Error::

The IP xxx.xxx.xx.xxx is exposing a Open Memcached Server service to the Internet. Such configuration could lead to Open Memcached Server amplification attacks.

There are two quick solutions to this problem and that is either configuring your Memcached to listen to localhost or completely stopping it.

Option 1: Configure Memcached Server listen to localhost

When running Zimbra mail server, memcached is a very important module because it helps proxy service achieve caching of upstream routes to mailstores on a per end-client basis - significantly reduces the route lookup time thus improving the total time required to process the request and boost performance.

Since now Memcached is necessary, let's configure our server memcached daemon to listen through localhost / 127.0.0.1 IP Address instead of public.

Read more: Howto stop vulnerable Open Memcached on a Zimbra Server.

Common error

Starting proxy...failed.
nginx start failed. reason: No available memcached servers could be contacted

NOTE: proxy server tends to stop working after configuration and restart of Memcached. Therefore run the following command

Solution

[zimbra@server1 ~]$   zmprov ms `zmhostname` +zimbraServiceEnabled memcached

[zimbra@server1 ~]$   zmproxyctl restart

Many times you will want to have user-friendly URLs on your site. Instead of https://www.mydomain.com/index.html you will want to have https://www.mydomain.com/index . The second URL looks much better. Also, from the SEO point of view it is better to don’t use file extensions. For my tutorial purpose I am using a domain url https://www.bbscargoltd.comt/about.php which in conclusion i will be able to access it via https://www.bbscargoltd.com/about 

Read more: Howto remove .php, .html extensions on a web page using .htaccess file

Most of the times when uploading a bigger image file or a publication into a wordpress or Joomla or Drupal website, you get an error like “this file or image exceeds the maximum upload size for this website “

Below are some of ways to increase your Max Upload Size to MB of your choice.

Read more: How to Increase the Max Upload Size Limit

Step 1

Log into your Zimbra admin account through https://mail.yourdomain.com:7071/ or your known server name.

Step 2

On Dashboard click on Manage (Left Hand Side menu)

Read more: Howto Create a Distribution List or Mailing List in Zimbra mail server