yum -y install pcre-devel
 
yum -y install openssl-devel
 
yum -y install gcc
 
yum -y install lrzsz
 
yum -y install openssh-clients

1、进入解压后的目录，指定安装路径，
 
注：不指定prefix,则可执行文件默认放在/usr /local/bin,库文件默认放在/usr/local/lib,配置文件默认放在/usr/local/etc
 
cd /usr/local/nginx
 
./configure --prefix=/usr/local/nginx --conf-path=/usr/local/nginx/nginx.conf
 
2、编译：
 
make
 
3、安装：
 
make install
 
4、启动
 
/usr/local/nginx/sbin/nginx 
 
5、查看
 
http://192.168.xx.xxx 
 
出现：welcome Nginx，就安装ok了。
 
6、停止
 
/usr/local/nginx/sbin/nginx –s stop

1、su - root 用户
 
2、进入usr目录
 
cd /usr
 
3、在usr目录下建立java安装目录
 
mkdir –m 755 java
 
4、将jdk-6u24-linux-i586.bin拷贝到java目录下
 
rz -y
 
4、安装jdk
 
cd /usr/java
 
chmod 755 jdk-6u24-linux-i586.bin
 
./jdk-6u24-linux-i586.bin‘
 
注意：如果出现/lib/ld-linux.so.2: bad ELF interpreter:No such file or directory，安装下glic即可： yum install glibc.i686
 
5、安装完毕为他建立一个链接以节省目录长度
 
ln -s /usr/java/jdk1.6.0_24//usr/jdk
 
6、配置环境变量
 
vim /etc/profile
 
添加内容：
 
vi /etc/profile
 
export JAVA_HOME=/usr/jdk
 
export PATH=$PATH:$JAVA_HOME/bin
 
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
 
export JAVA_HOME PATH CLASSPATH
 
7、执行下命令（source命令也称为“点命令”，也就是一个点符号（.）。source命令通常用于重新执行刚修改的初始化文件，使之立即生效，而不必注销并重新登录。）
 
source /etc/profile

1、上传、解压：
 
rz -y
 
tar -zxvf apache-tomcat-6.0.37.tar.gz
 
2、重命名：
 
mv apache-tomcat-6.0.37 tomcat

1、cd /usr/local/nginx  
 
2、vi /usr/local/nginx/nginx.conf

user  nobody nobody;#定义Nginx运行的用户和用户组
 
worker_processes  4;#nginx进程数，建议设置为等于CPU总核心数。
 
error_log  logs/error.log	info;#全局错误日志定义类型，[ debug | info | notice | warn | error | crit ]
 
worker_rlimit_nofile 1024;#一个nginx进程打开的最多文件描述符数目，所以建议与ulimit -n的值保持一致。
 
pid	logs/nginx.pid;#进程文件
 
 
#工作模式及连接数上限
 
events {
 
use epoll;#参考事件模型，use [ kqueue | rtsig | epoll |/dev/poll | select | poll ]; epoll模型是Linux2.6以上版本内核中的高性能网络I/O模型
 
    worker_connections  1024;#单个进程最大连接数（最大连接数=连接数*进程数）
 
}
 
 
#设定http服务器，利用它的反向代理功能提供负载均衡支持
 
http {
 
    include       mime.types;#文件扩展名与文件类型映射表
 
    default_type  application/octet-stream;#默认文件类型
 
#设定负载均衡的服务器列表
 
upstream  tomcatxxxcom  {
 
     server   192.168.56.200:8080;
 
     server   192.168.56.201:8080;
 
}
 
#设定日志格式
 
    log_format  www_xy_com  ‘$remote_addr - $remote_user [$time_local] "$request" ‘
 
‘$status $body_bytes_sent "$http_referer" ‘
 
‘"$http_user_agent" "$http_x_forwarded_for"‘;
 
 
    sendfile        on;#开启高效文件传输模式，sendfile指令指定nginx是否调用sendfile函数来输出文件，对于普通应用设为 on，如果用来进行下载等应用磁盘IO重负载应用，可设置为off，以平衡磁盘与网络I/O处理速度，降低系统的负载。注意：如果图片显示不正常把这个改成off。
 
    keepalive_timeout  65;#长连接超时时间，单位是秒
 
 
#gzip  on;
 
#设定虚拟主机，默认为监听80端口
 
    server {
 
        listen       80;
 
        server_name  tomcat.xxx.com;#域名可以有多个，用空格隔开
 
 
#charset koi8-r;
 
