Author Archives: Garden

New Weekly Email

I started a weekly newsletter to share some of the more interesting links I find over the course of the week. You can subscribe here http://eepurl.com/bNRrFX

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Increasing security of openldap password hashing

I’ve been trying to figure out how to change the hashing method of openldap from SHA to something more secure (specifically SHA2). After spending hours trying to custom compile it with a special overlay I found out how to use … Continue reading

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RHEL 7 and Network Manager DHCP Issues

So at $work we’ve decided to start using DHCP for assigning addresses to our severs. I’ll write up a post on why, but I assure you, it’s a good enough reason. Any way, I noticed the other day that my … Continue reading

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Resizing root partions in VMWare

Just a quick script to resize a root partition in linux live so I can remember. I’ll be writing up a explanation of all the steps later this week. echo “1” > /sys/class/scsi_device/0\:0\:0\:0/device/rescan echo “1” > /sys/class/scsi_device/2\:0\:0\:0/device/rescan fdisk /dev/sda partx … Continue reading

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Quick redis queue size nagios plugin

I’ve been running into some issue with buffers filling up in my logstash setup (more to come later on that) so I’ve been adding a redis buffer. I still had that fill up once so I whipped up this script … Continue reading

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Data Science Tools/Tips

I was recently talking data science with a friend who wanted some good links and ideas on how to train non programmers on how to do data analysis. First thing is to determine what type of analysis is needed, visualization, … Continue reading

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Piwik and Load Balancers

Ran into an issue with Piwik not seeming to deal with load balancers and the X-Forwarded-For header. The documentation for setting up this relativly common thing is a little lacking in the official documentation, and I found it’s a bit … Continue reading

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Logstash and WSO2 Carbon Logs, dealing with Java Stack Traces

So, now that I’ve got my WSO2 Cluster setup, I get to diagnose issues. The biggest problem is that when trying to work through a cause I’ve got to look at half a dozen log files spread across half a … Continue reading

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Important NFS setting when using OSX Clients

I’ve been getting permission denied errors when connecting to nfs shares from my OSX system. According to logs on the server, it was authenticating fine, and no errors were showing up. Turns out, OSX uses a nonstandard port. So you … Continue reading

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Friday’s Cool Tools May 23rd

In an attempt to post more regularly I’m going to start a new entry going over some of the neat tools I’ve found over the week. I’m a huge fan of Notational Velocity style apps, when I can use a … Continue reading

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