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.. include:: ../../common.defs

.. configfile:: log_hosts.config

log_hosts.config
****************

To record HTTP transactions for different origin servers in separate log files,
you must list each origin server hostname in the :file:`log_hosts.config` file.

You should use the same :file:`log_hosts.config` file on every |TS| node in
your cluster. After you modify the :file:`log_hosts.config` file, run the
:option:`traffic_ctl config reload` command to apply the changes. When you
apply the changes to a node in a cluster, |TS| automatically applies the
changes to all other nodes in the cluster.

Format
======

Each line in the :file:`log_hosts.config` file has the following format::

    hostname

where ``hostname`` is the hostname of the origin server.

.. hint::

    You can specify keywords in the :file:`log_hosts.config` file to
    record all transactions from origin servers with the specified keyword
    in their names in a separate log file. See the example below.

Examples
========

The following example configures Traffic Server to create separate log
files containing all HTTP transactions for the origin servers
``webserver1``, ``webserver2``, and ``webserver3``::

    webserver1
    webserver2
    webserver3

The following example records all HTTP transactions from origin servers
that contain ``sports`` in their names. For example:
``sports.yahoo.com`` and ``www.foxsports.com`` in a log file called
``squid-sport.log`` (the Squid format is enabled)::

    sports