title: You don't have permission to access /wp-admin/post.php on this server. Wordpress
body: <p>The question was edited 3 times and it now includes VPS and Centos tags, because i think there is something wrong with my VPS config file.</p>
  
  <hr>
  
  <p>Ok, first, I've looked through all the questions asked here, and there is no answer to the issue I have.</p>
  
  <p>The problem is that when I try to copy/paste and update or create WP post, I get this warning that says: <strong>"You don't have permission to access /wp-admin/post.php on this server."</strong></p>
  
  <p>The strangest thing is that when I copy/paste it mostly crashes only if there are some special format like Italic or any symbol, but not every like (). So if I paste text, it mostly crashes but not always.</p>
  
  <p>Now, to make the things even stranger, I had a post that was doing just fine, I mean it used to appear fine on the blog. Then I've tried to create a contact page, I've published it and it didn't show on the blog. There was a message saying nothing found there on the link. Then I've started to click around and I've noticed my post that was doing right disappeared too. I mean it's still there, but when you click on read more it says nothing found. </p>
  
  <p>I've turned off all the plugins I'm using (in fact only Fourteen Color) and have changed the theme, but with no result at all.</p>
  
  <p>Any idea why does this happen?
  I'm hosting it on a virtual server and there are running 2 sites more at the same Ip, but I don't think, this could be the problem. 
  Previously I was playing with SSL and I thought that might be the problem, but then I deleted the domain and have created anything from scratch and the issue persists.</p>
  
  <p>Pd. When I try to publish a raw entered text from the keyboard I've no problems, but when I paste it, it usually crashes the post.</p>
  
  <p>Edit: My .htaccess file is here: </p>
  
  <pre><code># BEGIN WordPress
  &lt;IfModule mod_rewrite.c&gt;
  RewriteEngine On
  RewriteBase /
  RewriteRule ^index\.php$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule . /index.php [L]
  &lt;/IfModule&gt;
  
  # END WordPress
  </code></pre>
  
  <p><strong>Edit 2:</strong> It seems I can't post links too. When I try to post a link I get the same error.</p>
  
  <p><strong>Edit 3:</strong> I'm trying to locate the php log file, but it seems there's nothing there. So my thought is: what if the error have to do with wp trying to write the log but it can't get permission? I have the php logs enabled in the config so there should be at least one, but i can't find any. Does anyone can tell me, where I have to look for the logs. Now I'm looking on /var/log but there are no php log file.</p>