This is for statistical purposes and the tracing of protocol violations. It should be included by all clients. The first white space delimited word must be the software product name, with an optional slash and version designator. Other products which form part of the user agent may be put as separate words.
NCSA Mosaic for the X Window System/2.5 libwww/2.12 modified
AgentLog file
file
is the name of the file to which user agents will be
logged. It is either a full pathname, or a partial pathname
relative to ServerRoot.
Only one AgentLog directive is allowed in the configuration file.
AgentLog logs/agent_log
AgentLog logs/agents
This logs user agents to the file logs/agents in the ServerRoot directory.
AgentLog /tmp/httpd-agents
This logs user agents to the file /tmp/httpd-agents
.
AgentLog /dev/null
This effectively turns off agent logging.