There are some cases in which customer needs the ability to access the server from a host sitting behind the same interface using it's public ip address. Usually DNS inspection is used to do this, however DNS inspection is not possible in some cases when the dns request do not pass through the ASA.
Topology
------10.1.1.0/24(internal network)----------inside---ASA----20.1.1.0/24----outside
Following is the static statement to map the server public to private ip addreses:
static (inside,outside) 20.1.1.10 10.1.1.10
Following are the nat and global statement for the inside host to access the internet:
nat (inside) 1 0 0
global (outside) 1 interface
Below added configuration on the ASA would achieve the result:
global (inside) 1 interface
static (inside,inside) 20.1.1.10 10.1.1.10
Similar configuration would be required in 8.2+.
