System initialization script after Linux is launched

System initialization script after Linux is launched

#!/bin/bash# Program:# system_init_shellcat << EOF +--------------------------------------------------------------+ |        === Welcome to RedHat 6.x System init ===      | +--------------------------------------------------------------+EOF#update 163 yum#cd /etc/yum.repos.d#mv CentOS-Base.repo  CentOS-Base.repo.bak#wget http://mirrors.163.com/.help/CentOS-Base-163.repo#mv CentOS-Base-163.repo  CentOS-Base.repo#yum clean metadata#yum makecache#add epel#rpm -Uvh http://download.Fedora.RedHat.com/pub/epel/6/x86_64/epel-release-6-5.noarch.rpm#rpm  –import  /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6#add rpmforge#rpm -Uvh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm#rpm –import  /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmforge-dag#update system packyum -y install gcc gcc-c++ make autoconf libtool-ltdl-devel gd-devel freetype-devel libxml2-devel libjpeg-devel libpng-devel openssl-devel curl-devel bison patch unzip libmcrypt-devel libmhash-devel ncurses-devel sudo bzip2 mlocate flex lrzsz sysstat lsof setuptool  system-config-network-tui system-config-firewall-tui ntp libaio-devel wget ntp#set ntpecho "2 5 * * * /usr/sbin/ntpdate 10.10.2.165;/sbin/clock -w >/dev/null 2>&1" >> /var/spool/cron/root/usr/sbin/ntpdate 10.10.2.165;/sbin/clock -w >/dev/null 2>&1service crond restart#set ulimit#echo "ulimit -SHn 65536" >> /etc/rc.localcat >> /etc/security/limits.conf << EOF *           soft   nofile       65536 *           hard   nofile       65536 *           soft   nproc        65536 *           hard   nproc        65536EOF#set max user processessed -i 's/1024/102400/' /etc/security/limits.d/90-nproc.conf# turnoff the control-alt-deletesed -i 's#exec /sbin/shutdown -r now#\#exec /sbin/shutdown -r now#' /etc/init/control-alt-delete.conf#close useless servicechkconfig --level 2345 iptables off/etc/init.d/xinetd startchkconfig xinetd onchkconfig rsync onlsof -i:873echo "service is init is ok.............."#set sshsed -i 's/^GSSAPIAuthentication yes$/GSSAPIAuthentication no/' /etc/ssh/sshd_configsed -i 's/#UseDNS yes/UseDNS no/' /etc/ssh/sshd_configservice sshd restart#set hosts.allowcat >> /etc/security/limits.conf << EOFsshd:10.10.1.60sshd:10.10.1.61sshd:10.10.2.101sshd:10.10.2.100EOF#disable ipv6echo "alias net-pf-10 off" >> /etc/modprobe.confecho "alias ipv6 off" >> /etc/modprobe.conf/sbin/chkconfig ip6tables offecho "ipv6 is disabled!"#vim settingsed -i "8 s/^/alias vi='vim'/" /root/.bashrcecho 'syntax on' > /root/.vimrccat << EOF +--------------------------------------------------------------+ |                    ===System init over===       | +--------------------------------------------------------------+EOFecho "###############################################################"