Can I upgrade to windows 7? Here is how to check

In our testing at Corneredge Windows 7 has performed well.  I’ve already loaded it on two machines that could not even run Vista and they are running great.

SO, I’m tempted planning to upgrade my workstation.  Microsoft seems to have really done their homework with the upgrade this time, and I’m looking forward to the features in windows 7.

If you are thinking the same way, download this tool to get a nice checklist of what you need to do before installing windows 7.

Windows 7 Upgrade Advisor

Trace a DNS lookup path

While working through some DNS lookup inconsistency today, I was reminded of this tip that allows you to trace an entire DNS lookup.  Normally I just do an NSlookup, but I wanted more information.   DIG is a command that’s built into Linux (and therefore MAC) So I hopped on my Mac and ran the command like this:

>Dig +trace

results look like this:


; <> DiG 9.4.1-P1 <> +trace
;; global options:  printcmd
.                       505277  IN      NS      A.ROOT-SERVERS.NET.
.                       505277  IN      NS      B.ROOT-SERVERS.NET.
.                       505277  IN      NS      C.ROOT-SERVERS.NET.
.                       505277  IN      NS      D.ROOT-SERVERS.NET.
.                       505277  IN      NS      E.ROOT-SERVERS.NET.
.                       505277  IN      NS      F.ROOT-SERVERS.NET.
.                       505277  IN      NS      G.ROOT-SERVERS.NET.
.                       505277  IN      NS      H.ROOT-SERVERS.NET.
.                       505277  IN      NS      I.ROOT-SERVERS.NET.
.                       505277  IN      NS      J.ROOT-SERVERS.NET.
.                       505277  IN      NS      K.ROOT-SERVERS.NET.
.                       505277  IN      NS      L.ROOT-SERVERS.NET.
.                       505277  IN      NS      M.ROOT-SERVERS.NET.
;; Received 372 bytes from in 1 ms

com.                    172800  IN      NS      I.GTLD-SERVERS.NET.
com.                    172800  IN      NS      H.GTLD-SERVERS.NET.
com.                    172800  IN      NS      A.GTLD-SERVERS.NET.
com.                    172800  IN      NS      B.GTLD-SERVERS.NET.
com.                    172800  IN      NS      F.GTLD-SERVERS.NET.
com.                    172800  IN      NS      G.GTLD-SERVERS.NET.
com.                    172800  IN      NS      M.GTLD-SERVERS.NET.
com.                    172800  IN      NS      K.GTLD-SERVERS.NET.
com.                    172800  IN      NS      D.GTLD-SERVERS.NET.
com.                    172800  IN      NS      E.GTLD-SERVERS.NET.
com.                    172800  IN      NS      J.GTLD-SERVERS.NET.
com.                    172800  IN      NS      C.GTLD-SERVERS.NET.
com.                    172800  IN      NS      L.GTLD-SERVERS.NET.
;; Received 511 bytes from in 333 ms         172800  IN      NS        172800  IN      NS          172800  IN      NS
;; Received 141 bytes from in 931 ms  300     IN      CNAME          14400   IN      NS          14400   IN      NS          14400   IN      NS
;; Received 180 bytes from 123.456.234.123#53( in 1021 ms

How to virtualize an old computer

As developers and systems engineers we use an immense amount of software tools and applications.  Transfering to using a new computer seems like it can take months before you have “all you need” for our daily tasks.

When I took delivery of my new laptop in January I struggled with this issue.  My old machine had been in place for 3 years and now I was faced with starting fresh.  64-bit Vista on my laptop also presented a challenge for old applications I used.  Not to mention that old PCanywhere, old VPN connections, etc…

SO, I decided to virtualize my old laptop.  I can litterally run that computer in VMware faster than I could before, and I don’t have to worry about old applications or old VPN configurations for customers, they all just work!

So how do you do it?  Simply install the free Vmware converter on the machine you want to virtualize and point it to your nearest VMWare workstaion or server.  I highly recommend this, it was a truely painless process.

