SSH Port විසි දෙකෙ (22) කතාව

SLHodahitha

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    "මම SSH (Secure Shell) හි මුල් පිටපත ලියා ඇත්තේ 1995 වසන්තයේ දී ය. එය telnet සහ FTP බහුලව භාවිතා වූ කාලයකි. කෙසේ වෙතත්, මම telnet (port 23) සහ ftp (port 21) යන දෙකම ප්‍රතිස්ථාපනය කිරීමට SSH නිර්මාණය කළෙමි. - Tatu Ylonen"

    I wrote the initial version of SSH (Secure Shell) in Spring 1995. It was a time when telnet and FTP were widely used.
    Anyway, I designed SSH to replace both telnet (port 23) and ftp (port 21). Port 22 was free. It was conveniently between the ports for telnet and ftp. I figured having that port number might be one of those small things that would give some aura of credibility. But how could I get that port number? I had never allocated one, but I knew somebody who had allocated a port.
    The basic process for port allocation was fairly simple at that time. Internet was smaller and we were in the very early stages of the Internet boom. Port numbers were allocated by IANA (Internet Assigned Numbers Authority). At the time, that meant an esteemed Internet pioneer called Jon Postel and Joyce K. Reynolds. Among other things, Jon had been the editor of such minor protocol standards as IP (RFC 791), ICMP (RFC 792), and TCP (RFC 793). Some of you may have heard of them.
    To me Jon felt outright scary, having authored all the main Internet RFCs!
    Anyway, just before announcing ssh-1.0 in July 1995, I sent this e-mail to IANA:

    From ylo Mon Jul 10 11:45:48 +0300 1995 From: Tatu Ylonen <[email protected]>

    To: Internet Assigned Numbers Authority <[email protected]>
    Subject: request for port number
    Organization: Helsinki University of Technology, Finland
    Dear Sir, I have written a program to securely log from one machine into another over an
    insecure network. It provides major improvements in security and functionality over existing
    telnet and rlogin protocols and implementations. In particular, it prevents IP, DNS and
    outing spoofing. My plan is to distribute the software freely on the Internet and to get it
    into as wide use as possible. I would like to get a registered privileged port number for
    the software.

    The number should preferably be in the range 1-255 so that it can be used in the WKS field
    in name servers. I'll enclose the draft RFC for the protocol below. The software has been in
    local use for several months, and is ready for publication except for the port number. If
    the port number assignment can be arranged in time, I'd like to publish the software already
    this week. I am currently using port number 22 in the beta test.

    It would be great if this number could be used (it is currently shown as Unassigned in the
    lists). The service name for the software is "ssh" (for Secure Shell).

    Yours sincerely, Tatu Ylonen <[email protected]> ... followed by protocol specification
    for ssh-1.0


    The next day, I had an e-mail from Joyce waiting in my mailbox:

    Date: Mon, 10 Jul 1995 15:35:33 -0700 From: [email protected] To: [email protected] Subject:
    Re: request for port number Cc: [email protected]
    Tatu, We have assigned port number 22 to ssh, with you as the point of contact. Joyce
    There we were! SSH port was 22!!!


    On July 12, 1995, at 2:32am, I announced a final beta version to my beta testers at Helsinki University of Technology.
    At 5:23pm I announced ssh-1.0.0 packages to my beta testers.
    At 5:51pm on July 12, 1995, I sent an announcement about SSH (Secure Shell) to the [email protected] mailing list. I also posted it to a few newsgroups, mailing lists, and directly to selected people who had discussed related topics on the Internet.

    iu
     

    tharakaf

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    Umbalata hitenne nadda e kaaley jeewath unanam kochara lesiyata apita aluth dewal hoyala dial wenna tibbada kiyala :-D

    PS: Dan ewa easy wage penne tech diyunuwa nisa. E kaaley un api mey kaaley deyak hoyanna giya ha samana kattak kanna athi.
     

    SLHodahitha

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    Umbalata hitenne nadda e kaaley jeewath unanam kochara lesiyata apita aluth dewal hoyala dial wenna tibbada kiyala :-D

    PS: Dan ewa easy wage penne tech diyunuwa nisa. E kaaley un api mey kaaley deyak hoyanna giya ha samana kattak kanna athi.
    Ow ban, echchara dura yanna ona na 10 yrs walata kalin bitcoins (0.07$ USD) 100k athe tiyagattanam ada :D

    imgbit.png
     
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    tharakaf

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    Ow ban, echchara dura yanna ona na 10 yrs walata kalin bitcoins 100k athe tiyagattanam ada :D

    View attachment 224477
    Uni ekey ekek hitiya e kaaley bitcoin gana kiyawana. mama kiyanne 2008/9 kaaley. Mama hitanne u e kaaley gannath athi. Apita owa itin japan wage e kaaley. Dan okata koti gaanak athi samahara wita wikke naththan. Mathakai dial eka ee kaleyma mining karanna wenama machine ekakuth gaththa.

    Mata teruna dey tama issara apita tibba lokuma limitation eka technology ekata access nathi nisa. main reason salli nathi kama (technolgoy patta ganna). Elama kathawa, mama Uni pass out wenakotawath 2011/12 mata lapak tibbe ne. Ganna salli tibbe ne :-D