DELL SonicWALL - get AirPlay and DLNA working between bridged LAN and WLAN

Setup

• DELL SonicWALL NSA 220 wireless-N
• LAN and WLAN interfaces Bridged (on the same subnet)

Issue

• Streaming protocols that rely on multicast (such as Apple Bonjour/AirPlay and DLNA/UPNP) don't work between devices that span LAN and WLAN zones.
• If all devices are either on Wireless or Wired part of the network, everything works fine.

On residential routers you would normally expect such streaming protocols to work between LAN and WLAN with no additional configuration, but because SonicWALL is a business grade firewall, it needs some additional configuration to allow multicast traffic between wired and wireless clients.

Kunena Forum - You are banned until Today

Issue

After restoring a Joomla website from a backup, all users logged on to a Kunena Forum are greeted with "You are banned until Today" message...

Fix 'Leverage browser caching' Google Webmaster Tools warrning

Google Webmaster Tools "Leverage browser caching" warning can be resolved by adding following to the .htaccess file on your (Apache) web server:

## Browser caching ##
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg "access 1 year"
ExpiresByType image/jpeg "access 1 year"
ExpiresByType image/gif "access 1 year"
ExpiresByType image/png "access 1 year"
ExpiresByType text/css "access 1 month"
ExpiresByType application/pdf "access 1 month"
ExpiresByType application/x-javascript "access 1 month"
ExpiresByType application/javascript "access 1 month"
ExpiresByType application/x-shockwave-flash "access 1 month"
ExpiresByType image/x-icon "access 1 year"
ExpiresDefault "access 2 days"
</IfModule>
## Browser caching ##

Joomla 3 (Tiny MCE) images displayed without borders

After upgrading to Joomla 3, images in articles on some of my websites started being displayed without borders even when I specified 1px border Tiny MCE editor's image dialog.

Note: code border-width: 1px; in Style field is added automatically by Tiny MCE after entering 1 in the Border field.