If your host system uses Time Stamp Counter and Virtual Machine guests use kvm-clock, then you should not use ntp on the guest. But what if you sync the physical host to a good Internet time source and just sync the virtualized guest to itself?

Self tracking, or “personal informatics”, is a growing trend of keeping a log of data surrounding the events in your life, and the avenues are expansive. From monitoring weight, heart rate, and blood pressure, to geo-tracking using GPS receivers, to genome profiling and Internet meetup groups, there are a wide variety of people and interests involved in this new fad. I have a hard enough time tracking my fitness routine at the gym, so anything that takes the manual labor out of tracking my statistics is a plus to me.

I moved a database over to another server and setup php and lighttpd, but authentication for my app wasn’t working.