I'm trying to check my application (which runs on SSL) with haproxy. As I read the documentation, my options for health checks are:
It appears these options are mutually incompatible - specifying one does not let you specify another. Is there a way to make an SSL request to a specific URL and check if it's up?
If I have contradictory NS records for my domain:
dig +trace example.com
example.com. 172800 IN NS ns1.webfaction.com.
example.com. 172800 IN NS ns2.webfaction.com.
example.com. 172800 IN NS ns2.mydyndns.org.
Which one[s] will be queried by my DNS client? Does the ordering matter? How can I tell the ordering?
In this talk at Berkeley, Jeff Dean's slides contain the following note, about a third of the way through the presentation:
Non-intuitive: remove capacity under load to improve latency (?!)
The intuition I have is that less load on the box would reduce latency, but this note makes it seem the opposite is true, for Google at least. Why would this be the case?
This Server Fault blog post about wifi shows some tools you can use to view interference on your wireless network. They mention Vistumbler, which only works on PC's. Is there a similar tool I can use to measure wireless interference on a Mac?
Also, is it better to be on a channel with many AP's, each with a weak signal, or on a channel with only a few AP's, but a strong signal?
Let's say I'm trying to monitor a box with Nagios, but there's a runaway process that's stealing nearly 100% of the computer's CPU and RAM. How does Nagios continue to alert me about the status of the box, in this case? What's to stop the runaway process from blocking Nagios from running as well?
Possible Duplicate:
How to convert text file from Windows line breaks to Unix ones on Unix/Linux?
Basically the same question as How to convert line breaks in a text file between the Windows and Unix/Linux formats?, but for a Windows machine.
Thanks, Kevin
I just bought a custom domain that I'm trying to use as my primary email address. However at the moment many of my emails are landing in people's SPAM accounts. Are there any cheap ways around this problem (no-spam lists at internet providers or that sort of thing)? I'm not a spammer, I'm a fourth year college student.