yum -y install httpd-devel
------------------------------- mod_bw------------------------------------
1.先下载模块
mod_bw-0.92.tgz
mkdir -p bw && wget http://ivn.cl/files/source/mod_bw-0.92.tgz
tar zxvf mod_bw-0.92.tgz
/usr/local/apache2/bin/apxs -i -c -a ./mod_bw.c
成功后，请检查httpd.conf里是否有
LoadModule bw_module modules/mod_bw.so
默认会加上
2.配置apache的主配置文件
<IfModule mod_bw.c>
BandWidthModule On
ForceBandWidthModule On
BandWidth all 512000
MinBandWidth all -1
</IfModule>
在最后加上，针对所有的IP限速0.5M。

参考：http://legacy.ivn.cl/files/txt/mod_bw-0.92.txt



----------------------- mod_mod_limitipconn-----------------------
wgethttp://dominia.org/djao/limit/mod_limitipconn-0.23.tar.bz2
tar -jvxf mod_limitipconn-0.23.tar.bz2
cd mod_limitipconn-0.23
make install
chmod -R 755 /usr/lib64/httpd/modules/mod_limitipconn.so

vim /etc/httpd/conf/httpd.conf
ExtendedStatus On
MaxConnPerIP 2


------------------------------- more-------------------------------
httpd -M
LoadModulebw_module /usr/lib64/httpd/modules/mod_bw.so
LoadModule limitipconn_module/usr/lib64/httpd/modules/mod_limitipconn.so

Example：
BandWidthModule On
ForceBandWidthModule On
BandWidth all 1024000
MinBandWidth all -1
MaxConnection all 1000
LargeFileLimit * 5120 512000
MaxConnPerIP 2

[http://ivn.cl/category/apache/]
[http://dominia.org/djao/limitipconn2.html]



###mod-cband###
wgethttp://cdnetworks-kr-1.dl.sourceforge.net/project/cband/mod-cband/mod-cband-0.9.6.1/mod-cband-0.9.6.1.tgz
tar xvfz mod-cband-0.9.6.1.tgz
cd mod-cband-0.9.6.1
./configure --with-apxs=/usr/sbin/apxs
make && make install

vim /etc/httpd/conf/httpd.conf
<VirtualHost *:80>
# ServerAdminwebmaster@dummy-host.example.com
# DocumentRoot /www/docs/dummy-host.example.com
ServerNamelocalhost
# ErrorLoglogs/dummy-host.example.com-error_log
# CustomLoglogs/dummy-host.example.com-access_log common

# 100MB virtualhost bandwidth limit
CBandLimit 100M
# Maximal 1024kbps speed for this virtualhost
# Maximal 10 requests per second for this virtualhost
# Maximal 30 open connections for this virtualhost
CBandSpeed 1024 10 30
# Maximal 10kB/s speed, 3 requests/s and 2 open connections for anyremote client
CBandRemoteSpeed 10kb/s 3 2
# a period of time after which the scoreboard will be cleared (4weeks)
CBandPeriod 4W
#Then you can access the status page with a URLlike:http://server_name/cband-status
<Location /cband-status>
SetHandlercband-status
</Location>
#Then you can access the status page with a URLlike:http://server_name/cband-status-me
<Location /cband-status-me>
SetHandlercband-status-me
</Location>
</VirtualHost>

http://21.96.10.167/cband-status