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Common TCP/IP Port Numbers

Discussion in 'Network+' started by Arroryn, Mar 6, 2007.

  1. Arroryn
    Honorary Member

    Arroryn we're all dooooooomed

    4,009
    186
    209
    Thought this would be useful for all bods trying to remember these for the N+ exam.

    http://www.answersthatwork.com/Download_Area/ATW_Library/Networking/Network__2-Common_TCPIP_port_numbers.pdf
     
    Certifications: A+, N+, MCDST, 70-410, 70-411
    WIP: Modern Languages BA
  2. Malnomates

    Malnomates Megabyte Poster

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    Nice link Arroryn.

    Take it from me, you WILL need to know your port numbers and the service that runs on each port, no two ways about it. CompTIA expect you to know them and will throw questions at you that relate the ports listed in the N+ objectives.
     
    Certifications: A+ Network+
  3. hoss6800

    hoss6800 Bit Poster

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    Hi,
    The link is not working and this is one of my nightmares. I have always had problem with port numbers. Could anyone give me a tip and advice on how to remember them. I will be greatefull if anyone could help.
    Thanks
    hoss
     
    Certifications: N+
    WIP: CCNA
  4. wagnerk
    Highly Decorated Member Award

    wagnerk aka kitkatninja Moderator

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    Yep, tried the link and still not working, anyway another common port is 666 for Doom, but I don't think that'll be in the Comptia Exam (unless they're doing a Games+ cert) :)

    -Ken
     
    Certifications: CITP, PGCert, BSc, HNC, LCGI, PTLLS, MCT, MCITP, MCTS, MCSE, MCSA:M, MCSA, MCDST, MCP, MTA, MCAS, MOS (Master), A+, N+, S+, ACA, VCA, etc... & 2nd Degree Black Belt
    WIP: PGDip
  5. wagnerk
    Highly Decorated Member Award

    wagnerk aka kitkatninja Moderator

    10,831
    357
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    Certifications: CITP, PGCert, BSc, HNC, LCGI, PTLLS, MCT, MCITP, MCTS, MCSE, MCSA:M, MCSA, MCDST, MCP, MTA, MCAS, MOS (Master), A+, N+, S+, ACA, VCA, etc... & 2nd Degree Black Belt
    WIP: PGDip
  6. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    The link is slightly different now. Try this.

    Harry.
     
    Certifications: ECDL A+ Network+ i-Net+
    WIP: Server+
  7. zebulebu

    zebulebu Terabyte Poster

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    If thats the case, then why, when I was interviewing for second line staff a month ago did I see five people (one of whom we eventually hired) who couldn't get more than 25% out of the following:

    PORT

    80
    21
    23
    443
    137
    5900
    1434
    25

    All of them had the N+ cert too...

    :mad
     
    Certifications: A few
    WIP: None - f*** 'em
  8. hoss6800

    hoss6800 Bit Poster

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    Thanks for the link guys. By the way what the port 5900 is for, i couldn't find it in the well-known ports list.

    Thanks
     
    Certifications: N+
    WIP: CCNA
  9. BosonMichael
    Highly Decorated Member Award

    BosonMichael Yottabyte Poster

    19,136
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    I didn't know 5900 and 1434 myself...
     
    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+
    WIP: Just about everything!
  10. nXPLOSi

    nXPLOSi Terabyte Poster

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    Great Link there Harry, thanks for that mate, will be useful for me in the future :)
     
    Certifications: A+, Network+, Security+, MCSA 2003 (270, 290, 291), MCTS (640, 642), MCSA 2008
    WIP: MCSA 2012
  11. Mitzs
    Honorary Member

    Mitzs Ducktape Goddess

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    http://www.portdetective.com/portinfo.html
     
    Certifications: Microcomputers and network specialist.
    WIP: Adobe DW, PS
  12. Mitzs
    Honorary Member

    Mitzs Ducktape Goddess

    3,282
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    http://msdn2.microsoft.com/en-us/library/ms165724.aspx

    I thought this was interesting too.

    http://www.linklogger.com/UDP1434.htm
     
    Certifications: Microcomputers and network specialist.
    WIP: Adobe DW, PS
  13. Malnomates

    Malnomates Megabyte Poster

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    5900 and 1434 are not the common ports ecpected to be known for the N+ 2005 objectives exam. All of the others are. It is the case because it is an objective to know them, though I can't vouch as to why 5 N+ qualified individuals would know only 1 or 2 of them.
     
    Certifications: A+ Network+
  14. hoss6800

    hoss6800 Bit Poster

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    Thank you very much Mitzs for the info and links.
    I was wondering if anyone knows a easy way to remember all these numbers. I know i have to memrise them anyway, but some advise will be very helpful.

    Thanks
     
    Certifications: N+
    WIP: CCNA
  15. BosonMichael
    Highly Decorated Member Award

    BosonMichael Yottabyte Poster

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    There's no easy way other than using them every day and memorizing them through use. After using them for a long time, it's second nature to know that HTTP is on port 80, FTP is on port 21, and SMTP is on port 25.
     
    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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  16. csx

    csx Megabyte Poster

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    PPTP (VPN) uses 1723, which i have to use daily. :)

    Also don't forget 3389 is RDP
     
    Certifications: A+, Network+, 70-271 & 70-272, CCENT, VCP5-DCV and CCNA
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