<toc><ul><li><link topicref=“2”>GNU/screen</link><ul><li><link topicref=“3”>auto-title for screen</link></li></ul></li><li><link topicref=“4”>SSH keepalive</link></li><li><link topicref=“5”>TCP keepalive</link></li></ul></toc>

<uri strref=“http://www.wlug.org.nz/Screen”/>

<strong>~/.screenrc</strong>:

startup_message off
bind ' ' windowlist -b
defscrollback 5000
defmonitor on
hardstatus alwayslastline
caption always
caption string '%-Lw%{= BW}%50>%n%f* %t%{-}%+Lw%<'
shelltitle '$ |bash'

<list><ul><li>Ctrl-A 'space' brings up the list of running windows</li><li>Ctrl-A c - create a new window</li><li>Ctrl-A ? - list of more screen commands</li><li>Ctrl-A k - kill the current window (when using screen as a serial console 'screen /dev/ttyUSB0 9600')</li></ul></list> <h2>auto-title for screen</h2> This sets the window title to the command you are currently running on localhost.

<strong>~/.bashrc</strong>:

...
PROMPT_COMMAND='echo -n -e "\033k\033\\"'

The following sets the screen title to the ssh host you have connected to.

<strong>~/.ssh/config</strong>:

Host *
    PermitLocalCommand yes
    LocalCommand tty -s && echo -ne "\ek%h\e\\"

(On every ssh connection 'LocalCommand' is run, which formats the remote hostname into the needed escape sequence for screen to set the window title).

To keep SSH sessions from timing out:

Host *
    ...
    TCPKeepAlive yes

To keep all TCP sessions from timing out:

# sysctl -w net.ipv4.tcp_keepalive_time=200
# echo net.ipv4.tcp_keepalive_time=200 >> /etc/sysctl.conf