Linux
Convert PDF to JPEG
I know there are allot of online tools that allows you to convert PDF to JPG. For confidential reasons I prefer to do it locally on my machine.
Improve ssh session performance by reusing an existing connection to a remote SSH server
When working on a remote server, it is often necessary to establish multiple Secure Shell (SSH) connections to the same host. This can be time-consuming and resource-intensive, especially if you are working on a slow or congested network.
Cheatsheet Utility
It is often helpful to have a quick reference to a set of commands in a development environment. Some of them are hard to remember because they are not very common.
Static website hosting with NGINX and LetsEncrypt
Static site generators are a fantastic way to manage a website. Static sites are faster and safer than dynamic sites. Nginx is an ideal web server for serving these static files.
Install and configure a tftp server
TFTP (Trivial File Transfer Protocol) is a simplified version of FTP (File Transfer Protocol). It was designed to be easy and simple. TFTP leaves out many authentication features of FTP and it runs on UDP port 69. As it is very lightweight, it is still used for different purposes.
Identify and remove rogue dhcp server
A DHCP (Dynamic Host Configuration Protocol) server is a networking service that automatically assigns IP addresses to devices on a network.
A “rogue” DHCP server is one that has been set up without the network administrator’s knowledge or permission, and can cause conflicts and connectivity problems on the network.
How to recover a deleted file when a process keeps it open.
We all make small mistakes every day. Unfortunately, some of these mistakes are unforgivable because we end up destroying or losing data for various reasons.