一、安装wondershaper软件
由于CentOS7第三方库内才有这个软件,先安装第三方库
yum install epel-release -y
yum install wondershaper -y
将上行带宽限制为1M,下行带宽限制为10M
wondershaper eth0 1024 10240
清除原有规则 (两个参数可以是任何字符)
wondershaper clean clean
查看已有规则 (查看eth0的规则)
wondershaper eth0
参数详解
一般为3个参数,第一个参数为网卡名,第二个上行速度(出)限制,第三个参数为下行速度(入)限制。
二、不愿意下载软件或者没有下载条件的可以使用下面这种步骤,代码是wondershaper软件内的
1. 创建一个文件,并添加可执行权限
touch wondershaper && chmod +x wondershaper
2. 复制代码下方代码到刚刚创建的文件内,并放入/usr/bin目录下
vi wondershaper
mv wondershaper /usr/sbin
#!/bin/bash
function show_help {
echo "Usage: $0 [device] clean|[upload speed in Kb/s] [download speed in Kb/s]"
echo "Example: $0 eth0 20 500"
exit
}
if [ $# -eq 0 ]; then
show_help;
fi
if [ $# -eq 1 ]; then
tc -s qdisc ls dev $1
tc -s class ls dev $1
exit
fi
if [ $# -eq 2 ]; then
tc qdisc del dev $2 root 2> /dev/null > /dev/null
tc qdisc del dev $2 ingress 2> /dev/null > /dev/null
echo Wondershaper queues have been cleared.
exit
fi
if [ $# -ne 3 ]; then
show_help;
fi
DOWNLINK=$3
UPLINK=$2
DEV=$1
# low priority source netmasks
NOPRIOHOSTSRC=
# low priority destination netmasks
NOPRIOHOSTDST=
# low priority source ports
NOPRIOPORTSRC=
# low priority destination ports
NOPRIOPORTDST=
# clean existing down- and uplink qdiscs, hide errors
tc qdisc del dev $DEV root 2> /dev/null > /dev/null
tc qdisc del dev $DEV ingress 2> /dev/null > /dev/null
if [ "$1" = "stop" ]
then
exit
fi
tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 10mbit
tc class add dev $DEV parent 1: classid 1:1 cbq rate ${UPLINK}kbit \
allot 1500 prio 5 bounded isolated
tc class add dev $DEV parent 1:1 classid 1:10 cbq rate ${UPLINK}kbit \
allot 1600 prio 1 avpkt 1000
tc class add dev $DEV parent 1:1 classid 1:20 cbq rate $[9*$UPLINK/10]kbit \
allot 1600 prio 2 avpkt 1000
tc class add dev $DEV parent 1:1 classid 1:30 cbq rate $[8*$UPLINK/10]kbit \
allot 1600 prio 2 avpkt 1000
tc qdisc add dev $DEV parent 1:10 handle 10: sfq perturb 10
tc qdisc add dev $DEV parent 1:20 handle 20: sfq perturb 10
tc qdisc add dev $DEV parent 1:30 handle 30: sfq perturb 10
tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
match ip tos 0x10 0xff flowid 1:10
tc filter add dev $DEV parent 1:0 protocol ip prio 11 u32 \
match ip protocol 1 0xff flowid 1:10
tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
match ip protocol 17 0xff \
match ip sport 4666 0xffff \
flowid 1:30
tc filter add dev $DEV parent 1: protocol ip prio 12 u32 \
match ip protocol 6 0xff \
match u8 0x05 0x0f at 0 \
match u16 0x0000 0xffc0 at 2 \
flowid 1:10
for a in $NOPRIOPORTDST
do
tc filter add dev $DEV parent 1: protocol ip prio 14 u32 \
match ip dport $a 0xffff flowid 1:30
done
for a in $NOPRIOPORTSRC
do
tc filter add dev $DEV parent 1: protocol ip prio 15 u32 \
match ip sport $a 0xffff flowid 1:30
done
for a in $NOPRIOHOSTSRC
do
tc filter add dev $DEV parent 1: protocol ip prio 16 u32 \
match ip src $a flowid 1:30
done
for a in $NOPRIOHOSTDST
do
tc filter add dev $DEV parent 1: protocol ip prio 17 u32 \
match ip dst $a flowid 1:30
done
tc filter add dev $DEV parent 1: protocol ip prio 18 u32 \
match ip dst 0.0.0.0/0 flowid 1:20
tc qdisc add dev $DEV handle ffff: ingress
tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \
0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1