What is Linux process 'SMBD' running on my server?
Solution 1:
smbd is the samba server daemon that provides filesharing and printing services to Windows clients. You can safely disable it if you do not provide file/print services to windows clients.
To stop the service
/sbin/service smb stop
to disable it from starting with your system
/sbin/chkconfig smb off
Solution 2:
smbd is the Samba Daemon. You are safe to disable it as long as you don't have Windows clients for your Linux Server. You are the only one who would know so.