msg

Description: Log message

Syntax: msg:'value'

Case Sensitive: Yes

Similar to logdata, msg also supports macro expansion.

Example:

SecRule ARGS "@rx test" "id:1001,deny,msg:'SQL Injection Detected'"

# msg with macro expansion
SecRule ARGS "@rx test2" "id:1002,deny,msg:'Deny the ip %{REMOTE_ADDR}'"