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Showing entries 1 to 10 of 10

Displaying posts with tag: servers (reset)

Bash scripting: ElasticSearch and Kibana init.d scripts
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As a follow up to the previous post about logstash, here are a couple of related init scripts for anyone implementing the OpenSource Log Analytics setup that is explained over at divisionbyzero. These have been tested on CentOS 6.3 and are based on generic RC functions from Redhat so they will work with Redhat, CentOS, Fedora, Scientific Linux, etc.

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Server Ownership Legalities
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As I reported via Twitter late last week, we encountered an issue that got some of our mail delivery delayed by about a day and a half. I’ll explain more about what happened as I believe in openness on these matters, and also the experience has educational content for others.

Our mail server doesn’t have direct external interaction, it’s shielded by two relays that handle both the inbound MX and the outbound queue. This setup works remarkably well in terms of exposure to spam and other malicious activity. As previously discussed, it appears that it’s more difficult to make mail server infra more resilient without expending lots more time/effort and infrastructure expenditure. Just because of the way the common tools for mail delivery and imap are built, having two or more of each in a semi-active setup gets quite complex. Complexity is in itself a risk so it has to

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Mixed signals in IT’s great war over IP
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Recent news that Microsoft and Barnes & Noble agreed to partner on the Nook e-reader line rather than keep fighting over intellectual property suggests the prospect of more settlement and fewer IP suits in the industry. However, the deal further obscures the blurry IP and patent landscape currently impacting both enterprise IT and consumer technology.

It is good to see settlement — something I’ve been calling for, while also warning against patent and IP aggression. However, this settlment comes from the one conflict in this ongoing war that was actually shedding some light on the matter, rather than further complicating it.

See the full article at TechNewsWorld.

2012 to be year of Linux domination
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Previously, I’ve called out years for non-desktop Linux in 2008, Linux in both the low and high-ends of the market in 2009, ‘hidden’ Linux in 2010 and last year, cloud computing in 2011. For 2012, I see continued growth, prevalence, innovation and impact from Linux, thus leading to a 2012 that is dominated by Linux.

I expect to see nothing but continued strength for Linux and

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PuppetConf and the state of devops
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It’s been some time now that we’ve been talking about devops, the pushing together of application development and application deployment via IT operations, in the enterprise. To keep up to speed on the trend, 451 CAOS attended PuppetConf, a conference for the Puppet Labs community of IT administrators, developers and industry leaders around the open source Puppet server configuration and automation software. One thing that seems clear, given the talk about agile development and operations, cloud computing, business and culture, our definition of devops continues to be accurate.

Another consistent part of devops that also emerged at PuppetConf last week was the way it tends to introduce additional stakeholders

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CAOS Theory Podcast 2010.11.12
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Topics for this podcast:

*Our latest CAOS Special Report – Control and Community
*Red Hat releases RHEL 6
*Symbian and Oracle highlight community challenges
*The latest on government adoption of OSS from GOSCON
*Open core issue continues, now with Linux and evil twins

iTunes or direct download (31:02, 8.5MB)

Is emacs not coloring your Python comments?
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This is a simple matter with a simple solution that might help someone save time and confusion. Emacs wasn’t coloring my comments correctly so I went ahead and had it change them to red-italic. If you are having similar issues you can drop the following into your home directory’s .emacs file. Enjoy. Keep in mind that if you are using emacs in a terminal session as opposed to the X-server gui then you will not see the italics.


(global-font-lock-mode 1)
(custom-set-variables
'(gud-gdb-command-name "gdb --annotate=1")
'(large-file-warning-threshold nil))
(custom-set-faces
'(font-lock-comment-face ((((class color) (background light)) (:foreground "red" :slant italic)))))

Kontrollbase user’s group on Brijj.com
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We have a new users’s group on Brijj for anyone that wants to keep up to date with discussions and wants to increase their network profile on the site. Join now: http://www.brijj.com/group/kontrollbase-users
Sweet new Sun storage stuff on Monday, Nov 10th
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FYI, Sun is announcing some sweet new storage stuff on Monday at 3:30pm PT.

I’m reviewing a few of the things they’re announcing, and hope to publish my thoughts here soon (one of them joins my production network tonight if all goes well). However, I’m at Disneyland with my kids (first trip!) from Monday through Thursday, so I don’t know (yet) when I’ll be able to write them up. Bear with me if it takes a few days.

But the gear is exciting, and the direction Sun is headed is even more exciting!

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Servers are too fast!
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We got a couple of new servers at Solfo recently which showed me one of the reasons virtualization is so popular now: Servers are too fast!

The "standard issue" CPU is now a quad-2.5GHz CPU, so in each server we have 20 GHZ CPU and 32GB ram (at less than $50 per gigabyte it's too cheap to not just fill it up and be done upgrading). Just a few years ago the CPUs we were getting were "only" dual 2GHz, for ~8GHz CPU per box. That's a big increase!

In each "tier" of the application (app servers, db servers, search servers) our main reason for having more than one or two servers is redundancy / high availability - never lack of CPU and rarely because we need more memory.

Here's from one of our webservers (virtualized with Xen with 6 of the 8 CPUs on the "real" hardware).

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Showing entries 1 to 10 of 10

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