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Thread: Open Ports

  1. #1
    Senior Member
    Join Date
    Jun 2003

    Open Ports

    Hi All,

    How can I check which ports are open at the server fromt he client machine?

    Now is the moment, or NEVER!!!

  2. #2
    In And Above Man Black Cluster's Avatar
    Join Date
    Feb 2005
    Please explaine what you want to do? and most importantly WHY?
    \"The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts\".....Spaf
    Everytime I learn a new thing, I discover how ignorant I am.- ... Black Cluster

  3. #3
    Master-Jedi-Pimps0r & Moderator thehorse13's Avatar
    Join Date
    Dec 2002
    Washington D.C. area
    Seeing that you've been a member for a few years, I have no problem answering this question.

    I'm assuming many things since your question is vague. Simpy get your hands on a port scanner and aim it at the server. Without additional information, this is the best I can do for you.

    Good scanners include NMAP (my personal favorite) Angry IP scanner (good for non technical types) and if you're a techie, you can use HPING as a scanner.

    Of course there are many many more scanners. These are the ones that I'm very familiar with.

    Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
    Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden

  4. #4
    Yup NMAP Rocks but i have faced some problems with it some times whenever i fire namap 3.95 from a particular PC (Win XP Pro SP2) my LAN card gets hanged I mean the system wents offline from the LAN I have to reboot the PC to get it online.I think there are issues with WinPcap i checked insecure.org and found this http://seclists.org/lists/nmap-hacke...-Sep/0002.html still no answer there for my LAN card Problem :P

  5. #5
    oldie ric-o's Avatar
    Join Date
    Nov 2002
    In addition to Nmap I use SuperScan (http://www.foundstone.com/resources/...superscan4.htm ), which is a port scanner made by Foundstone. It's easy to use, runs on Windows, and free.

    Another port scanner made by Foundstone is ScanLine (http://www.foundstone.com/resources/...c/scanline.htm). It's a command line scanner that runs on Windows.

    What are you looking for or trying to achieve?

  6. #6
    Senior Member
    Join Date
    Jun 2003
    Hi All,

    I totally agree with ur concern 'Black Cluster'.

    Well, I am initiating security testing for my company and was trying to access an internal site through telnet, but was unable to do that

    I tried netstat to lookup the open ports but was able to view the open ports of my local machine only. I am working on Win XP/ Win 2000 and my server is on Unix.

    How can I view the open ports of a remote machine?

    I tried connecting to remote machine, but was getting connection to host lost.

    Can anyone help!

    Now is the moment, or NEVER!!!

  7. #7
    AO's MMA Fanatic! Computernerd22's Avatar
    Join Date
    Mar 2003
    Miami, FL
    How can I view the open ports of a remote machine?
    thehorse13, already informed you. Again, it's

    Simpy get your hands on a port scanner and aim it at the server.
    A few good ones for Windows 2000/XP is nmap (my favorite) www.insecure.org

    GFI LanGuard, and also, Retina, both from www.download.com aswell as Microsoft security basline security analyzer from http://www.microsoft.com/technet/sec.../mbsahome.mspx

    All these applications are excellent for what your trying to do cheers,

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