#!/bin/bash
yum -y groupremove
"FTP Server"
"Text-based Internet"
"Windows File Server"
"PostgreSQL Database"
"News Server"
"DNS Name Server"
"Web Server"
"Dialup Networking Support"
"Mail Server"
"Office/Productivity"
"Ruby"
"Office/Productivity"
"Sound and Video"
"X Window System"
"X Software Development"
"Printing Support"
"OpenFabrics Enterprise Distribution"
#安装依赖包
yum -y install gcc gcc-c++ autoconf 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-devel libidn libidn-devel openssl openssl-devel nss_ldap openldap openldap-devel openldap-clients openldap-servers libxslt-devel libevent-devel ntp libtool-ltdl bison libtool vim-enhanced
#关闭不必要的服务
chkconfig --list | awk
'{print "chkconfig " $1 " off"}'
> /tmp/chkconfiglist.sh;/bin/sh /tmp/chkconfiglist.sh;rm -rf /tmp/chkconfiglist.sh
chkconfig crond on
chkconfig irqbalance on
chkconfig network on
chkconfig sshd on
chkconfig syslog on
chkconfig iptables on
setenforce 0
sed -i
's/^SELINUX=.*$/SELINUX=disabled/g'
/etc/sysconfig/selinux
#修改启动模式
sed -i
's/id:.*$/id:3:initdefault:/g'
/etc/inittab
#关闭不需要的tty
sed -i
's/3:2345:respawn/#3:2345:respawn/g'
/etc/inittab
sed -i
's/4:2345:respawn/#4:2345:respawn/g'
/etc/inittab
sed -i
's/5:2345:respawn/#5:2345:respawn/g'
/etc/inittab
sed -i
's/6:2345:respawn/#6:2345:respawn/g'
/etc/inittab
sed -i
's/ca::ctrlaltdel/#ca::ctrlaltdel/g'
/etc/inittab
/sbin/init q
#修改PS1
echo
'PS1="\[\e[37;40m\][\[\e[32;40m\]\u\[\e[37;40m\]@\h \[\e[35;40m\]\W\[\e[0m\]]\\$ \[\e[33;40m\]"'
>> /etc/profile
#修改shell命令的history记录个数
sed -i
's/HISTSIZE=.*$/HISTSIZE=100/g'
/etc/profile
source /etc/profile
#记录每个命令
mkdir
/root/logs
echo
"export PROMPT_COMMAND='{ msg=\$(history 1 | { read x y; echo \$y; });user=\$(whoami); echo \$(date \"+%Y-%m-%d %H:%M:%S\"):\$user:\`pwd\`/:\$msg ---- \$(who am i); } >> \$HOME/logs/\`hostname\`.\`whoami\`.history-timestamp'"
>> /root/.bash_profile
#密码输错5次锁定180s
sed -i
'4a auth required pam_tally2.so deny=5 unlock_time=180'
/etc/pam.d/system-auth
#alias设置
sed -i
'7a alias vi=vim'
/root/.bashrc
#调整Linux的最大文件打开数
echo
"* soft nofile 60000"
>> /etc/security/limits.conf
echo
"* hard nofile 65535"
>> /etc/security/limits.conf
echo
"ulimit -SH 65535"
>> /etc/rc.local
#关闭ipv6
sed -i
's/NETWORKING_IPV6=.*$/NETWORKING_IPV6=no/g'
/etc/sysconfig/network
#网络参数进行调整
sed -i
's/net.ipv4.tcp_syncookies.*$/net.ipv4.tcp_syncookies = 1/g'
/etc/sysctl.conf
echo
'net.ipv4.tcp_tw_reuse = 1'
>> /etc/sysctl.conf
echo
'net.ipv4.tcp_tw_recycle = 1'
>> /etc/sysctl.conf
echo
'net.ipv4.ip_local_port_range = 1024 65000'
>> /etc/sysctl.conf
sysctl -p
#校正时间
/usr/sbin/ntpdate ntp.api.bz
echo
'*/5 * * * * /usr/sbin/ntpdate ntp.api.bz'
> /
var
/spool/cron/root;
chmod
600 /
var
/spool/cron/root
/sbin/service crond restart
#iptables配置
sed -i
's/IPTABLES_MODULES="ip_conntrack_netbios_ns"/#IPTABLES_MODULES="ip_conntrack_netbios_ns"/g'
/etc/sysconfig/iptables-config
cat > /etc/sysconfig/iptables << EOF
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT DROP [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -p icmp -m limit --limit 100/sec --limit-burst 100 -j ACCEPT
-A INPUT -p icmp -m limit --limit 1/s --limit-burst 10 -j ACCEPT
# -A INPUT -p udp -m udp --dport 20 -j ACCEPT
COMMIT
EOF
/sbin/service atd start
echo
"/sbin/service iptables stop"
| at now+3minutes
/sbin/service iptables restart
