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 the Meraki 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 (with DHCP, NAT ok) the other to ... Read the full article »
SCSI vs SATA
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 versaion parallel SCSI. What if I need a terabyte of data storage in living and working. Capacity: Units 1 TB SATA, SCSI 300GB are still around. Price: SATA is around 50 cents per GB, SCSI can be as expensive as $ 2 per GB. Reliability: SATA bit errors are 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 »
Filed under: Articles , Hard Drive
Bluetooth 3.0 WiFi speeds up to 802.11
The Bluetooth version 3 was officially launched by Bluetooth SIG introducing 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 HDTV video camera, 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 launching Bluetooth 3.0. The specifications of the new standard combines low power consumption of Bluetooth, new rates for high speed data transfers based on the 802.11 standards. The misfit layer protocol 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 »
Linux: Installation and Configuration of NIC D-Link DGE-530T 10/100/1000 Gigabit Desktop PCI Adapter
Building networks of new high-performance clusters'm installing high availability clusters with disk block based network DRBD. To create the network or data channel DRBD devices'm installing network cards compatible with Linux: D-Link DGE-530T see. 7.00 (I) Rev B2. Features This adapter network adapter NIC includes advanced features such as Wake-On-LAN and 802.3x. Computers and operating systems that support the Advanced Configuration and Power Interface (ACPI) can remotely wake your PC from anywhere in the network with Wake-On-LAN feature. With support for 802.3x flow control, data is received and transmitted smoothly to and from the network. This NIC supports ls IEEE 802.3, 802.3u, 802.3ab, ensuring compatibility with networks ... Read the full article »
Ethtool: Force or restart auto-negotiation of the NIC
Prior to force changes in speed network interface card (NIC), or auto negotiate the speed we use mii-tool. Even the two commands to check or change the network card on the status of the unit MII (Media Independent Interface). Most fast ethernet adapters use an MII to auto-negotiate link speed or duplex link and adjust. Due to hardware (network switch or Ethernet card) or software may be need to restart the auto-negotiation of an ethernet device. Reset the NIC autonegotiation to renegotiate the link speed is no need to reboot Linux, just type the following command as root, root @ betuntu: ~ # ethtool-r eth0 When you run the above change we see in the bitcora following; betuntu root @: ~ # tail ... Read the full article »
Filed under: Internetworking , NIC
Repairing the Master Boot Record with fdisk from windows
Linux distributions generally, write to the MBR (Master Boot Record) on your hard drive as a boot loader is Lilo or Grub. These managers, show a boot menu where you can choose which version of the Linux kernel to boot and even if we want we want to use other operating systems (Mac, Windows). Everything works fine until for some reason the MBR is destroyed and the computer only 0s and 1s typical samples (zeros and ones). This indicates that mensjae no longer be possible to boot windows if we have at hand a rescue diskette or system to Windows 2000 or Windows XP. If Linux is not installed If you want to go back to using Windows on our PC, the easiest way to save the MBR or ... Read the full article »
Filed under: Articles , Hard Drive , Device , Hardware , Howto , Linux , Windows , Windows Vista , Windows XP
Auto mounting USB drives (pen drives) on Debian Linux
How to get KDE 3.4 automagically recognize and mount hotplug devices on Debian. It is not complicated to make KDE 3.4 autodetect and mount hotplug devices in media: /. You only need to install the following packages, toshi: ~ # aptitude install hal udev dbus pmount-1 Then add the user to the plugdev toshi: ~ # adduser fher98 plufdev Erase / etc / fstab entries for all removable devices, so this pmount way the ride it and not mount automatically. Note: Debian Lenny these steps are not necessary, since Lenny comes with KDE 3.5 which automagimente mounted and USB keys. ... Read the full article »
Filed under: Articles , Debian , Devices , Graphic Desktop , Howto , KDE , Linux
How to set up a simple gateway with Debian Linux
When a company has a broadband connection to the Internet and aims to share the connection between different offices, often thought to be necessary to buy a dedicated firewall computer, which is a mistake. In this paper we show that with minimal investment and using Debian Linux to our network we can offer best services when purchasing a computer firewall. The acquisition of this hardware may be too expensive for many enterprises in Guatemala, in contrast to using a dedicated machine with Debian Linux installed and serving as a gateway for the LAN, it offers many benefits when compared against a team of dedicated firewall. To begin with, is much more flexible and also allows us to offer many extra services to our network. To run ... Read the full article »
Filed under: Articles , Debian , DHCP , Howto , Internet , Iptables , LAN , NIC
An introduction to Debian networking setup
Establish a network under Debian (sarge, etch, lenny) is very similar to other GNU / Linux, especially in areas such as DNS. However, if you're new to the distribution you may not know where things fit. In this brief introduction to networking trabaja.Solo will show you how there are a couple of things we should care: Set the hostname DNS Configure Configure Configure the gateway IP address (gateway) by default. Configuring hostname Set the hostname to a Debian is quite simple. We can ask them directly or set with the hostname command as a user can see the name of the current host: user @ mkdiablo: ~ $ / bin / hostname mkdiablo To set the hostname directly become root and run: mkdiablo: ~ # / bin / hostname nuevo_nombre_de_host When the system ... Read the full article »
Filed under: Articles , Debian , DHCP , DNS , Howto , Internetworking , NIC
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