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Ports 993,995 are really necesary ?

Discussion in 'General Discussion' started by sh4ka, Mar 11, 2006.

  1. sh4ka

    sh4ka Well-Known Member

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    If i need to check by webmail and/or outlook using pop3 or imap, do I need this ports open 993,995 ? or can I close them safety by the firewall rules ?

    thkz!
     
  2. dave9000

    dave9000 Well-Known Member

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    they are only necessary if you use SSL to check your e-mail
     
  3. sh4ka

    sh4ka Well-Known Member

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    I really don't know if my clients are using ssl, but I think they don't...
    Then should close or not close those ports? Do you use them in your servers?

    thkz!
     
  4. AndyReed

    AndyReed Well-Known Member
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    Port 993: IMAP4 over SSL
    Port 995: POP3 over SSL
    There is no need to close or block these ports. To learn more about ports and their functions, go to: http://www.iss.net/security_center/advice/Exploits/Ports/
     
  5. chirpy

    chirpy Well-Known Member

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    If you know they're not being used then you should indeed block those ports in your iptables firewall, unless you've removed it for some reason! The fewer open ports you have both incoming and outgoing to your server helps limit your exposure to both external and internal risks.
     
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