Category Archive: Technical Tidbits

Nov 20 2012

whois

Here’s a tip for internet domain owners: Make sure the contact information for your domain has more than one email address.  And make sure at least one of those email addresses is not in the domain itself. If your email starts malfunctioning, you want people to be able to tell you about the problem … …

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Dec 11 2011

AT&T Microcell and Routers

Our area has never gotten good cell phone coverage.  Doesn’t really mater what carrier we used … AT&T or Verizon. When AT&T announced that it was going to be making “MicroCells” available, I decided to get one … as it would help our cell phone coverage. The MicroCell has been working fine for more than …

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Jan 13 2010

Reminder About Backup MX’s

This is just a reminder to those people who run their own mail servers … make sure your backup MX’s are running properly.

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Dec 06 2009

Creating Bootable Ghost Recovery USB Flash Drive

Those of you who follow my blog (or know me in person) are well aware that I’m a big fan of Norton Ghost backup software. One of the major problems I’ve had with Norton Ghost is the fact that it only provides the ability to create a recovery CD … it doesn’t provide any ability …

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Jul 25 2009

Wake On LAN

Intel NIC Power Managment

There is apparently going to be a bit more getting used to this new laptop. The other day, before I went to bed, I put my new Dell Latitude E6400 into standby mode … I’m 99% sure I did this. The next morning, however, when I went down stairs I found my laptop powered on. …

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Mar 21 2008

iPhone Buzzing

Radio Inteference

Ever since I got the iPhone, I’ve noticed that it causes nearby speakers (radios, desk phones, etc) to emit a buzzing noise. The odd thing is, my boss Brian’s Blackberry does the same thing. I finally found the reason why: The cause of this buzzing has to do with GSM’s “time division nature. The ever-knowledgeable …

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Mar 14 2007

Clean up /tmp

Recently I noticed that there’s a lot of temporary files in the /tmp directory on my mail server … all the files have spamassassin in the file name. I figured that in some cases, SpamAssassin (or programs it calls) isn’t cleaning up properly. I whipped up this script that will clean up any spamassassin files …

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Feb 05 2007

Thunderbird message list out of sync

Sometimes I find that the message list in Thunderbird gets out of sync with the message bodies. When this happens, if I click on a message in the list, the message body that is brought up doesn’t match the subject. I found a easy solution … just shut down Thunderbird, delete the corresponding .msf file …

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Jun 16 2006

mod_auth_pam and flatfile

The other day I found myself needing to restrict access to a web site to only users who had logins to a system … while also allowing other users, who didn’t have logins, to access. mod_auth_pam was the solution for the users with a login … and standard ‘htpasswd’ access was the answer for the …

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May 31 2006

Say NO to Backup MX's

Word of advice … with a few exceptions, there is absolutely no need for most organizations to implement backup MX’s. In fact, if they are not setup and managed very carefully, they can cause significant harm to an organization. In the past week I’ve had two people on my mailing lists get their subscriptions suspended …

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