define ~/.ssh/config file with the following contents:

nano ~/.ssh/config

Host mars
    User admin
    Port 1234
    IdentityFile ~/.ssh/id_rsa

mars is identical name which we use in terminal for example :

ssh mars


Jobair Alam Bipul and I’m a 31-year-old tech enthusiast from Bangladesh. have been working in the E-commerce, Domain and Web Hosting industry for more than 10 years

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