linux服务器安装后初始化配置

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#关闭selinux和firewalld，配置网络

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getenforce setenforce 0 vi /etc/selinux/config SELINUX=disabled systemctl status firewalld systemctl stop firewalld systemctl disable firewalld

#查看ip地址

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ip add

#启动和关闭网卡

1	ifup/ifdown

#配置网卡

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vi /etc/sysconfig/network-scripts/ifcfg-eno16777728 BOOTPROTO=static IPADDR=192.168.1.99 NETMASK=255.255.255.0 GATEWAY=192.168.1.1 DNS1=192.168.1.100 NM_CONTROLLED=no

#单独添加DNS服务器地址

1	echo 'DNS1=192.168.1.100'>>/etc/sysconfig/network-script/ifcfg-eno16777728

#DNS服务器添加记录

1 2	vi /var/named/example.zone vi /var/named/192.168.1.zone

#配置hostname

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vi /etc/sysconfig/network NETWORKING=yes HOSTNAME=lin26.example.local

#重启network服务

1	systemctl restart network

#使用本地repo

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mkdir /etc/yum.repos.d/backup mv /etc/yum.repos.d/*.* /etc/yum.repos.d/backup vi /etc/yum.repos.d/lin01.repo [base] name=lin01 baseurl=http://lin01.example.local/cdrom enable=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 yum clean all yum update

#使用阿里云repo

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vi /etc/yum.repos.d/aliyun.repo [base] name=aliyun baseurl=http://mirrors.aliyun.com/centos/7/os/x86_64/ enable=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 yum clean all yum update

#配置时区和时间同步

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tzselect yum install -y ntpdate #和服务器的时间差不能超过1天 ntpdate -d lin01.example.local vi /etc/crontab 00 */1 * * * root /usr/sbin/ntpdate lin01.example.local;/sbin/hwclock -w

#手动设置时间

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date -s 11/16/2015 date -s 18:28:00 hwclock -w

#安装net-tools，查看启动的服务和端口

1 2	yum install -y net-tools netstat -ntupl

#关机，重启，取消操作

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shutdown -P shutdown -r shutdown -c reboot

#关机前把数据从buffer写到磁盘确保完整性

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sync