Category: Today I Learned

Simple Mail Testing

Insert a witty comment about how it’s been so long since my last post. In my travels, I came across a handy file which I felt was share-worthy. Have you ever had a need to quickly test an SMTP¬† connection via telnet or netcat? I have. If you don’t have a file like this already, …

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Logitech Modifier Keys for Mac

I started a new job last month, and they issued me a MacBook Pro — the other choice was a smaller Windows laptop, and since I prefer the *nix environment I chose the Mac. I could make plenty of arguments or even just observations, since it’s been close to ten years since I last used …

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Bugs in limits

I came across a new one yesterday; well, not really a new one, but a not particularly well documented one. It seems to be a problem that was found in CentOS 5, and has at least on some level persisted into Cent 6 as well. The problem as noted stems from attempting to raise the …

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Foreman on Debian – Install issues

A few weeks ago I noticed that as a result of an upgrade, puppet-dashboard had removed itself from the system it ran on. No big deal, I wasn’t really using it and it put a number of more important packages on the removal list if I made the required changes to keep it.¬†Since then I’ve …

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Nagios 4 on Ubuntu 13.10

Last night I installed Nagios 4 on an Ubuntu 13.10 VM running on my VMWare ESXi machine. I followed through the steps listed here, which worked overall: https://raymii.org/s/tutorials/Nagios_Core_4_Installation_on_Ubuntu_12.04.html I did run into a small number of issues which should be documented for anyone trying this on a later install of Ubuntu, but raymii isn’t allowing …

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Changing Puppet Masters

As users of puppet, occasionally we need to migrate nodes from one master to another. In my case I’m decommissioning my old puppet server having stood up a new one, as a part of my “migrate home” project. I ran into a couple of minor issues, but this is essentially the process for moving a …

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Moving MySQL Users and Databases

Occasionally, as part of my day-to-day duties, we migrate users from one shared hosting server to another. In general we use the cPanel/WHM “Transfer account” feature. On occasion, this doesn’t work quite right and manual interventions must be made. When the Transfer Account feature breaks a user account, it’s annoying. Usually most of the transfer …

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