Using stunnel and TinyProxy to obfuscate HTTP traffic

Recently there has been a lot of coverage in both tech and non-tech news outlets about internet privacy and how to prevent snooping both from service providers and governments. In this article I am going to show one method of anonymizing internet traffic; using a TLS enabled HTTP/HTTPS Proxy. In this article we will walk through using stunnel to create a TLS tunnel with an instance of TinyProxy on the other side....

 · 12 min · Benjamin Cane

Using salt-ssh to install Salt

In recent articles I covered how I've built a Continuous Delivery pipeline for my blog. These articles talk about using Docker to build a container for my blog, using Travis CI to test and build that container, and finally using a Masterless SaltStack configuration to deploy the blog. Once setup, this pipeline enables me to publish new posts by simply managing them within a GitHub repository. The nice thing about this setup is that not only are blog posts managed hands-free....

 · 12 min · Benjamin Cane

Creating a swap file for tiny cloud servers

A few months ago while setting up a few cloud servers to host one of my applications. I started running into an interesting issue while building Docker containers. During the docker build execution my servers ran out of memory causing the Docker build to fail. The servers in question only have about 512MB of RAM and the Docker execution was using the majority of the available memory. My solution to this problem was simple, add a swap file....

 · 7 min · Benjamin Cane

A Quick and Practical Reference for tcpdump

When it comes to tcpdump most admins fall into two categories; they either know tcpdump and all of its flags like the back of their hand, or they kind of know it but need to use a reference for anything outside of the basic usage. The reason for this is because tcpdump is a pretty advanced command and it is pretty easy to get into the depths of how networking works when using it....

 · 26 min · Benjamin Cane

Understanding Exit Codes and how to use them in bash scripts

Lately I've been working on a lot of automation and monitoring projects, a big part of these projects are taking existing scripts and modifying them to be useful for automation and monitoring tools. One thing I have noticed is sometimes scripts use exit codes and sometimes they don't. It seems like exit codes are easy for poeple to forget, but they are an incredibly important part of any script. Especially if that script is used for the command line....

 · 6 min · Benjamin Cane