When searching for phones in CUCM by specifying a filter on Device Pool, the CUCM returned the following error: Error occurred during find. java.sql.SQLException: A syntax error has occurred. Having [...]

Logging network activity is one of the most powerful tools in your security arsenal; it lets you confirm or deny suspicious behavior and it lets you reconstruct events long after [...]

Scenario: We have a CUCM cluster servicing disparate geographic locations and want to use the Local Route Group (LRG) feature for PSTN call routing.  We also want to ensure that [...]

On October 12, 2011 Terry Slattery will be presenting at the Enterprise Connect Webinar: Top 3 Reasons Your Network is Slow and How to Fix It.He plans to cover: The [...]

Here is my list of the top ten security mistakes that IT staff makes.  These mistakes leave your network vulnerable to attack and compromise. Mistake #7:  Not compartmentalizing your internal network.

Can a Layer 2 loop happen in your campus network? You may say, I am running Spanning Tree Protocol (STP), and it is designed to maintain a loop-free layer 2 [...]

Introduction Should you be concerned about a Layer 2 loop in your campus network? My answer is absolutely. In this article, I explain why you should take steps in protecting [...]

Here is my list of the top ten security mistakes that IT staff makes.  These mistakes leave your network vulnerable to attack and compromise. Mistake #8:  Not compartmentalizing public devices.

A lot of the discussions I’ve been reading have revolved around whether the attack “qualifies” as an “Advanced Persistent Threat,” and therefore whether the term APT has any real meaning [...]

A lot of the discussion I see has revolved around whether the attack “qualifies” as an Advanced Persistent Threat, and therefore whether the term APT has any real meaning or [...]

Here is my list of the top ten security mistakes that IT staff makes.  These mistakes leave your network vulnerable to attack and compromise. Mistake #9:  Not blocking administrative protocols.

Here is my list of the top ten security mistakes that IT staff makes.  These mistakes leave your network vulnerable to attack and compromise.

Mistake #10  No outbound Filtering