[syslog-ng] syslog-ng with multiple destinations

[swald.ext at orange.com]

Hello,

We are a syslog-ng configuration with multiple destinations :

source s_remote_udp {
  udp(ip(0.0.0.0) port(514));
};

source s_remote_tcp {
  tcp(ip(0.0.0.0) port(514) max-connections(1000) so_keepalive(yes));
};

destination d_SIEM_ { udp("10.0.1.145" port(514)); };
destination d_BOX_ { file("/var/log/box/FLOW_$R_MONTH$R_DAY$R_HOUR$R_MIN.log" create_dirs(yes) dir_perm(0755) dir_owner(root) dir_group(root) owner(root) group(root)); };

filter f_SIEM_ { match("FLOW:"); };

log { source(s_remote_udp); source(s_remote_tcp); filter(f_SIEM_); destination(d_BOX_); destination(d_SIEM_);flags(flow-control,final); };

We can see kind of errors :
/var/log/syslog-ng.log : Aug  4 23:34:39 host1 syslog-ng[16290]: I/O error occurred while reading; fd='32', error='Connection reset by peer (104)'

We lose some logs. We have a syslog-ng version 3.2.

Can you help please please ?

How can I diagnose the problem? How do I get to the root of the problem? Maybe debugging syslog-ng?

Thanks in advance.

Best regards. Sebastian.


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