If you inspect your server’s error logs, you may see that many visitors (for the most part robots) constantly request access to things they should not be allowed to see. If you see that such access are suspicious and they are trying to spam your forum or hijack your mail program, you may need to deny access from those IP’s. Collecting such offending IP addresses by manually inspecting your logs across your site can become a full-time job. In such cases, you may block access to the site on Country basis (from which the suspicious access was observed) , given that the site have very few legitimate visitors from these regions. It can be done by using the mod_geoip apache …
