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Internet Networking Tools
This chapter provides introductions and tutorial examples about Internet networking tools. Topics include 'wget' to download Web files; 'curl' to send requests to URLs. 2023-05-23, ∼265🔥, 0💬

What Is Cockpit
This section provides a quick introduction of what is Cockpit, a Web portal for Linux system administration. 2022-10-01, ∼265🔥, 0💬

What Is OpenLDAP
Describes what is OpenLDAP - an open source implementation of the LDAP (LightweightDirectory Access Protocol). 2022-10-01, ∼265🔥, 0💬

Introduction to Linux Systems
This chapter provides introductions and tutorial on Linux operating systems. Topics include 'uname' to display operating system information. 2022-10-01, ∼265🔥, 0💬

Install and Manage Python Engine on CentOS
This section provides a tutorial example on how to install Python 3.6 on CentOS 8 systems using 'dnf/yum' as the package manager. 2022-10-01, ∼265🔥, 0💬

Unreachable Remote File Systems
This section provides a tutorial example on how to resolve the unreachable remote file system problem, which causes all related commands to hang, using the lazy un-mount command 'umount -l'. 2022-10-01, ∼262🔥, 0💬

Introduction to Conda Environment
This section provides a quick introduction about the Conda environment, its file directories and command programs. Steps to verify its Python version, and install new packages. 2022-10-01, ∼262🔥, 0💬

vsftpd - Very Secure FTP Daemon
This chapter provides introductions and tutorial examples about 'vsftpd' - Very Secure FTP Daemon. Topics include installing vsftpd; configuring vsftpd for local user access; testing FTP access locally and remotely; enabling FTP over SSL/TLS to secure connections. 2022-10-01, ∼261🔥, 0💬

"free" - Display Free and Used Memory
This section provides a tutorial example on how to display free and used memory information using the 'free' command on Linux systems. 2022-10-01, ∼260🔥, 0💬

Administrative Tasks
This chapter provides introductions and tutorial on Linux administrative task. Topics include shutting down and restarting system, moving /home to new partition, moving all users to a new system. 2022-10-01, ∼260🔥, 0💬

"iptables" Command on CentOS
This section provides a tutorial example on how to use 'iptables' daemon CLI to manage network firewall on older CentOS systems. 2022-10-01, ∼259🔥, 0💬

Layers of Memory and Access Speed
This section describes layers of memory: CPU Register, CPU Caches, RAM and hard disk. 2024-08-17, ∼258🔥, 0💬

Files and Directories
This chapter provides introductions and tutorial on file and directory management. Topics include commands to search and find files, read text files in different ways, split, join and truncate files, compress and restore files, archive and extract filesm. 2022-10-01, ∼256🔥, 0💬

Memory Management
This chapter provides introductions and tutorial notes on memory management. Topics include memory layers and access speed; cache memory levels; virtual memory and physical memory mapping; page table; buffers, caches and swap spaces; memory usage reporting tools: free, ps, smem, pmap, /proc/meminfo,... 2024-08-17, ∼255🔥, 0💬

Listen to Non-Standard Ports with Apache
This section provides a tutorial example on how to add virtual hosts to listen to additional ports other than standard ports (80 and 443) with and without systemd Socket Activation service. 2024-04-12, ∼255🔥, 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, ∼255🔥, 0💬

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💬

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💬

Disable SSH Access for FTP Users
This section provides a tutorial example on how to disable SSH login access of a user on CentOS systems and allow his/her to use FTP service only for upload and download files. 2024-01-03, ∼248🔥, 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💬

<< < 1 2 3 4 5 6 7 8 9 10 11 … > >>   ∑:379  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO