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Questions and answers categorized in: Cybersecurity > EITC/IS/LSA Linux System Administration > Advanced sysadmin in Linux

What command can you use to search for a specific word or phrase in Vim?

Saturday, 05 August 2023 by EITCA Academy

In the field of Linux system administration, specifically in relation to Vim, a powerful text editor commonly used in cybersecurity, there is a command that allows users to search for a specific word or phrase. This command is known as "/". By utilizing the "/" command, users can efficiently search for a desired word or

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, Vim basics, Examination review
Tagged under: Command, Cybersecurity, Linux, Search, Text Editor, Vim

How do you undo your last action in Vim?

Saturday, 05 August 2023 by EITCA Academy

To undo your last action in Vim, you can use the "u" command. Vim provides a powerful and efficient way to undo and redo changes, allowing you to easily correct mistakes or revert unwanted modifications in your text files. The "u" command stands for "undo" and is a fundamental feature of Vim's editing capabilities. When

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, Vim basics, Examination review
Tagged under: Command Line, Cybersecurity, Linux, Text Editing, Undo, Vim

How can you delete a line in Vim?

Saturday, 05 August 2023 by EITCA Academy

To delete a line in Vim, you can use a combination of commands and motions. Vim is a powerful text editor commonly used in Linux system administration for its efficiency and versatility. Deleting a line can be done in several ways, depending on the specific requirements and preferences of the user. One of the simplest

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, Vim basics, Examination review
Tagged under: Command Line, Cybersecurity, Linux, Text Editing, Text Manipulation, Vim

What command can you use to enable line numbering in Vim?

Saturday, 05 August 2023 by EITCA Academy

To enable line numbering in Vim, you can make use of the ":set number" command. Vim is a widely used text editor in the Linux environment, known for its versatility and powerful features. By enabling line numbering, you can easily navigate through your code or text files, making it easier to reference specific lines and

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, Vim basics, Examination review
Tagged under: Cybersecurity, Line Numbering, Linux, System Administration, Text Editor, Vim

How do you exit Vim without saving any changes to the file?

Saturday, 05 August 2023 by EITCA Academy

To exit Vim without saving any changes to the file, you can use the appropriate commands within the Vim text editor. Vim is a powerful and widely used text editor in the Linux environment, known for its extensive features and flexibility. When working with Vim, it is important to understand the various modes and commands

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, Vim basics, Examination review
Tagged under: Command Mode, Cybersecurity, Linux, Quitting Vim, Text Editor, Vim

What are some recommended steps to take when connecting to MySQL/MariaDB to ensure secure authentication and access to the database?

Saturday, 05 August 2023 by EITCA Academy

To ensure secure authentication and access to a MySQL/MariaDB database, there are several recommended steps that can be taken. These steps help protect the confidentiality, integrity, and availability of the database and its data. In this answer, we will discuss these steps in detail, providing a comprehensive explanation of each one. 1. Use Strong Passwords:

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, MySQL/MariaDB basics, Examination review
Tagged under: Access Control, Authentication, Cybersecurity, MariaDB, MySQL, Security

How can you change the default port on which MySQL/MariaDB runs and update the firewall rules accordingly?

Saturday, 05 August 2023 by EITCA Academy

To change the default port on which MySQL/MariaDB runs and update the firewall rules accordingly, you need to perform a series of steps that involve modifying the configuration file, restarting the service, and adjusting the firewall settings. In this answer, we will provide a detailed and comprehensive explanation of the process to help you understand

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, MySQL/MariaDB basics, Examination review
Tagged under: Cybersecurity, Firewall, Linux, MariaDB, MySQL, System Administration

Where can you find the log files for MySQL/MariaDB in a Linux system?

Saturday, 05 August 2023 by EITCA Academy

In a Linux system, the log files for MySQL/MariaDB can be found in specific locations depending on the distribution and configuration of the system. These log files play a important role in monitoring and troubleshooting the database server, providing valuable insights into the system's activities, errors, and performance. Understanding the location of these log files

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, MySQL/MariaDB basics, Examination review
Tagged under: Cybersecurity, Linux, Log Files, MariaDB, MySQL

How can you check the status of the MariaDB service and ensure it is active?

Saturday, 05 August 2023 by EITCA Academy

To check the status of the MariaDB service and ensure it is active, you can use various commands and methods available in Linux. MariaDB is an open-source relational database management system and a popular alternative to MySQL. As a Linux system administrator, it is important to monitor the status of services like MariaDB to ensure

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, MySQL/MariaDB basics, Examination review
Tagged under: Cybersecurity, Linux, MariaDB, Netstat, Service, Systemctl

What are the steps involved in securing a Linux system running MySQL/MariaDB?

Saturday, 05 August 2023 by EITCA Academy

Securing a Linux system running MySQL/MariaDB involves a series of steps to protect the system from potential threats and ensure the confidentiality, integrity, and availability of the data stored in the database. In this comprehensive answer, we will discuss the key steps involved in securing a Linux system running MySQL/MariaDB, providing a detailed explanation of

  • Published in Cybersecurity, EITC/IS/LSA Linux System Administration, Advanced sysadmin in Linux, MySQL/MariaDB basics, Examination review
Tagged under: Access Control, Cybersecurity, Linux Security, MariaDB Security, MySQL Security, System Hardening
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