Shulou(Shulou.com)06/03 Report--

1. Restart the centos6 Nic: service network restart

Restart the centos7 network card: systemctl restart network

[root@centos7 ~] # systemctl restart network

Nic profile:

[root@centos7 network-scripts] # cat-n ifcfg-ens33

[root@centos7 network-scripts] # pwd

/ etc/sysconfig/network-scripts

1 TYPE=Ethernet

2 PROXY_METHOD=none

3 BROWSER_ONLY=no

4 BOOTPROTO=dhcp

5 DEFROUTE=yes

6 IPV4_FAILURE_FATAL=no

7 IPV6INIT=yes

8 IPV6_AUTOCONF=yes

9 IPV6_DEFROUTE=yes

10 IPV6_FAILURE_FATAL=no

11 IPV6_ADDR_GEN_MODE=stable-privacy

12 NAME=ens33

13 UUID=8bfc7f02-2ae1-42e2-8c97-a0bc98135071

14 DEVICE=ens33

15 ONBOOT=yes

Nic profile:

Device type: TYPE=Ethernet

Address assignment mode: BOOTPROTO=static

Nic name: NAME=ens33

Whether to start: ONBOOT=yes

IP address: IPADDR=192.168.30.102

Subnet mask: NETMASK=255.255.255.0

Gateway address: GATEWAY=192.168.30.1

DNS address: DNS1=192.168.30.1

2. DNS configuration file: cat / etc/resolv.conf

Host and IP binding: cat / etc/hosts

Hostname: cat / etc/hostname

3. Turn off the firewall and set the boot not to start

Centos 7

View firewall status: systemctl status firewalld

Turn off: systemctl stop firewalld

Enable: systemctl start firewalld

Power on and automatically shut down: systemctl disable firewalld

Boot auto start: systemctl enable firewalld

Centos6

Turn off the firewall

Chkconfig iptables off

Turn on the firewall

Chkconifg iptables on

Check whether the boot is enabled: chkconfig-- list | grep network (centos 6)

Chkconfig iptables-list

4. Temporarily and permanently close Selinux

Temporary shutdown:

Getenforce

[root@centos7 ~] # getenforce

Enforcing

Setenforce 0

[root@centos7 ~] # setenforce

Usage: setenforce [Enforcing | Permissive | 1 | 0]

Setenforce:SELinux is disabled

Modify the configuration file:

Vim / etc/selinux/config

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