How to search if the processor is 32bit or 64bit
How I can know if my processor is 64 bits or not under Linux operating systems? In order to know the technology of our CPU uses the uname, which displays information on screen version of the kernel we use and if it is 32 or 64 bits. : ~ $ Uname-a Linux 2.6.28-19-webdatabaseserver # 64-server Ubuntu SMP Wed Aug 18 22:43:50 UTC 2010 x86_64 GNU / Linux text x86_64 GNU / Linux indicates that we are running a Linux kernel 64bit. If you look at the output is a kernel i386/i486/i586/i686 32. How I can know the CPU is 32 bits or 64 bits? Because we can install a core 32-bit server 64 also can run the command cat / proc / cpuinfo to determine if the CPU ... Read the full article »
Filed under: Central Processing Unit
The hardware servers Google
It is public knowledge that currently provides services that are supported by google an impressive are servers that work as one, we call this cluster. Google currently hosts its servers in shipping containers, do not believe, nor do I. But read on. In the photo left a patched server can be seen for the first engineers at Google. According to researchers the image server was still in Stanford University a little over ten years, serving 500,000 consultations / queries per day. Data on the construction and operation of the network of Google back in 2006 Strassmann, who has been responsible for Information Technology at NASA, describe in some detail how the structure and operational methods of technology ... Read the full article »
Installation and configuration of a scanner in Ubuntu
A few moments ago I was asked to scan the floor of a building containing the points of network cabling offices. The question was, How do I scan this role in Ubuntu? How to configure or install a scanner on the Ubuntu operating system is the easiest thing in the world. On our desktop gnome we'll Applications> Graphics> Image scanning program XSane. When you run it automatically detects Xsane capture devices connected. Select the scanner and then indicated that Xsane finished loading its interface we click Acquire Preview and magically everything works. ... Read the full article »
Tips for Meraki wireless mesh networks
If you are looking how to make a mesh network, look no further. For years participated in a networking lug Calif.-based San Francisco. Apart from the collaboration provided by members, they have developed a range of wireless devices (AP) to mesh networks very easily. How easy I can mount my home mesh network? As simple as, connect, create an account on Meraki's website and follow the wizard's setup. The devices automatically downloaded and ready configurations. For a larger facility, say a college campus or an entire community or neighborhood, we can also use the Meraki devices for our network with roaming wireless network also known as Mesh. Connect a network cable cat-5 with internet connection (DHCP, NAT ok) the other to ... Read the full article »
SCSI vs SATA
For network storage which is better: 150 SATA or SCSI ultra360? Balance of size, cost and speed. Most of what we are talking about SCSI also applies to SAS - the parallel SCSI versaion. What if I need a terabyte of data storage in living and working. Capacity: SATA drives up to 1 TB, SCSI 300GB are still around. Price: SATA is around 50 cents per GB, SCSI can be as expensive as $ 2 per GB. Reliability: bit errors on SATA 10X more than SCSI. This is essential because mistakes during the rebuilding of a RAID system can cause data loss. Thus, SCSI may be able to successfully use RAID-5 but NOT recommend using RAID5 in any production environment. On the other ... Read the full article »
Bluetooth 3.0 WiFi speeds up to 802.11
The Bluetooth version 3 was officially launched by Bluetooth SIG showing improvements in the previous version. Known as Bluetooth 3.0 + HS, has increased its speed thanks to the new radio based on the 802.11 protocol. The inclusion of the Protocol Adaptation Layer 802.11 (PAL) offers higher performance data transfer rates of approximately 24 Mbps All this with an increase in fuel economy with new spending controls integrated energy. The integration with the new standard catapult wifi Bluetooth to send images more than just a phone to another, the V3.0 is agile enough to handle an HDTV camcorder, PC-to-PMP and UMPC for transfers to the printer. The new speed will allow us to stream audio and ... Read the full article »
Bluetooth 3.0 - Officially Announced
The Bluetooth Special Interest Group (SIG) is planning the April 21 announcement mind the launch of Bluetooth 3.0. The specifications of the new standard combines low energy Bluetooth, new rates for high speed data transfers based on 802.11 standards. The inadequacy of the protocol layer 802.11 (PAL) allows Bluetooth to operate in the 2.4 GHz spectrum, unlike UltraWideBand which operates from 3.1 to 10.6 GHz Further details of the new Bluetooth 3.0 will be published this month when he formally introduced the technology. ... Read the full article »
How to use 4 GB of RAM on Ubuntu 8.10: Intrepid Ibex
Now that manufacturers are bringing to market technology for laptops with 64-bit, I've read on many internet sites to use 4 GB of RAM on a PC you need the operating system is 64 bits. I just bought a HP Pavilion with 4 GB of RAM, and Windows Vista recognized the 4 gigs with no problem (except for the slowness of Vista) as the HP hardware and Microsoft's system are 64 bits. Since I am a Windows user I installed Kubuntu 8.10 Intrepid on the Pavilion and had no problems. But seeing the amount of ram I detect my Linux, I noticed that only recognizes 3.2 GB of 4 GB of hardware. I thought ... Read full article »
How to install the restricted Nvidia graphics card in Ubuntu Intrepid
On my PC I always install a testing version of Debian Linux, but this time for my HP dv9933nr decided to install Kubuntu Intrepid 8.10. This is because Ubuntu 8.04 is quite stable as a desktop system. Everything I've tried has worked perfectly in Kubuntu is amazing as the Intrepid Ibex detect even the media keys on your computer. Even the screen resolution has been pretty good, but without 3D acceleration OpenGL. NVidia's driver had not imported until I was watching and had jumps mp4 video. Intalacion NVIDIA GeForce 8600M GS driver on Ubuntu / Kubuntu 8.10 There are many forms, manuals and methods to install the nvidia drivers, but this is the easiest, simple and fast to have our 2D acceleration running Linux on the desktop. ... Read the full article »
Linux: Maximum Memory and CPU limitations of the server
It is always necessary to know the limitations on the maximum amount of memory and the maximum number of CPUs supported by Linux servers and systems. This is an essential task for making decisions. It is always necessary to consider at least the AMD and Intel platforms. Intel x86 CPUs maximum: 32 (including logical CPUs) Maximum Memory: 64GB maximum file size: Maximum Number of 8TB (ext3): 16TB Maximum virtual address space per process: 64/EM64T AMD CPUs 4GB maximum: 64 Maximum Memory : 128GB Maximum filesize: 8TB maximum file size (ext3): 16TB Maximum virtual address space per process: Not Available Note that the above limitations are based on a Linux system running a stock kernel or vanilla. According to reports from NASA, as ... Read the full article »
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