Hi, I am using syslog-ng open source (syslog-ng-3.0.3-1.rhel5.amd64) for log collection. I want to pass the syslog-ng machine ip address in the message header. in the current configuration I am getting following header in the log message --> Sep 29 00:24:20 INBLRECIS2871 '' In the above message "INBLRECIS2871" is the syslog-ng machine name but I want the IP address in place of machine name. let me know how to achieve this ? Current configurastion --> 1) syslog-ng client config :-> options { mark_freq(30); log_msg_size(65530); } destination d_messages { syslog("3.2.20.26" transport("tcp") port(601) template("$HOST $MSGHDR$MSG ::::$FILE_NAME")); } 2) syslog-ng server config-> options { time_reap(30); mark_freq(10); log_msg_size(65530); } Regards, Vaibhav