Previously, I mentioned that I was unable to remove the FAX= portion of the string produced by Cisco’s $s$ (or $d$) macro in a T.37 store and forward fax configuration. That’s still the case. I have found no way of doing this inside IOS. If it’s possible, I’ve overlooked it or it’s a hidden command. What I have done, is use Sendmail on a Linux server to rewrite the recipient address. The impetus for this was a recent conversion to Google Apps. Unfortunately, Google does not permit addresses that contain an = sign.

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I track security updates for the following vendors: Apple, Cisco, FreeBSD, Microsoft, Red Hat, and Sun Microsystems. I chose these vendors based on my own needs for the networks and systems I manage. I’ve also found that updates from these vendors tend to catch the major updates necessary for common software applications. If you have other vendors you would like me to provide updates for, send me a message.

If you have an interest in information security from both a technical and managerial level, check out Principles of Information Security. It does an excellent job of presenting material for both audiences.

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If you get this error when trying to save something in the Django admin, it’s probably because you forgot to synchronize the database after adding the admin application. If you are using a pre-1.2 version of Django, you can simply:

$ ./managy.py syncdb

Django 1.2 (which is currently in alpha) adds multi-database support. If you want to synchronize a specific database, you can specify that on the command line:

$ ./managy.py syncdb --database=default

I was recently working with a GPS device that returned coordinates in milliarcseconds (mas). Unfortunately, not all mapping applications (Google Maps, for example) can understand milliarcseconds. Therefore, I had to convert milliarcseconds to degrees.

The key to the conversion is understanding that one degree is equivalent to 60 arcminutes (arcmin or MOA). Therefore, one degree has 3,600 arcseconds (arcsec) or 3,600,000 mas.

So, to convert millarcseconds to degrees, simply divide by 3,600,000.

I track security updates for the following vendors: Apple, Cisco, FreeBSD, Microsoft, Red Hat, and Sun Microsystems. I chose these vendors based on my own needs for the networks and systems I manage. I’ve also found that updates from these vendors tend to catch the major updates necessary for common software applications. If you have other vendors you would like me to provide updates for, send me a message.

If you have an interest in information security from both a technical and managerial level, check out Principles of Information Security. It does an excellent job of presenting material for both audiences.

Read More →