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Tecmint: Linux Howtos, Tutorials & Guides
  • Learn Linux
  • Linux Distros
    • Linux Distros for Beginners
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    • New Linux Distros
    • Linux Server Distros
    • Secure Linux Distros
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    • Rolling Linux Distros
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    • Linux Distributions for Students
    • Linux Distros for Windows
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Security

Install Security Updates in Ubuntu

How to Install Security Updates in Ubuntu

One of the easiest ways to protect your Ubuntu systems is by keeping up to date software on them. Therefore

Install Mod_Security Mod_Evasive in CentOS

Protect Apache Against Brute Force or DDoS Attacks Using Mod_Security and Mod_evasive Modules

For those of you in the hosting business, or if you’re hosting your own servers and exposing them to the

Install Linux Malware Detect in Linux

How to Install and Use Linux Malware Detect (LMD) with ClamAV as Antivirus Engine

Malware, or malicious software, is the designation given to any program that aims at disrupting the normal operation of a

CentOS Server Hardening Security Tips

23 CentOS Server Hardening Security Tips – Part 2

Continuing the previous tutorial on How to Secure and Harden CentOS server, in this article, we’ll discuss other security tips

CentOS Server Hardening Security Tips

20 CentOS Server Hardening Security Tips – Part 1

This tutorial only covers general security tips for CentOS 8/7 which can be used to harden the system. The checklist

Install Security Updates on CentOS 8

How to Install Security Updates on CentOS 8

Keeping your Linux system up-to-date is a very critical task, especially when it comes to installing security updates. This ensures

FirewallD Command Examples

How to Restrict Network Access Using FirewallD

As a Linux user, you can opt either to allow or restrict network access to some services or IP addresses

Increase SSH Connection Timeout

How to Increase SSH Connection Timeout in Linux

SSH timeouts as a result of inactivity can be quite irritating. This usually compels you to reinitiate the connection and

Secure OpenSSH Server

How to Secure and Harden OpenSSH Server

When it comes to accessing remote devices such as servers, routers, and switches, SSH protocol comes highly recommended given its

Create a Local Self-Signed SSL Certificate

How to Create a Local Self-Signed SSL Certificate on CentOS 8

SSL (Secure Socket Layer), and its improved version, TLS (Transport Socket Layer), are security protocols that are used to secure

dnf-automatic - Auto Install Updates on CentOS 8

dnf-automatic – Install Security Updates Automatically in CentOS 8

Security updates play a crucial role in safeguarding your Linux system against cyber-attacks and breaches which can have a devastating

Secure Nginx with Let’s Encrypt on CentOS 8

How to Secure Nginx with Let’s Encrypt on CentOS 8

Founded in April 2016 by the Electronic Frontier Foundation (EFF), Let’s Encrypt is a free and automated digital certificate that

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Linux Commands and Tools

tuptime – Tracks Your Linux System’s Past and Future Uptime

How to Detect Bad Sectors or Bad Blocks on Linux Hard Drives

How to Create a Systemd Service in Linux

5 ‘stat’ Command Examples for Linux Newbies

How to Download Files to Specific Directory Using Wget

How to Install tar in CentOS, RHEL, and Fedora

Linux Server Monitoring Tools

Install OpenNMS Network Monitoring in Debian and Ubuntu

Watchman – A File and Directory Watching Tool for Changes

4 Ways to Watch or Monitor Log Files in Real Time

CBM – Shows Network Bandwidth in Ubuntu

9 Useful Commands to Get CPU Information on Linux

ngrep – A Network Packet Analyzer for Linux

Learn Linux Tricks & Tips

Display Command Output or File Contents in Column Format

How to Save Command Output to a File in Linux

How to Boot into Single User Mode in CentOS/RHEL 7

12 Useful Commands For Filtering Text for Effective File Operations in Linux

How to Set or Change System Hostname in Linux

Learn Why ‘less’ is Faster Than ‘more’ Command for Effective File Navigation

Best Linux Tools

8 Best Open Source Web Servers in 2024

Top 5 Diagram Tools for Linux Users in 2025 (Free & Open-Source)

11 Best Free and Low-Cost SSL Certificate Authorities

5 Best Platforms for Hosting Your Web Projects in 2024

Top 6 Command Line Music Players for Linux Users

6 Best Linux Boot Loaders

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