An information technology (IT) professional who installs, maintains, updates, and troubleshoots a computer system that runs on the UNIX® platform is known as a UNIX® system administrator. Working in a data center with a group of networked computers is typical of this type of system administrator job. A UNIX® system administrator’s primary responsibility is to ensure that each machine’s operating system is in good working order. A UNIX® administrator, like other types of IT system administrators, typically has a strong background in software security and user management.
The UNIX® command line is used extensively system administrators to complete routine tasks quickly. While a graphical user interface can be used to perform many software updates and installations, this method may require more steps. Many of these tasks can be automated and run in the background, allowing users to continue working at their machines without interruption. Many UNIX® administrator jobs require specific certifications, such as the A+® or Linux+® certifications. Each of these credentials demonstrates a thorough understanding of the fundamentals required to work as a UNIX® system administrator.
End users have access to their saved files whenever they need them, thanks to a UNIX® system administrator. Administrators are usually in charge of backing up each computer system to external hard drives or other storage media. Even with these safeguards in place, files can be accidentally deleted. Normally, a UNIX® administrator can recover these files and move them back to their proper locations on the hard drive. An administrator can also create new user accounts and delete existing ones.
A UNIX® system administrator’s other responsibilities include implementing security measures and troubleshooting any potential risks. Administrators typically install and update antivirus and anti-spyware tools to prevent unauthorized users from remotely accessing the computer network and causing damage to the operating systems of any of the machines. A system administrator may also review log files of user activity to ensure that no users have introduced security risks to the system, such as viruses.
A UNIX® system administrator’s responsibilities also include user support. Some users have issues with software as a result of errors or the need for updates. Typically, administrators can resolve such minor issues and troubleshoot more serious issues, such as temporary system crashes.