Начинаем большой плейлист по DevOps (старые плейлисты не бросаю и буду дополнять).  Про DevOps хорошо можно прочитать тут: https://habrahabr.ru/post/303050/
Подходить к DevOps начнем с понятия IaC (Инфраструктура как код), выясним методики и поговорим об инструментах. Хорошее их сравнение тут: https://habrahabr.ru/post/211306/

Update, March 13, 2018
Wildcard certificate support is live.
Let’s Encrypt will begin issuing wildcard certificates in January of 2018. Wildcard certificates are a commonly requested feature and we understand that there are some use cases where they make HTTPS deployment easier. Our hope is that offering wildcards will help to accelerate the Web’s progress towards 100% HTTPS.
Let’s Encrypt is currently securing 47 million domains via our fully automated DV certificate issuance and management API.

Обертка для SSH для работы со многими компьютерами

A list of awesome applications, software, tools and other materials for Linux distros.  - luong-komorebi/Awesome-Linux-Software

LFISuite - Totally Automatic LFI Exploiter (+ Reverse Shell) and Scanner

Хакеры взломали системы бронирования отелей, принадлежащих президенту США Дональду Трампу, и похитили личные данные клиентов.

Weekly updated overview of the best Linux security tools for pentesters, security professionals, and system administrators. See tool reviews and compare the strenghts (and weaknesses) of each tool.

A collection of small bash scripts for heavy terminal users - alexanderepstein/Bash-Snippets

Burp Suite is the premier offensive hacking solution, and now when new hackers reach at least a 500 reputation on HackerOne and have a positive signal, they are eligible for 3-months free of Burp Suite Professional.