- Newer RHEL compatible OS with network-manager having startup errors because of tentative state on the network interface
by Luis Castro Silva
With the latest OS versions, RHEL 8 and up, the OS is now running the DAD (Duplicate Address Detection) algorithm …
- Windows Powershell script for automating packet captures when an alarm event shows in the logs
by Luis Castro Silva
This post is for monitoring the event logs through a power shell script and then execute a wireshark from command …
- Checking DNS response time with a simple script
by Luis Castro Silva
This article is meant to help companies that own a DNS resolver and want to make sure their service is …
- Is it worth to buy an iwatch 6/7?
by Luis Castro Silva
If you are an apple lover, there is no need to look for information about this device, but if you …
- What is an ISP (Internet Service Provider)?
by Luis Castro Silva
An ISP is the company the gives you access to the Internet. Not all companies offer internet access only, for …
- What are DNS caching servers?
by Luis Castro Silva
DNS service is very important for using our everyday tools today. All our banking apps, Alexa, Siri, Google Assistant, booking …