HP-LX 1.0 Secure Linux
kengreenebaum writes: "Webtechniques has a short but interesting article on HP's approach to a secure but expensive LINUX distro. Basically they started with RedHat 7.1 and added compartments; an extension to the age-old chroot jail concept where the processes representing major services run. Kernel extensions allow HP (or the administrator) to specify which compartments can access which kernel resources including individual files, network stacks, and each other.
HP has
Technical Product Brief as well as other material online. Interesting to compare HP's approach to that of the
NSA's Secure Linux
projects. These concepts sound like a solid way to prevent buffer overflow type security holes in individual services from compromising the entire machine. At $3000 HP-LX is too expensive for many to experiment with but the NSA's code seems to be more readily available. Anybody have experience with these distributions or with similar approaches to Linux security?"
Yes and no. They have to release the source to the people to whom the product is distributed. However, they don't have to make it publically available. The catch is that the people who receive the source can also redistribute it at will. As someone else pointed out, the source is available here.
I expect, however, that HP has some proprietary stuff that's included in non-GPLd binaries.
Bruce
Bruce Perens.