Shulou(Shulou.com)06/01 Report--

What this article shares to you is about how to modify the DNS address in the Linux system. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

1. Modify hostname

The code is as follows:

# hostname Slyar

two。 Modify the IP address (eth0 is the name of the network card)

The code is as follows:

# ifconfig eth0 192.168.1.5 netmask 255.255.255.0

3. Modify the default gateway (eth0 is the name of the network card)

The code is as follows:

# route add default gw 192.168.1.1 dev eth0

4. Modify DNS

The code is as follows:

# vim / etc/resolv.conf

CentOS (RedHat) command line permanently modifies IP address, gateway, DNS

The command line permanently modifies the IP address, gateway, and DNS

1. Modify IP address

First check the number and name of your host network card. The relevant information is under / etc/sysconfig/network-scripts/.

You can see from the picture that I have two network cards, the first one is Ethernet physical network card, the number is 0, if you have more than one network card, the number is 0, 1, 2, 3. The second network card is a loop network card, which generally does not need to be set.

Using vim to edit you need to set up the IP network card, here I can only modify ifcfg-eth0, look at the picture, without much explanation, the previous state is the way it is written when BOOTPROTO is set to DHCP.

The code is as follows:

Vim / etc/sysconfig/network-scripts/ifcfg-eth0

The code is as follows:

DEVICE=eth0 # Nic name

BOOTPROTO=static # how to get ip (static/dhcp/bootp), without explanation

HWADDR=00:0C:29:B5:B2:69 # MAC address

IPADDR=12.168.1.5 # IP address

NETMASK=255.255.255.0 # Subnet Mask

NETWORK=192.168.1.0 # Network address

BROADCAST=192.168.0.255 # broadcast address

NBOOT=yes # Boot device

two。 Modify the gateway

The code is as follows:

Vim / etc/sysconfig/network

Add a gateway message

The code is as follows:

GATEWAY=192.168.1.1

3. Modify DNS

The code is as follows:

Vim / etc/resolv.conf

Just add DNS information.

The code is as follows:

Nameserver 192.168.1.1

4. Reload the network configuration

The code is as follows:

/ etc/init.d/network restart

The above is how to modify the DNS address in the Linux system. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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