These are 4 essential pieces of information about jumbo frames (mtu 9000) you must know. What are Jumbo frames? How do you can you test whether they are working? What are symptoms of misconfigured network equipment? Read to find out
Tags [ Networking ]

DNS is a critical service that everyone uses every time they surf the web. Many people don't understand how it works; especially when migrating a website or service to a new host. Click to read a quick overview of how DNS works.
Tags [ DNS ] [ DNS Lookup ] [ Domain Name Service ] [ dig ] [ nslookup ] [ Networking ]

The goals of SSL/HTTPS are to provide a secure channel of communication. You should be able to trust that the SSL certificate you receive was actually issued to the website you are visiting and that it is non-trivial for a third party to read the data passing between the client and server.
Tags [ ssl ] [ https ] [ http/2 ] [ security ] [ certificates ] [ Let's Encrypt ] [ Networking ]