Slashdot Mirror
Flaws Threaten VoIP Networks?
jdkane writes "CNET News reports that security flaws have been found in products that use VoIP and text messaging, including those from Microsoft and Cisco Systems. What's interesting, in Microsoft's case, is that the Internet Security and Acceleration Server product that's also affected is designed to help protect companies' networks from online attacks. Specifically, a filter used in the server that secures VoIP communications is vulnerable to the flaw."
Linux Myths
With all the recent attention around Linux as an operating system, it's important to step back from the hype and look at the reality. First, it's worth noting that Linux is a UNIX-like operating system. Linux fundamentally relies on 30-year-old operating system technology and architecture. Linux was not designed from the ground-up to support symmetrical multiprocessing (SMP), graphical user interfaces (GUI), asynchronous I/O, fine-grained security model, and many other important characteristics of a modern operating system. These architectural limitations mean that as customers look for a platform to cost effectively deploy scalable, secure, and robust applications, Linux simply cannot deliver on the hype.
Myth: Linux performs better than Windows NT
Reality: Windows NT 4.0 Outperforms Linux On Common Customer Workloads
The Linux community claims to have improved performance and scalability in the latest versions of the Linux Kernel (2.2), however it's clear that Linux remains inferior to the Windows NT(R) 4.0 operating system.
For File and Print services, according to independent tests conducted by PC Week Labs , the Windows NT 4.0 operating system delivers 52 percent better performance on a single processor system and 110 percent better performance on a 4-way system than similarly configured single processor and 4-way Linux/SAMBA systems.
For Web servers, the same PC Week tests showed Windows NT 4.0 with Internet Information Server 4.0 delivers 41 percent better performance on a single processor system and 125 percent better performance on a 4-way system than Linux and Apache. For e-commerce workloads using secure sockets (SSL), recent PC Magazine tests showed Windows NT 4.0 with Internet Information Server 4.0 delivers approximately five times the performance provided by Linux and Stronghold.
For transaction-orientated Line of Business applications, Windows NT 4.0 has achieved a result of 40,368 tpmC at a cost of $18.46 per transaction on a Compaq 8-Way Pentium III XEON processor-based system. This industry leading price/performance result from the Transaction Processing Performance Council (TPC) clearly shows how Windows NT can deliver world-class performance for heavy duty transaction processing. It's interesting to note that there is not a single TPC result on any database running on Linux, and therefore Linux has yet to demonstrate their capabilities as a database server.
Linux performance and scalability is architecturally limited in the 2.2 Kernel. Linux only supports 2 gigabytes (GB) of RAM on the x86 architecture,1 compared to 4 GB for Windows NT 4.0. The largest file size Linux supports is 2 GB versus 16 terabytes (TB) for Windows NT 4.0. The Linux SWAP file is limited to 128 MB. In addition, Linux does not support many of the modern operating system features that Windows NT 4.0 has pioneered such as asynchronous I/O, completion ports, and fine-grained kernel locks. These architecture constraints limit the ability of Linux to scale well past two processors.
The Linux community continues to promise major SMP and performance improvements. They have been promising these since the development of the 2.0 Kernel in 1996. Delivering a scalable system is a complex task and it's not clear that the Linux community can solve these issues easily or quickly. As D. H. Brown Associates noted in a recent technical report,2 the Linux 2.2 Kernel remains in the early stages of providing a tuned SMP kernel.
Myth: Linux is more reliable than Windows NT
Reality: Linux Needs Real World Proof Points Rather than Anecdotal Stories
The Linux community likes to talk about Linux as a stable and reliable operating system, yet there are no real world data or metrics and very limited customer evidence to back up these claims.
Windows NT 4.0 has been proven in demanding customer environments to be a reliable operating system. Customers such as Barnes and Noble, The Boeing Company, Chicago Stock Exchange, Dell Computer, Nasdaq and many others r
Parent is offtopic. His post has NOTHING to do with designer jeans at Macy's under $10.
Q: What's sadder than people having phone sex?
A: Jerking off listening to *other* people having phone sex.
Please chose one:
(_)1. Ass Licking
(_)2. VOIP
(X)3. Sex with a mare
You are quite welcome sir.
/. experience. Any other way is like fucking with a rubber on.
-1, the only way to get the FULL
Un-news
Did anyone else see this? I can't believe this isn't on the front page. A sad day for all of his fans.
I know I'm going to regret asking this, but what does "sillema sillema nika su" mean? It was a fortune on slashdot.
Google shows very few hits for "sillema".
teh fun doesn't stop!!!1
Yeah this is what happens when you outsource I.T. work & they implement Microsoft or 3rd party software end to end solutions for VoIP. Use a damn router with real encryption like we did years ago. It's amazing how stupid businesses got in I.T. in the last 3 years since Clinton sent our jobs overseas.
Two roads diverged in a wood, and I - I took the one the bus load of girls just went down.