系统要求：Linux 2.6+ 内核，本文中的Linux操作系统为CentOS 5.8 64位）
系统为最精简安装文本界面,系统安装好后配置系统.
#修改系统DNS
rm -rf /etc/resolv.conf
touch /etc/resolv.conf
echo -ne "nameserver 114.114.114.114nnameserver 114.114.115.115nsearch localdomain" >>/etc/resolv.conf
#修改系统源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget http://mirrors.163.com/.help/CentOS5-Base-163.repo
cp CentOS5-Base-163.repo /etc/yum.repos.d/
#yum 升级安装,根据需求自己行删除
yum install -y lrzsz gcc gcc-c++ make flex autoconf automake vixie-cron libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel kernel-devel wget patch ntp libevent m4 zip unzip gd gd-devel file libtool-libs gmp-devel pspell-devel mod_perl-devel parted apr-util readline-devel sysstat vim* popt-devel patch openssh-clients net-snmp net-snmp-devel net-snmp-utils net-snmp-libs
#设置ssh下 SecureCRT标签显示为帐号@IP
touch /etc/sysconfig/bash-prompt-xterm
vim /etc/sysconfig/bash-prompt-xterm
#添加以下一行
echo -ne "e]2;${USER}@$(/sbin/ifconfig eth0|grep 'inet addr'|sed -e 's/^.*inet addr:(.*) Bcast.*$/1/')a"
#设置term类型是screen时(命令screen进入新窗口时)标签显示内容, 和xterm一样
cp /etc/sysconfig/bash-prompt-xterm /etc/sysconfig/bash-prompt-screen
#设置term类型不是xterm和screen时标签显示内容, 也和xterm一样
cp /etc/sysconfig/bash-prompt-xterm /etc/sysconfig/bash-prompt-default
#给予可执行权限
chmod +x /etc/sysconfig/bash-prompt-*
#修改文件句柄数为65535，默认系统为1024
echo "session required /lib64/security/pam_limits.so" >>/etc/pam.d/login
echo -ne "
* soft nofile 65534
* hard nofile 65534
" >>/etc/security/limits.conf
#添加iptables
rm -rf /etc/sysconfig/iptables
touch /etc/sysconfig/iptables
cat << EOF >> /etc/sysconfig/iptables
此段加入你的iptables规则
EOF
service iptables restart
#根据硬件优化Linux性能
cat << EOF >> /etc/sysctl.conf
# Add
#开启SYN Cookies，当出现SYN等待队列溢出时，启用cookies来处理
net.ipv4.tcp_syncookies = 1
#表示SYN队列的长度，默认为1024，加大队列长度为8192，可以容纳更多等待连接的网络连接数。
net.ipv4.tcp_max_syn_backlog = 65536
#每个网络接口接收数据包的速率比内核处理这些包的速率快时，允许送到队列的数据包的最大数目
net.core.netdev_max_backlog = 262144
net.ipv4.tcp_fin_timeout = 30
#当keepalive起用的时候，TCP发送keepalive消息的频度。缺省是2小时
