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RDS Aurora Scaling

This week we found ourselves in the wonderful but awful spot of having a lot of traffic hitting our DB servers. Its good because we are getting our customers moved over to AWS but bad since that means we need to scale up our RDS instances. After some panicked moments and a couple of hot fixes,…

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Apache 2.4 + Opcache + APCu = 502?

So last week we had a puzzling bug relating to PHP and it’s modules. We have the following setup on AWS: Ext ELB -> Nginx (rate limiting, multiple SSL termination) -> internal ELB -> Apache / PHP We have multiple stores on these apache boxes along side our admin interface and what was puzzling was…

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Zabbix Warning: Less than 25% free in the configuration cache

Because I always forget how to fix this issue and have to research it every time I come across it, I thought it was time to blog about it. So this morning I got the error on our new-ish zabbix server that our config cache was getting full. This didn’t surprise me since we’ve been adding…

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Foreman 1.8 and Puppet Run

I’ve had a lot of trouble getting The Foreman to do a Puppet run when I click on the gui button. Finally figured it out and wanted to document it in case someone else is struggling with this issue too.   My /etc/foreman-proxy/settings.d/puppet.yml:

The biggest issue I finally realized was that when foreman tried to…

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Zabbix & OSX 10.5

Quick link for a zabbix 1.8 agent for OSX 10.5 zabbix_agents_1.8.13.macosx.amd64.tar —— Update —- Couldn’t actually get this running but I’m going to keep tinkering with it. I couldn’t get OS X to actually load the agent.

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Installing System Center 2012 R2

When I told my boss that I’d test System Center 2012 R2 I didn’t realize how many prerequisites needed to be install. Thankfully someone else has posted a great blog posting on how to configure this product. Check it out here

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Nginx Proxy_pass and gzip

So on Friday I deployed a new set of HA nginx proxy servers for our application and we quickly discovered that we were having issues with headers in regards to a cookie. After some research and trial & error I found that by default gzip is not enabled. Our application is using gzip and nginx didn’t…

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My keepalived wrrp_script lessons

So I’ve been working with keepalived for a quick and dirty HA setup and wanted to record the issues I had while setting this up. So the install of keepalived is really easy with apt-get, what I ran into was when I wanted to run a script to check to see if nginx was alive….

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Puppet on Windows Server 2012

I’ve been pondering the idea of running puppet on my Windows servers since I learned about it at PuppetConf last fall and today I had a few moments to dive in. I started with something simple, I wanted to copy a PowerShell script to all my Windows boxes. I was honestly a little nervous and…

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Puppet and Bareos make great backups

I’ve been searching for a replacement for our Arconis backup solution. Not only has Acronis failed me on multiple occasions to backup it’s clients but it also failed during critical moments when I needed to restore a machine or at least files on that machine. So for the past couple months I’ve looked into alternatives…

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