How to mount a remote folder over SSH

Say, you need to mount directory ~/mydir from comp1 to comp2.

At comp2, install sshfs package, generate an SSH key with empty passphrase, copy its public key to comp1, create local mounting point, then modify /etc/fstab to mount remote location to the mounting point using the generated key.

sudo apt install sshfs
ssh-keygen -b 2048 -t rsa -f ~/.ssh/sshfs_comp1_rsa -q -N ""
ssh-copy-id -i ~/.ssh/sshfs_comp1_rsa comp1
mkdir ~/mydir
user=$(whoami)
echo "
$user@comp1:/home/$user/mydir /home/$user/mydir sshfs allow_other,IdentityFile=/home/$user/.ssh/sshfs_comp1_rsa 0  0
" | sudo tee --append /etc/fstab
sudo mount /home/$user/mydir

Do not forget to replace comp1 with hostname or IP address of your source machine. Also, if you use different usernames on comp1 and comp2 then you will need to adjust the code even further.