南宁网站开发招聘,小型微利企业所得税优惠政策,北京网站建设外包公司,两个网站合并建设实施方案写在前面#xff1a;如果此文有幸被某位朋友看见并发现有错的地方#xff0c;希望批评指正。如有不明白的地方#xff0c;愿可一起探讨。案例拓扑图安装keepalived和nginx安装keepalived# yum -y install keepalived创建nginx用户组及nginx用户# groupadd -r nginx
# userad… 写在前面如果此文有幸被某位朋友看见并发现有错的地方希望批评指正。如有不明白的地方愿可一起探讨。案例拓扑图安装keepalived和nginx安装keepalived# yum -y install keepalived创建nginx用户组及nginx用户# groupadd -r nginx
# useradd -g nginx -r nginx编译安装nginx-1.4.7# tar xf nginx-1.4.7.tar.gz
# cd nginx-1.4.7
# ./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 \--usernginx \--groupnginx \--with-http_ssl_module \--with-http_flv_module \--with-http_stub_status_module \--with-http_gzip_static_module \--http-client-body-temp-path/usr/local/nginx/client/ \--http-proxy-temp-path/usr/local/nginx/proxy/ \--http-fastcgi-temp-path/usr/local/nginx/fcgi/ \--http-uwsgi-temp-path/usr/local/nginx/uwsgi \--http-scgi-temp-path/usr/local/nginx/scgi \--with-pcre
# make make install检查配置文件是否有语法错误[rootlocalhost nginx-1.4.7]# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: [emerg] mkdir() /usr/local/nginx/client/ failed (2: No such file or directory)
nginx: configuration file /etc/nginx/nginx.conf test failed修改错误# mkdir /usr/local/nginx再次检查配置文件是否有语法错误[rootlocalhost nginx-1.4.7]# nginx -t为nginx提供SysV init脚本# vim /etc/rc.d/init.d/nginx#!/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.
[ $NETWORKING no ] exit 0nginx/usr/sbin/nginx
prog$(basename $nginx)NGINX_CONF_FILE/etc/nginx/nginx.conf[ -f /etc/sysconfig/nginx ] . /etc/sysconfig/nginxlockfile/var/lock/subsys/nginxmake_dirs() {# make required directoriesusernginx -V 21 | grep configure arguments: | sed s/[^*]*--user\([^ ]*\).*/\1/g -options$nginx -V 21 | grep configure arguments:for opt in $options; doif [ echo $opt | grep .*-temp-path ]; thenvalueecho $opt | cut -d -f 2if [ ! -d $value ]; then# echo creating $valuemkdir -p $value chown -R $user $valuefifidone
}start() {[ -x $nginx ] || exit 5[ -f $NGINX_CONF_FILE ] || exit 6make_dirsecho -n $Starting $prog: daemon $nginx -c $NGINX_CONF_FILEretval$?echo[ $retval -eq 0 ] touch $lockfilereturn $retval
}stop() {echo -n $Stopping $prog: killproc $prog -QUITretval$?echo[ $retval -eq 0 ] rm -f $lockfilereturn $retval
}restart() {configtest || return $?stopsleep 1start
}reload() {configtest || return $?echo -n $Reloading $prog: killproc $nginx -HUPRETVAL$?echo
}force_reload() {restart
}configtest() {$nginx -t -c $NGINX_CONF_FILE
}rh_status() {status $prog
}rh_status_q() {rh_status /dev/null 21
}case $1 instart)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赋予nginx脚本执行权限# chmod x /etc/rc.d/init.d/nginx添加至服务管理列表并让其开机自动启动# chkconfig --add nginx
# chkconfig nginx on提示在两个keepalivednginx主机上都需安装keepalkved和nginx服务配置nginx为反向代理服务器编辑nginx.conf配置文件# cd /etc/nginx/
# vim nginx.conf在nginx.conf配置文件中的http段内添加如下内容upstream webservers {server 10.170.2.101;server 10.170.2.102;
}
server {listen 80;server_name www.muluhe.com;location / {proxy_pass http://webservers;proxy_set_header X-Real-IP $remote_addr;}
}提示在两台keepalivednginx主机的nginx.conf的配置文件所添加的内容一样配置keepalived编辑keepalived.conf配置文件# cd /etc/keepalived/
# vim keepalived.confIP地址为10.170.2.60的配置文件内容为! Configuration File for keepalived
global_defs {notification_email {acassenfirewall.locfailoverfirewall.locsysadminfirewall.loc}notification_email_from Alexandre.Cassenfirewall.locsmtp_server 192.168.200.1smtp_connect_timeout 30router_id LVS_DEVEL
}
vrrp_instance VI_1 {state MASTERinterface eth0virtual_router_id 15priority 100advert_int 1authentication {auth_type PASSauth_pass 111111}virtual_ipaddress {10.170.2.100}notify_master /etc/init.d/nginx startnotify_backup /etc/init.d/nginx stopnotify_fault /etc/init.d/nginx stop
}IP地址为10.170.2.61的配置文件内容为! Configuration File for keepalived
global_defs {notification_email {acassenfirewall.locfailoverfirewall.locsysadminfirewall.loc}notification_email_from Alexandre.Cassenfirewall.locsmtp_server 192.168.200.1smtp_connect_timeout 30router_id LVS_DEVEL
}
vrrp_instance VI_1 {state BACKUPinterface eth0virtual_router_id 15priority 99advert_int 1authentication {auth_type PASSauth_pass 111111}virtual_ipaddress {10.170.2.100}notify_master /etc/init.d/nginx startnotify_backup /etc/init.d/nginx stopnotify_fault /etc/init.d/nginx stop
}配置web1和web2服务器编辑web1测试页面# vim /var/www/html/index.html
内容为h1www1.muluhe.com/h1启动httpd服务# /etc/init.d/httpd start编辑web2测试页面# vim /var/www/html/index.html
内容为h1www2.muluhe.com/h1启动httpd服务# /etc/init.d/httpd start启动keepalived服务并进行测试启动keepalivednginx两台主机的keepalived服务# /etc/init.d/keepalived start在浏览器中键入10.170.2.100刷新几下可得到如下结果关闭IP地址为10.170.2.60那台主机的keepalived服务# /etc/init.d/keepalived stop再次在浏览器中键入10.170.2.100刷新几下查看结果如下由以上结果可以keepalived实现了nginx反向代理的高可用以及nginx实现了web的负载均衡效果。 转载于:https://blog.51cto.com/muluhe/1555180
