NAME

       mosh-server - server-side helper for mosh

SYNOPSIS

       mosh-server new [-s] [-v] [-i IP] [-p PORT[:PORT2]] [-c COLORS] [-- command...]

DESCRIPTION

       mosh-server is a helper program for the mosh(1) remote terminal application.

       mosh-server binds to a high UDP port and chooses an encryption key to protect the session. It prints both
       on standard output, detaches from the terminal, and waits for the mosh-client to establish a  connection.
       It will exit if no client has contacted it within 60 seconds.

       By default, mosh-server binds to a port between 60000 and 61000 and executes the user's login shell.

       On  platforms  with  utempter, mosh-server maintains an entry in the utmp(5) file to indicate its process
       ID, whether the session is connected, and the client's current IP address.

       mosh-server exits when the client terminates the connection.

OPTIONS

       The argument "new" must be first on the command line to use command-line options.

       -s     bind to the local interface used for an incoming  SSH  connection,  given  in  the  SSH_CONNECTION
              environment variable (for multihomed hosts)

       -v     Print some debugging information even after detaching.  More instances of this flag will result in
              more debugging information.

       -i IP  IP address of the local interface to bind (for multihomed hosts)

       -p PORT[:PORT2]
              UDP port number or port-range to bind.  -p 0 will let the operating system pick an  available  UDP
              port.

       -c COLORS
              Number of colors to advertise to applications through TERM (e.g. 8, 256)

       -l NAME=VALUE
              Locale-related  environment  variable  to  try  as  part of a fallback environment, if the startup
              environment does not specify a character set of UTF-8.

ENVIRONMENT VARIABLES

       These variables allow server-side configuration of Mosh's behavior.  They may be set by administrators in
       system  login/rc files, /etc/login.conf, or similar mechanisms, or users in their shell's login/rc files.
       mosh-server passes these variables to the login session and shell that it starts, but changing them there
       will have no effect.

       MOSH_SERVER_NETWORK_TMOUT
              If  this  variable  is  set to a positive integer number, it specifies how long (in seconds) mosh-
              server will wait to receive an update from the client before exiting.  Since mosh is  very  useful
              for  mobile clients with intermittent operation and connectivity, we suggest setting this variable
              to a high value, such as 604800 (one week) or 2592000 (30 days).  Otherwise, mosh-server will wait
              indefinitely  for  a  client to reappear.  This variable is somewhat similar to the TMOUT variable
              found in many Bourne shells.  However, it is not  a  login-session  inactivity  timeout;  it  only
              applies to network connectivity.

       MOSH_SERVER_SIGNAL_TMOUT
              If  this  variable  is  set to a positive integer number, it specifies how long (in seconds) mosh-
              server will ignore SIGUSR1 while waiting to receive an update from the client.  Otherwise, SIGUSR1
              will  always  terminate  mosh-server.   Users and administrators may implement scripts to clean up
              disconnected Mosh sessions.  With this variable set, a user or administrator can issue

              $ pkill -SIGUSR1 mosh-server

              to kill disconnected sessions without killing connected login sessions.

EXAMPLE

       $ mosh-server

       MOSH CONNECT 60001 UAkFedSsVJs2LfMeKyQB5g

       mosh-server (mosh 1.1)
       [...] (copyright notice omitted)

       [mosh-server detached, pid = 20443]

SEE ALSO

       mosh(1), mosh-client(1).

       Project home page: https://mosh.org

AUTHOR

       mosh was written by Keith Winstein <mosh-devel@mit.edu>.

BUGS

       Please report bugs to mosh-devel@mit.edu. Users may also  subscribe  to  the  mosh-users@mit.edu  mailing
       list, at
       http://mailman.mit.edu/mailman/listinfo/mosh-users

                                                  October 2012                                           MOSH(1)