Hint: configuring shared screen session

[midenok]

1. create if necessary .ssh directory and .ssh/config file:

mkdir -p ~/.ssh
touch ~/.ssh/config

2. install openssh-server;

3. put your private SSH key into ~/.ssh directory;

4. change access mode for your private key:

chmod g=,o= <your_key>

5. add following section to your ~/.ssh/config:

Host yard
    HostName 89.111.176.172
    User u5709
    IdentityFile ~/.ssh/<your_key>
    IdentitiesOnly yes
    ForwardAgent no
    RemoteForward <your_port> localhost:22

6. then try to connect to host:

$ ssh yard
The authenticity of host '89.111.176.172 (89.111.176.172)' can't be established.
RSA key fingerprint is 9c:b6:a3:3c:b8:c0:cc:8d:2c:77:6f:7b:7c:02:db:e6.
Are you sure you want to continue connecting (yes/no)? yes
...
[u5709@fe126 ~]$

7. add following section to ~/.ssh/config on remote host:

Host <alias_for_your_host>
    Port <your_port>
    User <username_on_your_host>

8. now try to connect to your local host:

[u5709@fe126 ~]$ ssh <alias_for_your_host>

9. for security reasons put following into your local /etc/ssh/sshd_config:

# Disconnect after 15 minutes of inactivity
ClientAliveCountMax 15
ClientAliveInterval 60