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Thread: Testing Access Method using Sockets (SSH,TELNET)

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  1. Mar 7th, 2007, 09:37 PM #1
    Tonyf84
    Tonyf84 is offline

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    Testing Access Method using Sockets (SSH,TELNET)

    I need to parse a list of IPaddresses and determin if they are using SSH (port 22) or telnet (port 23). The best way I can think to do this is by attempting to open a socket (not the full connection). If port 22 is refused it's not SSH, then try port 23. The big problem is that there are 5000 entries in this list and I can't wait for the default timeout for each socket to determine the access method. That would be a total of 10,000 connection attempts and a complete waste of the users day!

    Any help would be greatly appreciated.

    P.S. I'm using VB 2005
    Last edited by Tonyf84; Mar 12th, 2007 at 03:09 PM. Reason: Adding Language
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