apache worker/prefork
/application/apache/bin/apachectl -l | sed -n '/worker\|prefork/p'
worker.c
Server MPM: Worker
./configure --with-mpm=worke //编译时指定，，默认是prefork
prefork 默认
使用多个子进程，每个子进程只有一个线程
效率高，稳定，安全，比worker消耗资源多
vim /application/apache/conf/extra/httpd-mpm.conf
<IfModule mpm_prefork_module>
StartServers 10 //服务启动进程数
MinSpareServers 10 //最小空闲数量
MaxSpareServers 15 //最大空闲数量
ServerLimit 2000
MaxClients 1000 //最大进程 并发
MaxRequestsPerChild 5000 //子进程处理的最大进程数 0=不限制
</IfModule>
ps -ef | grep http| grep -v grep | wc -l //查看并发连接
6
worker 线程与进程的结合
vim /application/apache/conf/extra/httpd-mpm.conf
<IfModule mpm_worker_module>
StartServers 2
MaxClients 2000 //并发的客户端连接数量
ServerLimit 25 //总进程数
MinSpareThreads 50
MaxSpareThreads 200
ThreadLimit 200
ThreadsPerChild 100 // 持续的每个服务器的工作线程数量
MaxRequestsPerChild 0 // 单个子进程累计最多处理到少个请求，默认0，不限制的意思
</IfModule>
MaxClient <= ServerLimit* ThreadsPerChild
MaxClient %ThreadsPerChild =0
cat /application/apache/conf/extra/httpd-default.conf
Timeout 300
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 5
UseCanonicalName Off
AccessFileName .htaccess
ServerTokens Full
ServerSignature On
HostnameLookups Off
并发连接数
pstree -a | grep http |grep -v grep | wc -l
110
apache web 服务防盗链
<Directory "/usr/local/apache2/htdocs/cfan/pic/">
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^http://网站域名/.*$ [NC]
RewriteRule .*\.(gif|jpg)$ http://代替图标 [R,NC]
</Directory>
Nginx防盗链的配置
location ~* \.(gif|jpg|png|swf|flv|bmp)$ {
valid_referers none blocked *.hequan.com hequan z.com;
if ($invalid_referer) {
#rewrite ^/ http://www.hequan .com/403.html;
return 403;
}
}
