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How to reopen a blocked port?

Discussion in 'General Discussion' started by groefie, Feb 13, 2005.

  1. groefie

    groefie Active Member

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    Ok guys,

    today I've blocked a bunch of ports on our servers with the command

    iptables -A INPUT -p tcp --dport 23:24 -j DROP
    iptables -A INPUT -p tcp --dport 26:36 -j DROP

    etc...

    Too bad I've blocked port 26 (exim) and the port of spamd too. :rolleyes:

    Any idea how to reopen them? :cool:

    Thanks in advance
     
  2. dalem

    dalem Well-Known Member
    PartnerNOC

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    iptables -A INPUT -p tcp --dport 23:24 -j ACCEPT
    iptables -A INPUT -p tcp --dport 26:36 -j ACCEPT
     
  3. groefie

    groefie Active Member

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    Thanks, that works like a charm :p

    But now I'm having another problem. When sending a mail to an account on that server I get the following error:

    host superfm.be[193.151.74.85] said:
    550-astra.telenet-ops.be [195.130.132.58] is currently not permitted to
    relay 550-through this server. Perhaps you have not logged into the
    pop/imap server 550-in the last 30 minutes or do not have SMTP
    Authentication turned on in your 550 email client. (in reply to RCPT TO
    command)


    What happens and how to solve this?

    Thanks! :)
     
  4. groefie

    groefie Active Member

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    Problem solved. I just did a mailbox fix in WHM and it works fine now :D
     
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