Seriously, you should be concerned about any person(s) that is the System Administrator on any system you will access. If the SA (System Administrator) does not do his job properly, it can make things difficult, if not impossible, for you, the user.

The following is a list of the most common, necessary, system administration tasks for the majority of hardware/software configurations:

Adding Users

Installing software, such as applications and operating system upgrades

Installing hardware, such as additional circuit boards, printers, terminals, and modems

Maintaining the security and integrity of the system and the network

Diagnosing and fixing software and hardware problems as they occur

Checking file system use to make sure your file systems do not become full

Maintaining printers, modems, and remote terminals

Backing up file systems

Maintaining network services, mail, and other communication services