Looks like I found what was causing the issue, but still a little unsure about why it was. While getting some help setting up a multi-wordpress site, I set the error/access logs to "/var/log/nginx/$host.access.log". Changing out that $host for a hard coded name seems to have stopped all the new logs from being created. Now that I know what was causing it, does anyone have any insightby vidkun - Other discussion
I was looking at my servers logs in /var/log/nginx and noticed that it is creating log files for a large number of domains that I have nothing to do with. Does anyone know of any configuration setting that I might try looking for that I could have possibly misconfigured to allow something such as this? For an example of the logs it is creating, there is the log file "www.yahoo.com.access.log.by vidkun - Other discussion