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  1. #1

    Squid Proxy makes Internet connection very slow

    Hi Guys,

    I've setup Squid proxy on our network to supposedly cache the sites to make faster for users, however when someone downloads a data from the net work upstream data, it make the entire internet runs very slow, and when I checked on our bandwidth utilization from my ISP, the maxed out the upstream. This usualy happen even only 1 person is uploading data.

    (1.) Is there a way to limit such activity? limit downstream and upstream on certain cleints? or even blocks of clients, (eg. limit upsteam downstream on client with ip address with only 1Mbps bandwidth)

    (2.) Is there a way to limit port 21 (ftp) to only 100Kbps, etc.

    This has been my problem for a month now, and still finding solutions.

    Tried installing CBQ, but seems not working.

    Here's my Server Info
    OS: CentOS release 5.7 (Final)
    IPtable: iptables-1.3.5-5.3.el5_4.1
    Squid: squid-2.6.STABLE21-6.el5


  2. #2
    Linux Enthusiast scathefire's Avatar
    Join Date
    Jan 2010
    Western Kentucky
    There are several ways to do it.

    If you have the limit module in iptables: The iptables Rate-Limiting Module - PenguinSecurityWiki

    How about tc?: Traffic Shaping using tc - Server Fault

    Additional reading: Traffic Control HOWTO
    linux user # 503963

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