15,800 reputation
12345
bio website mdmarra.com
location Philadelphia, PA
age
visits member for 5 years
seen yesterday

I'm a Senior Solutions Architect at a Philadelphia area IT consulting firm. I currently focus on Microsoft technologies, but I have a background in vSphere, Cisco 802.11, and OS X deployment and management as well.

I occasionally blog about work related things that interest me. Click on the website link to the left if you're interested.

Get in touch:
@mdmarra
profiles.google.com/markmarra
markmarra (at) gmail (dot) com


Jul
19
awarded  Yearling
Apr
21
awarded  Caucus
Mar
15
comment Why am I connected to 65.52.240.48?
You realize that Microsoft is headquartered in Redmond, WA right? And that they can announce IP addresses that they own from any Datacenter that they want, right?
Mar
15
answered Why am I connected to 65.52.240.48?
Feb
24
comment Hyper-v guest loses internet if host hibernates
This isn't exactly true. Performance impacts are minimal and I've had Hyper-V on my Win 8.1 laptop since they day it went RTM without issue. The host OS becomes the parent partition. This is different than being a guest OS.
Feb
24
awarded  Nice Answer
Feb
24
comment Can devices steal MAC allocated IP addresses?
There are various technologies that exist to ensure that devices on the network do not do anything intentionally or accidentally malicious. Usually, it's some combination of DHCP Guard/Snooping, 802.1x, and NAC. But there's nothing inherently built-in to SOHO routers that enable this functionality.
Feb
24
answered Can devices steal MAC allocated IP addresses?
Feb
23
comment Hyper-v guest loses internet if host hibernates
Why would you recommend VirtualBox over the Hyper-V built in to Windows 8.1?
Feb
3
awarded  Scholar
Feb
3
accepted Driving two 2560x1440 displays with Lenovo T430 and 433715U ThinkPad Mini Dock Series 3
Feb
3
answered Driving two 2560x1440 displays with Lenovo T430 and 433715U ThinkPad Mini Dock Series 3
Feb
1
comment 5GHz and 2.4GHz as different SSID's?
+1 It's also worth noting that high-end APs can be set to discard the first x 2.4GHz beacon probes from a client in order to trick them into preferring 5GHz. In this case, you only need a single SSID to support your 5GHz clients and 2.4GHz clients optimally.
Jan
30
comment Driving two 2560x1440 displays with Lenovo T430 and 433715U ThinkPad Mini Dock Series 3
@ChrisS I know you can daisy-chain thunderbolt displays, which are electrically similar (identical?) to DP when used for displays, and that Apple supports this on Intel HD4000-based notebooks. But I wouldn't be shocked to find out that they're using some special sauce to do it.
Jan
30
asked Driving two 2560x1440 displays with Lenovo T430 and 433715U ThinkPad Mini Dock Series 3
Jan
23
comment Windows 8.1 in a VMWare Workstation 10 guest's mouse is missing, but only sometimes
@RobPerkins assuming this is for professional use, you have a support contract, correct? Leverage that. If this is not for professional use, you've asked on the wrong site :)
Jan
16
comment Catch 22: Missing Acer Network Drivers
...download it on a different computer.
Jan
16
answered Catch 22: Missing Acer Network Drivers
Dec
31
awarded  windows-xp
Dec
15
comment Achieving fast boot, encryption, and battery health on a Mac portable
Hi. Author of that blog post here. 10.7.2 prevents the key from being accessed over DMA - yes. But, if the FV key isn't destroyed on sleep, then an attacker can resume the laptop and have unencrypted access to the hard disk over DMA exploits without needing your password. By destroying the FileVault key, you're negating this, because the disk is encrypted until after you unlock it on resume. Is a typically smash and grab thief this sophisticated? No. Does it hurt to be paranoid here? Probably not.