Originally Posted by pyraxiate
Lol yes I took it apart and read everything from the inside out. Is your server online 24/7 and secure? I'm a bit of a security freak personally.. looks legit otherwise
Yes it's always online and yes it's secure. It's served over a million requests since October 2011. The NTP pool utilizes seven stratum 2 servers rather than some random server of the thousands of people who submit their home, work, or whatever servers to the NTP.ORG list. The DNS servers is apart from the hosting servers and has a redundant secondary in the event of an outage. The hosting servers are mirrors. I'm keeping the primary active all the time with a secondary just in case of a foul up. But that's very unlikely to occur. In my 10+ years of screwing with Linux servers, I have had maybe 6 days of downtime in total and most of that was a few minutes to upgrade RAM, swap to a new hard-drive with an updated OS, or other spec-related issues.
Let's assume there is a extremely unlikely outage of one hour. Your phone will process and cache the xtra.bin file for the length of its validity. That is a maximum of 24 hours. If it were out for a short time, your phone wouldn't be looking for it because it has the cache built up. The phone won't always get that data. It does so on expiration. This is why this patch works when very well on WiFi-only tablets, too.
As the v3.x gps.conf discusses, there are numerous components aside from the file and the NTP pools. It's divided into sections and discussed very plainly about what each section does. But, I know you've seen that already.
Again, I do not foresee any downtime and the servers are well paid in advance. I do ask for donations to help offset the costs of hosting these for all of our benefits. I do not rely on donations, but it is nice for the very few to offer some help in covering costs.