Latest news
SunScreen, Part Two: Policies, Rules, and NAT
The first article in this series introduced SunScreen 3.2, which is available as part of the Solaris 9 distribution. SunScreen is Sun Microsystem's firewall product and provides a variety of features that allow system and network administrators to secure their networks as well as provide for remote access capabilities. This article will cover the some of the rudimentary facilities in SunScreen such as adding and removing rules, setting up a remote management station, and network address translation.
SunScreen uses the concept of policies as a way of defining the rules that the SunScreen firewall implements. Policy rules consist of a variety of items, which Sun terms as "Common Objects". Common objects include such items as the following:
IP Addresses
SunScreen Screens
Services
Certificates
Time
This is not an exhaustive list by any means. There are many more common objects that can define the rules used to implement SunScreen policies. Common objects provide a significant flexibility, which allows SunScreen policies to be very powerful.
[ Read more ]
![]()
Related items
- News: An Overview of the Sun Microsystem Firewall (27 January 2003)
Spotlight

Information security executives need to be strategic thinkers
Posted on 17 June 2013. | George Baker, the Director of Information Security at Exostar, talks about the challenges in working in a dynamic threat landscape, offers tips for aspiring infosec leaders, and more.

Large orgs in denial about own security breaches?
Posted on 14 June 2013. | Over two thirds (66%) of large organizations said they either had not experienced a security incident in the last 12-18 months or were unsure if they had.

Vulnerability scanning with PureCloud
Posted on 12 June 2013. | nCircle PureCloud is a cloud-based network security scanning product built upon the companies' vulnerability and risk management system IP360.

To hack back or not to hack back?
Posted on 12 June 2013. | If you think of cyberspace as a new resource for you and your organization, it makes sense to protect your part of it as best you can. But is it a good idea?

Reactions from the security community to the NSA spying scandal
Posted on 11 June 2013. | Read on for comments on this scandal that Help Net Security received from a variety of security professionals and analysts.
By subscribing to our early morning news update, you will receive a daily digest of the latest security news published on Help Net Security.
With over 500 issues so far, reading our newsletter every Monday morning will keep you up-to-date with security risks out there.







