My stat shows a lot of hits on forum from single IP. During 2 days it look through my forum about 4-5 times (everything including users profiles). No post were posted. I wonder what it may be. Rather robor cos manyally it seems pretty hard to do. I have significant increase in views. Thank you so much in advance. Peace & inspiration!
What kind of log files are these? They are not giving you very much information. You should change the info that is captured in your logs. It is better for security and, as you are finding out, better for tracking down needed information. I would recommend logging the following...
Client IP User Name Service Name Server IP Server Port Method Bytes Sent Bytes Received User Agent Referer
Where and how to change this depends on platform and web server.
Shape, this sounds like a "bad bot". Forums are great targets for various kinds of crawlers, particularly e-mail harvesters.
Once you see its user agent info or can verify that the IP isn't a good bot (like Googlebot), you may want to ban the IP and/or user agent. You'll also want to configure your stats program (if you use it to see how busy your forum is) to ignore identified bots to avoid incorrect statistics.