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Thread: Proxy with Squid.conf

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  1. #1

    Proxy with Squid.conf

    Hi all,

    I have a Redhat Linux AS 2.1 server working as proxy server. I have an ADSL line to connect to the internet, my server has 2 NIC, one connected to LAN, the other connected to ADSL modem. I have configured squid.conf file for all workstations connect to internet through my server. Everything is OK. But I also want all clients behind proxy can check mail POP3 with Outlook Express integrated in Windows and extra clients can use YM, webcam. I have known that POP3 and SMTP needed to open ports 110 and 25, but I have tried, not successfully.

    Please instruct me to solve this problem.
    and send me to, thank in advance.
    Best Regards,

  2. #2
    Senior Member
    Join Date
    May 2004


    Dear namdn,

    Edit your /etc/rc.d/rc.local and place following rules.

    echo "1" > /proc/sys/net/ipv4/ip_forward

    /sbin/iptables -t nat -A PREROUTING -i eth0 -s ! -p tcp --dport 80 -j DNAT --to 8080
    /sbin/iptables -t nat -A POSTROUTING -o eth1 -s -d squid-box -j SNAT --to
    /sbin/ iptables -A FORWARD -s -d -i eth0 -o eth1 -p tcp --dport 8080 -j ACCEPT

    Note: where is your Linux Server IP Address for LAN and is your IP Pool.

    Best Regards.
    Färrükh Ähmëd

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