Managing two ssh keys

Question

Suppose, I have two pc and in each pc I have a .ssh folder and in each folder I have three files id_rsa, id_rsa.pub and known_hosts.

Now I want to use both ssh keys in one pc.
How can I do that?
How can I manage both ssh keys in one pc? I am on linux mint.

Answer 1

Create a SSH config file

When you have multiple identity files, create a SSH config file mechanisms to create aliases for your various identities.

You can construct a SSH config file using many parameters and different approaches.

The format for the alias entries use in this example is:

Host alias 
  HostName bitbucket.org 
  IdentityFile ~/.ssh/identity

To create a config file for two identities (workid and personalid), you would do the following:

Open a terminal window.
Edit the ~/.ssh/config file. 

If you don't have a config file, create one.
Add an alias for each identity combination for example:

Host workid
HostName bitbucket.org
IdentityFile ~/.ssh/workid

Host personalid
HostName bitbucket.org
IdentityFile ~/.ssh/personalid

PS

Don't forget to load the keys to your github account.

How to add ssh key to github account?

• Login to github account
• Click on the rancher on the top right (Settings)
  
• Click on the SSH keys
  
• Click on the Add ssh key
  
• Paste your key and save

And you all set to go :-)