Earlier today we had a minor issue on a development server that generated around 175,000 emails dumped into a Postfix queue in a short amount of time. I needed to first analyze the emails and second clear the Postfix queue. Below is information on how to learn more about the emails in the Postfix queue, what domain they are being sent to, and last but not least delete those emails from the queue if they are not needed.
When I first got my Dell Studio XPS laptop I would get a popup asking for me to specify what was being inserted into the audio jack. At some point I must have reconfigured this and forgotten exactly how I did so though I did remember that it was something to do with reconfiguration pop-ups. After searching around I finally found where you can enable or disable the Audio Jack Reconfiguration Pop-Ups on Windows 7. Follow the directions below to enable the reconfiguration popup on Windows 7 with the IDT software installed.
The next tool up for review in the DNS section of the Backtrack 4 menu is a short script called lbd.sh. This is a small shell script with only one purpose and that is to check whether a domain is using load balncing. A common host in front of a bank of Web servers may be a load-balancing device or a Web redirector, so this information can be good to know.
I recently had a client who kept complaining that their office server was randomly rebooting through out the night. I knew when I had done the install of server 2003 I had turned off auto updates so that I could control the update procces myself but the problem sounded like auto updates. Once I did a little investigation I noticed that auto updates was still on and when I tried to change it via the control panel all the options were grayed out and I had no control. I then remebered that active directory’s group policy determines pretty much every thing on a domain controller and since I had just reused the existing policy when I did the reinstall, the automatic updates were still on.
In this article I will show how to turn off auto updates on a domain controller running active directory:
A few weeks ago I wrote a article on disabling the caps lock key in Windows. I decided since I have been writing some Linux articles I may as well show a way to do the same thing in Linux. Its a short, quick fix but it can be useful if you hate capslock like I do.
Below I outline the steps to disable the key: