Whats the difference between RHCT and RHCE?
An RHCT has proven technician-level competencies required to install, attach, configure, and manage new Red Hat systems on an existing production network. RHCTs are capable of performing the core system administration common to all systems, regardless of whether they are workstations, servers, network devices, or some other kind of system. An RHCE has also proven these RHCT competencies, and has demonstrated that he or she can configure networking services and security on servers running a Red Hat OS.