A Practical Guide to SSH Tunnels: Local and Remote Port Forwarding

Posted by signa11 4 days ago

A Practical Guide to SSH Tunnels: Local and Remote Port Forwarding(labs.iximiuz.com)

185 points | 43 commentspage 2

teddyh 7 hours ago|

It’s amazing what you can learn by reading the manual.

felooboolooomba 7 hours ago|

It is, because manuals are often not the best way to learn things. Most software manuals are reference manuals. SSH man page isn't too bad. I learned most of my SSH knowledge from it, but I'm not sure it's the best way to do it.

matltc 6 hours ago|||

For me, the best way to learn a tool is for a quick example or two showing its utility, then practicing with those, reading the man as needed on specific flags. Google or bot ”how do x" ? Repeat : done

Some pages have a nice up-front synopsis of flags, others put them in a wall of text. Browsing the former can supplant Google, /\b-x while paging is helpful for the latter.

felooboolooomba 7 hours ago||

As a sysadmin, one of your biggest ROI is learning the ins and outs of SSH.

riobard 7 hours ago||

There's a asymmetry here that "-R" works both for reverse static and dynamic (using SOCKS protocol) forwarding, but "-D" is required for dynamic forwarding which "-L" cannot do.

Why is that?

hylaride 5 hours ago||

It's historical. Some older flags could be easily extended for dynamic port support and others could not.

trollbridge 7 hours ago||

When I see one of these with obvious AI tells at the top (sentences lacking a subject or verb), I ask myself:

Can’t I just open up a harness and prompt “Teach me how to do X?”

lfx 7 hours ago||

I do this all the time, I have a skill/gem with instructions on how I want to receive info, how to format and so on. Really helps to go fast to get the point.

Oxodao 6 hours ago||

Could you share it? I'd be interested to get idea to make my own

lfx 5 hours ago||

It goes like this: --- As an expert tutorial creator for experienced engineers, you take the input the user request and make interactive tutorial. Default style is technology, tech is mac and linux. Default style is 20mins, but you ask for the timeline. Also do not forget to provide the cost of technologies used. ---

GL26 7 hours ago||

I personally do this, ask claude code to teach me about concepts I don't know about when it codes something, and only then I accept what it suggests to me

Bender 5 hours ago||

Should add how to bypass MFA using phishing and SSH Multiplexing to the article.

matltc 6 hours ago||

Very refreshing to see a utilitarian series such as this. Disappointing that the latest ai drama gets 20x more discussion and visibility on this site

ranger_danger 5 hours ago|

Another option that I never see mentioned anywhere is -w which allows you to create either layer2 or layer3 tunnels via a tun(4) interface.