Apache限制IP并发数和流量控制的方法

wget http://dominia.org/djao/limit/mod_limitipconn-0.24.tar.bz2
tar jxvf mod_limitipconn-0.24.tar.bz2
cd mod_limitipconn-0.24
/usr/local/apache2/bin/apxs -c -i mod_limitipconn.c

ExtendedStatus On
LoadModule limitipconn_module modules/mod_limitipconn.so
 
<ifModule mod_limitipconn.c>
<location />                       #对应根目录
   MaxConnPerIP 5                 ＃最大并发数为5
   NoIPLimit image/*                ＃对图片不做限制
</location>
<location /test>                    ＃对根目录下的test目录做限制
   MaxConnPerIP 2                  ＃最大并发数为2
</location>
</ifModule>

wget http://bwmod.sourceforge.net/files/mod_bw-0.7.tgz
tar zxvf mod_bw-0.7.tgz
cd mod_bw
/usr/local/apache2/bin/apxs -c -i mod_bw.c

LoadModule bw_module modules/mod_bw.so
 
<virtualHost *:80>
    ServerName vhost1.cszhi.com
    DocumentRoot  /var/www/vhost1
    BandwidthModule On
    ForceBandWidthModule On
    Bandwidth all 1024000
    MinBandwidth all 50000     ＃每个客户端最高速度可达50KB
    LargeFileLimit * 500 50000
    MaxConnection all 6
</virtualHost>

BandWidth localhost 0                   #对localhost不限速
BandWidth 192.168.1.5 102400            #对192.168.1.5限速为100KB
BandWidth “u:^Mozilla(.*)” 10240       #用mozilla时限速10KB
BandWidth “u:wget” 102400           ＃如果用wget下载时限速10KB
MinBandWidth all -1                   ＃保证每个客户端最高速度可达10KB
LargeFileLimit .jpg 100 10240           ＃jpg文件超过100KB，限速10KB
＃下面的510挺好，如果不设置，apache自己会报错，就根报404差不多，页面非常的丑
ErrorDocument 510 /exceed_speed.html
BandWidthError 510
MaxConnection all 10                    #所有ip最大连接数为10
MaxConnection 192.168.1.5 5             ＃192.168.1.5最大连接数为5 

[root@vps httpd]# /etc/init.d/httpd restart
Stopping httpd:                      [FAILED]
Starting httpd: httpd: Syntax error on line 203 of /etc/httpd/conf/httpd.conf: Cannot load /etc/httpd/modules/mod_bw.so into server: /etc/httpd/modules/mod_bw.so: undefined symbol: apr_atomic_cas
                              [FAILED]

#ifdef APR_MAJOR_VERSION  //添加这行
#if (APR_MAJOR_VERSION < 1)
  #define apr_atomic_inc32 apr_atomic_inc
  #define apr_atomic_dec32 apr_atomic_dec
  #define apr_atomic_add32 apr_atomic_add
  #define apr_atomic_cas32 apr_atomic_cas
  #define apr_atomic_set32 apr_atomic_set
#endif
#endif //添加这行 

rpm -qa|grep httpd
yum -y install httpd-devel