wok annotate sslh/description.txt @ rev 25794

created recipe for exo-lang
author Hans-G?nter Theisgen
date Wed Oct 23 16:19:52 2024 +0100 (4 weeks ago)
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pascal@19628 1 `sslh` accepts connections on specified ports, and forwards
pascal@19628 2 them further based on tests performed on the first data
pascal@19628 3 packet sent by the remote client.
pascal@19628 4
pascal@19628 5 Probes for HTTP, SSL, SSH, OpenVPN, tinc, XMPP are
pascal@19628 6 implemented, and any other protocol that can be tested using
pascal@19628 7 a regular expression, can be recognised. A typical use case
pascal@19628 8 is to allow serving several services on port 443 (e.g. to
pascal@19628 9 connect to SSH from inside a corporate firewall, which
pascal@19628 10 almost never block port 443) while still serving HTTPS on
pascal@19628 11 that port.
pascal@19628 12
pascal@19628 13 Hence `sslh` acts as a protocol demultiplexer, or a
pascal@19628 14 switchboard. Its name comes from its original function to
pascal@19628 15 serve SSH and HTTPS on the same port.