This makes it easier to restrict content based on group membership. URL authorization grants access to URLs within an IIS application based on user names and roles, as opposed to server or system accounts. Incorporate URL Authorization In Your Application If a production server is deployed without this module, web requests become a serious vector for attack, depending on what kind of code you have out there.
UpGuard helps you keep track of where it's installed and can proactively notify you if it's changed. So in the event of Denial of Service (DoS) and brute force attacks, IIS’ Dynamic IP Restrictions (DIPR) module can temporarily block IP addresses making unusual requests.ĭynamic IPs are just another module within IIS. This is essentially a whitelist-"allowUnlisted"-that IIS uses to prevent unauthorized access. UpGuard ensures IIS modules are correct across any number of servers by transforming a known good configuration on one of the servers into executable documentation against which the others can be tested regularly.ĭynamic IP address restrictions use a requestor’s IP addresses and domain name to determine whether or not to restrict access. Even if you haven't upgraded, ensure that only required modules are present. Be sure to disable and/or uninstall any unused IIS components and features to minimize the web server’s attack surface. If you plan on upgrading from a previous version of IIS, be forewarned that your previous installation’s state information and metabase will be carried over to the new install. Analyze Dependencies and Uninstall Unneeded IIS Modules After Upgrading. IIS 8.5 for server 2012 R2 and IIS have been hardened and no longer present the dangerous default configurations of older IIS iterations, but can still be further tightened. By following these 10 steps, you can greatly increase security for your IIS web apps and servers. In fact, for many “IIS security” is a contradiction of terms-though in all fairness, Microsoft's web server solution has improved significantly over the years.
Microsoft Internet Information Server (IIS) is widely used in the enterprise, despite a less-than-stellar reputation for security.
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