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<p><FONT class=normalfont><B><font color=blue>使用mod_limitipconn.c来限制apache的并发数</font></B></FONT><BR><FONT class=smallfont color=#ff9900>2004-04-23 15:18 pm</FONT><BR><FONT class=normalfont>作者：作者<br>来自：Linux知识宝库<br>联系方式：无名<br><br> 本文介绍通过mod_limitipconn模块来限制apache的并发连接数的详细方法。<br>
<br>
下载mod_limitipconn.c<br>
http://dominia.org/djao/limit/mod_limitipconn-0.04.tar.gz<br>
http://dominia.org/djao/limit/mod_limitipconn-0.04-1.i386.rpm<br>
(proxy client detection feature not enabled) <br>
http://dominia.org/djao/limit/mod_limitipconn-0.04-1.src.rpm<br>
我用的是tar包下载的是mod_limitipconn-0.04.tar.gz,(该模块已经可以支持apache2)<br>
在服务器上执行# wget http://dominia.org/djao/limit/mod_limitipconn-0.04.tar.gz 下载到本地<br>
然后执行下面的命令编译安装.我的apache位于/usr/local/apache目录<br>
解压缩:<br>
[root@ns chenlf]# tar zxvf mod_limitipconn-0.04.tar.gz <br>
mod_limitipconn-0.04/<br>
mod_limitipconn-0.04/Makefile<br>
mod_limitipconn-0.04/README<br>
mod_limitipconn-0.04/apachesrc.diff<br>
mod_limitipconn-0.04/mod_limitipconn.c<br>
mod_limitipconn-0.04/ChangeLog<br>
编译安装:<br>
[root@ns chenlf]# cd mod_limitipconn-0.04<br>
[root@ns mod_limitipconn-0.04]# ls<br>
apachesrc.diff ChangeLog Makefile <br>
mod_limitipconn.c README<br>
[root@ns mod_limitipconn-0.04]<br>
# /usr/local/apache/bin/apxs -c -i -a mod_limitipconn.c <br>
gcc -DLINUX=22 -I/usr/include/db1 -fpic -DSHARED_MODULE -I<br>
/usr/local/apache/include -c mod_limitipconn.c<br>
gcc -shared -o mod_limitipconn.so mod_limitipconn.o <br>
[activating module `limitipconn' in /usr/local<br>
/apache/conf/httpd.conf]<br>
cp mod_limitipconn.so /usr/local/apache/libexec/mod_limitipconn.so<br>
chmod 755 /usr/local/apache/libexec/mod_limitipconn.so<br>
cp /usr/local/apache/conf/httpd.conf <br>
/usr/local/apache/conf/httpd.conf.bak<br>
cp /usr/local/apache/conf/httpd.conf.new <br>
/usr/local/apache/conf/httpd.conf<br>
rm /usr/local/apache/conf/httpd.conf.new<br>
<br>
修改配置文件:<br>
<br>
1全局控制:<br>
<br>
在httpd.conf加上以下几行:<br>
< IfModule mod_limitipconn.c ><br>
< Location / > # 所有虚拟主机的/目录 <br>
MaxConnPerIP 3 # 每IP只允许3个并发连接<br>
NoIPLimit image/* # 对图片不做IP限制<br>
< /Location ><br>
<br>
< Location /mp3 > # 所有主机的/mp3目录<br>
MaxConnPerIP 1 # 每IP只允许一个连接请求 <br>
OnlyIPLimit audio/mpeg video # 该限制只对视频和音频格式的文件<br>
< /Location ><br>
< /IfModule ><br>
<br>
2 局部限制,你也可以在虚拟主机的配置文件里设置IP限制,方法是完全一样:<br>
< VirtualHost xx.xxx.xx.xx ><br>
ServerAdmin chenlf@chinalinuxpub.com<br>
DocumentRoot /home/my<br>
ServerName www.my.com<br>
< IfModule mod_limitipconn.c ><br>
< Location / > # 所有虚拟主机的/目录 <br>
MaxConnPerIP 5 # 每IP只允许3个并发连接<br>
NoIPLimit image/* # 对图片不做IP限制<br>
< /Location ><br>
< Location /mp3 > # 所有主机的/mp3目录<br>
MaxConnPerIP 2 # 每IP只允许一个连接请求 <br>
OnlyIPLimit audio/mpeg video # 该限制只对视频和音频格式的文件<br>
< /Location ><br>
< /IfModule ><br>
ErrorLog /home/my/logs/error_log<br>
CustomLog /home/my/logs/access_log common<br>
< /VirtualHost ><br>
<br>
3 此外必须将apache的ExtendedStatus设置为ON.在httpd.conf找到<br>
# ExtendedStatus On<br>
去掉前面的注释即可<br>
好了,全部配置结束,重起apache就可以生效了<br>
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