This brings back memories of my initial foray into the Internet, when I was part of establishing a modest ISP. We used a satellite link, a Cisco router, and a couple of Sun workstations. Oh, and I mustn't overlook the 33.6 kbps modem server hooked up to a bunch of analog phone lines. Configuring Sendmail, Qmail, Bind, and web servers (specifically a Netscape server), along with CGI programming using Perl 4, was part of the experience. I also delved into learning about IPv4 static routing, followed by BGP, among other things. That was fun.