Host dev
    HostName 10.10.3.49
    Port 22
    User syigit
Host beast
    HostName 10.10.2.21
    Port 22
    User yigit
Host wins.ceng.metu.edu.tr
    Port 8083
    Preferredauthentications publickey
    IdentityFile ~/.ssh/id_ed25519
Host xyz
    Port 22
    HostName yigitsever.xyz
    User yigit
    Preferredauthentications publickey
    IdentityFile ~/.ssh/id_ed25519
    ServerAliveInterval 180

Host *.labs.overthewire.org
  SendEnv WECHALLTOKEN
  SendEnv WECHALLUSER