缓存 服务器
都是静态的 的网站
三个软件
解决方案:
1.squid 正反向代理 都可以
并发不能超过 1000
2. Varnish:16G 使用内存缓存,提高服务器性能
3. nginx:并发能力达到 30000 ,
动态:php 达到并发500 ,加缓存可以提高 ,并发能力
从某种意义上,代理服务器也是防火墙,它能实现规则,工作在应用层
Nginx:配置
作为 web 服务器来装 1.1.3版本
[root@node2 ~]# yum - y groupinstall "Development Tools" "Development Libraries"
下载软件包:
最新版本 get nginx-1.1.3.tar.gz
[root@node2 ~]# tar nginx-1.1.3.tar.gz
[root@node2 ~]# hwclock -s
[root@node2 ~]# tar xf nginx-1.1.3.tar.gz
[root@node2 ~]#yum list all
[root@node2 ~]# groupadd nginx
[root@node2 ~]# useradd -g nginx -s /bin/false -M nginx
#cd nginx-1.1.3
[root@node2 nginx-1.1.3]# yum -y install pcre-devel
./configure \
--prefix=/usr \
--sbin-path=/usr/sbin/nginx \
--conf-path=/etc/nginx/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--pid-path=/var/run/nginx/nginx.pid \
--lock-path=/var/lock/nginx.lock \
--user=nginx \
--group=nginx \
--with-http_ssl_module \
--with-http_flv_module \
--with-http_stub_status_module \
--with-http_gzip_static_module \
--http-client-body-temp-path=/var/tmp/nginx/client/ \
--http-proxy-temp-path=/var/tmp/nginx/proxy/ \
--http-fastcgi-temp-path=/var/tmp/nginx/fcgi/ \
--with-pcre
#make && make install
[root@node2 nginx-1.1.3]# cd
[root@node2 ~]# vim /etc/init.d/nginnx 一下可以复制
#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig: - 85 15
# description: Nginx is an HTTP(S) server, HTTP(S) reverse \
# proxy and IMAP/POP3 proxy server
# processname: nginx
# config: /etc/nginx/nginx.conf
# config: /etc/sysconfig/nginx
# pidfile: /var/run/nginx.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
nginx="/usr/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/etc/nginx/nginx.conf"
[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile=/var/lock/subsys/nginx
make_dirs() {
# make required directories
user=`nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
options=`$nginx -V 2>&1 | grep 'configure arguments:'`
for opt in $options; do
if [ `echo $opt | grep '.*-temp-path'` ]; then
value=`echo $opt | cut -d "=" -f 2`
if [ ! -d "$value" ]; then
# echo "creating" $value
mkdir -p $value && chown -R $user $value
fi
fi
done
}
start() {
[ -x $nginx ] || exit 5
[ -f $NGINX_CONF_FILE ] || exit 6
make_dirs
echo -n $"Starting $prog: "
daemon $nginx -c $NGINX_CONF_FILE
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog -QUIT
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
configtest || return $?
stop
sleep 1
start
}
reload() {
configtest || return $?
echo -n $"Reloading $prog: "
killproc $nginx -HUP
RETVAL=$?
echo
}
force_reload() {
restart
}
configtest() {
$nginx -t -c $NGINX_CONF_FILE
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart|configtest)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
exit 2
esac
[root@node2 ~]# chmod +x !$
root@node2 ~]# chkconfig --add nginx
[root@node2 ~]# service nginx start
/etc/init.d/nginx: line 1: nx: command not found
Starting nginx: [ OK ]
[root@node2 ~]#
然后再 浏览器上输入 主机地址
[root@node2 ~]# cd /etc/nginx/
[root@node2 nginx]# cp nginx.conf nginx.conf.bak 先把 主配置文件 复制一份
[root@node2 nginx]# vim nginx.conf
events {
worker_connections 1024; 允许多少个 用户同时登录进来 可以改大一点 5024
}
location / {
root html; 指的是网页存放位置
index index.html index.htm;
}
#cd /usr/html 查看网页内容
#vim index.html
[root@node2 nginx]# service nginx restart
[root@node2 nginx]# yum install httpd
[root@node2 nginx]# chkconfig httpd off 开机不让自动启动
[root@node2 nginx]# ab -n 1000 -c 100 http://192.168.0.188/index.html 做一下压力测试
做别名 访问:
[root@node2 nginx]# vim nginx.conf
location / {
root html; 把 html 改为 /web;
index index.html index.htm;
}
[root@node2 nginx]# mkdir /web
[root@node2 nginx]# vim /web/index.html
Suibian shuru
在 浏览器 刷新 一下
[root@node2 nginx]# vim nginx.conf
location / {
root /web;
index index.html index.htm;
}
location /bbs {
root /web;
}
[root@node2 nginx]# mkdir /bbs
[root@node2 nginx]# vim /bbs/test.html
[root@node2 nginx]# service nginx restart