Linux Centos 7、Centos 8 配置IP、防火墙、修改主机名、添加磁盘、ssh常超连接

本文链接：https://blog.youkuaiyun.com/zhi_linux/article/details/125847607

Linux IP配置

ip配置文件位置

vim  /etc/sysconfig/network-scripts/ifcfg-eno

修改内容：

TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPADDR=192.168.100.60
NETMASK=255.255.255.0
GATEWAY=192.168.100.1
DNS1=114.114.114.114
NAME=eno16780032
UUID=7fdc1010-4058-42a6-911a-a1d258a583f6
DEVICE=eno16780032
ONBOOT=yes

重启网卡

systemctl restart network

安装ifconfig

yum search ifconfig
yum -y install net-tools.x86_64

安装vim wget

yum -y install vim  wget

Linux 防火墙

关闭防火墙

//安装iptables服务以便查看防火墙规则

yum -y install  iptables-service

//临时关闭防火墙
systemctl stop firewalld

//禁止开机启动防火墙
systemctl disable firewalld

Linux 修改主机名

临时修改主机名

hostname  test

永久修改主机名，/etc/hostname 将被自动更新

hostnamectl set-hostname test

Linux 添加新磁盘

添加磁盘

fdisk -l
fdisk  /dev/sdb

格式化磁盘

mkfs.ext4 /dev/sdb1

挂载新磁盘

mkdir /data
mount /dev/sdb1  /data/

设置开机挂载

vim /etc/fstab

# /etc/fstab
# Created by anaconda on Mon Jul 18 22:04:47 2022
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=f82ad94f-6b7f-441a-865b-ae689b89df5f /boot xfs defaults 0 0
UUID=87F5-46E4 /boot/efi vfat umask=0077,shortname=winnt 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
#/dev/sdb1 挂载 /data
/dev/sdb1 /data ext4 defaults 1 2