Softminer.net

For security its recommended to encrypt web.config after deploy.

MSDN article is here
Encrypting and Decrypting Configuration Sections


cmd should run as Administrator in Windows Server 2008

Example:

Encrypt:
C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -pe "connectionString" -app "/appname"

Decryption:
C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -pd "connectionString" -app "/appname"