If you run Windows, you can find some really great advice from Black Viper about which services you need or don’t need and under what circumstances. Scroll down and check the page links he has. For quite some years his has been the most reliable voice on such matters.
So far, I haven’t found anything equivalent for RHEL/CentOS 7. You can learn about how to check and turn on/off and enable/disable them on this page but there is nothing us mere mortals can read to discern what we need and what we don’t for our home or SOHO desktop use.
In this new release, RHEL has designed lots of things differently. Used to there would be a lot of services you just didn’t need and could easily turn them off using a GUI tool. That tool is gone, but so is the long list of services to kill. It’s pretty simple these days:
bluetooth
rpcbind
ssh
In each case I run both the commands for stopping and for disabling. I suppose you realize that if you are doing this on a machine where you plan to connect Bluetooth devices, you leave that one alone. That rpcbind is for NFS file server systems, and ssh is for use by technicians who need to log in remotely. That’s also a security risk for those of us who aren’t running these machines remotely, but right in front of us with a keyboard and all that stuff.
Please note that if you aren’t at all using my trick for connecting to a Windows machine that is sharing your home Internet connection, you also don’t need nfs-lock. If you need to run a Samba client, then you need nfs-lock. So far as I can tell, just about everything else in that list is pretty important to keep running.
