Compiling Linux kernel

My server is RedHat Linux 9.0. My hosting provider installed the kernel from source.

This directory is exists :
/usr/src/linux

(1) Is it ok to recompile the kernel remotely ? So I will ssh to this server and recompile the kernel.

(2) I just want to change ONE of the compile option, from CONFIG_IP_MULTICAST=y to CONFIG_IP_MULTICAST=n, can anyone teach me how to do this ?

I have never recompiled a kernel before. But I do understand most basic linux commands/tasks.

Thank you.

 

 

 

 

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