testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as some cryptographic flaws. Clear human-readable and machine-readable outputs. No installation needed, uses only bash. Test any SSL/TLS enabled service on any port.
A Makefile and set of shell scripts for turning a new OpenBSD box into a mail server with one command.
The goal of this document is to help operational teams with the configuration of TLS on servers. All Mozilla sites and deployment should follow the recommendations below. The Operations Security (OpSec) team maintains this document as a reference guide to navigate the TLS landscape. It contains information on TLS protocols, known issues and vulnerabilities, configuration examples and testing tools. Changes are reviewed and merged by the OpSec team, and broadcasted to the various Operational teams.
A web application that sits in front of a command line Signal client that lets you send messages from a web browser. Seems to also have a REST API. Requires a second phone number to set up an account, it's not an extension to an existing Signal setup. Looks like all-Docker-all-the-time but it looks like you can also run it as a system service (a systemd .service file is in the docs, and it says nothing about using Docker for that).
Interestingly, it's a couple of shell scripts.
A collection of awesome lists, manuals, blogs, hacks, one-liners, cli/web tools and more. Especially for System and Network Administrators, DevOps, Pentesters or Security Researchers.
Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH.
We call it clientless because no plugins or client software are required.
Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser.
See your server in a web browser and perform system tasks with a mouse. It’s easy to start containers, administer storage, configure networks, and inspect logs. Full dashboard. Lets you configure things as well as look in on them. Extensible with a plugin architecture. Packaged in many distros, including Debian. Does not replace the shell, does not take over the system's configuration so you can work from both ends and they won't conflict. Doesn't step on other management apps, either. Uses your account, relies on sudo to elevate privs. Mobile friendly. If you can reach it using SSH, you can admin it.
Appears to be written in C.
A CLI utility which tries to make it easier to run arbitrary applications inside of Docker containers.
Teaching the server tech you need for development and production. Eliminating the frustration of server configuration. Databases, configuration management, containers, proxies, security, PHP, and much more.
If I am at a shell prompt I can type echo $ORACLE_HOME and get a path. This is one of my environmental variables that gets set in my ~/.profile. However, it seems that ~/.profile does not get loaded fron cron scripts and so my scripts fail because the $ORACLE_HOME variable is not set.
How to make cronjobs run stuff in shells with full sets of environment variables.
It’s always better to do things right the first time! So why not start with a scheme that can take you all the way from your small suburban office to an underground global headquarters where you torture British spies while patting a white fluffy cat. Start it off right and you never have to make significant changes to it again.
Secure your email server with STARTTLS Everywhere! Your email service can be insecure in numerous different ways. The service below performs a quick check of your email server's security configuration, including whether STARTTLS is supported, and whether it may qualify for the STARTTLS Policy List.
A Python module for writing Cloudformation templates. You define stuff in Python and it writes JSON for you.
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