Linux

I've been using Linux/Unix for many years. I've always had a strong interest in technology in general and computing specifically.

These are my opinions. Opinions are like noses, everyone has one, and they all smell.

Enjoy your visit.
July 2017
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Replacing failed software raided drive

I referenced these instructions to remind me how to replace a drive.

In my case the output of mdstat looks like this:

# cat /proc/mdstat
Personalities : [raid1]
md2 : active raid1 sda2[0] sdb2[1]
33615936 blocks [2/2] [UU]

md1 : active raid1 sda3[2](F) sdb3[1]
2096384 blocks [2/1] [_U]

md0 : active raid1 sda1[0] sdb1[1]
128384 blocks [2/2] [UU]

unused devices:

So I have three partitions on

keep reading Replacing failed software raided drive

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Nagios monitoring mysql

I was asked by a client to configure nagios to monitor two database servers, running on Redhat
Enterprise Linux 5. Here are the steps, including a couple mis-steps to get it working. Nagios
was already set up and running on a server called monitor, which is running CentOS5.

I had two options. I could directly monitor the databases

keep reading Nagios monitoring mysql

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Redhat Enterprise 5.4 Released

This is at it’s heart an update to RHEL 5. But Redhat is promoting it as “the first product to deliver commercial quality open source virtualization featuring Kernel-based Virtual Machine (KVM) hypervisor technology.” The kernel version is still 2.6.18, with backported patches. Redhat is promoting upcoming Red Hat Enterprise Virtualization products along with RHEL 5.4

keep reading Redhat Enterprise 5.4 Released

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XML Flaws disclosed

http://www.sdlinux.com/2009/08/xml-flaws-disclosed/

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Home

Well there’s a new look here at LinuxGeek.net. I decided to join the next step in internet evolution and create a blog. I don’t know how well I’ll do at blogging. First I need to get all my old content over here, then I can start writing.

If you’ve been here before then you know this

keep reading Home

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