SSH

Generate ssh key / identity

ssh-keygen -t ed25519 -C "[email protected]" -f id_ed25519_serge`

SSH-Agent (optional)

List all identities

ssh-add.exe -l

Delete all identities

ssh-add.exe -D

Add a identity

ssh-add.exe   .\id_ed25519_serge

Setup ssh config

Choose ssh identity file for a host

vi ~/.ssh/config

Host github.com    HostName github.com    User git    IdentityFile ~/.ssh/id_ed25519_serge    IdentitiesOnly yes 

Verify identity

ssh -vT   [email protected]      ...Hi jdedev! You've successfully authenticated, but GitHub does not provide   shell access....

delete known_hosts entry line

delete line # 6

sed -i '6d' ~/.ssh/known_hosts

SSH Key Management

Generate SSH Key

ssh-keygen -t ed25519 -C "[email protected]" -f id_ed25519_serge

SSH Agent

• List all identities

  ssh-add -l
  

• Delete all identities

  ssh-add -D
  

• Add an identity

  ssh-add ~/.ssh/id_ed25519_serge
  

SSH Config

Edit ~/.ssh/config to specify identity for a host:

Host github.com
HostName github.com
User gitIdentityFile ~/.ssh/id_ed25519_serge
IdentitiesOnly yes

Verify SSH Identity

ssh -vT [email protected]
# ...
# Hi jdedev! You've successfully authenticated, but GitHub does not provide shell access.
# ...

Remove a known_hosts Entry

Delete line #6 from known_hosts:

sed -i '6d' ~/.ssh/known_hosts