Sophos UTM and the ARRIS/Motorola Cable Modem Exploit

If you haven’t heard about it by now, there is a recent exploit that allows a maliciously designed website to trigger a reset of certain ARRIS (formerly Motorola) Cable Modems.

This doesn’t affect all of them, but only a certain model. However, if you’re paranoid at all, there is no harm in blocking access to the cable modem.

There are two ways to do this: drop all traffic to the cable modem (which doesn’t affect internet traffic), or to filter out the specific URL used to do this.

And we cover both methods

Unexpected Downtime

Because I was trying to install a new graphics card on my server… It BSODed at some point and damaged system files. I’m running Server 2012 R2 Essentials, so it’s a domain controller. Somehow the […]

When it Rains

So, recently, I’ve been having issues with my server. It occasionally randomly reboots, and then fails to boot back up until I’ve powered it off for a few minutes. This isn’t good in any sense of the word. Something very wrong is happening here, and it needs to be addressed.

The up side is that when it fails to boot back up, it does have a boot code, and that indicates the issue. Specifically, it appears to be a System Timer issue, or possibly a RAM issue. As the issue is new, I seriously doubt its RAM, and I’ve already ran a full 3 pass memory test. So I’m pretty confident that it’s this “System Timer” issue, which means the board is trash and needs to be tossed/RMAed.

New X:\Files Editions

So yes, I’ve decided to do a new version for X:\Files Edition. Namely. an update for WHS2011, and Server 2012 (and R2) Essentials. There are some challenges though. I want to be headless as possible, […]

An X:\Files Edition of Server 2012 Essentials?

Though, I doubt many read this blog… I’ve been looking over the Windows Server 2012 Essentials OPK (OEM Preinstallation Kit), to see how you can customize the server for installation on new systems. And I’ve […]