```bash
/home/<USER>/.ssh/id_rsa
C:\User\<user>\.ssh\id_rsa
# login with private key
ssh -i key user@$IP
sudo chown kali:kali key
sudo chmod 600 key
# Windows
ssh -i key user@$IP "cmd.exe"
ssh -i key -t user@$IP "cmd.exe"
ssh -i key -t user@$IP "powershell.exe -NoLogo -NoProfile"
ssh -i key -T user@$IP "cmd.exe"
ssh -i key -T user@$IP "powershell.exe -NoLogo -NoProfile"
ssh -i key user@$IP -vvv
# ssh 단순화
ssh -i key user@$IP -o SetEnv=TERM=vt100
TERM=vt100 ssh -i key user@$IP
```