VARNISHADM(1)                                                    VARNISHADM(1)

       varnishadm - Control a running Varnish instance

       varnishadm [-h] [-n ident] [-t timeout] [-S secretfile] [-T
       [address]:port] [command [...]]

       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.

       -h     Print program usage and exit.

       -n ident
              Connect to the instance of varnishd with this name.

       -S secretfile
              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
              CLI connection.

       -t timeout
              Wait no longer than this many seconds for an operation to

       -T <address:port>
              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. Parameters 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 command.

       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

       · varnishd(1)

       · varnish-cli(7)

       The varnishadm utility and this manual page were written by Cecilie
       Fritzvold. This man page has later been modified by Per Buer, Federico
       G.  Schwindt and Lasse Karstensen.