I'm not a SQL newbie as such. I'm an "accidental DBA" who's been working with SQL Server for 20+ years.
However, I am increasingly concerned that I lack enough knowledge about computer networking to handle all the network and connection issues that come up with SQL Server: timeouts, firewalls, availability groups, clusters, and so on.
Does anyone know a good course or other online reference to help me learn more about computer networking as it relates to SQL Server? Or a good general fundamental networking course? It doesn't have to be free, but if a good free one is out there that would be great.
Thanks for any help.