This is a simple tool to automatically update parts of the ssh config based on the reachability of ssh hosts. It's intended usecase is for remote connections that differ depending on which network you are on (e.g. your company/university local network or eduroam or the internet). In these cases you might always just do an ssh mymachine and don't care about how exactly to reach this machine. ssh_config_update helps you with that by checking the different ssh connections and updating your ssh config with the connection that works right now.

• create a config.yaml based on config_example.yaml that reflects your setup
• ssh_config_update is intended to overwrite one config file for each ssh target that you want to update. The config.yaml states the file for each target with the configfile variable. You need to include these files in your main ssh config ~/.ssh/config with the Include statement:

Include config.d/hnauto

# all other config goes here

• run ssh_config_update either once with ./ssh_config_update.py update or keep it running with ./ssh_config_update.py watch.
• With the --notify option you will get desktop notifications via libnotify in case of config updates