Where do you find logs about connections on debian?

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http://serverfault.com – I installed nginx on debian and then tested it with wget localhost and wget to see if it responds to simple requests. After this i changed the default root folder to /var/www and tried testing again. Now if i try wget locahost it works, but wget gets "connection refussed". I'm thinking it's a permissions problem, but I can't find a long anywhere that would tell me anything about this. I tried searching through all the files inside /var/log and /var/log/nginx but there is nothing there. Is there another place where the system logs failed connection attempts? And if not (HowTos)