Hide Port Numbers in Sharepoint Applications (or) create all applications on one port..i.e on Port 80

1. While Creating the application, give the same port number but different host header for each application.
2. Add entry in DNS for that Host Header with the IP Address.
3. If DNS is not available, add entry in C:\Windows\System32\drivers\etc\HOSTS file with the host header and the system ip address.
Restart the IIS and Recycle the Application Pool.
Note: Site opens only in the computer where u enter the entry in HOSTS File.
4. For already created applications with different ports, go to edit bindings property of the website in IIS and change the port back to 80 and add a Host header and do the same above steps for resolving.
5. Might need to add in Alternate access mappings also in case we need to find search results.

Note: Application might be asking the credentials in a loop trying to authenticate, Windows Error..Below is the fix.

Follow these steps: Disabling the LoopBackCheck
1. Click Start, click Run, type regedit, and then click OK.
2. In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
3. Right-click Lsa, point to New, and then click DWORD Value.
4. Type DisableLoopbackCheck, and then press ENTER.
5. Right-click DisableLoopbackCheck, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Quit Registry Editor, and then restart your computer