Disable loading kernel modules


 
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Operating Systems Linux Disable loading kernel modules
# 1  
Old 08-20-2014
Disable loading kernel modules

Hi,

I am running CentOS 6.5 and I want to remove auto loading 8021q and garp modules, but there are no configure files in /etc/modprobe.d define bot modules.

I even added both module names to /etc/modprobe.d/blacklist.conf, both of them are still loaded after the reboot. How can I disable both modules from boot?

Code:
$ lsmod | grep 8021q
8021q                  25317  0 
garp                    7152  1 8021q

Thank you.

Last edited by Don Cragun; 08-20-2014 at 05:51 AM.. Reason: Add CODE and ICODE tags.
# 2  
Old 08-20-2014
Rename them then reboot. Be sure to have a rescue disk handy...
This User Gave Thanks to achenle For This Post:
# 3  
Old 08-20-2014
Try this: in modprobe.d create a new file called 8021q. In it, put the lines:
Code:
install 8021q /bin/true
install garp /bin/true

This tells the kernel to use non-standard versions of 8021q and garp from a file called /bin/true. /bin/true won't supply usable versions and the modules will not work. The NSA uses this trick in their linux hardeneing docs to disable stuff not intended to be disabled.
This User Gave Thanks to Perderabo For This Post:
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