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How to use a shared SSH config file » History » Revision 8

Revision 7 (Irene Meisel, 04/06/2020 04:58 PM) → Revision 8/9 (Jon Goldberg, 04/30/2020 08:27 PM)

# How to use a shared SSH config file 

 Do the following: 
 * In the Nextcloud shared folder, locate the following files: `Configurations/work-ssh-config`, `Configurations/joseph-ssh-config`. 
 * Create a `config.d` folder inside your `~/.ssh` folder. 
 * Create symlinks (aliases) to those files, e.g.: 

 ```shell 
 ln -s /home/jon/ownCloud/work/Configurations/work-ssh-config ~/.ssh/config.d/20-megaphone 
 ln -s /home/jon/ownCloud/work/Configurations/joseph-ssh-config ~/.ssh/config.d/30-joseph 
 ``` 

 When you're done, running `ls -l` in the `config.d` folder should look something like this (note I have a third "personal" symlink: 

 ``` 
 zabuntu: ~/.ssh/config.d » ls -l                                                                                                                                                                                                   
 total 0 
 lrwxrwxrwx 1 jon jon 43 Oct 20    2016 10-personal -> /home/jon/ownCloud/personal/ssh/10-personal 
 lrwxrwxrwx 1 jon jon 54 May 21    2017 20-work -> /home/jon/ownCloud/work/Configurations/work-ssh-config 
 lrwxrwxrwx 1 jon jon 56 Nov 27    2017 30-joseph -> /home/jon/ownCloud/work/Configurations/joseph-ssh-config 
 ``` 

 * Add these lines anywhere in your `.bashrc` file (a hidden folder in your home directory). 

 ```shell 
 function ssh() 
 { 
     ssh-combine; /usr/bin/ssh $@ 
 } 

 function rsync() 
 { 
     ssh-combine; /usr/bin/rsync $@ 
 } 

 function scp() 
 { 
     ssh-combine; /usr/bin/scp "$@" 
 } 

 function ssh-combine() 
 { 
     cat $HOME/.ssh/config.d/* > $HOME/.ssh/config 
 } 
 ``` 

 If your username on your local machine isn't the same as your username on the remote machines, we'll also need to tell SSH to use a different default username. 
 * Create a file in `~/.ssh/config.d` called `40-global`. `10-global`.    It doesn't need to be a symlink. 
 * The entire contents of this file should be: 

 ``` 
 Host * 
   user dennis 
 ``` 
 Substitute your username for `dennis`. be a line: `user dennis` (or `user irene`). 

 Once the above setup is complete run ssh HOST and you should be connected.