Just last month, Microsoft announced that their Windows Azure Virtual Machines were no longer considered a pre-release service. In other words, that was the official notification from Microsoft that they feel their Virtual Machines offering is ready for enterprise class deployments. In fact they even offer uptime guarantees if you employ certain round-robin and/or [...]
26
Apr
Linux : Find All Files Older Than…
I recently needed to clean up a directory on my Linux box that included hundreds of files. I wanted to get rid of all the files that hadn’t been updated in over a year. At first I decided just to list the files by date: ls -lt This will list the files in long format by time [...]
06
Apr
Bash Command Lookup (\!)
I’ve recently found something relatively interesting that you can do in a bash terminal. I recently sent out an email talking about how to implement git completion’s wonderful self to work on macs. Part of that endeavor meant diving into the way that the terminal displays its information to you on your prompt. Some of the things [...]
30
Jul
Linux mdadm tips & tricks
RAID arrays are an important part of any mission critical enterprise architecture. When we talk RAID here we are talking mirrored RAID, or mirrored and striped RAID, not simply striping which gives you a larger drive from several smaller drives. While that may be great for some home or desktop applications, for a enterprise application [...]
18
Jun
Using Find To Help Manage Files On Linux
We found a system administration problem on a server today that was being caused by incorrect directory permissions. Any email that passes through the server-wide spam filter was not going through because of permissions on the /home/<domaindir-here>/etc directory. That directory needs to be owned by mail. Here is a quick way to update those directories: [...]
31
May
Upgrading Logwatch on CentOS 5
Introduction I finally got tired at looking at the thousand-plus line daily reports coming to my inbox from Logwatch every evening. Don’t get me wrong, I love logwatch. It helps me keep an eye on my servers without having to scrutinize every log file. If you aren’t using logwatch on your Linux boxes I strongly [...]
05
Apr
Finding Which Linux Packages Provide Which Files
There have been multiple situations where I find out that I need a particular file to continue with something I am doing. Most of the time this happens when I am compiling a program. I will be missing a library, or header file, or something. So I end up on search engines looking for whatever [...]
12
Nov
Logon To Your Linux Box Using SSH Keys
I’ve been recently working with AWS EC2 instances and have found that the SSH keys that they require for secure login practices actually have some nice benefits. For one thing, once I’ve generated a keyfile that uniquely identifies me on my local PC, I can use that keyfile to quickly and easily login to any [...]
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