Hello!
My system is:
Internet ADSL(PPPoE) ---> ppp0 [LINUX server(router)] eth0 ---> LAN
Server(router) is running on LINUX Slackware 8.1. I have recompiled a
2.4.22 kernel, enabled all QoS support in the kernel config,
including HTB. My ADSL bandwidth is 256Kbit/s for download and
64Kbit/s for upload.
I use the following HTB+IPTABLES configuration, because I want to
reduce bandwith for all traffic, except HTTP, MAIL, ICQ, IRC, SSH and
etc.
-------------------------------------------------------------------------
#!/bin/bash
TC=/sbin/tc
IPTABLES=/usr/sbin/iptables
$TC qdisc del dev eth0 root 2> /dev/null > /dev/null
$TC qdisc del dev ppp0 root 2> /dev/null > /dev/null
$IPTABLES -F POSTROUTING -t mangle
$TC qdisc add dev eth0 root handle 1: htb default 50 r2q 2
$TC class add dev eth0 parent 1: classid 1:2 htb rate 248Kbit burst 35k
$TC class add dev eth0 parent 1:2 classid 1:10 htb rate 220Kbit ceil 240Kbit burst 25k prio 0
$TC class add dev eth0 parent 1:2 classid 1:30 htb rate 28Kbit ceil 28Kbit burst 10k prio 1
$TC qdisc add dev eth0 parent 1:10 handle 11: sfq perturb 10
$TC qdisc add dev eth0 parent 1:30 handle 33: sfq perturb 10
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -j MARK --set-mark 3
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 80 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 443 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 22 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 21 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 53 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p udp --sport 53 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 110 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 5190 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p tcp --sport 6661:6669 -j MARK --set-mark 1
$IPTABLES -t mangle -A POSTROUTING -o eth0 -s ! 192.168.0.0/24 -p icmp -j MARK --set-mark 1
$TC filter add dev eth0 parent 1:0 protocol ip handle 1 fw flowid 1:10
$TC filter add dev eth0 parent 1:0 protocol ip handle 3 fw flowid 1:30
##############################
$TC qdisc add dev ppp0 root handle 1: htb default 20
$TC class add dev ppp0 parent 1: classid 1:1 htb rate 62Kbit burst 35k
$TC class add dev ppp0 parent 1:1 classid 1:10 htb rate 40Kbit ceil 60Kbit burst 25k prio 1
$TC class add dev ppp0 parent 1:1 classid 1:20 htb rate 15Kbit ceil 55Kbit burst 10k prio 2
$TC class add dev ppp0 parent 1:1 classid 1:30 htb rate 7Kbit ceil 28Kbit burst 5k prio 3
$TC qdisc add dev ppp0 parent 1:10 handle 10: sfq perturb 10
$TC qdisc add dev ppp0 parent 1:20 handle 20: sfq perturb 10
$TC qdisc add dev ppp0 parent 1:30 handle 30: sfq perturb 10
$TC filter add dev ppp0 parent 1:0 protocol ip prio 10 u32 \
match ip tos 0x10 0xff flowid 1:10
$TC filter add dev ppp0 parent 1: protocol ip prio 10 u32 \
match ip protocol 6 0xff \
match u8 0x05 0x0f at 0 \
match u16 0x0000 0xffc0 at 2 \
match u8 0x10 0xff at 33 \
flowid 1:10
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -j MARK --set-mark 12
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -p icmp -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -p tcp --sport 22 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -p tcp --sport 80 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -p tcp --dport 80 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -p tcp --dport 21 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s ! 192.168.0.0/24 -p tcp --dport 20 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -j MARK --set-mark 13
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 80 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 443 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 53 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p udp --dport 53 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 22 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 23 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 21 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 25 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 110 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 5190 -j MARK --set-mark 11
$IPTABLES -t mangle -A POSTROUTING -o ppp0 -s 192.168.0.0/24 -p tcp --dport 6661:6669 -j MARK --set-mark 11
$TC filter add dev ppp0 parent 1:0 protocol ip handle 11 fw flowid 1:10
$TC filter add dev ppp0 parent 1:0 protocol ip handle 12 fw flowid 1:20
$TC filter add dev ppp0 parent 1:0 protocol ip handle 13 fw flowid 1:30
--------------------------------------------------------------------------
This configuration works rather well. But I decided to start a SQUID
HTTP caching transparent proxy on the same server box. I have
configured squid on the 8080 port, and I redirect all the HTTP traffic
to the SQUID proxy server:
iptables -t nat -A PREROUTING -i eth0 -d ! 192.168.0.0/24 -p tcp --dport 80 -j REDIRECT --to-port 8080
The redirection works OK, and transparent proxy does its work. But
what about HTTP downstream traffic shaping ? In my earlier configuration
(without SQUID), I just put HTB classes on my internal eth0 interface,
so I could point HTTP traffic into high rate/priority class. But if I
redirect HTTP traffic through SQUID proxy, this shaping becomes not
effective, because I can shape only outgoing traffic on each
interface. What would be your suggestions about this issue ? Perhaps
it is a bad idea to use SQUID proxy ? The most important thing for me
is to reduce the download of big files via FTP, KaZaA and etc. (all
non-priviledeged ports), and to give the WWW and other important
traffic the highest bandwith rate and priority and to speed the WWW...
I would be very grateful if you could give me suggestions how to speed
up WWW...
Rokas Zakarevicius
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