Articles
Here you can find some articles about things I use or find interesting.
Learning Languages
Some resources for learning Spanish and French on the web.
~ Andre Pestana (August 11, 2023)
Testing connectivity between hosts
Often, when ensuring the availability and accessibility of your services, you may find it necessary to perform a simple test to check if a particular endpoint is hosting a running service. It's akin to knocking on a door to see if anyone's home—a straightforward gesture. However, you may lack the means to perform this "knock" yourself. By means, I refer to applications like telnet, which serves as a metaphorical hand to carry out the knocking process. Presently, it's quite common for operating systems to operate within lean Docker containers, devoid of telnet, curl, or nc commands. Consequently, I have compiled a list of alternatives for you to ensure that the endpoint you are testing indeed accepts connections.
~ Andre Pestana (May 19, 2023)