sslh/README.md
Olliver Schinagl 397f672248
docker: Automatically build and push container
The current sslh container works fine, but needs to be created manually
and locally by the user. Instead, let the pipeline do the dirty work and
push it to this repo's own registry.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-06-05 17:09:50 +02:00

92 lines
2.0 KiB
Markdown

sslh -- A ssl/ssh multiplexer
=============================
`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, TLS/SSL (including SNI and ALPN), SSH,
OpenVPN, tinc, XMPP, SOCKS5, 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. With the SNI and ALPN probe, it makes a good
front-end to a virtual host farm hosted behind a single IP
address.
`sslh` has the bells and whistles expected from a mature
daemon: privilege and capabilities dropping, inetd support,
systemd support, transparent proxying, chroot, logging,
IPv4 and IPv6, TCP and UDP, a fork-based and a select-based
model, and more.
Install
=======
Please refer to the [install guide](doc/INSTALL.md).
Configuration
=============
Please refer to the [configuration guide](doc/config.md).
Docker image
------------
How to use
---
```bash
docker run \
--rm \
-it \
ghcr.io/yrutschle/sslh:latest \
--listen=0.0.0.0:443 \
--ssh=hostname:22 \
--tls=hostname:443
```
docker-compose example
```
version: "3"
services:
sslh:
image: sslh:latest
hostname: sslh
ports:
- 443:443
command: --listen=0.0.0.0:443 --tls=nginx:443 --openvpn=openvpn:1194
depends_on:
- nginx
- openvpn
nginx:
image: nginx
openvpn:
image: openvpn
```
Comments? Questions?
====================
You can subscribe to the `sslh` mailing list here:
<https://lists.rutschle.net/mailman/listinfo/sslh>
This mailing list should be used for discussion, feature
requests, and will be the preferred channel for announcements.
Of course, check the [FAQ](doc/FAQ.md) first!