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How SSH Port Became 22

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Re: How SSH Port Became 22

#51
Reminds me of a story about a professor. He has framed an old request for a grant and put it up in his office:

> I need 20000US$.

That's all it reads (with value converted to today's dollar-value for easier interpretation) - and of course it was granted.

Re: How SSH Port Became 22

#52

Personally I find how/why FTP uses two ports, 20 and 21, to be more interesting: So the first thing to know is the FTP is 'old', in that it predates TCP and originally ran on NCP: > The original specification for the File Transfer Protocol was written by Abhay Bhushan and published as RFC 114 on 16 April 1971. Until 1980, FTP ran on NCP, the predecessor of TCP/IP.[2] The protocol was later replaced by a TCP/IP versio…

>... was carried over for simplicity's sake. Or for simplexity's sake! From the previous discussion of SSH port 22: https://news.ycombinator.com/item?id=14178993 Back in the "bad old days" of the simplex NCP protocol, before the full duplex TCP/IP protocol legalized same-sex network connections, connect and listen sockets had gender defined by their parity, and all connections were required to use sockets with differ…

I think I complained to you when you posted this before that there is no actual addition in the code. consck is just loaded into ac3 but the code that sets it isn't there.

Re: How SSH Port Became 22

#53
post #36

Earlier quoted context omitted.

No. "Dear sir" sounds like something he picked up in high school English class, taught for use when addressing an unknown recipient. If writing this in Finnish you'd normally use something very close to "Dear Mr Reynolds".

Most of us rarely write such formal letters. I don't remember when is the last time I've written something as formal for a Finnish recipient. At school I was taught to use "Dear Sir or Madam" or "To whom it may concern" but neither of those sound natural, they're just learned. If writing for a Finn, I just start with "Hei" ("Hey") (in fact that has lead me to start emails in English with just "Hey" as well). I may ha…

"Hei" means "hi". You can use that in your email.

English "hey" is said when someone is annoyed. "Hey you! Stop that!"

Re: How SSH Port Became 22

#54
post #12

Earlier quoted context omitted.

That’s why, not how. The how is interesting.

Not really. He asked IANA, which was literally 2 guys in a room back in the 90's. Literally anyone could get a port assigned in those days, just like anyone could get a /24 address block.

>just like anyone could get a /24 address block.

FWIW pretty much anyone who can afford the relatively low fees can still get a /24 today, but sure, the process is slightly slower.

Re: How SSH Port Became 22

#55

This makes me wonder. What such booming technology is there right now where I can contribute something like this and make a mark for myself? Having born much later in the history of Internet, I think I have missed out on many of the early magical years of the Internet. But if I can get involved in some other technology that is in early stage and booming and where I have a chance to contribute something that may becom…

> Having born much later in the history of Internet, I think I have missed out on many of the early magical years of the Internet.

The Internet pioneers probably thought the same about the computer pioneers. And so on further back in time.

Re: How SSH Port Became 22

#56
post #31

So the crux of the story is “I had to email an internet icon and she mailed me back right away having done what I asked”. I can sympathize. When I worked at Sendmail I was tasked with running DNS for the company, which included Sendmail.org. The first thing I had to do was find a secondary DNS. Our founder said to “email his friend Paul”. It turned out his friend was Paul Vixie, the inventor of BIND, who responded in…

And this, fellow posters, is what humblebrag is.

Now you can tell people you were in a thread with jedberg. Mind, I've tried that one and it didn't come across well.

Re: How SSH Port Became 22

#57
post #36

Earlier quoted context omitted.

Most of us rarely write such formal letters. I don't remember when is the last time I've written something as formal for a Finnish recipient. At school I was taught to use "Dear Sir or Madam" or "To whom it may concern" but neither of those sound natural, they're just learned. If writing for a Finn, I just start with "Hei" ("Hey") (in fact that has lead me to start emails in English with just "Hey" as well). I may ha…

"Hei" means "hi". You can use that in your email. English "hey" is said when someone is annoyed. "Hey you! Stop that!"

Hmm, tone is what differentiates the greeting and the admonishment. Your 2nd sentence is correct, but not exclusively.

TL;DR I use "hey" as a greeting.

[en-gb native]

Re: How SSH Port Became 22

#58
Funnily enough, changing the ssh port to a random unprivileged one is now possibly the easiest and most effective step to harden a box... I guess it shows how the internet has changed.

Re: How SSH Port Became 22

#59
post #51

Reminds me of a story about a professor. He has framed an old request for a grant and put it up in his office: > I need 20000US$. That's all it reads (with value converted to today's dollar-value for easier interpretation) - and of course it was granted.

I'd love to get a little more context. Who applied for the grant? Where was this?

Re: How SSH Port Became 22

#60
post #31

So the crux of the story is “I had to email an internet icon and she mailed me back right away having done what I asked”. I can sympathize. When I worked at Sendmail I was tasked with running DNS for the company, which included Sendmail.org. The first thing I had to do was find a secondary DNS. Our founder said to “email his friend Paul”. It turned out his friend was Paul Vixie, the inventor of BIND, who responded in…

I remember Wired publishing an article about PGP waaay back in the day, and they included Phil Zimmermans phone number in the article, for some bizaare reason.

On a whim, after reading the article and because I was at the time involved in setting up ISP services all over SoCal, I decided to just call him and say thanks.

Imagine my surprise when he answered, confirmed it was really him, and we chatted for 20 minutes or so about the Internet, how it needed to be secured, and so on. I'll never forget his huge "meh." in response to my statement "it must be weird having your personal phone # published in a national publication" .. ;)

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