How to Disable Network Manager in CentOS 7
Disclaimer/Disclosure: Some of the content was synthetically produced using various Generative AI (artificial intelligence) tools; so, there may be inaccuracies or misleading information present in the video. Please consider this before relying on the content to make any decisions or take any actions etc. If you still have any concerns, please feel free to write them in a comment. Thank you.
—
Summary: Learn how to disable Network Manager on CentOS 7 to manage network configurations manually.
—
If you’re working with CentOS 7 and prefer managing network configurations manually, disabling Network Manager can be a straightforward task. Here’s a step-by-step guide to accomplish this:
Method 1: Stopping and Disabling Network Manager Service
Stop the Network Manager Service:
Use the following command to stop the Network Manager service:
[[See Video to Reveal this Text or Code Snippet]]
Disable Network Manager on Boot:
To ensure Network Manager doesn’t start automatically on system boot, disable the service:
[[See Video to Reveal this Text or Code Snippet]]
Restart the Network Service (if needed):
After disabling Network Manager, you might want to restart the networking service to apply manual configurations:
[[See Video to Reveal this Text or Code Snippet]]
Method 2: Masking Network Manager Service
Another approach is to “mask” the Network Manager service, preventing it from being started by any means (including dependencies and manual starts).
Mask the Network Manager Service:
Use the mask command to mask the Network Manager service:
[[See Video to Reveal this Text or Code Snippet]]
Masking a service prevents it from being started, even if another service or process attempts to start it.
Confirming Changes
To confirm that Network Manager is no longer managing network interfaces, you can check the status of the service and ensure it’s not running:
[[See Video to Reveal this Text or Code Snippet]]
You should see output indicating that the service is inactive (dead) and disabled.
Reverting Changes (If Necessary)
If you ever need to re-enable Network Manager, you can reverse the steps:
[[See Video to Reveal this Text or Code Snippet]]
However, keep in mind that managing network settings manually after disabling Network Manager requires configuring network interfaces directly using tools like ifconfig or editing configuration files in /etc/sysconfig/network-scripts/.
By following these steps, you can effectively disable Network Manager on CentOS 7 and take full control over your network configurations.
centos 7
