Mois: août 2014

FC Security for CCIE DC – FC Port Security

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Mind Safe

Fibre Channel port security prevents unauthorized Fibre Channel devices and switches from logging into the fabric. This protects the fabric from accidents, malicious intent or attacks such as WWN identity spoofing. It’s configured on a per-VSAN basis.  

Everything covered here can be found in this configuration guide:
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/configuration/guides/security/nx-os/sec_cli_6-x/psec.html

You have a few options to choose from when configuring Port Security:

1. Configure with auto-learning and CFS distribution
2. Configure with auto-learning without CFS distribution
3. Configure with manual database

The first method is definitely most practical, as you can configure once, learn the current environment, and use Cisco Fabric Services (CFS) to distribute throughout the fabric. I’ll be following this method in this blog post, feel free to follow along.  Also added a quick template at the bottom.

Voir l’article original 2 488 mots de plus

Crypto Currently: Prices for Bitcoin, Litecoin, Dogecoin, and Pandacoin

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The Cryptosphere

pandapandapandapanda pandapandapandapanda

Well, thank god THAT’s over. It’s hard to say that stable cryptocurrency prices are sanity or not, but whatever it is, we has it. At least compared to yesterday.

To celebrate the return of (in)sanity to the markets, we’re featuring the adorably-named Pandacoin. Predictably, their marketing materials are equally adorbs.

According to Urban Legends « A group of rare Pandas will emerge from their bamboo-bases and congregate to perform violent and ritualistic sexual acts in order to facilitate the birth of a new era of Cryptocurrency. The legend says that two baby Panda offspring shall come forth and combine their ectoplasm and add a touch of soy sauce to create an omnipotent all knowing coin« .

Riiiight. I don’t know if it’s all-knowing (wouldn’t it have gotten out of itself before yesterday?) but it’s philosophically grounded, and we all know that just mints money, right?

Voir l’article original 56 mots de plus

Systeem veroorzaakt dip in koers bitcoin

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FINANCELAB

De virtuele munt Bitcoin maakte maandagavond een onverwachte crash. De munt dook van bijna 500 dollar naar 309 dollar in enkele seconden tijd. De oorzaak van die daling is niet duidelijk maar het zou kunnen dat het een gevolg is van het systeem zelf. Steeds meer handelaars zien in dat de acceptatie van bitcoin op termijn onvermijdelijk zal zijn. Maar de vrees voor grote schommelingen en voor fraude heeft een systeem doen ontstaan waarbij de crypto’s na de acceptatie meteen worden omgezet in een reguliere munt. Als er dus veel omzet is weegt dat snel op de koers omdat er ook veel bitcoins op korte tijd verkocht worden. Maatschappijen zoals Bitpay zijn gespecialiseerd in dergelijke transacties.

De crash van maandag zal overigens geen zware gevolgen hebben. Slechts 1% van alle bitcoins noteert immers op een geregelde beurs. In principe is die notering ook in strijd met de principes van cryptocuurencies.Virtuele…

Voir l’article original 53 mots de plus

15 Aug 2014 (AFR) – Cisco cuts 6000 jobs as CEO forecasts stagnant growth

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Aussie Sharemarket Barometer

(15 August 2014, AFR, p31, Peter Burrows)

‘Cisco Systems is cutting 6000 jobs and forecasting little to no revenue growth in the current quarter amid a slump in demand from phone and cable companies, and weakness in emerging markets. The world’s largest networking-equipment maker, which has about 74,000 employees, said it will take a pre-tax charge of as much as $US700 million ($753 million). Including the latest round of firings, which represent about 8 per cent of the workforce, Cisco has let go more than 18,000 people over the past three years.’

Read more at AFR.com (might need AFR login access)

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