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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, ∼229🔥, 0💬

Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs. 2022-10-01, ∼228🔥, 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, ∼227🔥, 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, ∼227🔥, 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, ∼226🔥, 0💬

"compress/uncompress" - Compressed *.Z Files
This section provides a tutorial example on how to use 'compress' and 'uncompress' commands to compress large files and restore them later. Compressed files will have the *.Z file name extension. 2022-10-01, ∼226🔥, 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, ∼225🔥, 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, ∼225🔥, 0💬

vsftpd Server Configuration
This section provides a tutorial example on how to configure vsftpd server to allow some local users to upload and download files in their own private Directories with FTP client programs. 2024-01-03, ∼224🔥, 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, ∼222🔥, 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, ∼222🔥, 0💬

"tar -c" and "tar -x" - Create and Extract Archive Files
This section provides a tutorial example on how to use 'tar -c' command to compress multiple file and sub-directories into an archive file and use 'tar -x' command to extract files out of an archive file. 2022-10-01, ∼222🔥, 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, ∼221🔥, 0💬

"sudo" Command and Privilege
This section provides a tutorial example on how to grant 'sudo' privilege to a user to allow him/her to run 'sudo' command to gain 'root' permission without login as 'root'. 2022-10-01, ∼220🔥, 0💬

"last/lastb" - Review Login History
This section provides a quick introduction of the 'last' and 'lastb' commands, which allows you to review login history and login attempts. 2023-12-28, ∼219🔥, 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, ∼218🔥, 0💬

What Is Apache HTTP Server "httpd"
This section provides a quick introduction of Apache HTTP Server, also referred as HTTP daemon or httpd. 2024-04-12, ∼217🔥, 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, ∼215🔥, 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, ∼215🔥, 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, ∼215🔥, 0💬

Apache Configuration for HTTPS Protocol
This section provides a tutorial example on how to install Web server certificates and configure Apache HTTP Server to support the HTTPS protocol. 2024-04-12, ∼214🔥, 0💬

"apachectl status/start/stop" Commands
This section provides a tutorial example on how to use 'sudo apachectl *' commands to control the Apache HTTP Server, httpd. 2023-05-29, ∼214🔥, 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, ∼214🔥, 0💬

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, ∼212🔥, 0💬

<< < … 4 5 6 7 8 9 10 11 12 13 14 … > >>   ∑: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