SSO is single sign on, so you don’t need individual username and password for every service. It’s a bit more advanced so don’t worry about it until you have what you want working properly for a while.
DNS is like the yellow pages of the internet - when you type www.google.com your computer uses a DNS server to look up what actual IP address corresponds to the website name. The point of Adguard or pihole is that when a website tries to load an ad your custom DNS server just says it doesn’t recognize the address
tuck182@lemmy.world 3 weeks ago
SSO is “single sign on”. DNS is “domain name service”, which is just a way to turn a hostname (like www.google.com) into an IP address. It’s sort of like a phone directory, but for the Internet.