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Tecmint: Linux Howtos, Tutorials & Guides
  • Learn Linux
  • Linux Distros
    • Linux Distros for Beginners
    • Linux Distros for Experts
    • New Linux Distros
    • Linux Server Distros
    • Secure Linux Distros
    • CentOS Alternatives
    • RedHat Distributions
    • Debian Distributions
    • Ubuntu Distributions
    • Arch Linux Distros
    • Rolling Linux Distros
    • KDE Linux Distros
    • Linux Distros for Old PC
    • Linux Distros for Kids
    • Linux Distributions for Students
    • Linux Distros for Windows
  • Commands
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    • 100+ Linux Commands
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    • RHCE Certification
    • LFCS Certification
  • eBooks
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    • Ansible Exam
  • About
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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 Commands and Tools

How to Fix “rm: cannot remove ‘file’: Device or Resource Busy” in Linux

Exodus – Safely Copy Linux Binaries From One Linux System to Another

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

How to Find a Process Name Using PID Number in Linux

How to Use sed and awk to Modify Config Files in Linux

13 Practical Examples of Using the Gzip Command in Linux

Linux Server Monitoring Tools

How to Install Cacti with Cacti-Spine in Debian and Ubuntu

Psensor – Monitor Linux Hardware Temperature [Motherboard and CPU]

How to Set Priority of a Running Process in Linux

4 Useful Commandline Tools to Monitor MySQL Performance in Linux

How to Install Tripwire IDS (Intrusion Detection System) on Linux

pyDash – A Web Based Linux Performance Monitoring Tool

Learn Linux Tricks & Tips

Find Top 15 Processes by Memory Usage with ‘top’ in Batch Mode

Fd – The Best Alternative to ‘Find’ Command for Quick File Searching

How to Encrypt and Decrypt Files and Directories Using Tar and OpenSSL

5 Ways to Empty or Delete a Large File Content in Linux

Linux Tricks: Play Game in Chrome, Text-to-Speech, Schedule a Job and Watch Commands in Linux

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

Best Linux Tools

10 Best PuTTY Alternatives for SSH Remote Connection

13 Most Used Microsoft Office Alternatives for Linux

3 Must-Have Break Apps for Linux Users (If You Work 8–9 Hours a Day)

9 Best Free UPnP and DLNA Servers for Linux in 2024

5 Best Mathematical Equation and Formula Writing Tools for Linux

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

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