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  • Linux 系统初始化


    查看系统版本: cat /etc/redhat-release
    系统版本 CentOS Linux release 7.9.2009 (Core)

    升级软件包 yum -y upgrade
    安装epel yum install -y epel-release
    yum install -y vim net-tools wget gcc gcc-c++

    卸载软件: yum remove 软件名
    编译软件卸载 make uninstall 软件名

    查看ip ip addr
    查看dns: cat /etc/resolv.conf

    修改网卡配置 /etc/sysconfig/network-scripts/ifcfg-xxx
    开启网络 ONBOOT=yes

    静态ip
    BOOTPROTO=static
    添加:
    IPADDR=192.168.1.151
    NETMASK=255.255.255.0
    GATEWAY=192.168.1.1
    DNS1=192.168.1.1
    DNS2=8.8.8.8

    重启网络 systemctl restart network


    使用 iptables 管理防火墙
    禁用centos7默认防火墙 
    systemctl stop firewalld.service
    systemctl mask firewalld.service
    systemctl disable firewalld.service

    安装 iptables

    yum install -y iptables-services

    systemctl start iptables
    systemctl enable iptables


    IPTABLES 修改

    vim /etc/sysconfig/iptables

    根据服务器实际情况增加端口
    -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
    -A INPUT -m state --state NEW -m tcp -p tcp --dport 5672 -j ACCEPT
    service iptables restart

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  • 原文地址:https://www.cnblogs.com/blue-t/p/14495059.html
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