-- Leo's gemini proxy

-- Connecting to warpengineer.space:1965...

-- Connected

-- Sending request

-- Meta line: 20 text/gemini

                                         +--+
                                         |  |
                                         |  |            +--------------------------+
+--------------------------+             |  |            |                          |
|                          |             |  |            |                          |
|                          |       +-----+--+-----+      |                          |
|                          |       |              |      |   Remote Machine (C)     |
|  Local Machine (A)       |       |              |      |                          |
|                          |       |              |      |                          |
|                          |       | Jump Server  |      |                          |
|                          |       |              |      |                          |
|                          |       |     (B)      |      |                          |
|                          |       |              |      |                          |
|                          |       |              |      |                          |
|                          |       |              |      |                          |
|                          |       |              |      +--------------------------+
+--------------------------+       |              |
                                   +-----+--+-----+
                                         |  |
                                         |  |
                                         |  |
                                         +--+

Getting to a server behind a firewall


Machine A can get to Machine B


Machine B can get to Machine C


Machine A **CAN NOT** get to Machine C directly.


Most people will use SSH to connect from Machine A to Machine B, then use SSH again to connect from Machine B to Machine C.


Another option: ProxyCommand


Add the following to SSH config


Host hostb
    User myself
    Hostname machineB

Host hostc
    User myself
    Hostname machineC
    Port 22
    ProxyCommand ssh -q -W %h:%p hostb

With this configuration, SSH can be used to connect directly from Machine A to Machine C. SSH will automatically direct the connection through Machine B.


-- Response ended

-- Page fetched on Sun May 19 10:03:02 2024