以下脚本用于linux系统的初始化脚本,可以在服务器系统安装完毕之后立即执行。脚本结合各位大牛一些参数,已经在CentOS 5下通过。
使用方法:将其复制,保存为一个shell文件,比如init.sh。将其上传到linux服务器上,执行sh init.sh。建议大家在系统安装后立即执行。
脚本代码:
- #!/bin/bash
- # Configure yum source
- cd /tmp
- wget -c http://yum.baseurl.org/download/3.4/yum-3.4.3.tar.gz
- tar zxf yum-3.4.3.tar.gz
- cd yum-3.4.3
- ./yummain.py install yum -y
- cd ..
- rm -rf yum-3.4.3*
- sed -i ‘s@^exclude@#exclude@’ /etc/yum.conf
- yum clean all
- yum check-update
- mv /etc/yum.repos.d/CentOS-Debuginfo.repo /etc/yum.repos.d/CentOS-Debuginfo.repo$(date +%m%d)
- mv /etc/yum.repos.d/CentOS-Media.repo /etc/yum.repos.d/CentOS-Media.repo$(date +%m%d)
- mv /etc/yum.repos.d/CentOS-Vault.repo /etc/yum.repos.d/CentOS-Vault.repo$(date +%m%d)
- # Remove obsolete rpm package
- if [ -z “$(cat /etc/redhat-release | grep ‘5\.’)” ];then
- yum -y groupremove “FTP Server” “Text-based Internet” “Windows File Server” “PostgreSQL Database” “News Server” “MySQL Database” “DNS Name Server” “Web Server” “Dialup Networking Support” “Mail Server” “Ruby” “Office/Productivity” “Sound and Video” “X Window System” “X Software Development” “Printing Support” “OpenFabrics Enterprise Distribution”
- else
- yum -y groupremove “FTP Server” “PostgreSQL Database client” “PostgreSQL Database server” “MySQL Database server” “MySQL Database client” “Web Server” “Office Suite and Productivity” “Ruby Support” “X Window System” “Printing client” “Desktop*”
- fi
- # Update rpm package
- yum -y update
- # Install dependencies package
- yum -y install gcc gcc-c++ make 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 libtool-ltdl bison gd-devel vim-enhanced pcre-devel zip unzip sendmail
- # chkconfig
- chkconfig —list | awk ‘{print “chkconfig ” $1 ” off”}’ > /tmp/chkconfiglist.sh;/bin/sh /tmp/chkconfiglist.sh;rm -rf /tmp/chkconfiglist.sh
- chkconfig crond on
- chkconfig irqbalance on
- chkconfig network on
- chkconfig sshd on
- chkconfig rsyslog on #CentOS 6
- chkconfig syslog on #CentOS/RHEL 5
- chkconfig iptables on
- chkconfig sendmail on
- service sendmail restart
- # /etc/hosts
- [ “$(hostname -i)” != “127.0.0.1” ] && sed -i “s@^127.0.0.1\(.*\)@127.0.0.1 `hostname` \1@” /etc/hosts
- # Close SELINUX
- setenforce 0
- sed -i ‘s/^SELINUX=.*$/SELINUX=disabled/’ /etc/selinux/config
- # initdefault
- sed -i ‘s/^id:.*$/id:3:initdefault:/’ /etc/inittab
- /sbin/init q
- # 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
- # Record command
- sed -i ‘s/^HISTSIZE=.*$/HISTSIZE=100/’ /etc/profile
- echo “export PROMPT_COMMAND='{ msg=\$(history 1 | { read x y; echo \$y; });user=\$(whoami); echo \$(date \”+%Y-%m-%d %H:%M:%S\”):\$user:\`pwd\`/:\$msg —- \$(who am i); } >> /tmp/\`hostname\`.\`whoami\`.history-timestamp'” >> /root/.bash_profile
- # Wrong password five times locked 180s
- sed -i ‘4a auth required pam_tally2.so deny=5 unlock_time=180’ /etc/pam.d/system-auth
- # alias vi
