Articles
Swift basics
Here are some of the basis of the Swift programming language
Some C concepts
C is widely considered to be a difficult programming language. Here are various code snippets to help make some sense of it.
Solving Kong latency problems in Kubernetes
Kong is a popular API gateway that can be used as a reverse proxy for clients to access back-end services. It can be run as a Docker container and, as such, can be deployed to Kubernetes. However, when doing so, requests might be severely impacted by unusually high latency. This can be solved by configuring the order in which Kong resolves DNS records.
Serving web applications with Apache
Let's imagine we have a server with Apache2 listening on port 80. Since port 80 is used, other web apps, developed for example with Node.js, must use another port. Consequently, one would need to open a new port on one's router every time a new app is developed.
Sending pictures via http with an ESP32-CAM
Pictures taken with the ESP32-CAM can be sent in a multipart/form-data type content via HTTP. Here is a sample code to achieve this:
Self-hosted GitLab instance for DevOps on Ubuntu 18.04
GitLab provides a great number of tools needed for the DevOps cycle of an application. In this guide, we'll install a GitLab instance on our own server and configure it to fit our DevOps needs. Here, we will use a fresh install of Ubuntu 18.04 as a base.
Self hosted Docker registry
When using the <code>docker pull</code> command, container images are by default downloaded from docker hub, the official public registry for container images. However, for some projects, images are better stored on a private platform. This can be achieved by hosting one's own docker registry.
Securing an ingress with basic auth
This article describes how to use basic auth to protect an ingress in Kuberentes. It it <a href="https://kubernetes.github.io/ingress-nginx/examples/auth/basic/" rel="noopener noreferrer nofollow">based on this page</a>.
Samba
Samba is a piece of software used to share directories over a network. Directories shared using samba appear as network folders on the file manager of computers that are on the same network.
SSH through an SSH blocking proxy
Most corporate networks have their outbound traffic go through a proxy server to prevent unauthorized access to external resources. It can happen that such proxy only allows HTTP and HTTPS traffic. As such, one cannot connect to an external host via SSH. One way to solve this problem is to use <a href="https://github.com/proxytunnel/proxytunnel" rel="noopener noreferrer nofollow">Proxytunnel</a>. This article follows <a href="https://egret.psychol.cam.ac.uk/techniques/firewall.html" rel="noopener noreferrer nofollow">this guide</a>.