The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My work

  • My badges

  • Twitter Updates

    • G+ These are the command-line parameters I assembled to get close to “Ultra” compression from the 7-zip... ift.tt/2ol0NhR 1 hour ago
    • Getting close to 7zip GUI “Ultra” compression from a batch file wiert.me/2018/02/23/get… 1 hour ago
    • RT @Nick_Craver: Nothing of what I planned to do today got done. Nothing. Nothing at all. But we kept the error count under 2.5 million beh… 8 hours ago
    • RT @kellabyte: I really don’t get the harsh criticism around Intel 3D XPoint. Yes they didn’t deliver persisted RAM. They did deliver 8x… 8 hours ago
    • G+ “Some managers just don’t recognize how profound the differences between their people are; others don’t... ift.tt/2FmOJUB 9 hours ago
  • My Flickr Stream

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 1,347 other followers

ssl/ssh multiplexer

Posted by jpluimers on 2017/08/07

sslh accepts connections on specified ports, and forwards them further based on tests performed on the first data packet sent by the remote client.

Probes for HTTP, SSL, SSH, OpenVPN, tinc, XMPP are implemented, and any other protocol that can be tested using a regular expression, can be recognised. A typical use case is to allow serving several services on port 443 (e.g. to connect to ssh from inside a corporate firewall, which almost never block port 443) while still serving HTTPS on that port.

Hence sslh acts as a protocol demultiplexer, or a switchboard. Its name comes from its original function to serve SSH and HTTPS on the same port.

sslh supports IPv6, privilege dropping, transparent proxying, and more.

Interesting…

–jeroen

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

 
%d bloggers like this: