Judetul Ilfov, 075100 Romania
Tel: 021 303 3159 / 0732 669 193
www.omnilogic.ro

Cosmin Neagu wrote: 

	    Thanks allot Ulrich, that site contains great documentation, i'm starting to understand how syslog-ng works.
	But, let me tell you the problem with wich i'm stuck right now.

	    A router is sending syslog messages to a linux box (Fedora) from 10.0.0.1. I can see the messages arriving at the server.
	[root at monitorizare1 ~]# tcpdump -v src 10.0.0.1
	tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
	10:09:07.941254 IP (tos 0x0, ttl 255, id 80, offset 0, flags [none], proto UDP (17), length 115) 10.0.0.1.65150 > 192.168.53.248.syslog: SYSLOG, length: 87
	        Facility local7 (23), Severity error (3)
	        Msg: 81: *Jul  1 10:09:10.027: %LINK-3-UPDOWN: Interfa[|syslog]
	10:09:08.760267 IP (tos 0x0, ttl 255, id 81, offset 0, flags [none], proto UDP (17), length 138) 10.0.0.1.65150 > 192.168.53.248.syslog: SYSLOG, length: 110
	        Facility local7 (23), Severity info (6)
	        Msg: 82: *Jul  1 10:09:10.031: %ENTITY_ALARM-6-INFO: C[|syslog]
	10:09:09.755868 IP (tos 0x0, ttl 255, id 82, offset 0, flags [none], proto UDP (17), length 137) 10.0.0.1.65150 > 192.168.53.248.syslog: SYSLOG, length: 109
	        Facility local7 (23), Severity notice (5)

	I have configured syslog-ng.conf like this:
	source s_router_udp {
	        internal();
	        file ("/proc/kmsg" log_prefix("kernel: "));
	        udp (ip(0.0.0.0) port ( 514 ) );
	        #unix-stream ("/dev/log");
	};
	destination d_localfile {
	file ("/root/testlog");
	};
	log {
	        source (s_router_udp);
	        destination (d_localfile);
	};

	The problem is that in /root/testlog i can't see any log, except those internal generated by syslog-ng:
	Jul  1 09:31:36 monitorizare1 syslog-ng[17787]: syslog-ng starting up; version='2.0.10'
	Jul  1 09:32:49 monitorizare1 syslog-ng[17787]: Termination requested via signal, terminating;
	Jul  1 09:32:50 monitorizare1 syslog-ng[17812]: syslog-ng starting up; version='2.0.10'
	Jul  1 09:42:50 monitorizare1 syslog-ng[17812]: Log statistics; processed='center(queued)=6', processed='center(received)=6', processed='destination(d_boot)=0', processed='destination(d_auth)=2', processed='des
	tination(d_cron)=2', processed='destination(d_mlal)=0', processed='destination(d_localfile)=1', processed='destination(d_mesg)=1', processed='destination(d_cons)=0', processed='destination(d_spol)=0', processed
	='destination(d_mail)=0', processed='source(s_sys)=5', processed='source(s_router_udp)=1'
	Jul  1 09:45:11 monitorizare1 syslog-ng[17812]: Termination requested via signal, terminating;
	Jul  1 09:45:11 monitorizare1 syslog-ng[18840]: syslog-ng starting up; version='2.0.10'
	Jul  1 09:47:43 monitorizare1 syslog-ng[18840]: Termination requested via signal, terminating;
	Jul  1 09:47:43 monitorizare1 syslog-ng[19009]: syslog-ng starting up; version='2.0.10'

	I can't find anything in the syslog-ng guide admin about how can messages received from remote hosts can be inserted into files.

	Can anyone help me? I feel that i'm close to a solution.

	Ulrich.Wiemers at t-systems.com wrote: 

		Hi,
		I was in a similar situation some weeks ago.
		Admin Guide found at http://www.balabit.com/support/documentation/?product=syslog-ng was of great help to me.
		And, of course, Google ,-)

		hth

		Ulli

		-----Ursprüngliche Nachricht-----
		Von: syslog-ng-bounces at lists.balabit.hu [mailto:syslog-ng-bounces at lists.balabit.hu] Im Auftrag von Cosmin Neagu
		Gesendet: Dienstag, 30. Juni 2009 14:49
		An: syslog-ng at lists.balabit.hu
		Betreff: [syslog-ng] Syslog-ng beginners guide

		Hello everybody,
		Sorry for bothering you with a beginners question.
		I have a cacti implementation in my network and a want to integrate it with syslog-ng. I have mostly cisco routers, all configured to sent syslog messages to two linux boxes (Ubuntu 9.04 and FedoraCore 10) where i have installed syslog-ng.

		I'm not able to find where the logs are kept, so this drives me crazy.
		Do you know any site or resource where i can find some beginners guide about using syslog-ng with cisco routers? I mean, a guide for someone who never used syslog-ng before.
		Thanks.

		--
		Cosmin Neagu
		NOC Team Leader
		Str. I. G. Duca nr 36
		Otopeni, Judetul Ilfov, 075100 Romania
		Tel: 021 303 3159 / 0732 669 193
		www.omnilogic.ro

		______________________________________________________________________________
		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

________________________________

	______________________________________________________________________________
	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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