When you get down to brass tacks, it is the fact that Internet Information Services (IIS) -- which includes the HTTP, NNTP, SMTP, IMAP4, POP3 and a number of other Internet protocols -- is the source of vulnerability. However, you can not install Exchange 2000/2003 without it running.
The real risk is not planning for it. Here is a short list of things you can do to secure Outlook Web Access.
- Implement Secure Socket Layer (SSL) for secure HTTPS communications between the client (browser) and the server.
- Use front-end servers for Internet clients to connect to. No data is stored on the front-end server and therefore it is a lower risk if compromised.
- Implement IPsec between front-end and back-end servers. SSL can't be used between front-end and back-end servers, but IPsec can.
SSL is really the key to securing Outlook Web Access. You should not allow clients to connect to Outlook Web Access without using SSL.
Do you have comments on this Ask the Expert Q&A? Let us know.
Related information from SearchExchange.com:
Dig deeper on Outlook Web Access
Related Q&A from Richard Luckett
When you're stumped on how to track email items following a central mailbox move, fix the dilemma by knowing what happens to items in mailboxes when ...continue reading
You can pull out the big guns to manually remove what's left of your failed Exchange Server from Active Directory, but it's best to consider ...continue reading
There are a number of actions to take to implement OWA security, including obvious ones like creating strong password policies. Admins should also ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.