Tweak Your Launchd With Lingon

Thursday, July 31, 2008

In a previous post I showed how to write some custom firewall rules, and use a hack to get it to load automatically. With Leopard the hack to load it broke.

In steps a great new app for the system tweaker called Lingon ( This handy little app lets you configure plist files and install them with just a few clicks.

Just select new, give it a name, give it a command to execute, select from a list of options how you want to to run and away you go. It even has an expert mode to dig deeper.

Ubuntu on VMWare Fusion Makes Me Oh So Happy

Wednesday, May 2, 2007

My initial impression of VMWare Fusion is just, wow. While Parallels was the first out there, VMWare is now bringing their deep virtualization expertise to OS X now. The latest public beta really delivers on the Linux side. While Parallels seems to have their focus on the Windows market, VMWare has been building for the Linux market as well.

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OmniFocus: GTD Deliciousness

Tuesday, May 1, 2007

The Omni Group has posted a demonstration video of their upcoming GTD (Getting Things Done) product OmniFocus. For those who are not familiar with the GTD methodology, it is based on a productivity book by David Allen called Getting Things Done: The Art of Stress-Free Productivity, and popularized by Merlin Mann over at 43 Folders. The basic goal is to get everything out of your head and into some trusted task management system so that you can stop stressing about it.

There are a bunch of systems out there based on this methodology, but this one looks like the right balance of organization, and not too much overhead. Hopefully it lives up to the promise and hype.

TextMate Blogging Bundle workaround

Thursday, April 26, 2007

I like to use the blogging bundle from the great text editor TextMate to do my posting here. The other day I encountered an error that gave me some problems, and I just want to point out a workaround. After posting to this blog, I received and error that went something like this…

Received exception:Wrong size. Was 1275, should be <unknown>

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Setting Your MTU

Wednesday, April 25, 2007

So to follow up with the previous post about MTU and MSS, I wanted to show you how to set the MTU value on your computer. On most Unix-like boxes it is a fairly straight forward process to change your MTU. On Windows it gets a little trickier with registry changes and such things that can brick your computer.

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Busy This Week, Here’s A tcpdump example

Friday, April 20, 2007

I have been behind in my posts, and I have quite a few items to get posted. Today I wanted to walk through an example of tcpdump can be useful when tracking down malicious traffic on your network. I am going to use the example of IrnBot to demonstrate a handy technique. IrnBot (named after the Scottish drink IrnBru), also popularly known as Rinbot, produces a lot of traffic on port 1433, 2967 and 139. It also opens up a connection to irc servers on the outside over port 8080.

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Getting stats with awk, sort and uniq

Saturday, April 14, 2007

I find myself sorting through logs all the time, and I have developed a couple of tricks for pulling the information I need out. With a little awk, sort and uniq magic you can get a great deal of info out of your logs.

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More Fun With tcpdump and Resets

Tuesday, April 10, 2007

Here is another handy little trick for tcpdump that will help you identify some potential network issues. Often times when there is some trouble along the line you will see reset connections. This happens for many reasons and can be an indication of everything form a network program to a crashed application that suddenly stops responding.

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Quicksilver Setup

Friday, April 6, 2007

When I was getting started using Quicksilver I was always hearing about all the great things it would do, but it was a struggle to get it set up the right way to get at that functionality. In order to prevent that struggle for others I am including my basic set up.

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Selling the Quicksilver Magic

Friday, April 6, 2007

I keep telling everyone they need to try out Quicksilver, that it is the most amazing app. Then they ask me what it does, and I generally say, “it’s hard to explain.” Which it is. Then I fumble around to demonstrate a few things that never seems to do it justice. I need Ron Popeil to pop out and say, “but wait, there’s more.”

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