English German

Memory Bank

Some stuff that's seldom used, but wise to remember.

Using OpenSSL to test STARTTLS connections

  • openssl s_client -connect server.example.com:25 -starttls smtp

 

Reaching ssh host behind another without agent forwarding

  • ~/.ssh/config:
    Host <name>
     Hostname <unreachable ip>
     <other options> 
     ProxyCommand ssh -q -W %h:%p <name_of_reachable_host>