First let’s look at the pricing. The Opteron 6276 is priced similar to an E5649, which is clocked 5% lower than the X5650 we tested. If you calculate the price of a Dell R710 with the Xeon E5649 and compare it with a Dell R715 with the Opteron 6276 with similar specs, you end up more or less the same acquisition cost. However, the E5649 is an 80W TDP and should thus consume a bit less power. That is why we argued that the Opteron 6276 should at least offer a price/performance bonus and perform like an X5650. The X5650 is roughly $220 more expensive, so you end up with the dual socket Xeon system costing about $440 more. On a fully speced server, that is about a 10% price difference.
Category Archives: Servers
ARM Discloses Technical Details Of The Next Version Of The…
“The current growth trajectory of data centers, driven by the viral explosion of social media and cloud computing, will continue to accelerate. The ability to handle this data increase with energy-efficient solutions is vital,” said Vinay Ravuri, vice president and general manager of AppliedMicro’s Processor Business Unit. “The ARM 64-bit architecture provides the right balance of performance, efficiency and cost to scale to meet these growing demands and we are very excited to be a leading partner in implementing solutions based on the ARMv8 architecture.”
via ARM Discloses Technical Details Of The Next Version Of The… – ARM.
List of open source captive portal software and network access control (NAC)
List of open source captive portal software and network access control (NAC) « Mohamed Thalib’s Blog.
I have listed here some open source captive portal software and network access control (NAC) systems.
1. ChilliSpot – http://www.chillispot.info
2. Wifidog – http://dev.wifidog.org
3. PacketFence – http://www.packetfence.org
4. HotSpotPA – http://www.hotspotpa.com
5. NoCat – http://nocat.net
6. CoovaChilli – http://coova.org
7. Utangle – http://www.untangle.com
8. pfSense – http://www.pfsense.org
9. PepperSpot – http://pepperspot.sourceforge.net
10.Zeroshell – http://www.zeroshell.net/eng/ 11. m0n0wall – http://m0n0.ch
RTSP: Real-Time Streaming Protocol
The Real-Time Streaming Protocol allows to control multimedia streams delivered, for example, via RTP. Control includes absolute positioning within the media stream, recording and possibly device control.
PXE Boot server
This documents how to setup a PXE boot server for Linux. This assumes that you’re using Redhat/FC as the PXE boot server. The vast majority of the information has been obtained from the following webpages:
via PXE Boot server.
OpenGroupware Coils
OpenGroupware Coils is a Python port of the venerable OpenGroupware project. It is backward compatible and can be installed in parallel with legacy versions of OpenGroupware.
OpenGroupware Applications
The free software solution for team communication.
Made for companies, government institutions, distributed project teams and everyone, who has to access important information independend of location or time.
XBMC running on Raspberry Pi
SPDY: Google wants to speed up the web by ditching HTTP
In an attempt to avoid these issues, SPDY uses a single SSL-encrypted session between a browser and a client, and then compresses all the request/response overhead. The requests, responses, and data are all put into frames that are multiplexed over the one connection. This makes it possible to send a higher-priority small file without waiting for the transfer of a large file that’s already in progress to terminate.
via SPDY: Google wants to speed up the web by ditching HTTP.
This article is two years old.
StartCom Free SSL Certification Authority
StartCom, the vendor and distributor of StartCom Linux Operating Systems, also operated MediaHost™, a hosting company which offered its clients SSL secured web sites with certificates signed by StartCom for many years. That’s where the idea originated: Free SSL certificates!