Does Ubuntu have a DNS server?
In this way, DNS alleviates the need to remember IP addresses. Computers that run DNS are called name servers. Ubuntu ships with BIND (Berkley Internet Naming Daemon), the most common program used for maintaining a name server on Linux.
Should I use static DNS?
Advantages of a static IP
Among these benefits are: Better DNS support: Static IP addresses are much easier to set up and manage with DNS servers. Server hosting: If you are hosting a web server, email server, or any other kind of server, having a static IP address makes it easier for customers to find you via DNS.