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2. Red Hat Certification Program - Wikipedia

   en.wikipedia.org/wiki/Red_Hat_Certification_Program

   Red Hat recommends preparing for the exam by taking courses in Linux essentials (RH124), Linux administration (RH134), and Linux networking and security (RH254) if one does not have previous experience. [11] Previous real-world experience is also advised. [12] RHCE was the first Red Hat certificate launched, in 1999. [6]

3. System administrator - Wikipedia

   en.wikipedia.org/wiki/System_administrator

   An IT administrator, system administrator, sysadmin, or admin is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems, especially multi-user computers, such as servers.

4. Category:Linux administration - Wikipedia

   en.wikipedia.org/wiki/Category:Linux_administration

   Pages in category "Linux administration" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes. C. Control-Alt-Delete; U.

5. at (command) - Wikipedia

   en.wikipedia.org/wiki/At_(command)

   As with cron, many Unix systems allow the administrator to restrict access to the at command. at can be made to mail a user when done carrying out a scheduled job, can use more than one job queue, and can read a list of jobs to carry out from a file instead of standard input. The Linux at command was mostly written by Thomas Koenig. [3]

6. Database administrator - Wikipedia

   en.wikipedia.org/wiki/Database_administrator

   A database administrator (DBA) manages computer databases. [1] The role may include capacity planning , installation , configuration , database design , migration , performance monitoring, security , troubleshooting , as well as backup and data recovery .

7. Apartment Building's Security Dachshund Escorts Woman Home ...

   www.aol.com/apartment-buildings-security...

   On November 25, @aquariusgirly21, AKA D, shared a clip of the apartment building's security dog on the job. His tail-wagging attitude is as cute as can be but not as cute as his long Dachshund body!