yum -y remove php-mhash php-ncurses
rpm -Uvh http://repo.webtatic.com/yum/centos/5/latest.rpm
yum -y –enablerepo=webtatic update php
或者
yum -y –enablerepo=webtatic install php
详细说明：http://www.webtatic.com/packages/php53/
centos下找不到crontab- -Google结果很简单
yum -y install vixie-cron
Contents: atomic.repo
# Name: Atomic Rocket Turtle RPM Repository for CentOS / Red Hat Enterprise Linux 5 –
# URL: http://www.atomicrocketturtle.com/
[atomic]
name = CentOS / Red Hat Enterprise Linux $releasever – atomicrocketturtle.com
mirrorlist = http://www.atomicorp.com/mirrorlist/atomic/centos-5-$basearch
#mirrorlist = http://www.atomicorp.com/channels/atomic/centos/5/mirrors-atomic
enabled = 1
priority = 1
protect = 0
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY.art.txt
gpgcheck = 1
# Almost Stable, release candidates for [atomic]
[atomic-testing]
name = CentOS / Red Hat Enterprise Linux $releasever – atomicrocketturtle.com – (Testing)
mirrorlist = http://www.atomicorp.com/mirrorlist/atomic-testing/centos-5-$basearch
enabled = 0
priority = 1
protect = 0
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY.art.txt
gpgcheck = 1
# Untested, Unstable, known buggy, and incomplete packages.
#[atomic-bleeding]
#name = CentOS / Red Hat Enterprise Linux $releasever – atomicrocketturtle.com – (Bleeding)
#baseurl = http://www.atomicorp.com/channels/atomic-bleeding/centos/5/$basearch/
#enabled = 0
#priority = 1
#protect = 0
#gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY.art.txt
#gpgcheck = 1
yum install php-zend-optimizer
嗯，今天实在不知道的写什么，就只有把老本拿出来了：自己折腾了N台vps后整理出的快速配置centos的脚本，只要打开terminal一行行的粘进去回车就完事。
正常情况下是可以在5分钟内完成一台新vps的配置的，如果遇到非正常情况。。就。。。。。。
跑poptopd的前提是你的vps是xen架构，否则免谈
#安装epel+rpmforge
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
wget http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt http://quattor.web.lal.in2p3.fr/packages/os/sl520-x86_64/base/RPM-GPG-KEYs/RPM-GPG-KEY-CentOS-5 http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm
rpm –import RPM-GPG-KEY.dag.txt
rpm –import RPM-GPG-KEY-CentOS-5
rpm -Uhv rpmforge-release-0.5.1-1.el5.rf.i386.rpm
#更新系统
yum -y update
yum -y upgrade
#install php 5.2+ on centos5
vim /etc/yum.repos.d/CentOS-Testing.repo
[c5-testing]
name=CentOS-5Testing
baseurl=http://dev.centos.org/centos/$releasever/testing/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing
includepkgs=php*
#安装lamp和subversion+其他一些东西
yum -y install perl-Net-SSLeay gcc-c++ patch zlib-devel openssl-devel readline-devel mysql-devel mysql-server httpd-devel apr-devel iptables php-common php-gd php-mcrypt php-pear php-mhash php-mysql php-xml php-mbstring traceroute bind-utils setuptool mod_dav_svn subversion sqlite-devel ntp
#poptopd pptp vpn server
rpm -Uvh http://poptop.sourceforge.net/yum/stable/fc7/pptp-release-current.noarch.rpm
yum -y –enablerepo=poptop-stable install pptpd
vim /etc/pptpd.conf (修改localip、remoteip)
vim /etc/ppp/options (修改ms-dns),
vim /etc/ppp/chap-secrets (创建用户名、密码，指定ip)
vim /etc/sysctl.conf
#修改
net.ipv4.ip_forward = 1
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -s 内网ip段(eg. 192.168.100.0/24) -j SNAT –to 服务器的任意ip(eg. 1.2.3.4)
/etc/init.d/iptables save
/etc/init.d/iptables restart
#webmin图形化的web管理界面，减少命令行的折腾程度
wget http://prdownloads.sourceforge.net/webadmin/webmin-1.520-1.noarch.rpm
rpm -i webmin-1.520-1.noarch.rpm
#subversion
svnadmin create /path/to/repo
chmod 777 -R /path/to/repo
htpasswd -c /path/to/svn/password username#下面这段丢给httpd.conf
DocumentRoot /path/to/svn/repo
ServerName svn.yourname.com
DAV svn
SVNPath /data/svn
AuthType Basic
AuthName “Subversion”
AuthUserFile /path/to/svn/password
Require valid-user
#大功告成^_^
yum -y install haproxy
vim /etc/haproxy/haproxy.cfg
# use_backend static if url_static #注释掉这一行
server app1 你的服务器真实ip:端口 check #修改这一行
删掉其余两行server app1
保存退出完事
然后service haproxy start
自己hosts后就可以感受一下了，对于动态内容加速效果还是很明显的，支持非常强大的配置，等有空研究清楚了继续贴配置
之前搞错了- -haproxy主要是作为load balancer用，部署在最前端，后面一般是个squid群，squid之后才是应用服务器，应用服务器后面可以再来一层数据库服务器，这样的架构抗负载能力是非常强悍的。
目前我这个烂博客已经实现squid+apache+mysql分布在3台服务器，其中一台跑在xeex的网络后面作为前端，另外两个在Amazon的ec2上。估计是没必要考虑引入haproxy的了- –