[2005-04-28] Cisco Certification: The OSI Model Isn't Just For Exams Anymore!
There's nothing I enjoy more than teaching Cisco technologies, especially CCNA candidates. Whether it's in-person or online, everyone's excited to be there.

[2005-04-19] Cisco Routes New Routers to ISPs
Cisco Systems announced major advancements in their Internet Protocol Next Generation Networks yesterday in the form of router enhancements and new products that will allow ISPs to go the next level of service for their customers.

[2005-04-18] Cisco Takes Routers Up a Notch
Cisco Systems introduced the Cisco XR 12000 Series routers, which represents the combination of the Cisco Internetworking Operating System (IOS) XR software with the proven market-leading capabilities of the Cisco 12000 Series routers.

[2005-04-12] Basic DNS: PTR Records and Why You Care
A PTR record is what lets someone do a "reverse" DNS lookup - that is, they have your IP address and want to know what your host/domain is. At any Unix/Linux command line, you can use "dig -x" to do a reverse lookup:

[2005-04-12] Samba Problems
It never rains but it pours: I've had four Samba call in the past two days. A couple of things to keep in mind as a result of helping those folks:

[2005-04-08] Cisco CCNA Certification: Why You MUST Have Hands-On Experience
CCNA and CCNP candidates hear it all the time: "you have to get some hands-on experience to pass the exams".

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