How to solve the hosts file format error in Linux

The solution to the format error of the hosts file in Linux is: 1. Open the terminal as an administrator or use the sudo command; 2. Open the hosts file with the command "sudo vi /etc/hosts"; 3. Check And fix formatting errors, make sure each entry occupies one line and separate fields with spaces or tabs; 4. Save the file and exit the editor; 5. Test whether the modifications take effect.

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

If there is a format error in the hosts file in Linux, you can take the following steps to solve it:

1. Open the terminal as an administrator or use the sudo command: To modify the hosts file, you Requires administrator rights.

2. Open the hosts file: The hosts file is located in the /etc/hosts directory. The file can be opened using a text editor (such as vi, nano, etc.).

sudovi/etc/hosts

3. Check and fix format errors: In the hosts file, each entry should be arranged in the following format: IP address host name [alias]. Make sure each entry occupies one line and separate fields with spaces or tabs.

For example, an example of a correct hosts file:

127.0.0.1localhost
192.168.0.1example.comalias1

Check each line in the file to make sure it is well-formed and has no extra spaces, comments, or other special characters.

4. Save the file and exit the editor: After saving the changes in the editor, follow the editor's guidelines to save the file and exit.

5. Test whether the modification takes effect: After modifying the hosts file, you can try to use the modified host name or alias to access the corresponding IP address to confirm whether the modification takes effect.

Please note that before modifying the hosts file, it is best to back up the original file in case problems arise. This ensures that you can revert to the previous configuration if needed.

The above is the detailed content of How to solve the hosts file format error in Linux. For more information, please follow other related articles on the PHP Chinese website!