Ahhh... you don't want them to automatically start?
The distro is ClarkConnect which believe is taken from RedHat.
... derived from RHEL and designed as a server/firewall. But it uses APT to handle rpms.
Now RedHat uses a utility called Network Device Configuration called from the main menu. There is also an internet configuration wizard. Either way, there used to be a network configuration dialog.
Try: Settings > Network > Dail-up Connections
(Does it really have a start button?)