CentOS7修改网卡名称为eth0及一些基本设置

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环境说明：CentOS7 最小安装,所有配置默认
安装完成后，设置一个临时IP地址，方便SSH连接进行配置
查看服务器接口

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ip link

查看是否有IP地址

1

ip addr

设置接口UP

1	ip link set eno16777728 up

设置一个临时IP

1	ip addr add 10.10.10.71/24 dev eno16777728

添加网关

1	ip route add default via 10.10.10.2 dev eno16777728

添加DNS

1 2	vi /etc/resolv.conf nameserver 119.29.29.29

一.设置时区和时间
1.查看时间设置

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timedatectl       Local time: Sat 2016-07-02 12:44:43 EDT       #服务器时间   Universal time: Sat 2016-07-02 16:44:43 UTC       #标准时间(时区0时间)         RTC time: Sat 2016-07-02 16:44:43           #硬件时间        Time zone: America/New_York (EDT, -0400)     #时区      NTP enabled: n/a NTP synchronized: no RTC in local TZ: no       DST active: yes Last DST change: DST began at                   Sun 2016-03-13 01:59:59 EST                   Sun 2016-03-13 03:00:00 EDT Next DST change: DST ends (the clock jumps one hour backwards) at                   Sun 2016-11-06 01:59:59 EDT                   Sun 2016-11-06 01:00:00 EST

2.设置时区
查看可以设置的时区

1	timedatectl list-timezones  | grep Asia

设置时区为上海

1	timedatectl set-timezone Asia/Shanghai

3.同步网络时间并将时间写入到bios

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yum install ntpdate -y ntpdate 0.asia.pool.ntp.org timedatectl set-local-rtc 1         #将硬件时钟调整为与本地时钟一致(将BIOS时间改为和系统时间一至)

4.验证时间是否正确

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timedatectl       Local time: Sat 2016-07-02 16:05:24 CST   Universal time: Sat 2016-07-02 08:05:24 UTC         RTC time: Sat 2016-07-02 16:05:24        Time zone: Asia/Shanghai (CST, +0800)      NTP enabled: n/a NTP synchronized: no RTC in local TZ: yes       DST active: n/a

二.关闭selinux,firewalld和NetworkManager

1	vi /etc/selinux/config

修改SELINUX=enforcing为SELINUX=disabled
或者

1	sed -i 's/SELINUX=.*/SELINUX=disabled/' /etc/selinux/config

关闭并停止防火墙

1 2	systemctl stop firewalld systemctl disable firewalld

关闭并停止NetworkManager

1 2	systemctl stop NetworkManager systemctl disable NetworkManager

三.修改计算机名

1	hostnamectl set-hostname localhost.localdomain

或者

1 2	vi /etc/hostname localhost.localdomain

四.修改网卡接口名
1.修改grub,编辑/etc/default/grub并加入“net.ifnames=0”到GRUB_CMDLINE_LINUX变量

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vi /etc/default/grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap net.ifnames=0 rhgb quiet" GRUB_DISABLE_RECOVERY="true" grub2-mkconfig -o /boot/grub2/grub.cfg

2.手动生成70-persistent-net.rules
查看接口的MAC地址

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ip link show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eno16777728: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000     link/ether 00:0c:29:28:ac:54 brd ff:ff:ff:ff:ff:ff

mac地址为00:0c:29:28:ac:54 , 将MAC地址填入文件70-persistent-net.rules

1 2	vi /etc/udev/rules.d/70-persistent-net.rules SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:28:ac:54", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

3.修改网卡配置文件

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vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=none IPADDR=10.10.10.71 PREFIX=24 GATEWAY=10.10.10.2 mv /etc/sysconfig/network-scripts/ifcfg-eno16777728 /etc/sysconfig/network-scripts/ifcfg-eno16777728.bak

4.重起服务器

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reboot

五.安装vim 和网络管理组件ifconfig等

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yum install net-tools bash-completion vim -y ifconfig route

设置完成