NetSetMan encompasses everything needed in a network settings manager, allowing you to switch between multiple visually structured profiles, including IP address, subnet mask, default gateway, computer name settings, and more.
NetSetMan is not only useful and efficient but also easy and intuitive to utilize. The entry fields remind of the Windows "Internet Protocol (TCP/IP) Properties," but it's much easier to fill in the addresses.
All settings and changes are saved automatically in a separate file (settings.ini), so a backup, transfer or upgrade to another version is absolutely no problem.
Preferred & Alternate DNS Server - Preferred as well as Alternate DNS Server settings