Hi,

When using logstash to send to our syslog server, the $HOST tag/attribute is incorrectly being set to whatever the target logging host is instead of the jenkins host.

E.g., we say we have a jenkins host jsci01 and a syslog logger host logger01.

Setting the syslog destination file to ${HOST}_jenkins.log you would expect to be jsci01_jenkins.log , but instead when using logstash it sends to logger01_jenkins.log .

Using the same settings (logger01, udp, RFC3164), the $HOST attribute is set to the jenkins host as expected when using the somewhat dated syslog-logger plugin.