After experiencing a very high amount of hits on my 404 page, I've started monitoring my website's Error Log. There I've found that through-out the day, there are several attempts at accessing admin folders and editors on my website that I does not exist. For instance, there are attempts at accessing Word Press and fckeditor's admin folders, but I don't have either.Any thoughts as to what I should do about these attempts, and if they should be a cause of worry or not?Examples from my Error Log:[Mon Jun 23 16:17:17 2014] [error] [client 120.37.236.236] File does not exist: /home/[snipped]/public_html/admin, referer: [snipped].com/admin/editors/fckeditor/editor/filemanager/upload/test.html[Mon Jun 23 16:16:39 2014] [error] [client 178.158.214.36] File does not exist: /home/[snipped]/public_html/administrator[Mon Jun 23 16:16:39 2014] [error] [client 178.158.214.36] File does not exist: /home/[snipped]/public_html/wp-login.php[Mon Jun 23 10:39:13 2014] [error] [client 120.37.236.217] File does not exist: /home/[snipped]/public_html/admin[Mon Jun 23 08:31:49 2014] [error] [client 27.153.217.87] File does not exist: /home/[snipped]/public_html/fckeditor[Mon Jun 23 05:34:19 2014] [error] [client 115.29.14.241] File does not exist: /home/[snipped]/public_html/editor[Mon Jun 23 05:34:17 2014] [error] [client 115.29.14.241] File does not exist: /home/[snipped]/public_html/admin[Mon Jun 23 05:34:16 2014] [error] [client 115.29.14.241] File does not exist: /home/[snipped]/public_html/FCKeditor[Mon Jun 23 05:34:12 2014] [error] [client 115.29.14.241] File does not exist: /home/[snipped]/public_html/editor[Mon Jun 23 05:34:10 2014] [error] [client 115.29.14.241] File does not exist: /home/[snipped]/public_html/admin[Mon Jun 23 05:34:06 2014] [error] [client 115.29.14.241] File does not exist: /home/[snipped]/public_html/FckeditorAt last, does anyone know how where I can get more information about some of the errors reported in cPanel X's Error Log?For instance, I have lots of entries for File does not exist: 405.shtmlbut I have no idea what page or link has generated them, so I don't know where to go to fix the source of the problem.
Error Log shows nosy visitors trying to access various admin pages
spam;404;error
This is unlikely to be visitors (real people) but is likely to be automated software testing for vulnerabilities in the software run by your website.    I've seen these types of requests for years.  The most common for my servers is requests for WordPress administration pages and Microsoft FrontPage extensions.If you are not running the software, these requests should have very little impact or risk for your website.The standard advice for keeping your software secure applies to web software as well: Keep the software up to date.  Security vulnerabilities in content management systems are discovered often.   My web host even offers to automatically upgrade WordPress for me when new versions come out.