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This article mainly explains "the method of setting IP and gateway in ubuntu". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to set up IP and gateway in ubuntu".

If you are using Ubuntu in a virtual machine, please refer to my previous article on how to set the network settings in the connection extranet by referring to the Net method of the virtual machine. Set up the network of the host, and then configure the IP and gateway of the virtual machine Ubuntu.

If the host operating system is Ubuntu, please refer to the following

The contents are as follows:

1. To verify that you can connect, use the ping command to ping the gateway

It's always realistic at the beginning, unreachable.

two。 Set up IP

Sudo ifconfig eth0 133.133.133.190 netmask 255.255.255.0

In this way, the IP address and subnet mask of the network card eth0 are set.

3. Set the gateway sudo route add default gw 133.133.133.40

4. Ping gateway can be connected with ping.

5. Set DNS modification / etc/resolv.conf to add to it

Address 1 of nameserver DNS

Address 2 of nameserver DNS

Done.

After this setting, it seems that the IP will change again the next time it is turned on.

Permanently modify Ubuntu LINUX IP

Use the command to set the ip address of ubuntu

1. Set IP sudo ifconfig eth0 203.171.239.155 netmask 255.255.255.224 so that even if the IP address and subnet mask of the network card eth0 are set

two。 Set the gateway sudo route add default gw 203.171.239.129

3. Set DNS to modify / etc/resolv.conf, and address 2 of the address 1 nameserver DNS that is added to the nameserver DNS is completed. However, after this setting, it seems that IP will no longer exist the next time it is turned on.

Second, directly modify the system configuration file ubuntu network configuration file is: / etc/network/interfaces open inside can be set DHCP or manually set static ip. Front auto eth0, let the network card boot and mount automatically.

1. Configure the network card edit file in DHCP mode, switch to / etc/network/interfaces: specify the following command, sudo vi / etc/network/interfaces

And replace the line about eth0 with the following line:

# The primary network interface-use DHCP to find our address

Auto eth0 iface

Eth0 inet dhcp

Use the following command to make the network settings effective: sudo / etc/init.d/networking restart

You can also enter the following command directly from the command line to get the address sudo dhclient eth0

two。 Configure static IP address editing file for network card

/ etc/network/interfaces: sudo vi / etc/network/interfaces

And replace the line about eth0 with the following line:

# The primary network interface

Auto eth0

Iface eth0 inet static

Address 203.171.239.155

Gateway 203.171.239.129

Netmask 255.255.255.224

# network 203.171.239.128 # broadcast 192.168.3.159

Change the above ip address and other information to yourself. Use the following command to make the network settings effective: sudo / etc/init.d/networking restart

3. Set the second IP address (virtual IP address) to edit the file

/ etc/network/interfaces: sudo vi / etc/network/interfaces

Add the following line to the file:

Auto eth0:1 iface eth0:1 inet static address 192.168.1.155 netmask 255.255.255.0 work x.x.x.x broadcast x.x.x.x gateway x.x.x.x fill in all information such as address,netmask,network,broadcast and gateways according to your situation. Use the following command to make the network settings effective: sudo / etc/init.d/networking restart

4. Set host name (hostname) use the following command to view the host name of the current host: sudo / bin/hostname uses the following command to set the host name of the current host: when the sudo / bin/hostname newname system starts, it reads the host name from / etc/hostname. 5. To configure DNS, first of all, you can add some host names and IP addresses corresponding to these host names in / etc/hosts, which is a simple local static query. To access the DNS server for query, you need to set up the / etc/resolv.conf file. Suppose the IP address of the DNS server is 203.171.230.6. The content of the resolv.conf file should be: search test.com nameserver 203.171.230.6 restart the network: / etc/init.d/networking restart

PS: according to the above method, install Ubuntu in the virtual machine VMware, set the virtual machine network connection method to Net, and set the static IP connection network. I have passed the test. Directly modifying resolv.con and interfaces can ensure that the set IP still exists after boot.

Thank you for your reading. the above is the content of "how to set up IP and gateway in ubuntu". After the study of this article, I believe you have a deeper understanding of the method of setting up IP and gateway in ubuntu, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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