Since posting about the Comcast Broadcast storm, a steady stream of e-mail continues to arrive about Comcast’s other troubles…specifically DNS. Preston Gralla asks Why can’t Comcast run DNS? I don’t know why Comcast continues to have DNS issues, but you can switch to a free DNS provider such as OpenDNS.
I’m still trying to figure [...]
SunRocket, a VoIP provider, ceased operations and stranded all of its customers. Unfortunately, many of those customers pre-paid for their service. That means not only did their phone service stop functioning, they are unlikely to see any refunds for pre-paid service. And while Vonage is often mentioned as a replacement option, it looks like Packet8 [...]
A quick web search should give you a taste for both the horror and success stories that a Vista upgrade brings. Before your IT staff decides that Vista is your standard, make sure they didn’t forget to test these items:
Does Vista work with your VPN solution? (Specifically, does your VPN software even support Vista and [...]
I’ve been getting reports about Comcast slowness in this area for several weeks. Taking a closer look,a quick speed test confirmed that performance is awful. A look at the cable modem revealed that quite a bit of traffic was inbound without anything else plugged into the modem. A sniffer trace revealed that nothing was attacking [...]
E-mail form spam seems to be growing in popularity where automated programs fill out web e-mail contact forms. There are various opinions about why they do this including exploiting vulnerabilities for doing injection or using the form to send the spam directly.
However, for the cases I’ve inspected, I’ve observed that there is no injection attempt [...]
Cisco announced it will acquire WebEx for $3.2 billion dollars. Now it’s time to play the Connect the Dots game where everyone struggles to understand the deal on a number of levels and backs up the speculation with a series of dots (including unrelated dots) to bolster their thesis.
1. Did they pay too much?
2. Are [...]
The main message of CIO Insight’s article is that NAC could require expensive network upgrades and is not ready for prime time. The market will ultimately decide if NAC makes an impact or falls back to earth failing to escape gravity.
Before deploying a NAC solution, ask yourself some questions to determine if you’ve even picked [...]
Ed Kohler’s insight on technology advisors goes beyond gadget recommendations or upgrading an out-of-date computer.
When making major technology decisions, who are your technology advisors?
Examples of major projects include SANs (Storage Area Networks) and VoIP (Voice over IP).
Do you rely on Google, the vendor who is selling you the solution, or your over-worked IT (Information Technology) [...]
In my Illusions of Information Security white paper, I make the point that if you wanted to protect something really important (like your data), you’d want the perimeter fence (the firewall) AND the alarm system (the Intrusion Detection System). You’ve run out of excuses for failing to act.
StillSecure announced a freeware IDS. We’ll be tossing [...]
Since my post on Downtime Unaccepted, several of you have e-mailed me with your “funny” (or painfull) stories on your own self-inflicted downtime blunders.
Let’s tackle some low hanging fruit first. Subsequent posts will address increasingly complex issues.
Here are some simple things you can do to save some future embarrassment:
Replace those “inexpensive” ethernet switches [...]
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