[syslog-ng] Syslog-ng Multiple Instances

[David Campeau]

I'm not sure of the syntax needed to connect to the socket or how to prepare the system.

Below is just a blind attempt to connect to a socket.  The 2nd instance of syslog-ng is running and listening on port 518.

I created a directory under /run called "syslog-ng-Second-Instance" and tried to connect...  However Connection is refused. 

Command Used:
root at syslog-ng:# syslog-ng-ctl verbose --set=on --control=/run/syslog-ng-Second-Instance
Error connecting control socket, socket='/run/syslog-ng-Second-Instance', error='Connection refused'


Any thoughts on the correct syntax and preparation needed?


Best Regards,





-----Original Message-----
From: jrhendri at roadrunner.com [mailto:jrhendri at roadrunner.com] 
Sent: Tuesday, June 28, 2016 3:00 PM
To: Syslog-ng users' and developers' mailing list; David Campeau
Subject: RE: [syslog-ng] Syslog-ng Multiple Instances

Maybe this?

If you need to use a non-standard control socket to access syslog-ng,
       use the syslog-ng-ctl <command> --set=on --control=<socket> command to
       specify the socket to use.



---- David Campeau <David.Campeau at tn.gov> wrote: 
> Jim,
> 
> No errors as the instance starts normally and listens on port 518. However, no logs are received or forwarded. 
> 
> root at syslog-ng1:/usr/local/bin/syslog-ng-Second-Instance# netstat -an |grep 518
> udp        0      0 0.0.0.0:518             0.0.0.0:*
> 
> The test device is on the same subnet as syslog-ng listening on port 518, so there aren't any firewall issues. I've verified the test device is configured for port 518.
> 
> However, when I check ctl stats, it's seeing the stats of the production syslog-ng instance.  So, it appears this is improperly configured, but it's unknown what needs to be changed.
> 
> Best Regards,
> 
> 
> -----Original Message-----
> From: jrhendri at roadrunner.com [mailto:jrhendri at roadrunner.com] 
> Sent: Tuesday, June 28, 2016 12:53 PM
> To: Syslog-ng users' and developers' mailing list
> Cc: David Campeau
> Subject: Re: [syslog-ng] Syslog-ng Multiple Instances
> 
> The only thing that would limit the number of instances that I am aware of are conflicts for opening things like network ports, connections to databases, maybe FIFOs, etc.
> 
> I would look at that as a place to start.
> 
> What kind of errors are you getting when you try to start the second instance?
> 
> Jim
> 
> ---- David Campeau <David.Campeau at tn.gov> wrote: 
> > Hello,
> > 
> > I've been using syslog-ng to filter syslog before forwarding on to a log collector. However, I need to spin up a second instance for testing purposes. I've found a little bit of information on-line, but it hasn't completed the entire picture.
> > 
> > This is the command used to start up the 2nd instance. I'm pointing to separate .conf .persist .pid and .ctl files -- However, it's still not working. I suspect the issue is due to OS log sources. How do a change log sources?
> > 
> > syslog-ng --cfgfile=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.conf --persist-file=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.persist --pidfile=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.pid --control=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.ctl &
> > 
> > This is the upper part of the syslog-ng.conf file for the 2nd instance I wish to run.
> > 
> > @version: 3.3.4
> > @include "scl.conf"
> >     options {
> >         time-reap(30);
> >         mark-freq(10);
> >         keep-hostname(yes);
> >         chain-hostnames(no);
> >         use-dns(no);
> > ##       log-fifo-size(500000);                ## Tuning Options
> > ##      flush_lines(10000);                   ## Tuning Options
> > ##       flush_timeout(10000);                ## Tuning Options
> >     };
> > 
> >         source s_second_instance {
> >         syslog(transport("udp") port("518"));       #### Will receive test syslog on port 518
> >         };
> > 
> >     destination d_syslog_udp {
> >         syslog("10.X.X.X"
> >             transport("udp")
> >             port("514")
> >             throttle(4000)
> >         );
> >     };
> > 
> > 
> > 
> > I'm hoping someone has experience or has seen information on how to run a 2nd instance on the same box.
> > 
> > Best Regards,
> > 
> > David
>