cannot telnet to port 25 from network

Discussion in 'Server Operation' started by aleksey, Sep 25, 2008.

  1. aleksey

    aleksey New Member

    Hello
    and please HELP :)
    i cannot acces the port 25 from the network, but from home it works

    if i type from the internal nerwork telnet 192.168.0.1 25 i have a response

    but if i type from the int. network telnet xyz.com 25 ... connection failed

    but if ai go home and telnet to xyz.com 25 it works


    what is the problem ?
     
  2. marpada

    marpada New Member

    Can you telnet to 25 from your internal network to another internet host?

    In case the answer is yes, probably your firewall/NAT is blocking internal request to public IP. It's an anti-spoofing mechanism. Maybe you should try to get DNS resolve xyz.com to 192.168.0.1 when locally connected.
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    Last edited: May 13, 2011

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