Symptoms: Internet applications, web browsers being the most obvious, lose the ability to find host IP addresses resulting in "hostname not found", or similar errors. Though this error is sometimes legitimate, it happens on major sites (Yahoo! Google) and it happens sporadically. Upon further research, I discovered that performing an 'nslookup' on the same host name from the command returns the correct IP address, and I am able to navigate to the IP address without problems. This problem has been traced to the lookupd service used by OSX 10.2.2. Further documentation on the problem can found int
this thread on the Apple Discussions site.
Temporary Fix: You can temporarily fix this bug by running the following command (notice that the following command contains backticks not single quotes):
% sudo kill -1 `cat /var/run/lookupd.pid`
Let's hope Apple fixes this bug soon.
[
Editor's note: I can't confirm this bug, as I've had no lookup problems on my 10.2.2 box as of yet...]