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One of the main weapons of organized crime on the Internet is the use of junk email, also called spam. Hackers use spam for a number of purposes such as selling counterfeit products (medicines, particularly) to steal your personal or financial information, or to infect your computer with spyware and malware. This malicious software can then hijack your computer and your Internet connection to help propagate itself.
Pen testers beware. Whether you believe you know and understand all the potential legal issues, read on. First of all, a penetration test or “pen test” is a method that’s used to evaluate the security and/or vulnerabilities in a network. This test is normally conducted externally wherein the tester is attempting to hack a network or computer. Breaking into computers and networks is illegal under the Computer Fraud and Abuse Act (CFAA), and depending on your activities and other factors, other federal laws and state laws may be broken.
As I’ve stated before, I like Border Gateway Protocol (BGP). I think it’s an interesting protocol, and yes — it’s complicated, but I guess that part of why I like it. There are a lot of knobs to tweak in BGP, maybe too many, but that’s another post. Anyway, we are now running BGP version 4 and it has had extensions written that support more than just IPv4 unicast routing. We now have IPv4 multicast, IPv6 unicast and multicast, VPNv4, VPNv6, and a few others.
Having options in life is usually a good thing. Do you want a cheeseburger or pizza for lunch? Water or sweet tea? And, if you’re going to take a Microsoft certification exam, do you prefer to take it at a Pearson VUE Authorized Test Center or in the comfort of your own home or office?
Where should you apply the CSS, and why are there two places to apply it? One approach is to pick one of the parameters and apply the permissions there. Quite often, an administrator will pick the phone-level CSS and configure it there so that it applies to all calls made from all lines. The goal is to specify what partitions are allowed to be called.
In this series, we are looking at six things that can trip up project managers. We’ve covered the hazards of overcommitting, how to provide feedback, the importance of taking responsibility, staying focused, and what leading from the front can actually look like. Finally, we’ll take a look at handling team input.
For smaller companies, configuring a dial plan to account for variations in dialed numbers is often not a problem. However, companies that are larger and more global in nature encounter a number of issues when designing their dial plan approach.
Border Gateway Protocol (BGP) is a fascinating protocol because there are a lot of things that can be done with BGP. However, there has always been an issue with BGP, which is convergence (the time the network or protocol takes to accept change). BGP was designed for scale, not speed, so it’s something that we’ve had to tolerate from its inception.
License provisioning has always been a bit of a challenge in the CUCM environment. Prior to CUCM v9.0, licensing was managed on a per-cluster basis with each cluster requiring its own license files that were tied to the media access control (MAC) address of the cluster’s publisher. This approach to license management was limiting in the fact that one cluster might have unused licenses while another cluster may be at its limit and sharing between clusters was not possible.
Occasionally I am asked to configure the ability to block calls based on Caller ID. Prior to Cisco Unified Communications Manager (CUCM) v8, the only way to block these calls was to configure voice translation rules and profiles on the gateway receiving the calls. This has changed in CUCM v8 with the introduction of an additional parameter in translation patterns: Route Next Hop By Calling Party Number.