Skip to content
LinuxLinks

LinuxLinks

The Linux Portal Site

  • Home
  • Software
  • Hardware
  • Reviews
  • Series
  • Search

Category: Security

Security

iptables – configure the Linux kernel and later packet filtering ruleset

February 26, 2026 Steve Emms Security

iptables is a user space application program that allows a system administrator to configure the Netfilter tables, chains, and rules.

Read more
Security

ufw – manages a netfilter firewall

February 26, 2026 Steve Emms Security

ufw stands for Uncomplicated Firewall. This is software for managing a netfilter firewall.

Read more
Security

Shorewall – gateway/firewall configuration tool

February 26, 2026 Steve Emms Security

The Shoreline Firewall, more commonly known as “Shorewall”, is an open source firewall tool that builds upon the Netfilter.

Read more
Security

gufw – manage your firewall

February 26, 2026 Steve Emms Security

gufw is a graphical user interface for Ubuntu’s Uncomplicated Firewall.

Read more
Security

Vuurmuur – powerful firewall manager built on top of ​iptables

February 26, 2026 Steve Emms Security

Vuurmuur is a powerful firewall manager built on top of iptables on Linux. It has a simple and easy to learn configuration that allows simple and complex configurations.

Read more
Security

Exosphere – aggregated patch and security update reporting

February 24, 2026 Steve Emms CLI, Security, TUI

Exosphere is a CLI and Text UI driven application that offers aggregated patch and security update reporting.

Read more
Security

cariddi – scanning tool

February 23, 2026 Steve Emms CLI, Security

Take a list of domains, crawl urls and scan for endpoints, secrets, api keys, file extensions, tokens and more.

Read more
Anti-Malware Tools

YARA-X – re-incarnation of YARA

February 21, 2026 Steve Emms CLI, Security

YARA-X is a re-incarnation of YARA, a pattern matching tool designed with malware researchers in mind.

Read more
Security

Kanha – web-app pentesting suite

February 21, 2026 Steve Emms CLI, Security

With kanha you can do Fuzzing, Reverse dns lookup, common http response, subdomain takeover detection and many more.

Read more
Security

PRS – web security scanner

February 20, 2026 Steve Emms CLI, Security

PRS is a CLI-based scanner focused on safe assessment of web targets.

Read more
Encrypted Files

rsecure – AES-GCM file encryption and decryption tool

February 19, 2026 Steve Emms CLI, Security

rsecure is a command-line tool for AES-GCM file encryption and decryption. Aimed at protecting sensitive files, backups, and personal data.

Read more
Technology

14 Best Free and Open Source Steganography Tools

February 18, 2026 Steve Emms Roundup, Security

Conceal messages in other messages.

Read more
Security

Envy – manage secrets

February 12, 2026 Steve Emms CLI, Security, TUI

Envy is a single binary that gives you both a slick TUI for browsing secrets and a CLI for automation.

Read more
Security

Chamber – secrets manager

February 11, 2026 Steve Emms Security, TUI

Chamber is a secure, local-first secrets manager, featuring encrypted storage, intuitive terminal UI, and import/export capabilities.

Read more
Technology

Rooks – steganographic tool

February 8, 2026 Steve Emms CLI, Security

Rook Stego is a steganographic tool that implements some of the most advanced hiding methods.

Read more
Intrusion Detection

9 Best Free and Open Source Host-Based Intrusion Detection Systems

February 6, 2026 Steve Emms Roundup, Security

An intrusion detection system is a device or software application that monitors a network or systems for malicious activity or policy violations.

Read more
Security

6 Best Free and Open Source Web Application Firewalls

January 30, 2026 Steve Emms Roundup, Security, System Software

A web application firewall (WAF) is a type of application firewall that lets you see and analyze HTTP traffic to and from a web application. We recommend our favourite WAFs.

Read more
Passive OS Fingerprinting

5 Best Free and Open Source Passive OS Fingerprinting Tools

January 28, 2026 Steve Emms Roundup, Security

Passive OS Fingerprinting Tools rely on sniffing techniques to analyze the information sent in normal network traffic.

Read more
Intrusion Prevention - SSH

ConfigServer Security & Firewall – front-end to iptables or nftables

January 23, 2026 Steve Emms Internet, Security

ConfigServer Security & Firewall (CSF) is a Stateful Packet Inspection (SPI) firewall and Login/Intrusion Detection and Security application.

Read more
Security

sif – pentesting (recon/exploitation) suite

January 14, 2026 Steve Emms CLI, Security

sif is designed to be fast, concurrent, and extensible. Run multiple scan types against targets with a single command.

