User Mode Linux: Maximizing performance, jailing attackers
User Mode Linux (UML)has ideal security features for controlling and jailing hackers once they've taken the sweetened bait of a 'honeypot,' says User Mode Linuxauthor and project architect Jeff Dike. UML can log all terminal traffic to the host in a way that's invisible and impossible to interfere with from inside the UML unlike Xen and VMware.
Take a tour of UML with Dike as he offers best practices, explains how to boot from an empty jail, talks about jailing attackers and more.
What are some unique issues of server consolidation with User Mode Linux?
Jeff Dike: From my point of view, server consolidation doesn't differ greatly from any other virtualization workload. So, the advantages of UML apply here the same as in other areas.
One aspect of server consolidation that may distinguish it from other virtualization workloads is that the host administrator may not trust the UML administrators. In this case, the UML administrators won't have shell access on the host, and the host administrator will need to decide how they will be allowed to access their UMLs.
The easy solution is to allow only network access. But this will increase the support burden when UML owners make their UMLs inaccessible by misconfiguring their networks. In this case, allowing the equivalent of logging in on a hardwired terminal would be nice, so that the UML admins still have access to their UMLs and can fix the network themselves.
So how should host administrators determine access criteria for UML?
- Login or register to post comments
- Printer-friendly version
- 1556 reads
- PDF version
More in Tux Machines
- Highlights
- Front Page
- Latest Headlines
- Archive
- Recent comments
- All-Time Popular Stories
- Hot Topics
- New Members
digiKam 7.7.0 is releasedAfter three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. |
Dilution and Misuse of the "Linux" Brand
|
Samsung, Red Hat to Work on Linux Drivers for Future TechThe metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. |
today's howtos
|
Recent comments
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago