A relatively strange error encountered by some WordPress users is the generate of a file-not-found or 404 error when a particular post is saved or updated. To the user, the error seems almost random and generally leads to speculation that one of the plugins and sprung a leak.
The problem, I found, is actually security settings on the server. Mod Security or Mod Security 2 block certain phrases and links from being saved as a means to protect the server from hackers.
Apart from changing your content, the solution is to disable to specific rules that trigger the error. If you are using Mod Security, then adding a single line to the .htaccess file in the root directory may work (source):
SecFilterEngine Off
Open the file /usr/local/apache/conf/modsec2/whitelist.conf
Add the following:
<LocationMatch "/wp-admin/post.php">
SecRuleRemoveById 300015 300016 300017
</LocationMatch>
<LocationMatch "/wp-admin/admin-ajax.php">
SecRuleRemoveById 300015 300016 300017
</LocationMatch>
<LocationMatch "/wp-admin/page.php">
SecRuleRemoveById 300015 300016 300017
</LocationMatch>
Restart apache.
After running into a number of problems I implemented this second solution and it worked very well.
Before you begin write a mission statement
Yes, the dreaded mission statement. It really is not that bad and may be exactly what you need to set the strategic direction for your online presence or website.
So, before you begin, write a mission statement listing the key objectives for your future (or current) website. Why should it exist? What is it you want to accomplish and why is it important to your customers? What information, activities and services do your customers want that a website will satisfy?
If these questions are elusive then consider spending time examining competitor’s sites, talking to a few of your key customers and evaluating your reasons for going online.
If you have a business website that serves as an electronic business card this is a great opportunity to evaluate your web presence to determine if it satisfying your customers. I’m a great proponent of publishing more than a static description of goods and services.
After your mission statement is clear, every strategic decision that is made should align with you’re your your objectives, purpose and reason for building an online presence.
In developing this site I began with the following:
Mission Statement: I want to help my readers achieve business success through online technologies by publishing articles and reports that explain effective solutions to common problems, (2) enable more efficient operations and (3) provide strategic opportunities for growth.
As I develop both the content and design of AdeptPlus, I constantly refer back to this mission statement to ensure my direction and focus are on target.