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标题 分享个简易版Linux服务器初始化Shell脚本
范文
    该Shell脚本主要用于新安装Linux服务器系统的初始化工作,包括关闭IPv6模块,关闭SELinux,让vim显示颜色,设置系统语言编码,优化系统服务,内核参数优化等
    该Shell脚本主要用于新安装Linux服务器系统的初始化工作,具体包括:
    关闭IPv6模块
    关闭SELinux
    让vim显示颜色
    设置系统语言编码
    优化系统服务
    内核参数优化等。
    可以根据自己的实际情况修改,可用于生产环境。原作者是NetSeek,本人做了部分修改。
    复制代码 代码如下:
    #!/bin/sh
    # desc: lsm03624 modified by www.webnginx.com
    #-------------------cut begin-------------------------------------------
    #welcome
    cat << EOF
    +--------------------------------------------------------------+
    | === Welcome to Centos System init === |
    +--------------http://www.linuxtone.org------------------------+
    +----------------------Author:NetSeek--------------------------+
    EOF
    #disable ipv6
    cat << EOF
    +--------------------------------------------------------------+
    | === Welcome to Disable IPV6 === |
    +--------------------------------------------------------------+
    EOF
    echo "alias net-pf-10 off" >> /etc/modprobe.conf
    echo "alias ipv6 off" >> /etc/modprobe.conf
    /sbin/chkconfig --level 35 ip6tables off
    echo "ipv6 is disabled!"
    #disable selinux
    sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config
    echo "selinux is disabled,you must reboot!"
    #vim
    sed -i "8 s/^/alias vi='vim'/" /root/.bashrc
    echo 'syntax on' > /root/.vimrc
    #zh_cn
    sed -i -e 's/^LANG=.*/LANG="zh_CN.UTF-8"/' /etc/sysconfig/i18n
    # configure file max to 52100
    echo "* soft nofile 52100
    * hard nofile 52100" >> /etc/security/limits.conf
    #tunoff services
    #--------------------------------------------------------------------------------
    cat << EOF
    +--------------------------------------------------------------+
    | === Welcome to Tunoff services === |
    +--------------------------------------------------------------+
    EOF
    #---------------------------------------------------------------------------------
    for i in `ls /etc/rc3.d/S*`
    do
    CURSRV=`echo $i|cut -c 15-`
    echo $CURSRV
    case $CURSRV in
    cpuspeed | crond | irqbalance | microcode_ctl | mysqld | network | nginx | php-fpm | sendmail | sshd | syslog )
    #这个启动的系统服务根据具体的应用情况设置,其中network、sshd、syslog是三项必须要启动的系统服务!
    echo "Base services, Skip!"
    *)
    echo "change $CURSRV to off"
    chkconfig --level 235 $CURSRV off
    service $CURSRV stop
    esac
    done
    rm -rf /etc/sysctl.conf
    echo "net.ipv4.ip_forward = 0
    net.ipv4.conf.default.rp_filter = 1
    net.ipv4.conf.default.accept_source_route = 0
    kernel.sysrq = 0
    kernel.core_uses_pid = 1
    net.ipv4.tcp_syncookies = 1
    kernel.msgmnb = 65536
    kernel.msgmax = 65536
    kernel.shmmax = 68719476736
    kernel.shmall = 134217728
    net.ipv4.ip_local_port_range = 1024 65536
    net.core.rmem_max = 16777216
    net.core.wmem_max = 16777216
    net.ipv4.tcp_rmem = 4096 87380 16777216
    net.ipv4.tcp_wmem = 4096 65536 16777216
    net.ipv4.tcp_fin_timeout = 3
    net.ipv4.tcp_tw_recycle = 1
    net.core.netdev_max_backlog = 30000
    net.ipv4.tcp_no_metrics_save = 1
    net.core.somaxconn = 262144
    net.ipv4.tcp_syncookies = 0
    net.ipv4.tcp_max_orphans = 262144
    net.ipv4.tcp_max_syn_backlog = 262144
    net.ipv4.tcp_synack_retries = 2
    net.ipv4.tcp_syn_retries = 2
    vm.swappiness = 6" >> /etc/sysctl.conf
    echo "optimizited kernel configure was done!"
随便看

 

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更新时间:2025/5/21 22:50:33