# Ancient Web: ARPA.NET Baked a Cake for 1,000 Days of Sun Uptime ARPA.NET preserved a tiny Unix-administration milestone page celebrating a Sun SPARC IPX that ran continuously for 1,000 days before a power outage finally ended the experiment. 2026-05-09 :: Switchboard Tech Services ![Ancient Web: ARPA.NET Baked a Cake for 1,000 Days of Sun Uptime](https://switchboardtechservices.com/static/images/defaults/articles.webp) Part of the [Ancient Web Collection](https://switchboardtechservices.com/articles/ancient-web-collection/). There are systems administrators who would celebrate 1,000 days of uptime with a graph. [ARPA.NET](http://ARPA.NET) bought a cake. [Visit ARPA.NET's 1,000 Days of Uptime page](http://www.arpa.net/1000days.html) On May 20, 2001, the host `NS0.ARPA.NET` reached 1,000 consecutive days of uptime. The machine was a Sun SPARC IPX that had been running since August 24, 1998. The page preserves a photograph of the cake, a shot of the console terminal and the output showing how long the system had been alive. It also admits the obvious secret to legendary uptime: the machine was not doing very much. The author explicitly notes that the systems relied upon for actual [ARPA.NET](http://ARPA.NET) services ran newer operating systems on newer hardware and were rebooted as necessary to install kernel patches. That sentence is a small piece of sysadmin sanity preserved in HTML. ## Then the building blinked Nine days after the celebration, an unplanned power outage in the machine room ended the experiment. [NS0.ARPA.NET](http://NS0.ARPA.NET) was eventually retired. The page also records a second thousand-day machine, `LL.ARPA.NET`, this time a Sun Fire V240 that was actively hosting both a DNS server and a game server. The original celebration even offered an 11-second, 1.5 MB MPEG clip showing the login and `uptime` command. That file size is almost as useful as the machine specification. In the early 2000s, a 1.5 MB movie was something worth warning the visitor about. There is a particular old-Unix culture embedded in this page: server names mattered, hardware models mattered, uptime mattered, and taking a photograph of a terminal felt like reasonable proof that the event had actually happened. Today, cloud infrastructure is routinely replaced, redeployed or autoscaled before a physical server can accumulate a mythology around its boot time. A thousand days of uninterrupted operation is less a universal badge of excellence than it once seemed; sometimes refusing to reboot simply means refusing to patch. But as a historical artifact, this little page is nearly perfect. It documents the hardware, the dates, the joke, the evidence and the power failure that eventually won. Sometimes it was a Sun box, a terminal and frosting. [See the original 1,000-day uptime celebration](http://www.arpa.net/1000days.html) Part of the [Ancient Web Collection](https://switchboardtechservices.com/articles/ancient-web-collection/). - Categories: [Ancient Web](https://switchboardtechservices.com/articles/categories/ancient-web/) - Tags: [#ancientweb](https://switchboardtechservices.com/articles/tags/ancientweb/), [#unix](https://switchboardtechservices.com/articles/tags/unix/), [#sunmicrosystems](https://switchboardtechservices.com/articles/tags/sunmicrosystems/), [#uptime](https://switchboardtechservices.com/articles/tags/uptime/), [#sysadmin](https://switchboardtechservices.com/articles/tags/sysadmin/) [Articles RSS](https://switchboardtechservices.com/feeds/articles.xml "Subscribe using an RSS reader") --- Canonical URL: https://switchboardtechservices.com/articles/ancient-web-arpa-net-baked-a-cake-for-1000-days-of-sun-uptime/ Language: en-us Content type: article Author: Switchboard Tech Services Published: 2026-05-09T19:02:59+00:00