Hi, I'm observing that syslog-ng is modifying the SYSLOGHOST in the incoming log line and outputting an IP instead. I would like to retain the incoming hostname in incoming syslog and forward the same information. Here is my incoming log line: <13>Nov 29 04:07:40 BVRM-DC04 AgentDevice=WindowsLog\tAgentLogFile=Security\tPluginVersion=7.2.8.91\tSource=Microsoft-Windows-Security-Auditing\tComputer= BVRM-DC04.xxxxxxxx.com\tOriginatingComputer=172.26.1.60\tUser=\tDomain=\tEventID=4634\tEventIDCode=4634\tEventType=8\tEventCategory=12545\tRecordNumber=166757582\tTimeGenerated=1575029259\tTimeWritten=1575029259\tLevel=Log Always\tKeywords=Audit Success\tTask=SE_ADT_LOGON_LOGOFF\tOpcode=Info\tMessage=An account was logged off. Outgoing log line: <13>Nov 29 04:07:40 172.22.2.55 AgentDevice=WindowsLog\tAgentLogFile=Security\tPluginVersion=7.2.8.91\tSource=Microsoft-Windows-Security-Auditing\tComputer= BVRM-DC04.xxxxxxxx.com\tOriginatingComputer=172.26.1.60\tUser=\tDomain=\tEventID=4634\tEventIDCode=4634\tEventType=8\tEventCategory=12545\tRecordNumber=166757582\tTimeGenerated=1575029259\tTimeWritten=1575029259\tLevel=Log Always\tKeywords=Audit Success\tTask=SE_ADT_LOGON_LOGOFF\tOpcode=Info\tMessage=An account was logged off. FYI, this is log from Windows, but same is happening for syslog from other firewalls as well. My syslog-ng.conf: @version: 3.24 @include "scl.conf" ######################## # Sources ######################## source s_test_net { syslog(transport(udp) port(2514) ); }; ######################## # Destinations ######################## destination d_test { file("/tmp/test.log"); }; ######################## # Log paths ######################## log { source(s_test_net); destination(d_test); }; Thanks Raghu