A Linux speed limit script __linux

A script for downloading and uploading bandwidth limits implemented with Tc+iptables


A script for downloading and uploading bandwidth limits implemented with Tc+iptables

This is for me, New Year for you. Each IP individual limit, good at any time to modify. If you are using dial-up Internet, please add the following content to the/etc/ppp/ip-up.local, otherwise there will be no upload limit when the line is redial, it is not enough to download the BT light limit.


#!/bin/bash
#
#lvhe888 @163.com
#
# define upper and lower bandwidth
# attention is kbit
Download=800kbit
Upload=160kbit
# define intranet IP segment
inet=192.168.0.
# define the restricted IP range
Ips=1
ipe=253
# define this server IP
serverip=254
# define Access Equipment
Idev=eth0
Odev=ppp0
#
#
#
/SBIN/TC Qdisc del Dev $IDEV root handle 10:
/SBIN/TC Qdisc del Dev $ODEV root handle 20:
#
/SBIN/TC qdisc add dev $IDEV root handle 10:cbq bandwidth 100Mbit AVPKT 1000
/SBIN/TC qdisc add dev $ODEV root handle 20:cbq bandwidth 1Mbit AVPKT 1000
#
/SBIN/TC class Add dev $IDEV parent 10:0 classid 10:1 CBQ bandwidth 100Mbit rate 100Mbit Allot 1514 weight 1Mbit Prio 8 ma Xburst AVPKT 1000
/SBIN/TC class Add dev $ODEV parent 20:0 classid 20:1 CBQ bandwidth 1Mbit rate 1Mbit Allot 1514 weight 10Kbit Prio 8 Maxbu RST AVPKT 1000
#
# do not limit intranet downloads from this server.
# Note If there is a proxy on this server, the user can bypass the bandwidth limit by proxy,
# you can cancel the following three sentences to download from this server.
/SBIN/TC class Add dev $IDEV parent 10:1 classid 10:10 CBQ bandwidth 100Mbit rate 95Mbit Allot 1514 weight 20Kbit Prio 5 m Axburst AVPKT 1000 bounded
/SBIN/TC Qdisc Add dev $IDEV parent 10:10 sfq Quantum 1514b perturb 15
/SBIN/TC filter Add dev $IDEV parent 10:0 protocol IP prio u32 match ip src $INET $serverip flowid 10:10
#
#限制下载速度
Counter= $IPS
While [$COUNTER-le $IPE]
Todo
# The following three sentences limit the download bandwidth of each IP
/SBIN/TC class Add dev $IDEV parent 10:1 classid 10:1$counter CBQ bandwidth 100Mbit rate $DOWNLOAD Allot 1514 weight 20Kbi T Prio 5 maxburst avpkt 1000 bounded
/SBIN/TC Qdisc Add dev $IDEV parent 10:1$counter sfq Quantum 1514b perturb 15
/SBIN/TC filter Add dev $IDEV parent 10:0 protocol IP prio u32 match IP dst $INET $counter flowid 10:1$counter
Counter= ' expr $COUNTER + 1 '
Done
#
#限制上传速度
Counter= $IPS
While [$COUNTER-le $IPE]
Todo
# The following three sentences limit the upload bandwidth of each IP
/SBIN/TC class Add dev $ODEV parent 20:1 classid 20:1$counter CBQ bandwidth 1Mbit rate $UPLOAD Allot 1514 weight 4Kbit pri o 5 maxburst avpkt 1000 bounded
/SBIN/TC Qdisc Add dev $ODEV parent 20:1$counter sfq Quantum 1514b perturb 15
/SBIN/TC filter Add dev $ODEV parent 20:0 protocol IP prio handle $COUNTER FW classid 20:1$counter
Counter= ' expr $COUNTER + 1 '
Done
#特殊照顾的IP在以上范围的用户
nip=78
#192.168.0.78 this guy every day BT
Nd=200kbit
Nu=50kbit
/SBIN/TC class Change Dev $IDEV parent 10:1 classid 10:1$nip Bandwidth 100Mbit rate $ND Allot 1514 weight 20Kbit Prio 5 ma Xburst AVPKT 1000 bounded
/SBIN/TC class Change Dev $ODEV parent 20:1 classid 20:1$nip CBQ bandwidth 1Mbit rate $NU Allot 1514 weight 4Kbit Prio 5 m Axburst AVPKT 1000 bounded
#
Nip=1
# 192.168.0.1 increases my own bandwidth
Nd=1500kbit
Nu=500kbit
/SBIN/TC class Change Dev $IDEV parent 10:1 classid 10:1$nip Bandwidth 100Mbit rate $ND Allot 1514 weight 20Kbit Prio 5 ma Xburst AVPKT 1000 bounded
/SBIN/TC class Change Dev $ODEV parent 20:1 classid 20:1$nip CBQ bandwidth 1Mbit rate $NU Allot 1514 weight 4Kbit Prio 5 m Axburst AVPKT 1000 bounded
# ...................
#
#
# Modify the firewall, increase the upload limit
Counter= $IPS
While [$COUNTER-lt $IPE]
Todo
Iptables-t mangle-a prerouting-i $IDEV-S $INET $counter-j MARK--set-mark $COUNTER
Counter= ' expr $COUNTER + 1 '
Done
# this is Nat.
Iptables-t nat-a postrouting-o $EXTIF-S 192.168.0.0/24-j Masquerade