- sed “s@alias mv=.*@alias mv=’mv -i’\nalias vi=vim@” /root/.bashrc
- echo ‘syntax on’ >> /etc/vimrc
- # /etc/security/limits.conf
- cat >> /etc/security/limits.conf <<EOF
- * soft nproc 65535
- * hard nproc 65535
- * soft nofile 65535
- * hard nofile 65535
- EOF
- echo “ulimit -SH 65535” >> /etc/rc.local
- # /etc/sysctl.conf
- sed -i ‘s/net.ipv4.tcp_syncookies.*$/net.ipv4.tcp_syncookies = 1/g’ /etc/sysctl.conf
- cat >> /etc/sysctl.conf << EOF
- fs.file–max=65535
- net.ipv4.tcp_tw_reuse = 1
- net.ipv4.tcp_tw_recycle = 1
- net.ipv4.ip_local_port_range = 1024 65000
- EOF
- sysctl -p
- if [ -z “$(cat /etc/redhat-release | grep ‘6\.’)” ];then
- sed -i ‘s/3:2345:respawn/#3:2345:respawn/g’ /etc/inittab
- sed -i ‘s/4:2345:respawn/#4:2345:respawn/g’ /etc/inittab
- sed -i ‘s/5:2345:respawn/#5:2345:respawn/g’ /etc/inittab
- sed -i ‘s/6:2345:respawn/#6:2345:respawn/g’ /etc/inittab
- sed -i ‘s/ca::ctrlaltdel/#ca::ctrlaltdel/g’ /etc/inittab
- sed -i ‘s@LANG=.*$@LANG=”en_US.UTF-8″@g’ /etc/sysconfig/i18n
- else
- sed -i ‘s@^ACTIVE_CONSOLES.*@ACTIVE_CONSOLES=/dev/tty[1-2]@’ /etc/sysconfig/init
- sed -i ‘s@^start@#start@’ /etc/init/control-alt-delete.conf
- fi
- /sbin/init q
- # Set timezone
- rm -rf /etc/localtime
- ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
- # Update time
- /usr/sbin/ntpdate pool.ntp.org
- echo ‘*/5 * * * * /usr/sbin/ntpdate pool.ntp.org > /dev/null 2>&1’ > /var/spool/cron/root;chmod 600 /var/spool/cron/root
- /sbin/service crond restart
- # iptables
- 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]
- :syn-flood – [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 tcp -m tcp –tcp-flags FIN,SYN,RST,ACK SYN -j syn-flood
- -A INPUT -j REJECT –reject-with icmp-host-prohibited
- -A syn-flood -p tcp -m limit –limit 3/sec –limit-burst 6 -j RETURN
- -A syn-flood -j REJECT –reject-with icmp-port-unreachable
- COMMIT
- EOF
- /sbin/service iptables restart
- source /etc/profile
- ###install tmux
- mkdir tmux
- cd tmux
- wget -c http://cloud.github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
- wget -c http://downloads.sourceforge.net/tmux/tmux-1.8.tar.gz
- tar xzf libevent-2.0.21-stable.tar.gz
- cd libevent-2.0.21-stable
- ./configure
- make && make install
- cd ../
- tar xzf tmux-1.8.tar.gz
- cd tmux-1.8
- CFLAGS=”-I/usr/local/include” LDFLAGS=”-L//usr/local/lib” ./configure
- make && make install
- cd ../../
- rm -rf tmux
- if [ `getconf WORD_BIT` = ’32’ ] && [ `getconf LONG_BIT` = ’64’ ] ; then
- ln -s /usr/local/lib/libevent-2.0.so.5 /usr/lib64/libevent-2.0.so.5
- else
- ln -s /usr/local/lib/libevent-2.0.so.5 /usr/lib/libevent-2.0.so.5
- fi
- ###install htop
- mkdir htop
- cd htop
- wget -c http://downloads.sourceforge.net/project/htop/htop/1.0.2/htop-1.0.2.tar.gz
- tar xzf htop-1.0.2.tar.gz
- cd htop-1.0.2
- ./configure
- make && make install
- cd ../../
- rm -rf htop
Fri Aug 16 17:49:05 CST 2013