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"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, ∼306🔥, 0💬

Move All Users to a New System
This section provides a tutorial example on how to move all users to a new Linux system. 2022-10-01, ∼306🔥, 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, ∼302🔥, 0💬

Upgrade OpenJDK on CentOS
This section provides a tutorial example on how to upgrade OpenJDK on CentOS 8 systems using package manager 'dnf/yum' and symbolic link manager 'update-alternatives' symbolic links for 'java/javac' command. 2024-04-12, ∼301🔥, 0💬

smem - Process Memory Usage Report
This section provides a tutorial on how to install 'smem' and use it to report memory usage of each running process. 2024-08-17, ∼300🔥, 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, ∼299🔥, 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, ∼297🔥, 0💬

Test FTP Access Remotely on CentOS
This section provides a tutorial example on how to update firewall on the vsftpd server (and its firewall gateway if it is served in the cloud) to open ports 21 and 30000-31000 for inbound connections. 2024-01-03, ∼296🔥, 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, ∼296🔥, 0💬

SquirrelMail Configuration for SMTPS Port 465
This section provides a tutorial example on how to configure a SquirrelMail Webmail site to use the secure SMTPS port 465 to send out emails through a mail server on a local network. 2023-07-10, ∼295🔥, 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, ∼295🔥, 0💬

Performance of Inserting Integers to MySQL Database
This section provides a tutorial example on how to test the performance of inserting integers into MySQL server database using PHP 'mysqli' functions. MySQL server is 100 times slower on my CentOS computer and macOS computer. 2022-10-01, ∼292🔥, 0💬

Common Issues with Apache HTTPS Support
This section provides examples of some common issues related to HTTPS support on Apache HTTP Server. 2024-04-12, ∼291🔥, 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, ∼290🔥, 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, ∼288🔥, 0💬

"xz/unxz" - Compressed *.xz or *.lzma Files
This section provides a tutorial example on how to use 'xz' and 'unxz' commands to compress large files and restore them later. Compressed files will have the *.xz file name extension. 2022-10-01, ∼285🔥, 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, ∼282🔥, 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, ∼282🔥, 0💬

"more", "head" and "cat" - Read Files
This section provides a tutorial example on how to use 'more', 'head' or 'tail' commands to read text files one screen at a time, to read the first 10 lines, or to read the last 10 lines. 2022-10-01, ∼281🔥, 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, ∼281🔥, 0💬

SSH Protocol and ssh/scp Commands
This chapter provides introductions and tutorial notes on SSH (Secure SHell) protocol and 'ssh/scp' commands. Topics include SSH connection steps; user password and public key authentication methods; SSH server configuration settings; 'ssh' for remote login sessions; 'scp' for copying remote files. 2023-12-26, ∼280🔥, 0💬

"zip" and "unzip" - Create and Extract ZIP Files
This section provides a tutorial example on how to use 'zip' command to compress multiple file and sub-directories into a ZIP file and use 'unzip' command to extract files out of a ZIP file. 2022-10-01, ∼280🔥, 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, ∼280🔥, 0💬

What Is YUM
This section provides a quick introduction on YUM (Yellowdog Update Modified), which is a software package manager for RPM (RedHat Package Manager) based Linux distributions. 2022-10-01, ∼279🔥, 0💬

<< < … 3 4 5 6 7 8 9 10 11 12 13 … > >>   ∑: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