Make ssh client to use specific private key

 

How to force use a specific private key for ssh client?

# ssh -v -i ~/.ssh/your_private_rsa  core@<IP address>

Software and its alternatives

 

Software and its alternatives available:

https://alternativeto.net/

It has reviews from users.

One good example:
https://alternativeto.net/software/youtube/

firefox relay - anonymous email id

Firefox relay: 

https://relay.firefox.com/

Avoid sharing your original email ids for subscriptions and strangers. Share relay'd email id instead.

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Another better alternative is:

https://simplelogin.io/