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Tag Archives: configuration
TACACS+, Linux, and Cisco Command Accounting
I recently finished configuring our medium sized corporate network devices to authenticate via Radius against windows Network Policy Server. Never being satisfied I wanted to take it a step further and account for administrative actions taken on our routers and switches. Basically, I want a record of every command typed into the network devices. Its like a key logger of sorts for your Cisco devices… I know Cisco and other vendors offer some commercial TACACS+ servers but all were outside of the budget for this project. Continue reading
Capturing Traffic with the Cisco ASA
I have written quite a few things lately about capturing traffic so why not write another? This time we will be taking a look at capturing data from another key place in the network; the firewall. Continue reading
Posted in Networking, Security Tagged cisco, configuration, networking, packet capture, security, testing, trouble shoot Leave a comment
Cisco Switch SPAN Port Filtering
If you have a bit of familiarity Cisco switches you may have configured a SPAN port or a monitor session in the past. A basic span port is very useful in capturing packets or passively monitoring and is a requirement for some web filtering services such as Websense. Today, I want to focus on the SPAN session from a packet capturing standpoint.
If we mirror a switch port that sees a high volume of traffic simply mirroring all of that traffic to our packet capturing port could be too much for our capture system to consume. Fortunately, there is a way to do this through access control lists on the switch itself. Continue reading
Posted in Networking Tagged cisco, configuration, IOS, packet capture, testing, trouble shoot 4 Comments
Disable Domain Lookup on Typos
Don’t you hate when you type a command incorrectly and your Cisco IOS device seems to take forever to time out and give you back control? There is a way around this without fully disabling domain lockups! Continue reading
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