Cisco ASA - Web Server Publishing

Question

My requirement is I need to publish 2 Web Servers to internet behind Cisco ASA.
The users will be using secure https acccess to the Web Server.
I have only 1 Public IP Address assigned to access both the Web Servers.
Wanted to know what are the things required in the Cisco ASA firewall.
1. What type of licenses ?
2. What type of certificates ?
3. How can i use a single Public IP to access to both the Web servers. Does the Cisco ASA supports this.
I dont want any client software on the end users PC.....

Answer 1

ThanksI do have 2 Public IP address for my 2 servers.That is clear.
I thought you said you just have 1 Public IP in your first post. Anyways, if you do have 2 Public IPs for each server, then use Static NAT instead of PAT. Use the same commands but without the port information.
Prior 8.3:
static (inside,outside) public_ip1 web_server1 
static (inside,outside) public_ip2 web_server2
8.3 or later:
object network web_server1_real
host web_server1
nat (inside,outside) static public_ip1
object network web_server2_real
host web_server2
nat (inside,outside) static public_ip2
Because Application1 will be published to the web server and the web server will be published to internet, the web server is the one to be published through ASA. I am not sure how you use Application1 and how you will publish it to the web server internally so this is out of the scope of my help.
About Application2's security, the question is, how do you want to achieve security for App2? We have several types of security. Having the ASA infront of Application2, using NAT and using ACLs, this will achieve Access Control. However, if you want to achieve data encryption between internet clients and App2, then you have to consider PKI (or certificates) to achieve this. You also can consider IPsec remote access vpn for the App2 server. It all depends on what security flavor do you like.
Regards,
AM