There is one very annoying limitation (ok perhaps more) if you are using Windows XP. The limitation that the MS Windows XPs format tool can only handle HDDs under 32 GB of disk space. Other OS’s like Linux or Mac OS X do not have this limitations but what to do if you want to format a disk bigger than 32GB using Windows XP?
Grab one of the most useful 3rd party applications – called FAT 32 Formatter.
Most implementations for using DomainKeys (or DKIM) and Sender ID are written and used on the level of the MTA to verify the authenticity of the message.
Now iconix has written a piece of software which allows the verification at end-user-level. That allows them to bring the whole process and system behind DomainKeys, DKIM, Sender IDs, SPF and so on from the MTA level to the end-user and in this case allows a broader mass to use the feature.
The tool has still some hick-hacks but its working quite well and the developers trying to fix problems as fast as possible. There are a lot of implementations available at the moment, for different mail programs as well as webmail systems.
If you wanna use one of the above features in your mail environment please don’t hesitate to ask the internet or drop me a message, especially if you are also one of these guys trying to give SPAM no chance. And most important, if you are using one of the incredible Ironport C-Series machines, setting up DomainKeys or DKIM verification is only a few clicks away 
Thanks to Karsten Iwen of Security-Planet.de who wrote a very good introduction about how to set up and configure AAA with the TACACS+ Service on Cisco IOS based devices.
The how-to is in German what is normally is really hard to find in the internet, English ones are really easy to get.
Have fun with the mentioned how-to AAA mit TACACS+ im Cisco IOS.
The Cisco VPN Concentrator is one of my most beloved devices from Cisco 
I do not understand why Cisco stopped supporting and selling this device, perhaps because they integrated most of the feature into the IOS. Nevertheless it is a dedicated device which is optimized only for VPN Connections.
After the a few clicks experience the VPN Concentrator should allow the users of your network to access your internal network from anywhere using VPN Dial In. What most system administrators, like me, do not like is administer another user and password database besides their Active Directory database. For this reason I collected two important sites which address this topic:
- Configuring the Cisco VPN 3000 Concentrator with MS RADIUS
- Using RADIUS Servers with VPN 3000 Products
Most important is to set the authentication profile right – like in the screenshot and don’t forget to tick “Unencrypted authentication”
The same procedure can be used for all other Cisco Devices, only difference is the configuration of the device itself.
Ich hab mich heute geärgert, dass der Windows Explorer unter WinXP auf einmal keine Miniaturansichten von PSD Files darstellen kann.
Nach langem suchen im Internet hab ichs gefunden:
- der Fehler liegt an PSP 8 – mit der alten 7er Version gehts noch ohne Probleme
- und die Lösung ist ein einfach installierbarer Patch der aus einer DLL und nem REG File besteht.
Das ganze gibts für ein Englisches OS und für das Deutsche Betriebssystem