#设定本虚拟主机的访问日志
 
        access_log  /data/logs/access.log  www_xy_com;
 
#对 "/" 启用反向代理 
 
   location /{
 
   proxy_pass        http://tomcatxxxcom;
 
               proxy_set_header   Host             $host;
 
               proxy_set_header   X-Real-IP        $remote_addr;
 
               proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
 
}
 
 
#error_page   500 502 503 504  /50x.html;
 
        location =/50x.html {
 
            root   html;
 
}
 
}
 
}

cd /
 
mkdir –m 755 data
 
cd data
 
mkdir –m 755 logs

/usr/local/tomcat/bin/startup.sh
 
/usr/local/nginx/sbin/nginx
 

worker_processes  1;
error_log  logs/error.log  info;
pid        logs/nginx.pid;
 
events {
    use epoll;
    worker_connections  1024;
}
 
http {
    include       mime.types;
    default_type  application/octet-stream;
# 配置需要代理的服务器列表
    upstream servers {
       server v3:8080;
       server v4:8080;
}
 
    log_format  main  ‘$remote_addr - $remote_user [$time_local] "$request" ‘
‘$status $body_bytes_sent "$http_referer" ‘
‘"$http_user_agent" "$http_x_forwarded_for"‘;
 
    access_log  logs/access.log  main;
 
    sendfile        on;
 
    keepalive_timeout  65;
 
    server {
        listen       80;
        server_name  localhost;
 
        access_log  logs/host.access.log  main;
 
        location /{
#引用上面的配置
            proxy_pass http://servers;
            proxy_set_header Host $host;
            proxy_set_header X-Real_IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            root   html;
            index  index.html index.htm;
}
 
        error_page   500502503504/50x.html;
        location =/50x.html {
            root   html;
}
}
 
}

!ConfigurationFilefor keepalived
 
global_defs {
}
 
vrrp_script chk_nginx {
        script "killall -0 nginx"
        interval 1
        weight -2
}
 
vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 1
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
}
 
    track_script {
        chk_nginx
}
 
    virtual_ipaddress {
192.168.33.181/24
}
 
    notify_master "/etc/keepalived/notify.sh master"
    notify_backup "/etc/keepalived/notify.sh backup"
    notify_fault "/etc/keepalived/notify.sh fault"
}
 
vrrp_instance VI_2 {
    state BACKUP 
    interface eth0
    virtual_router_id 2
    priority 98
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
}
 
    track_script {
        chk_nginx
}
 
    virtual_ipaddress {
192.168.33.182/24
}
 
    notify_master "/etc/keepalived/notify.sh master"
    notify_backup "/etc/keepalived/notify.sh backup"
    notify_fault "/etc/keepalived/notify.sh fault"
}

#!/bin/bash
while true;
do
        A=`ps -ef|grep nginx |wc -l`
        B=`ps -ef|grep keepalived |wc -l`
if[ $A -eq 1];then
             echo ‘restart nginx!!!!‘
/usr/local/nginx/sbin/nginx
if[ $A -eq 1];then
if[ $B -gt 1];then
                           killall keepalived
                           service keepalived start &
fi
fi
fi
 
if[ $B -eq 1];then
                service keepalived start &
fi
 
        sleep 5
done

    # to have these messages end up in /var/log/haproxy.log you will
# need to:
#   
# 1) configure syslog to accept network log events.  This is done
#    by adding the ‘-r‘ option to the SYSLOGD_OPTIONS in
#    /etc/sysconfig/syslog
#   
# 2) configure local2 events to go to the /var/log/haproxy.log
#   file. A line like the following can be added to
#   /etc/sysconfig/syslog
#   
#    local2.*                       /var/log/haproxy.log
#   
# 上面说我们要把日志写到/var/log/haproxy.log需要修改以下两个地方：
1./etc/sysconfig/syslog , 这个我现在用的centos6.6已经没有了，取代它的是同目录下的rsyslog
vi /etc/sysconfig/rsyslog
这里对它做了以下更改：
修改前：SYSLOGD_OPTIONS="-c 5"
修改后：SYSLOGD_OPTIONS="-c 2 -r"

2. /etc/rsyslog.conf 修改日志存放位置
vi /etc/rsyslog.conf
我在local7.*下面加了一行，修改后是这样的：
# Save boot messages also to boot.loglocal7.*                                                /var/log/boot.loglocal2.*                                                /var/log/haproxy.log