05.06.04
POWER5-Based Servers Hit the Street
The wait for a physical manifestation of IBM's first-of-its-kind virtual computing platform is over.
Big Blue took the wraps off two servers Monday -- dubbed the eServer i5 520 and the eServer i5 570 -- built with the company's next-generation POWER5 processors, which are primed to provide twice the computing power of its POWER4+ predecessors.
Read The Whole Article
Checkpointing and Distributed Shared Memory in openMosix
One way to build a cluster is with off-the-shelf hardware, particularly IBM PC-compatible with an x86 processor. Linux clusters (utilizing Linux and other open source tools) are increasingly popular for migration from an existing cluster or for creating new ones. OpenMosix is one open source clustering middleware, and two new modules have entered the scene: a distributed shared memory patch (MigShm), and a checkpointing module (CHPOX).
OpenMosix is a GPL'ed fork of the MOSIX project. In early 2002, MOSIX turned into closed copyright code and Moshe Bar (current openMosix project leader) modified the code and released it as an open source project. OpenMosix (and MOSIX) is preferred by many administrators, institutions, researchers, and others users because of its transparency in load balancing and process migration. Unlike other clustering tools, openMosix goes right into the kernel code and extends it.
Read The Whole Article |
MySQL Trouble
Welcome to Security Alerts, an overview of recent Unix and open source security advisories. In this column, we look at problems in the Linux kernel, MySQL, CVS, Cadaver, subversion, sitecopy, tla, iproute, Zope, logcheck, kdeprint, emil, and GNU Sharutils.
Linux Kernel Problems
Problems have been found in the Linux kernel code that handles R128 drives, ISO9660 filesystems, and ncp_lookups that can lead to an attacker gaining root permissions. In addition, there is a problem in the code in the ext3 filesystem that can lead to unauthorized access to information, and a problem in the Sound Blaster driver's code that can be used as part of a denial-of-service attack.
Read The Whole Article
| Have your listing reach beyond the saturated portals and search engine destination sites into the Internet's best content sites ->learn more |
Getting the Most From Your Shell
Everyone uses it, but do they know how to use it to best advantage? I'm talking about the Unix shell. No matter whether you log in to a super-duper latest-thing X desktop or with a Wyse 30 over a slow modem connection, you will most likely at some point be using the shell. This article looks at how you can get the most from it.
While the rest of the world points and clicks in a scary little world of icons, all alike, we in the world of Unix get to use our good old CLI, or command line interface. One big reason why the CLI has remained so prevaisive in Unix environments is that it is actually damn good. Modern Unix shells are stable and powerful. This article looks at some methods to increase the power and usableness of your shell.
Read The Whole Article
Securing Server 2003 Domain Controllers
Because the domain controller, as its name implies, in many ways has control over your Windows domain and all of the computers that belong to it, it is essential that you take extra precautions to ensure that your DCs are and remain secure. In this article, we will look at a few of the important security measures you should take in regard to your domain controllers.
Physically Securing the DCs
The first (but probably most overlooked) step in securing your network’s domain controllers is to ensure that they cannot be tampered with physically. This means locating them in a locked server room to which access is strictly controlled and documented. Don’t depend on a physical version of “security through obscurity,” thinking that putting these critical computers in an out-of-the-way but unlocked closet will thwart a determined data thief or saboteur.
Read The Whole Article
| Get POWERFUL one-way links without participating in a link exchange program start here |
Linux vulnerable to infiltration
Linux source code could be infiltrated by dubious elements, including spies, according to a white paper released by Dan O'Dowd, chief executive officer of Green Hills Software Inc.
This is his second white paper in a series that his company describes as being focused on "the urgent security threat posed by the use of the Linux operating system in U.S. defense systems, including the Future Combat System and Global Information Grid."
Read The Whole Article
| | From the Forum: | | Email Management | I've noticed that many of you manage dozens and even hundred's of domains. I am working with just 6 and have trouble managing the email that this generates.
I'm not thinking about spam, but customer inquiries, general business and so on. ... |
 |
|
