SSH into iPhone using private key

1. in Client shell

# Generate rsa key
ssh-keygen -b 2048
#or using
ssh-keygen -t rsa

# Copy public key to iPhone
scp ~/.ssh/id_rsa.pub root@iphone:~/.ssh/id_rsa.pub

2. in iPhone shell

# Add client public key to authorized_keys
cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

3. in Client shell

# Test it out
ssh -i ~/.ssh/id_rsa root@iphone
# Then try it without `-i` option
ssh root@iphone

Troubleshooting

• If ssh agent failed, try to delete cached ssh key using ssh-add -D.

directory or file	permission
/home	755
~/.ssh/*	600
~/.ssh	700