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Tecmint: Linux Howtos, Tutorials & Guides
  • Latest Tutorials
  • Commands
    • A – Z Linux Commands
    • 100+ Linux Commands
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    • Linux Distros for Beginners
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    • Debian Distributions
    • Ubuntu Distributions
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Security

Scan Linux for Malware and Rootkits

5 Tools to Scan a Linux Server for Malware and Rootkits

There are constant levels of high attacks and port scans on Linux servers all the time, while a properly configured

Lock User Accounts Failed Logins in Linux

How to Lock and Unlock User After Failed SSH Logins

SSH security is a top priority when setting up your server. The default SSH settings are usually not robust enough

Install Tor Browser in Linux

Tor Browser – How to Browse Web Anonymously in Linux

The primary application we require to perform our internet activity is a browser, a web browser to be more perfect

How to Access a Remote Server Using a SSH Jump Host

A jump host (also known as a jump server) is an intermediary host or an SSH gateway to a remote

Remove Passphrase in Linux

How To Remove SSL Certificate and SSH Key Passphrase in Linux

Brief: Have you created a certificate key or private key with a passphrase and wish to remove it? In this

Prevent SSH Brute-Force Login Attacks in Linux

5 Best Practices to Prevent SSH Brute-Force Login Attacks in Linux

Servers running SSH are usually a soft target for brute-force attacks. Hackers are constantly coming up with innovative software tools

SSH Banner Warning Message

How to Show Security Warning Message to SSH Unauthorized Users

SSH banner warnings are crucial when companies or organizations want to show a strict warning message to discourage unauthorized users

Install Suricata Intrusion Detection Tool in Linux

Suricata – A Intrusion Detection, Prevention, and Security Tool

Suricata is a powerful, versatile, and open-source threat detection engine that provides functionalities for intrusion detection (IDS), intrusion prevention (IPS),

Set Correct SSH Directory Permissions in Linux

How To Set Correct SSH Directory Permissions in Linux

For SSH to work well, it requires correct permissions on the ~/.ssh or /home/username/.ssh directory: the default location for all

Linux PHP Hardening Security Tips

Top PHP Hardening Security Tips for Linux Servers

It’s no brainier that PHP is one of the most used server scripting programming languages. It makes sense for an

Block SSH Brute Force in Linux

How to Block SSH Brute Force Attacks Using SSHGUARD

SSHGuard is an open-source daemon that shields hosts from brute-force attacks. It accomplishes this through monitoring and aggregation of system

Set SSH Warning Banner in Linux

How to Set a Custom SSH Warning Banner and MOTD in Linux

SSH banner warnings are necessary when companies or organizations want to display a stern warning to discourage unauthorized parties from

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Linux Server Monitoring Tools

Configure Collectd as a Central Monitoring Server for Clients

How to Monitor Docker Containers with Zabbix Monitoring Tool

A Shell Script to Send Email Alert When Memory Gets Low

Linfo – Shows Linux Server Health Status in Real-Time

How to Limit Time and Memory Usage of Processes in Linux

rtop – An Interactive Tool to Monitor Remote Linux Server Over SSH

Learn Linux Tricks & Tips

How to Add New Disks Using LVM to an Existing Linux System

How to Disable SELinux Temporarily or Permanently

15 Useful “ifconfig” Commands to Configure Network Interface in Linux

40+ Linux Commands for a Better Machine Learning Workflow

How to Find and Remove Duplicate/Unwanted Files in Linux Using ‘FSlint’ Tool

Install Linux from USB Device or Boot into Live Mode Using Unetbootin and dd Command

Best Linux Tools

16 Best Notepad++ Alternatives for Linux in 2025

10 Best File Comparison and Difference (Diff) Tools for Linux

6 Best Modern Linux ‘init’ Systems (1992-2025)

Top 6 Linux Apps You Should Install This Week (Sept 15-21)

21 Best Slack Alternatives for Team Chat [Free & Paid]

5 Best PDF Page Cropping Tools For Linux

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