Fore more information check out these sites:

VMware converter site

How to run VMWARE converter step by step

SCAM ALERT – Corneredge will NOT email you like this for mail setting changes

Attention customers, this email is a SCAM, do NOT click on this link.   We do NOT communicate changes this way.  The scam is re-directing you to a UK site and phishing for your information.  Do NOT click on this link.

SPAM email scam:


Dear user of the mailing service!

We are informing you that because of the security upgrade of the mailing service your mailbox (YOUR EMAIL) settings were changed. In order to apply the new set of settings click on the following link:

Best regards, Technical Support.


AND This email:


You have (6) New Message from Outlook Microsoft

– Please re-configure your Microsoft Outlook Again.

– Download attached setup file and install.

OR this email:


On October 22, 2009 server upgrade will take place. Due to this the system may be offline for approximately half an hour.

The changes will concern security, reliability and performance of mail service and the system as a whole.

For compatibility of your browsers and mail clients with upgraded server software you should run SSl certificates update procedure.

This procedure is quite simple. All you have to do is just to click the link provided, to save the patch file and then to run it from your computer location. That’s all.

You have (6) New Message from Outlook Microsoft

– Please re-configure your Microsoft Outlook Again.

– Download attached setup file and install.

Trade your netbook for speed, size and performance

Netbooks might be convenient, but they are slow, too small, and lack the performance you really need to crank things out.

I agree with Michael Dell’s assessment here, netbooks are just smaller accessories to real machines you need.

Real laptops are becoming so fast and economical that netbooks will soon be un-necessary as well.

Postini mail delays and Google sustainability?

Postini (Owned by Google since 2007) is a great hosted email and archiving service for email that many businesses rely on for security, spam filtering, and email storage.

There have been increasing delays reported Tuesday (10/13) this past week of up to 4 hours with email and very overloaded support etc… customers have been very frustrated.  Google is working on resolving the delays and has finally communicated acknowledgement of the situation and are working as fast as possible to fix it.  If you are a customer experiencing a problem, please go to the Postini Support Portal to work with them directly on it.

This begs the question again this month… Are these widely used and free application services really safe to rely on for your business?  Is the Google model sustainable?  Could you afford a 4 hour delay on email yesterday?  I’d like to say, sure, I’ll pick up the phone, but in this economy that could really hurt.

comcast DNS problems and OpenDNS

Since August I’ve been seeing some pretty spotty and in-consistent DNS service at my house.  I run Comcast cable internet, and finally got sick of slow DNS response times, timeouts, and failures.

I learned that Comcast has decide to centrailze and essentially “customize” our DNS service so when something is not found we are re-directed to their own search page.

Here is some more information:

Comcast Re-direction goes nationwide

Your Rights with comcast DNS Re-direction


Re-direct your DNS to an outside service like Open DNS.  I did this and my problems are SOLVED!

Here are the instructions for you newbies:

Open DNS Step 1

For advanced users, just use these servers:

Fast DNS lookups are here again!

pfSense Firewall Settings to Allow Internal Access via Public Name and IP Address

OK, who hasn’t tried to get to a website on your internal network using the public name or sometimes IP address when troubleshooting.  sure enough, “Page not Found” shows it’s head.  But i know it’s there and running, i can get to it using the internal IP or with a modified hosts file.  well, a lot of firewalls by default don’t redirect outgoing traffic back into the network.  Well, if you are using a pfSense (a FreeBSD based OS focused on firewall and routing tasks), this is a very simple fix.

Assuming you already have the port forwarding set and the site is accessible from the internet, there is only one check mark you need to remove to get this working from the inside.  Start by hovering over the “System” in the menu bar, then click “Advanced”.

Home Page of pfSense firewall

Home Page of pfSense firewall

From there, scroll almost all the way down to the “Network Address Translation” section, and uncheck the “Disable NAT Reflection” option.

pfSense System -> Advanced -> Network Address Translation

pfSense System -> Advanced -> Network Address Translation

Now you will be able to type the public name or IP address into your browser and be able to see the page being hosted on your internal LAN.  No more keeping hosts files to keep things easy, which sounds even easier to me.