I have an aside question ... Do you need to listen on both tcp and udp port 53 for DNS ? Can you just listen on the UDP one ? Does it require both ? Thank you, Peter Marshall ----- Original Message ----- From: "Fritz Mesedilla" <fritz.mesedilla@xxxxxxxxxxxxxxxxx> To: "Netfilter Mailing List (E-mail)" <netfilter@xxxxxxxxxxxxxxxxxxx> Sent: Tuesday, May 04, 2004 6:40 AM Subject: pop3 and dns Greetings! I have been looking for the answer to this through google... How do I allow POP3 through my iptables rules? I have done this... $IPTABLES -A FORWARD -p tcp --dport 53 -j ACCEPT $IPTABLES -A FORWARD -p udp --dport 53 -j ACCEPT $IPTABLES -A FORWARD -p tcp --dport 110 -j ACCEPT I included the dns forward rule to allow the internal clients to be able to resolve pop3 domain names. The problems: 1) They still can't resolve domain names. 2) POP3 can't seem to pass through going outside from the internal clients. Please advise me to what I still need to add. Thanks. Cheers, fritz <www.mesedilla.com> --- + Basta Ikaw Lord ---------------------------------------------------------------------- This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the sender immediately by e-mail and delete this e-mail from your system. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. Overture Media, Inc. Direct Line: (632) 635-4785 Trunkline: (632) 631-8971 Local 146 Fax: (632) 637-2206 Level 1 Summit Media Offices, Robinsons Galleria EDSA Cor. Ortigas Ave., Quezon City 1100