Read more

Posts pagination

«Previous Posts 1 2 3 4 … 17 Next Posts»

Best Free Software

Document Management Systems
Documents
Web Browsers
Internet
Education
Education
Internet Radio
Audio
YouTube Tools
Video
Paint Palette
Graphics
System Administration
Admin
Docks
Desktop
Productivity
Productivity
Genome Browsers - Web Based
Science
Games
Games
Vulnerability detection
Security
Replacements for du
Utilities
Object Relational Mapping
Coding
Stockmarket
Finance
Web Delivery
Web Apps
Crafting
Other
Programming Books
Books

Data Science

Data ScienceTake our free interactive courses in data science. There are courses for Python using pandas and plotnine and R using ggplot2.

Get up to speed in 20 minutes. No programming knowledge is required.

Recent Comments

  • Steve Emms on vimalender – terminal calendar application with vim-style keybindings
  • LNX on vimalender – terminal calendar application with vim-style keybindings
  • GordoFep on Alternatives to popular CLI tools: Wget
  • Alama on 23 Best Free and Open Source Console Linux File Managers
  • LNX on 23 Best Free and Open Source Console Linux File Managers
  • Steve Emms on 20 Useful Free and Open Source PDF Manipulation Tools
  • Tarek Hasan on 20 Useful Free and Open Source PDF Manipulation Tools
  • Alama on 23 Best Free and Open Source Console Linux File Managers
  • LNX on 23 Best Free and Open Source Console Linux File Managers
  • Steve Emms on DJV – media playback and review app

Programming Books

Read our curated lists of great free programming books. Learn Java, C, Python, C++, C#, JavaScript, PHP, and many more languages.

Alternatively, check out our series of great free programming tutorials.

Feedback

Help expand our coverage of Linux software by completing our:

  • Open-source software form
  • Linux distro form

Your feedback is very much appreciated. Complete our contact form.

Support Us


Donate
to LinuxLinks

Thank you for supporting LinuxLinks. If you like our site, the best way to ensure it remains available is to make a donation.

Small Devices

We’re publishing a series of articles for each of these Linux-based phones, Mini PCs, SBCs, and NAS devices.

Chuwi CoreBook Air Plus laptop
BOSGAME M6 HX370 – AMD
BOSGAME M4 Plus – AMD
Minisforum AI X1 Pro – AMD
Minisforum UM890 Pro – AMD
Volla Phone Quintus with UT (ARM)
HP ProBook 440 G8 Refurb – Intel
ASRock NUC BOX-255H – Intel
Aiffro K100 All-SSD NAS – Intel
Orange Pi 6 Plus (ARM)
Orange Pi R2S (RISC-V)
Orange Pi RV2 (RISC-V)
Orange Pi 5 Ultra and Max (ARM)
Raspberry Pi 5 (ARM)

Other SBC series are available on our Series landing page.

Replace Proprietary Software

Migrate from large multinational software companies and embrace free and open source solutions.

Google
Google
Microsoft
Microsoft
Apple
Apple
Adobe
Adobe
IBM
IBM
Autodesk
Autodesk
Oracle
Oracle
Atlassian
Atlassian
Corel
Corel
Cisco
Cisco
Intuit
Intuit
SAS
SAS
Progress
Progress
Salesforce
Salesforce
Citrix
Citrix

Reviews

ReviewsWe’ve written tons of in-depth and completely impartial reviews of open source software. Read our reviews.

New to Linux?

NewbieBegin your Linux journey with our easy-to-understand guide designed for newcomers.

Mega Compilations

100 GUI Apps
100 TUI Apps
100 CLI Apps

Recent Posts

  • keifu – TUI that visualizes Git commit graphs
  • btlescan – terminal UI for scanning Bluetooth Low Energy devices
  • Pinchtab – lightweight browser control system designed for AI agents
  • 28 Best Free and Open Source Linux Bioinformatics Tools
  • TAYGA – out-of-kernel stateless NAT64 implementation
  • RepoRover – universal Linux package updater
  • Alternatives to popular CLI tools: file
  • 11 Best Free and Open Source Lightweight Graphical Web Browsers
  • batctl – battery charge threshold manager for Linux laptops
  • Dooble – minimal, scientific, and stable web browser

Desktops

9 Best Desktops
24 KDE Themes
33 KDE Widgets
42 GNOME Extensions
Pantheon, Trinity, LXDE

Archives

Related

Contact us
Link us
FAQ
Comment FAQ
ForFOSS.com
OSSBlog.org
Privacy Policy

© LinuxLinks 1998-2026: Designed by LinuxLinks.