AMSERVICE(8)            System Administration Commands            AMSERVICE(8)

       amservice - run an amanda service on a client

       amservice [-f input_file [-s]] [--config CONFIG]
                 [--features FEATURES-STRING] [--stream NAME,IN,OUT]*
                      [-o configoption...] hostname auth service

       Amservice execute an Amanda service on a client. It can be used without
       amanda server configuration (amanda.conf and disklist). It can be used
       to check communication between a server and a client. Amservice reads
       stdin to capture the REQ packet to send to the client.

       See the amanda(8) man page for more details about Amanda.

           The hostname of the client.

           The auth to use, one of: bsd, bsdudp, bsdtcp, ssh, rsh or krb5. The
           client must be configured with this auth.

           The amanda service to execute on the client. One of noop, selfcheck
           or sendsize.

       -f input_file
           Use the file input_file instead of stdin to read the REQ packet

           Redirect the first connected stream to stdin/stdout. The -f
           argument is required for the REQ packet, the REP packet is not
           printed on stdout.

           The amanda configuration.

       --features FEATURES-STRING
           The features of the remote client.

       --stream NAME,IN,OUT
           The vstream to open, their name and the two file descriptors.

       -o configoption
           See the "CONFIGURATION OVERRIDE" section in amanda(8).

       The noop service is easy to execute because it does not require a REQ
       amservice hostname bsdtcp noop < /dev/null

       The example executes the noop service on the client using bsdtcp auth.
       This is useful for debugging connection problems. It print an OPTIONS
       line upon success.

       It is more difficult to execute the selfcheck or sendsize service, as
       these require a valid REQ packet. If you have already uccessfully run
       amanda, you can find valid REQ packets in the amandad.*.debug files.

       The exit code of amservice is one of:
        0  = success
        1  = error executing amandad on the client.

       As amservice doesn't parse the REP packet, it can only detect failures
       in executing amandad on the client.  amservice can exit with value 0
       even if the user is not authorized to execute the service. An error
       message will be printed.

       amanda(8), amanda(8), amcheck(8), amdump(8), amadmin(8)

       The Amanda Wiki: :

       Jean-Louis Martineau <>
           Zmanda, Inc. (

Amanda 3.5.1                      12/01/2017                      AMSERVICE(8)