Nginx reverse proxy and load balancing implementation process
First install nginx
. Time synchronization between nodes
[Root @ nginx ~]
# ntpdate 202.120.2.101 [root@web1 ~]# ntpdate 202.120.2.101 [root@web2 ~]# ntpdate 202.120.2.101
6. Disable firewall and SELinux
Root @ nginx ~]
# service iptables stop [root@nginx ~]# chkconfig iptables off [root@nginx ~]# getenforce Disabled [root@web1 ~]# service iptables stop [root@web1 ~]# chkconfig iptables off [root@web1 ~]# getenforce Disabled [root@web2 ~]# service iptables stop [root@web2 ~]# chkconfig iptables off [root@web2 ~]# getenforce Disabled
Install dependency packages
# Yum install gcc pcre-devel zlib-devel openssl-devel
Download nginx
# Cd/usr/local/src
# Wget http://www.nginx.org/download/nginx-1.0.9.tar.gz
# Tar zxvf nginx-1.0.9.tar.gz
# Cd nginx-1.0.9
Configuration and installation:
#. /Configure -- prefix =/usr -- sbin-path =/usr/sbin/nginx -- conf-path =/etc/nginx. conf -- error-log-path =/var/log/nginx/error. log -- pid-path =/var/run/nginx. pid -- lock-path =/var/lock/nginx. lock -- user = nginx -- group = nginx -- with-http_ssl_module -- with-http_flv_module -- with-http_gzip_static_module -- http-log-path =/var/log/nginx/access. log -- 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/
# Make
# Make install
2. Create nginx users and groups
Provide SysV init script for nginx
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[root@nginx ~]# cat /etc/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. [ "$NETWORKING" = "no" ] && exit 0 nginx="/usr/sbin/nginx" prog=$(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 |