sshssh-tunneltunneling

SSH tunnel to Database from two level of jump server with different keys

I have database server on AWS and from my PC i have to access that database using ssh tunneling for below scenario.

PC --> Jump1 [x.pem, port:22] --> Jump2 [y.pem, port:443] --> mysqldb:3306

Solution

  • For this kind of scenarios, Config File is the best way to do it.

    Run 

    $ touch ~/.ssh/config

    Add host entries in a config file.

    Host <Host_Name>
    HostName <URL/IP of Jump2>
    User <>
    Port <>
    Identityfile <yyy.pem>
    StrictHostKeyChecking no
    ProxyCommand ssh -i <xxx.pem> <user>@<IP/DNS of Jump1> nc %h %p 2> /dev/null

    and then to create a tunnel

    $ ssh <local_port>:DB_URL:<DB PORT> <Host_name>

    that's it. Now you can connect to DB using 

    localhost:<local_port>