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  2. Red Hat Certification Program - Wikipedia

    en.wikipedia.org/wiki/Red_Hat_Certification_Program

    To achieve the RHCE certification, the student must pass the RHCSA exam, EX200, and in addition EX294, a 4-hour hands-on lab exam. 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]

  3. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    Khan Academy is an American non-profit [4] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [ 5 ] The organization produces short video lessons. [ 6 ]

  4. Red Hat - Wikipedia

    en.wikipedia.org/wiki/Red_Hat

    Dogtail, an open-source automated graphical user interface (GUI) test framework initially developed by Red Hat, consists of free software released under the GNU General Public License (GPL) and is written in Python. It allows developers to build and test their applications. Red Hat announced the release of Dogtail at the 2006 Red Hat Summit ...

  5. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    This is an accepted version of this page This is the latest accepted revision, reviewed on 3 March 2025. Family of Unix-like operating systems This article is about the family of operating systems. For the kernel, see Linux kernel. For other uses, see Linux (disambiguation). Operating system Linux Tux the penguin, the mascot of Linux Developer Community contributors, Linus Torvalds Written in ...

  6. XZ Utils backdoor - Wikipedia

    en.wikipedia.org/wiki/XZ_Utils_backdoor

    The malicious mechanism consists of two compressed test files that contain the malicious binary code. These files are available in the git repository, but remain dormant unless extracted and injected into the program. [4] The code uses the glibc IFUNC mechanism to replace an existing function in OpenSSH called RSA_public_decrypt with a ...

  7. Sal Khan - Wikipedia

    en.wikipedia.org/wiki/Sal_Khan

    Salman "Sal" Amin Khan (born October 11, 1976) is an American educator and the founder of Khan Academy, a free online non-profit educational platform with which he has produced over 6,500 video lessons teaching a wide spectrum of academic subjects, originally focusing on mathematics and science. [1]

  8. Red Hat Linux - Wikipedia

    en.wikipedia.org/wiki/Red_Hat_Linux

    Early releases of Red Hat Linux were called Red Hat Commercial Linux. Red Hat published the first non-beta release in May 1995. Red Hat published the first non-beta release in May 1995. [ 3 ] [ 4 ] It included the Red Hat Package Manager as its packaging format, and over time RPM has served as the starting point for several other distributions ...

  9. Exam - Wikipedia

    en.wikipedia.org/wiki/Exam

    This is an accepted version of this page This is the latest accepted revision, reviewed on 8 March 2025. Educational assessment For other uses, see Exam (disambiguation) and Examination (disambiguation). Cambodian students taking an exam in order to apply for the Don Bosco Technical School of Sihanoukville in 2008 American students in a computer fundamentals class taking an online test in 2001 ...