[syslog-ng] sending log messages to graylog

[Rodney Bizzell]

/var/log/messages

On Tue, Nov 6, 2018, 9:50 AM Sandor Geller <sandor.geller at ericsson.com
wrote:

> Hello,
>
> On 11/06/2018 01:57 PM, Rodney Bizzell wrote:
>
> If you look to the bottom of the config I have made changes to source(sys)
> pointing it to my graylog server. I am reading through the documentation I
> am thinking that should send the logs to graylog server  I am just asking
> I apologize if I am making assumptions. The documentation isn't always
> clear, so I am just asking if I want to send /var/logs to my graylog server
> do I need to add a new source for var log?
>
>
> There is no such thing as /var/logs, please be much more precise. It
> doesn't make any sense to read back contents of files written by syslog-ng
> itself, such potential logging loops should get avoided anyway. If you've
> got additional stuff under /var/log (some apps could log there directly)
> then you can add these files as sources to process them by syslog-ng. Your
> current configuration doesn't contain such source definitions.
>
>  options {
>
>     flush_lines (0);
>
>     time_reopen (10);
>
>     log_fifo_size (250000);
>
>     chain_hostnames (off);
>
>     use_dns (no);
>
>     use_fqdn (no);
>
>     create_dirs (no);
>
>     keep_hostname (yes);
>
> };
>
>
> source s_sys {
>
>     system();
>
>     internal();
>
>      udp(ip(0.0.0.0) port(514));
>
> };
>
>
> source s_net {
>
> udp(ip(0.0.0.0) port(514));
>
> tcp(ip(0.0.0.0) port(514) max-connections(256));
>
> };
>
> Note: you're using the same udp() source twice (the first occurence is in
> the s_sys source) so one of them won't receive messages
>
> destination d_cons { file("/dev/console"); };
>
> destination d_mesg { file("/var/log/messages"); };
>
> destination d_auth { file("/var/log/secure"); };
>
> destination d_mail { file("/var/log/maillog" flush_lines(10)); };
>
> destination d_spol { file("/var/log/spooler"); };
>
> destination d_boot { file("/var/log/boot.log"); };
>
> destination d_cron { file("/var/log/cron"); };
>
> destination d_kern { file("/var/log/kern"); };
>
> destination d_mlal { usertty("*"); };
>
>
>
> destination d_graylog {
>
> tcp("graylog.server”
>
> port (12201)
>
> );
>
> };
>
>
>
> filter f_kernel     { facility(kern); };
>
> filter f_default    { level(info..emerg) and
>
>                         not (facility(mail)
>
>                         or facility(authpriv)
>
>                         or facility(cron)); };
>
> filter f_auth       { facility(authpriv); };
>
> filter f_mail       { facility(mail); };
>
> filter f_emergency  { level(emerg); };
>
> filter f_news       { facility(uucp) or
>
>                         (facility(news)
>
>                         and level(crit..emerg)); };
>
> filter f_boot   { facility(local7); };
>
> filter f_cron   { facility(cron); };
>
>
> log { source(s_sys); filter(f_kernel); destination(d_cons); };
>
> log { source(s_sys); filter(f_kernel); destination(d_kern); };
>
> log { source(s_sys); filter(f_default); destination(d_mesg); };
>
> log { source(s_sys); filter(f_auth); destination(d_auth); };
>
> log { source(s_sys); filter(f_mail); destination(d_mail); };
>
> log { source(s_sys); filter(f_emergency); destination(d_mlal); };
>
> log { source(s_sys); filter(f_news); destination(d_spol); };
>
> log { source(s_sys); filter(f_boot); destination(d_boot); };
>
> log { source(s_sys); filter(f_cron); destination(d_cron); };
>
>
>
>
> log { source(s_net); destination(d_graylog); };
>
> log { source(s_sys); filter(f_default); destination(d_graylog);};
>
> log { source(s_sys); filter(f_kernel); destination(d_graylog); };
>
> log { source(s_sys); filter(f_default); destination(d_graylog); };
>
> Note: the last line is a duplicate of the entry two lines earlier so will
> duplicate the data sent to d_graylog so it should get deleted. Also note
> that the intersection of the f_kernel and f_default filters isn't empty so
> some kernel messages would be sent twice to d_graylog.
>
> Regards,
> Sandor
>
>
> ______________________________________________________________________________
> Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
> Documentation:
> http://www.balabit.com/support/documentation/?product=syslog-ng
> FAQ: http://www.balabit.com/wiki/syslog-ng-faq
>
>
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