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A visual guide to SSH tunnels

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Re: A visual guide to SSH tunnels

#81

Post by 64738 » Mon, Feb 15, 2021, 5:54 AM UTC

opsdisk wrote: post #63

magicconch wrote: post #24

For those interested in the topic of tunneling, I highly recommend The Cyber Plumber’s Handbook [1] to gain an even deeper understanding and examples beyond SSH. [1] https://cph.opsdisk.com/

Appreciate the shout out magicconch! Just added a HN family discount to pick up the book, lab guide, and lab access for $10. https://gum.co/cph_book_and_lab/hackernews20210207

Very cool, I was unaware of this product. Thanks for the deal! :D

Re: A visual guide to SSH tunnels

#82

Post by 0x0 » Wed, Feb 17, 2021, 3:27 PM UTC

efreak wrote: post #73

0x0 wrote: post #22

Earlier quoted context omitted.

Stunnel and ssh tunnels don't put TCP inside TCP so it shouldn't risk any TCP-in-TCP congestion issues?

SSH is a TCP connecting though, isn't it? How do you avoid TCP inside TCP when both are TCP? Oram I missing something?

It just relays the packet payload (i.e the actual data bytes inside the TCP stream are read out from the source, then sent along to the destination inside a different TCP stream. TCP/IP headers aren't included or replayed).

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