SSH Auslogzeit überlisten

[(Lutz Donnerhacke)]

* Johannes Vieweg wrote:
>Wie kann man bei SSH die Timeout ausschalten, bzw. verlängern??

$ man ssh
       ConnectionAttempts
              Specifies the number of tries (one per  second)  to
              make  before  falling  back to rsh or exiting.  The
              argument must be an integer.  This may be useful in
              scripts if the connection sometimes fails.
	      
       KeepAlive
              Specifies  whether the system should send keepalive
              messages to the other  side.   If  they  are  sent,
              death  of  the  connection  or  crash of one of the
              machines will be properly noticed.   However,  this
              means  that  connections  will  die if the route is
              down temporarily, and some people find it annoying.

              The  default is "yes" (to send keepalives), and the
              client will notice if the network goes down or  the
              remote  host  dies.   This is important in scripts,
              and many users want it too.

              To disable keepalives, the value should be  set  to
              "no"  in  both the server and the client configura­
              tion files.

FILES	      
       /etc/ssh/ssh_config
              Systemwide  configuration file.  This file provides
              defaults for those values that are not specified in
              the  user's configuration file, and for those users
              who do not have a configuration  file.   This  file
              must be world-readable.

       $HOME/.ssh/config
              This is the per-user configuration file.  The  for­
              mat  of this file is described above.  This file is
              used by the ssh client.  This file does not usually
              contain  any  sensitive information, but the recom­
              mended permissions are read/write for the user, and
              not accessible by others.

$ man sshd
       IdleTimeout time
              Sets idle timeout limit to time in  seconds  (s  or
              nothing  after  number),  in  minutes (m), in hours
              (h), in days (d), or in weeks (w).  If the  connec­
              tion  have  been  idle (all channels) for that long
              time the child process is killed with  SIGHUP,  and
              connection is closed down.

       KeepAlive
              Specifies whether the system should send  keepalive
              messages  to  the  other  side.   If they are sent,
              death of the connection or  crash  of  one  of  the
              machines  will  be properly noticed.  However, this
              means that connections will die  if  the  route  is
              down temporarily, and some people find it annoying.
	      
              On the other hand, if keepalives are not send, ses­
              sions  may hang indefinitely on the server, leaving
              "ghost" users and consuming server resources.

              The default is "yes" (to send keepalives), and  the
              server  will notice if the network goes down or the
              client host reboots.  This avoids infinitely  hang­
              ing sessions.

              To  disable  keepalives, the value should be set to
              "no" in both the server and the  client  configura­
              tion files.

       LoginGraceTime
              The  server disconnects after this time if the user
              has not successfully logged in.  If the value is 0,
              there  is  no  time  limit.   The  default  is  600

FILES
       /etc/ssh/sshd_config
              Contains configuration data for  sshd.   This  file
              should  be  writable by root only, but it is recom­
              mended (though not necessary)  that  it  be  world-
              readable.