varnishadm - Control a running Varnish instance
varnishadm [-t timeout] [-S secret_file] [-T address:port] [-n name]
The varnishadm utility establishes a CLI connection to varnishd either
using -n name or using the -T and -S arguments. If -n name is given the
location of the secret file and the address:port is looked up in shared
memory. If neither is given varnishadm will look for an instance
without a given name.
If a command is given, the command and arguments are sent over the CLI
connection and the result returned on stdout.
If no command argument is given varnishadm will pass commands and
replies between the CLI socket and stdin/stdout.
Wait no longer than this many seconds for an operation to
Specify the authentication secret file. This should be the same
-S argument as was given to varnishd. Only processes which can
read the contents of this file, will be able to authenticate the
Connect to the instance of varnishd with this name.
Connect to the management interface at the specified address and
The syntax and operation of the actual CLI interface is described in
the varnish-cli(7) manual page. Parameteres are described in
varnishd(1) manual page.
Additionally, a summary of commands can be obtained by issuing the help
command, and a summary of parameters can be obtained by issuing the
If a command is given, the exit status of the varnishadm utility is
zero if the command succeeded, and non-zero otherwise.
Some ways you can use varnishadm:
varnishadm -T localhost:999 -S /var/db/secret vcl.use foo
echo vcl.use foo | varnishadm -T localhost:999 -S /var/db/secret
echo vcl.use foo | ssh vhost varnishadm -T localhost:999 -S /var/db/secret
The varnishadm utility and this manual page were written by Cecilie
Fritzvold. Converted to reStructuredText and updated in 2010 by Per
This document is licensed under the same licence as Varnish itself. See
LICENCE for details.
· Copyright (c) 2007-2014 Varnish Software AS