Its rare, but sometimes spotlight gets a little dumb. It will start missing things in /Applications or people in your address book. If this happens to you then you can have it reindex the volume. Just run mdutil -E / Continue reading Have spotlight reindex any volume
We had been having some problems w/ dns for OS 10.4 users. After running lookupd -flushcache didn’t work, and host was returning the correct values I got confused. Google to the rescue once again. I fixed it with scutil. If Continue reading If you are having DNS issues w/ OS X. Look into scutil.