External facing portal

Hi Experts,

As requested by client we built external facing portal but having one issue like

every thing is wotrking fine but when the user clicks to check the appraisal template

it is giving error like only for the R/3 related like T-code, BSP application

Address Not Found

Firefox can't find the server at stc.siil.com.

The browser could not find the host server for the provided address.

• Did you make a mistake when typing the domain? (e.g. "ww.mozilla.org" instead of "www.mozilla.org")

• Are you certain this domain address exists? Its registration may have expired.

• Are you unable to browse other sites? Check your network connection and DNS server settings.

• Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing.

waiting for your response .............

Regards,

Shilpa