SSH force usage of a specific key

By editor, 2 January, 2018

Question

How to force usage of a specific key for SSH ?

To force usage of a specific key, put in your ~/.ssh/config file :

Host [HOST_NAME]
   Hostname [HOST_NAME]
   User [USER_NAME]
   Port [PORT]
   IdentityFile ~/.ssh/[your_private_key]

Example for gitlab:
Host gitlab.company.com Hostname gitlab.company.com User git Port 10022 IdentityFile ~/.ssh/[your_private_key]

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