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Blog
02 // 01 // 09
Creating a Self-Signed SSL Certificate for Microsoft IIS

I wrote a previous blog entry that gave information creating a self-signed SSL certificate with Apache. I recently also had to create a self-signed SSL certificate for Microsoft IIS. It turns out that this is really easy.

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Blog
01 // 31 // 09
NAC Architectures Presentation at C-MUG
Chesapeake Netcraftsmen hosts the monthly Cisco Miad-Atlantic Users Group (C-MUG) meeting. Last month we had a presentation on NAC Architectures and on Troubleshooting ASA. You can view the presentation slides at the  C-MUG Archive. Posted by Rob Chee
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Blog
01 // 23 // 09
TCP and UDP Ports used for the Cisco VPN Client
The Cisco VPN client is the client side application used to encrypt traffic from an end user's computer to the company network. IPSec is used to encrypt the traffic. When using standard IPSec, IKE is used for the key negotiation and IPSec to encrypt the data. IKE uses UDP port…
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Blog
01 // 06 // 09
Cisco Mid-Atlantic Users Group Meeting – Jan 15 & 16
On Jan 15 and 16, Chesapeake Netcraftsmen will be hosting the Cisco Mid-Atlantic User Group meeting. For more details, go to our Cisco Mid-Atlantic User Group page.Below are the speakers and topics:
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Blog
11 // 07 // 08
Microsoft WSUS Guide for Cisco NAC Deployments
Microsoft Windows Server Update Services (WSUS) provides a method for managing Microsoft updates for company computers. Within a company, there are one or more WSUS servers that gets updates from Microsoft. Computers, within the company network, check in with this WSUS server to get their Microsoft updates.
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Blog
08 // 19 // 08
Fun with Boolean Expressions in Cisco NAC Appliance Rules

This is an example of how to handle a tricky boolean expression with NAC Appliance rules. I'll lay out a scenario and focus on the rule creation. I'll cover the other aspects in future blog posts.

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Blog
06 // 13 // 08
DMVPN with NAT

It looks like Cisco has been fixing NAT issues with DMVPN. They fixed the NAT issue for spokes talking to the hub using NAT traversal. This is the same method that VPN clients use. It uses UDP port 4500 to send the IPSec traffic instead of IP protocol 50 (ESP) and IP protocol 51 (AH).

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