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gobuster

Directory/File, DNS and VHost busting tool written in Go

linux-smart-enumeration

Linux enumeration tool for pentesting and CTFs with verbosity levels

at-ps

Adversary Tactics - PowerShell Training

onesixtyone

Fast SNMP Scanner

hping

hping network tool

acccheck

evtx-parser

Parsing evtx logs files from windows

libevtx

Library and tools to access the Windows XML Event Log (EVTX) format

DeepBlueCLI

lookuper

Looks stuff up (MD5, SHA256, IP, Domains, URL's, strings e.g. mutexes)...

Hacking-Security-Ebooks

Top 100 Hacking & Security E-Books (Free Download)

sso

sso, aka S.S.Octopus, aka octoboi, is a single sign-on solution for securing internal services

Free-Security-eBooks

Free Security and Hacking eBooks

CTFd

CTFs as you need them

Portus

Authorization service and frontend for Docker registry (v2)

linux-kernel-exploitation

A collection of links related to Linux kernel security and exploitation

ossec-hids

OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.

zeek

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

w3af

w3af: web application attack and audit framework, the open source web vulnerability scanner.

tutanota

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

onionshare

Securely and anonymously share files, host websites, and chat with friends using the Tor network

gophish

Open-Source Phishing Toolkit

cutter

Free and Open Source Reverse Engineering Platform powered by rizin

zaproxy

The ZAP core project

vuls

Agent-less vulnerability scanner for Linux, FreeBSD, Container, WordPress, Programming language libraries, Network devices

the-book-of-secret-knowledge

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

gron

Make JSON greppable!

hydra

OpenID Certified™ OpenID Connect and OAuth Provider written in Go - cloud native, security-first, open source API security for your infrastructure. SDKs for any language. Works with Hardware Security Modules. Compatible with MITREid.

the-practical-linux-hardening-guide

This guide details creating a secure Linux production system. OpenSCAP (C2S/CIS, STIG).

labs

This is a collection of tutorials for learning how to use Docker with various tools. Contributions welcome.