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SquirrelMail - Webmail in PHP
This chapter provides introductions and tutorial on SquirrelMail Webmail. Topics include installing and configuring SquirrelMail on CentOS systems; accessing mail server on local network; accepting self-signed certificate; using secure IMAPS and SMTPS ports 993 and 465. 2023-06-14, ∼225🔥, 0💬

Common Issues on Running Tomcat
This section provides some examples of issues on running Apache Tomcat on Linux systems. 2024-04-12, ∼223🔥, 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, ∼223🔥, 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, ∼222🔥, 0💬

Running Apache Tomcat on Linux Systems
This chapter provides introductions and tutorial on Apache Tomcat server for Linux systems. Topics include installing Apache Tomcat; starting/stopping Tomcat; opening firewall for port 80; configuring SSL/TLS for HTTPS connections. 2024-04-12, ∼221🔥, 0💬

Migrate Old Scripts to New PHP Release
This section provides a tutorial example on how to migrate old PHP scripts to PHP new releases. 2022-10-01, ∼219🔥, 0💬

Web Server Certificate and Required Fields
This section provides information on how to obtain a Web server certificate and verify its required fields. An example of server certificate is also provided. 2024-04-12, ∼216🔥, 0💬

First Java Program - Hello.java
This section provides a tutorial example on how to write, compile, and execute the first Java program, Hello.java, with OpenJDK. 2024-04-12, ∼215🔥, 0💬

SquirrelMail Configuration for QQ Mail
This section provides a tutorial example on how to clone and configure a SquirrelMail Webmail site to access QQ mail server with secure protocols: IMAPS and SMTPS. 2023-05-27, ∼214🔥, 0💬

SquirrelMail Configuration on CentOS
This section provides a tutorial example on how to configure SquirrelMail on CentOS to integrate with localhost Postfix and Dovecot servers. 2023-05-27, ∼214🔥, 0💬

Reset Host Name on Linux Systems
This section provides a tutorial example on how to view and change host name settings on Linux systems. 2023-05-27, ∼214🔥, 0💬

"wget" - Get Files from the Web
This section provides a tutorial example on how to use 'wget' command to download files from the Web. 'wget' can resume failed downloads. 2023-05-23, ∼214🔥, 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, ∼212🔥, 0💬

SquirrelMail for Mail Server on Local Network
This section provides a tutorial example on how to configure a SquirrelMail Webmail site to access a remote mail server on the local network. 2023-06-01, ∼211🔥, 0💬

Verify Cache Memory with "cp" Command
This section provides a tutorial example to verify the cache memory usage in the RAM free space using a single 'cp' command. 2024-08-17, ∼208🔥, 0💬

"systemctl status/start/stop/enable/disable" Commands
This section provides a quick introduction of the 'systemctl' command, which allows you to start or stop a system service, check the status of a service, and enable or disable a service at the boot time. 2025-12-29, ∼206🔥, 0💬

Provide Self Signed Certificate to SquirrelMail
This section provides a tutorial example on how to provide download self-signed certificate from mail server and provide it SquirrelMail as a trusted certificate to resolve the invalid certificate error. 2023-05-27, ∼203🔥, 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, ∼203🔥, 0💬

"apt list" - List Software Packages
This section provides a tutorial example on how to use the 'apt list' command to display software packages installed or available for Ubuntu computer. 2025-12-29, ∼200🔥, 0💬

What Is Apache Tomcat
This section provides a quick introduction of Apache Tomcat, a Java application server, or as a Java servlet container. 2024-04-12, ∼196🔥, 0💬

SquirrelMail Configuration for IMAPS Port 993
This section provides a tutorial example on how to configure a SquirrelMail Webmail site to use the secure IMAPS port 993 to retrieve emails from a mail server on the local network. 2023-05-27, ∼196🔥, 0💬

SquirrelMail Webmail Installation on CentOS
This section provides a tutorial example on how to install SquirrelMail on CentOS computers as a Web-based email client tool. 2023-05-29, ∼194🔥, 0💬

Setup FTP Sub-Directory for Local Users
This section provides a tutorial example on how to setup 'ftp' sub-directory for local users and allow them upload and download files using vsftpd on CentOS systems. 2024-01-03, ∼190🔥, 0💬

Install Apache Tomcat on Linux
This section provides a tutorial example on how to install Apache Tomcat on Linux systems. 2024-04-12, ∼189🔥, 0💬

<< < … 5 6 7 8 9 10 11 12 13 14 15 … > >>   ∑: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