...Twisted supports all major system event loops, select (all platforms), poll (most POSIX platforms), epoll (Linux), kqueue (FreeBSD, macOS), IOCP (Windows), and various GUI event loops (GTK+2/3, Qt, wxWidgets). Third-party reactors can plug into Twisted, and provide support for additional event loops.
It is a tool that allows Linux users to change their DNS settings easily and quickly. Thanks to its user-friendly graphical interface, you can add, manage and apply different DNS addresses.