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Well known port numbers

Discussion in 'Networks' started by tripwire45, Aug 30, 2005.

  1. tripwire45
    Honorary Member

    tripwire45 Zettabyte Poster

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    I don't know if this is the place to put this link, but I've been using it for years and it is very handy. Ever been stuck trying to figure out which port number goes with which service? Sure, everyone knows that Telnet uses port 23, DNS uses port 53 and HTTP uses port 80...but what uses ports 13, 14149, and 27999? Wouldn't it be great to find a site that lists all of the port numbers and is easy to use, too (please don't say "iana"...they are the official site, but they drive me nuts)?

    I thought I'd share this one in the hopes that some of you will find it handy. Cheers:

    http://www.networksorcery.com/enp/protocol/ip/ports00000.htm
     
    Certifications: A+ and Network+
  2. Jakamoko
    Honorary Member

    Jakamoko On the move again ...

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    Trip, that's a cracker - thank you :)
     
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  3. AJ

    AJ Administrator Administrator

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    Nice one trip, cheers m8 :biggrin
     
    Certifications: MCSE, MCSA (messaging), ITIL Foundation v3
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  4. Rik

    Rik Nibble Poster

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    Very Very helpful link there.

    Thanks
     
  5. Steve.L

    Steve.L Byte Poster

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    Just what I was looking for

    Tks

    Steve
     
    Certifications: N+, MCP, MCTS, RHCT, VCP4 and 5, RHCSA
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  6. BosonMichael
    Highly Decorated Member Award

    BosonMichael Yottabyte Poster

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    Good stuff! Bookmarked.
     
    Certifications: CISSP, MCSE+I, MCSE: Security, MCSE: Messaging, MCDST, MCDBA, MCTS, OCP, CCNP, CCDP, CCNA Security, CCNA Voice, CNE, SCSA, Security+, Linux+, Server+, Network+, A+
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  7. UCHEEKYMONKEY
    Honorary Member

    UCHEEKYMONKEY R.I.P - gone but never forgotten. Gold Member

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    Nice one Trip:thumbleft
     
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  8. Boycie
    Honorary Member

    Boycie Senior Beer Tester

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    Nice one Trip :thumbleft

    Si
     
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  9. zebulebu

    zebulebu Terabyte Poster

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    LOL - There's me thinking: "Now when did I miss this?"

    Then I looked at the post date...

    :biggrin

    Good work Trip - I used this list a lot in the early days when I was first getting into security - especially useful to differentiate between the 'background noise' and the active scans when skimming through FW logs!
     
    Certifications: A few
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  10. Mr.Cheeks

    Mr.Cheeks 1st ever Gold Member! Gold Member

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    Zeb - when you say early days, are you referring to the 1940's?
     
  11. delorean

    delorean Megabyte Poster

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    Very useful link, thank you very much!
     
    Certifications: A+, MCP 70-270, 70-290, 70-291
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  12. garffff

    garffff New Member

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    Hi, I'm just curious about the quote of the day port, 17. I never ever come across it. Can someone shed some light on this? What it is used for and what application it may use it and why I may use it?
    cheers
     
    Certifications: HND in IT, AVCE in ICT, NVQ 2 & 3 IT
    WIP: CCNA
  13. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

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    Suggest you start a new thread for this query - more likely to get noticed and answered :)
     
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  14. shaorenri

    shaorenri New Member

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    Originally Posted by garffff
    Hi, I'm just curious about the quote of the day port, 17. I never ever come across it. Can someone shed some light on this? What it is used for and what application it may use it and why I may use it?
    cheers ”

    Suggest you start a new thread for this query - more likely to get noticed and answered
     
  15. Simonvm

    Simonvm Kilobyte Poster

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    ^^ Bit of an old question to dig up but:

    The Quote Of The Day (QOTD) service is an Internet protocol defined in RFC 865. It is intended for testing and measurement purposes.

    A host may connect to a server that supports the QOTD protocol, on either TCP or UDP port 17. The server then returns a short arbitrary message. This was traditionally a random selection from a list of notable quotes.

    The QOTD service is rarely enabled, and is in any case often firewalled to avoid 'pingpong' attacks.[1]

    Current testing and measurement of IP networks is more commonly done with ping and traceroute.

    https://secure.wikimedia.org/wikipedia/en/wiki/QOTD
     
    Last edited: Sep 16, 2010
    Certifications: MCITP: EST, MCDST, MCTS, A+, N+, CCNP, CCNA Wireless
  16. theg33kchiq

    theg33kchiq New Member

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    very helpful>! thanks much sir.!
     
    WIP: ccent.. but it will be better if i can get the ccna.. :D
  17. Haroon Mustafa

    Haroon Mustafa Byte Poster

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    Thanks

    Tbh I just wanted to be the 10,000 message in this forum category :D
     
    Certifications: Cisco IT Essens - Various College Btech Certs
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    jk2447 likes this.
  18. jk2447

    jk2447 Petabyte Poster Moderator

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    Honesty is the best policy. And I get stick for necrosis posting, this wins hands down ha ha
     
    Certifications: BSc (Hons), HND IT, HND Computing, ITIL-F, MBCS CITP, MCP (270,290,291,293,294,298,299,410,411,412) MCTS (401,620,624,652) MCSA:Security, MCSE: Security, Security+, CPTS, VCP4, CCA (XenApp6.5), MCSA 2012, VCP5, VCP6-NV
    Haroon Mustafa likes this.

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