The OSPF Default Mysteries “In this article, you’ll see how the Open Shortest Path First (OSPF) protocol uses default routes and how various OSPF-generated default routes interact in typical network scenarios.”
Key differences between Web 1.0 and Web 2.0 “Web 2.0 is a buzzword introduced in 2003-04 which is commonly used to encompass various novel phenomena on the World Wide Web. Although largely a marketing term…”
iamcal.com – Parsing Email Adresses in PHP That is one crazy regex.
Teach Yourself Programming in Ten Years “Why is everyone in such a rush? Walk into any bookstore, and you’ll see how to Teach Yourself Java in 7 Days alongside endless variations offering to teach Visual Basic, Windows, the Internet, and so on in a few days or hours.”
Renesys Blog: Cogent Becomes Transit-Free “Cogent (AS174) has established a direct connection to the America Online Transit Data Network (ATDN) (AS1668). This long-awaited connection completes Cogent’s effort to directly connect with every transit-free network in the world.”
WWoIT – Wayne’s World of IT: Find VM snapshots in ESX/VC “Find snapshots of VMs in ESX and VC other than manually looking through each VM in the GUI. Query the db using SQL management studio, use sqlcmd from the command-line, list the files in the service console, or use the new VI Toolkit powershell snap-in.”
xtravirt.com – SnapHunter “SnapHunter is an ESX3 Service Console utility which can report back on the Snaphot status of VM’s from multiple ESX Servers.”
Oil Price Fallout: Jobs Coming Home? Sometimes cheap labour isn’t enough…
As the cost of shipping continues to soar along with fuel prices, home-grown manufacturing jobs are making a comeback after decades of decline.
Virtual Geek: Answers to a bunch of questions…
I got a lot of questions on the 10GbE post, which is great. Some of the answers involve graphics, so rather than comments, I’m just going to do a post….
Coding Horror: Revisiting the XML Angle Bracket Tax
I wasn’t trying to present it as “Oh, XML is bad…”. What I was trying to say is why don’t we think about what we’re doing? … Can we just stop programming for a minute to think about what we’re doing and not make a blind choice…?
Coding Horror: The Ultimate Code Kata
Contrary to what you might believe, merely doing your job every day doesn’t qualify as real practice. … You have to set aside some time once in a while and do focused practice in order to get better at something.
Stevey’s Home Page – It’s Not Software I do a lot of monitoring at work at this rang true:
… until you’re actually measuring all your use cases, any one of them can potentially be unavailable without your knowledge. Hence availability monitoring always evolves into real-time QA.
Marcus Ranum – The Six Dumbest Ideas in Computer Security Read this some time back but a mailing list post reminded me of it. “Let me introduce you to the six dumbest ideas in computer security. What are they? They’re the anti-good ideas. They’re the brain damage…”
Personal observations on the reliability of the Shuttle, by R.P. Feynman Estimates range from 1:100 to 1:100,000. Higher from engineers and lower from management. 1:100,000 would imply a Shuttle up each day for 300 years expecting to lose only one. “What is the cause of management’s fantastic faith in the machinery?”
Simulating the Cisco 7200 Router with PC Hardware “Well, rejoice in the power of open source, as there is a project that will let you simulate the 7200 series on a normal server. Dynamips is a GPL-licensed emulator that uses standard IOS releases to simulate 7200, 3600, 3700 and 2600 series routers. ”
VMWare ESX – How to clear a hung VM guest OS. “I’m guessing that most ESX administrators have experienced at least one time where a VM decides to hang leaving them unable to shut down or restart it.”
CT3 – Disable optional IOS features on high CPU load “The applet monitors the average one minute CPU load on the router (using the cpmCPUTotal1min SNMP variable) and disables optional features when the CPU load exceeds predefined value.”
Transcoding MTS/M2TS AVCHD Video Into AVI Files with Free Software | fsckin w/ linux. “When I opened it, the first question in my head was not atypical of a Linux users’ train of thought: ‘Is it compatible with Linux?'” I have a Panasonic HDC-SD9 and trying to convert the MTS files. It would be faster if my laptop wasn’t a Core Solo.
Economist.com – The future of the European Union “…a case can be made that EU treaties are too complex to be readily susceptible to a simple yes/no vote. 11 EU governments promised such referendums on the constitution, and ten of them have been dishonest in pretending that Lisbon is wholly different”
Rough Type: Nicholas Carr’s Blog: Two aphorisms and a few notes “Twitter is referred to as a “micro-blogging platform,” but twittering seems more like antiblogging, or at least an escape – retreat? – from blogging. Blogging is the soapbox in the park, the shout in the street; Twitter is the whispering of a clique.”
EmailKarma.net: Yahoo! Announces Global Availability of Two New E-mail Domains “Yahoo! announced two new e-mail domains … ymail.com and rocketmail.com.” Hello?!? Rocketmail isn’t new, it’s so 1997.
Virtual Geek: 10 Gigabit Ethernet and VMware – A Match Made in Heaven “Consolidation of I/O becomes a core design bottleneck. … So quick math – 60 old physical NICs are now consolidated on 10 NICs”
Gort! Klaatu barada nikto! If you have Firefox 3 enter “about:robots” in the address bar.
Five Tools I Use for Listening | chrisbrogan.com “…companies will spend anywhere from $20,000 to $150,000 on a good website design, but will fail to implement even the most rudimentary listening tools to …. understand the impact of such a site beyond the realm of hits and clicks.”
William Vambenepe’s blog – SaaS management: it’s MUWS and MOWS all over again How now brown cow? “So far, we don’t have good names for them. And the MUWS/MOWS experience shows that good names matter. IMaaS (IT Management as a Service) and MoSaaS (Management of Software as a Service) won’t cut it.”
VMware – Scalable Storage Performance “… the results of studies on storage scalability … with many ESX hosts, many LUNs, or many of both. It examines the effects of I/O queuing at various layers in a virtual infrastructure as more and more virtual machines share the same storage.”
VMware Communities: vMotion Compatibility … “Put on your pajamas, ‘cuz this could put you to sleep. If you happen to be a fella like me with a software background, the following might be helpful for the below discussion of vMotion and CPU compatibility.”
CT3 – BGP default route “BGP default route origination, advertisements and propagation. This article describes the functionality and caveats of BGP default routing.”
VM /ETC – Matrix to Determine VMotion Compatibility by Processor “Dell’s paper titled VMware VMotion and 64-bit VM Compatibility Matrix for VMware Infrastructure 3 and Dell PowerEdge Systems contains a VMotion and 32/64-Bit VM Compatibility Across Processor Models matrix that is easy to decipher.”
Cowboy 2.0 – Salesforce.com No Longer Playing Nice “I guess it was inevitable, but I did not want to believe it could happen. Marc Benioff (Salesforce.com founder, chairman and CEO) was apparently lying to us all along.”
Cisco IOS hints and tricks: Display locally originated BGP routes “Displaying the BGP routes originated in the local AS is simple: you just filter the BGP table with a regular expression matching an empty AS path. Displaying routes originated by the local router is tougher.”
Bruce F. Webster – Anatomy of a runaway IT project “The following document is the actual text – carefully redacted – of a memo I wrote some time back … The memo itself provides an interesting glimpse into just how a major IT project can go so far off the tracks that nothing useful is ever delivered.”
VMware Land – Top 10 Lists That’s a lot of lists!