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Category: Security

Security

detect-secrets – detect and prevent secrets in source code

September 9, 2026 Steve Emms CLI, Security

detect-secrets helps teams detect and prevent credentials from entering source code using baselines, plugins, filters and Git hooks.

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Wi-Fi image

Fluxion – Wireless Security Auditing Tool

September 8, 2026 Steve Emms Security

Fluxion is a terminal-based security auditing tool for evaluating WPA and WPA2 network exposure through controlled captive-portal testing.

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Security

Gitleaks – detect secrets in Git repositories and files

September 8, 2026 Steve Emms CLI, Security

Gitleaks scans Git repositories, files and standard input for passwords, API keys, tokens and other hard-coded secrets in source code.

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Wi-Fi Internet

hcxtools – Analyze Wi-Fi Capture and Hash Files

September 8, 2026 Steve Emms CLI, Security

hcxtools is a command-line suite for converting, filtering and analysing wireless captures and authentication hashes during authorised security assessments.

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Encrypted Files

Keysign – OpenPGP key signing helper

August 29, 2026 Steve Emms GUI, Security

Keysign is a GTK application that securely exchanges and signs OpenPGP keys over a local network or Bluetooth without relying on a keyserver.

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Security

y509 – analyse and validate X.509 certificate chains

August 23, 2026 Steve Emms Security, TUI

y509 is a terminal interface for inspecting and validating X.509 certificate chains from files, stdin and live TLS or STARTTLS services.

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Security

11 Best Open Source Firewall Distributions

August 21, 2026 Steve Emms Distro, Roundup, Security, System Software

Security is paramount. Security involves defense in depth. Approaching security one step at a time, with consistency and rigour, you can mitigate threats.

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Security

9 Useful Free and Open Source Linux Reverse Vulnerability Analysis Tools

August 15, 2026 Steve Emms Roundup, Security

Vulnerability analysis is an essential activity for enterprise security. We recommend useful open source tools.

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Security

Jazzer – coverage-guided, in-process fuzzer for the Java Virtual Machine

August 15, 2026 Steve Emms Security

Jazzer uses code coverage to steer generated inputs towards unexplored paths, crashes and vulnerabilities.

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Security

Ronin – Ruby toolkit for security research and development

August 15, 2026 Steve Emms CLI, Security

Ronin is a Ruby toolkit for security research and development. It provides command-line tools and libraries

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Network Security

12 Best Free and Open Source Linux Terminal-Based Port Scanners

August 15, 2026 Steve Emms CLI, Internet, Roundup, Security, System Software

Linux has a good range of port scanners that help administrators identify and rectify weaknesses in a system.

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Security

syzkaller – unsupervised, coverage-guided kernel fuzzer

August 14, 2026 Steve Emms Security

syzkaller is an unsupervised, coverage-guided kernel fuzzer.

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Security

XMap – fast network scanner

August 13, 2026 Steve Emms CLI, Security

XMap is a fast network scanner for large-scale IPv4 and IPv6 research.

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Security

sx – command-line network scanner

August 12, 2026 Steve Emms CLI, Security

sx is a command-line network scanner designed to follow the UNIX philosophy.

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Vulnerability Detection

17 Best Free and Open Source Vulnerability Detection Tools

August 9, 2026 Steve Emms Roundup, Security

Vulnerability scanning is an essential activity for enterprise security. We recommend the best free and open source vulnerability detection tools.

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Security

OSV-Scanner – finds known vulnerabilities

August 8, 2026 Steve Emms Security

OSV-Scanner finds known vulnerabilities affecting your project’s dependencies.

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Security

8 Best Free and Open Source Network Intrusion Detection Systems

August 8, 2026 Steve Emms Internet, Roundup, Security

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

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Intrusion Detection

Slips – intrusion detection and prevention system

August 8, 2026 Steve Emms Security

Slips (Stratosphere Linux IPS) is an endpoint behavioural intrusion detection and prevention system.

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Security

testssl.sh – tests TLS/SSL ciphers, protocols and cryptographic flaws

August 8, 2026 Steve Emms CLI, Security

testssl.sh is a command-line tool that checks a server’s service on any port for support of TLS/SSL ciphers and protocols as well as cryptographic flaws.

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Security

Vuls – agentless vulnerability scanner

August 8, 2026 Steve Emms Security

Vuls is an agentless vulnerability scanner that identifies security vulnerabilities affecting Linux, FreeBSD, Windows, macOS

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