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"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, ∼197🔥, 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, ∼196🔥, 0💬

Postfix - Mail Transport Agent (MTA)
This chapter provides introductions and tutorial examples about Postfix - Mail Transport Agent (MTA). Topics include installing, configuring, and starting Postfix; testing Postfix using STMP commands with 'telnet'; turn on 'SMTP Submission' and 'SMTPS' services; using 'postconf' command. 2022-10-01, ∼195🔥, 0💬

What Is RPM
This section provides a quick introduction on RPM (RedHat Package Manager), which is a free and open packaging system on Red Hat Enterprise Linux as well as other Linux and UNIX systems. 2022-10-01, ∼195🔥, 0💬

Enable Remote Access to "httpd" Service
This section provides a tutorial example on how to enable remote access Web pages served by the 'httpd' service by opening the firewall for 'http' service default port 80. 2023-06-22, ∼193🔥, 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, ∼193🔥, 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, ∼193🔥, 0💬

SSL/TLS Support on Tomcat 8 or Older
This section provides a tutorial example on how to configure Tomcat 8 or older to support SSL/TLS for the HTTPS service. 2024-04-12, ∼192🔥, 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, ∼192🔥, 0💬

MySQL Server Data Backups on CentOS
This section provides a tutorial example on how to create backups of MySQL databases and load it back to another MySQL server for MySQL 8.0 server on CentOS 8 systems. 2022-10-01, ∼189🔥, 0💬

Performance Comparison of Inserting Integers vs. Strings
This section provides a tutorial example on how to check performance comparison between inserting integers and inserting strings to MySQL database. 2022-10-01, ∼189🔥, 0💬

Thunderbird Configuratin for SMTPS Service
This section provides a tutorial example on how to configure Thunderbird use SMTPS (SMTP with SSL/TLS) service to securely sending out new emails. 2022-10-01, ∼187🔥, 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, ∼186🔥, 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, ∼185🔥, 0💬

Virtual Memory vs. Physical Memory
This section describes virtual memory, which is mapped to physical memory through MMU (Memory Management Unit). 2024-08-17, ∼184🔥, 0💬

"du" - Display Disk Usage of Directories
This section provides a tutorial example on how to use 'du' command to display disk usage of any given directories on Linux systems. 2022-10-01, ∼184🔥, 0💬

"df" - Display Free Space of File System
This section provides a tutorial example on how to use 'df' command to display free spaces of mounted file systems on Linux systems. 2022-10-01, ∼183🔥, 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, ∼181🔥, 0💬

Add Users and Groups Manually
This section provides a tutorial example on how to add users and groups manually on Linux computers. 2022-10-01, ∼181🔥, 0💬

Start/Stop Apache Tomcat
This section provides a tutorial example on how to start and stop Apache Tomcat on Linux systems. 2024-04-12, ∼180🔥, 0💬

"jobs" - Manage Background Jobs
This section provides a tutorial example on how to use 'jobs' command to display background jobs, which are processes with input detached the keyboard. You can start a background job by adding the 'ampersand' sign to the end of the commmad. 2022-10-01, ∼180🔥, 0💬

Install Apache HTTP Server "httpd"
This section provides a tutorial example on how to install Apache HTTP Server 'httpd' on CentOS 8 systems. 2023-05-29, ∼179🔥, 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, ∼178🔥, 0💬

/proc/{id}/smaps - Process Memory Map Details
This section describes the pseudo file '/proc/{id}/smaps' that represents virtual memory map of a given process with detailed information on each mapped area. 2024-08-17, ∼176🔥, 0💬

<< < … 3 4 5 6 7 8 9 10 11 12 13 > >>   ∑:297  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 Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO