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SELinux - Security-Enhanced Linux
This chapter provides introductions and tutorial on SELinux (Security-Enhanced Linux). Topics include introduction of SELinux basic concepts; User, Role, Domain, Type, Class, and Boolean; Type Enforcement policy rule syntax and database; making changes to SELiunx policy rules; using SELinux related ...
2022-10-01, ∼254🔥, 0💬

What Is LDAP
Describes what is LDAP (Lightweight Directory Access Protocol) - a communication protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network.
2022-10-01, ∼254🔥, 0💬

Conda - Environment and Package Manager
This chapter provides introductions and tutorial examples about Conda environments. Topics include installing Conda from the Miniconda package; starting/ending Conda 'base' environment; installing Conda packages.
2022-10-01, ∼254🔥, 0💬

Access Persmissions on "ntfs-3g" File System
This section provides a tutorial example on how to control access permissions on mounted Windows NTFS partitions with the 'ntfs-3g' device driver.
2022-10-01, ∼250🔥, 0💬

Process Management
This chapter provides introductions and tutorial on managing processes on Linux systems. Topics include 'ps' to display processes; 'jobs' and other commands to manage background jobs; 'tmux' tool to manage multiple shells and keep them in background.
2022-10-01, ∼249🔥, 0💬

Users and Groups
This chapter provides introductions and tutorial on user and group management. Topics include commands to add and remove groups; commands to associate users with primary and supplementary groups; commands to file group ownership and group access permissions; commands to add and delete users; run 'su...
2022-10-01, ∼248🔥, 0💬

"gzip/gunzip" - Compressed *.gz Files
This section provides a tutorial example on how to use 'gzip' and 'gunzip' commands to compress large files and restore them later. Compressed files will have the *.gz file name extension.
2022-10-01, ∼248🔥, 0💬

Install Python 2 Engine on CentOS
This section provides a tutorial example on how to install Python 2 engine to run old Python scripts and applications on CentOS systems.
2022-10-01, ∼247🔥, 0💬

What Is Conda
This section provides a quick introduction on Conda, which is a powerful open source environment and packager manager that allows you to install multiple environments for multiple versions of software packages and their dependencies and switching easily between them.
2022-10-01, ∼245🔥, 0💬

Set MySQL Server "root" Password on CentOS
This section provides a tutorial example on how to set or reset 'root' password, in case it has no password or you can not remember the password, for MySQL 8.0 server on CentOS 8 systems.
2022-10-01, ∼241🔥, 0💬

Verify Apache HTTP Server "httpd" Environment
This section provides a tutorial example on how to verify key areas of the Apache HTTP Server 'httpd' environment on Linux systems.
2022-10-01, ∼238🔥, 0💬

System Users and Groups
This section provides a tutorial example on how to add and manage system users and groups on Linux computers.
2022-10-01, ∼237🔥, 0💬

Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs.
2022-10-01, ∼235🔥, 0💬

MySQL Server File Locations on CentOS
This section provides a tutorial example on how to find and view MySQL Server file locations for MySQL 8.0 server on CentOS 8 systems.
2022-10-01, ∼232🔥, 0💬

Manage User Groups
This section provides a tutorial example on how to manage user groups. Use 'groupadd' to add new groups. Use 'usermod -g' to change user's primary group. Use 'gpasswd -a' assign supplementary group membership.
2022-10-01, ∼231🔥, 0💬

Process Management
This chapter provides introductions and tutorial on managing processes on Linux systems. Topics include 'ps' to display processes; 'jobs' and other commands to manage background jobs; 'tmux' tool to manage multiple shells and keep them in background.
2022-10-01, ∼230🔥, 0💬

Network Firewall Tools on CentOS
This section provides quick descriptions on 3 major network firewall tools, 'firewalld/firewall-cmd', 'nftables/nft', and 'iptables' on CentOS 8 systems.
2022-10-01, ∼229🔥, 0💬

"gzip/gunzip" - Compressed *.gz Files
This section provides a tutorial example on how to use 'gzip' and 'gunzip' commands to compress large files and restore them later. Compressed files will have the *.gz file name extension.
2022-10-01, ∼229🔥, 0💬

"uname" - Display System Information
This section provides a tutorial example on how to display operating system information using the 'uname' command on Linux systems.
2022-10-01, ∼227🔥, 0💬

Running PHP Scripts on Linux Systems
This chapter provides introductions and tutorial examples about running PHP scripts on Linux systems. Topics include installing PHP engine on CentOS Linux systems; installing missing PHP modules; dumping PHP environment info; 'include' statements.
2022-10-01, ∼225🔥, 0💬

"find" - Search for Files
This section provides a tutorial example on how to use 'find' command to search for files in a directory tree. '-name' and '-size' are 2 commonly used search conditions.
2022-10-01, ∼224🔥, 0💬

Files Used in PHP "include" Statements
This section provides a tutorial example on how to the PHP engine search for files given in the 'include' statements.
2022-10-01, ∼219🔥, 0💬

"ps" - Display Current Processes
This section provides a tutorial example on how to use 'ps' command to display current process on the system.
2022-10-01, ∼218🔥, 0💬

Change PHP Configuration Settings
This section provides a tutorial example on how to change PHP configuration settings, like increasing upload_max_filesize and post_max_size to upload large files with PHP scripts.
2022-10-01, ∼217🔥, 0💬

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