it is a repository to store all slides used by Triton Ho's public presentation and course.

Pinpoint is an open source APM (Application Performance Management) tool for large-scale distributed systems written in Java.

Nagios/Icinga plugin for checking a domain name expiration date

🔺 The Multi-Tool Web Vulnerability Scanner.

OWASP ModSecurity Core Rule Set (Official Repository)

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

A curated collection of publicly available resources on how technology and tech-savvy organizations around the world practice Site Reliability Engineering (SRE)

Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

A collection of Linux Sysadmin Test Questions and Answers. Test your knowledge and skills in different fields with these Q/A.

安全导图

An authorization library that supports access control models like ACL, RBAC, ABAC in Python

This is a webshell open source project

Runbooks for different topics

Security Guide for Developers (实用性开发人员安全须知)

🐶 A curated list of Web Security materials and resources.

Grep rough audit - source code auditing tool

StuQ 技能图谱

Roadmap to becoming a web developer in 2017

A collection of Burpsuite Intruder payloads, fuzz lists and file uploads

A curated list of resources for learning about application security

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

A supercharged Git/GitHub command line interface (CLI). An official integration for GitHub and GitHub Enterprise.

Certbot, previously the Let's Encrypt Client, is EFF's tool to obtain certs from Let's Encrypt, and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that …

Loki - Simple IOC and Incident Response Scanner

A curated list of amazingly awesome open source sysadmin resources inspired by Awesome PHP.

A curated list of tools for incident response

Collection of linux sysadmin/devop interview questions

A curated list of awesome lists of interview questions.

Penetration Testing/Security Cheatsheets