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I may even use your question as a post so that it may help others (anonymous, if you so choose).
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Feature Articles Archive
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SSL: Who Do You Trust?
Posted on August 11, 2010 | No CommentsOne of the most important technologies used in the modern Internet is the TLS/SSL protocol (typically called just SSL, but that’s a whole different article). The two benefits that TLS/SSL gives us are privacy and trust. Privacy comes through the use of digital encryption (RSA,... -
Tony, You Idiot
Posted on August 10, 2010 | No CommentsWondering WTF happened? Wondering why we seemed to have gone back in time? Well, the explanation is rather simple. I’m an idiot. I migrated from one hosting system to another. I run regular backups of my MySQL database. Well, apparently there was a field in... -
One Arm, One Network, To Rule Them All
Posted on October 25, 2009 | 1 CommentOk, I’m not really a Tolkin fan (you dare speak such heresy! -ed), but I couldn’t resist the nerd reference. Especially from a guy with a license plate that says “NERD 1″ (I’m not kidding). This post covers network topology, which is how the load... -
Your Epic Fail: Fast or Slow?
Posted on October 11, 2009 | No CommentsIn the load balancing world, many vendors have the concept of “sorry servers”, or “backup server farms/pools”. Essentially, if most or all of your primary servers are down, traffic is redirected to a backup server(s) containing either reinforcements of the same web application, or a... -
HTTP Message: The PDU of Layer 7
Posted on August 2, 2009 | No CommentsIf there’s one thing that made load balancing and web servers in general “click” with me, and make it much simpler to troubleshoot, it’s this: See the world like a load balancer. We see web pages, page layouts, “page cannot be displayed” errors, and menus. ... -
Moore’s Law and Bandwidth Consumption
Posted on May 27, 2009 | 1 CommentMost in IT are familiar with the concept of Moore’s Law, whereby processor capability tends to double about every two years. To a certain extent, this happens with networking equipment, with their capacity increasing at a steady rate, although probably not the same rate at... -
Load Balancing Performance Metrics 101
Posted on May 20, 2009 | 2 CommentsIn the previous post, I talked about the o3 article, and where I think they may have gotten it wrong (but it’s impossible to tell, as he didn’t publish any details on his testing methodologies, which is pretty lame). But that he may have used... -
On Radware’s Purchase of Nortel’s Alteon Assets
Posted on February 20, 2009 | No CommentsRadware’s CEO Roy Zisapel was kind enough to speak to me earlier today regarding the Radware purchase of Nortel’s L4-7 assets (i.e., the worst kept secret in IT). The deal was pretty what had been theorized, although I think the biggest surprise was that Radware... -
When Your Load Balancer Has A Short Attention Span
Posted on November 20, 2008 | 5 CommentsThe ability for a load balancer to peer into (and potentially manipulate) the HTTP headers of incoming connections was once an advanced feature, but now is fairly commonplace. Â Most often it’s used in cookie -based persistence, but it’s also used in web switching, true-source IP... -
Mega Proxy Not So Mega, Akshually
Posted on September 15, 2008 | 7 CommentsApologies for the LOLcatspeak. I’m incapable of helping myself. The driving force behind Layer 7 persistence (keeping an individual user tied to a specific server in a server group based on HTTP headers instead of IP address) was the dreaded AOL Megaproxy issue. AOL had...