Announcements

June 30, 2017

June 2017 DNN/Evoq and Module Security Summary

The past week has been a bit hectic in the DotNetNuke/Evoq space. Four confirmed security vulnerabilities were identified that could impact existing installations, one last week and three this week. Sadly, many sites have already been exploited by these vulnerabilities, adding a bit more urgency to the situation. Although many people are aware of the situation we have found that not everyone knows what is going on, so we thought it would be prudent to share what we know about the situation. This information is being shared both on Mitchel's Technical Blog as well as our corporate website.

November 11, 2016

Applying A Methodical Approach to Website Performance Issues

Last week the folks at PostSharp where kind enough to host me for a webinar on website performance.  For those that have attended my various performance talks over the years I'm a firm believer in following a process every time to resolve issues.  In this webinar, I discuss the beginning portions of approaching website performance issues, tips that are helpful for those with existing applications, or even those that are starting fresh.  

May 26, 2016

Resolving Issues with Security Compromised DNN Sites

Yesterday I published a blog posting about a recently re-surfaced security vulnerability within the DNN/Evoq platform.  In that post, I provided the steps necessary to mitigate the risks associated with the exploit.  If you have not yet taken the steps listed in that posting, please be sure to take those steps immediately.  This posting is geared towards the proper auditing, review, and resolution of any issues that might be present on a compromised site.  Please note, even if you do not believe you were compromised PLEASE review the first section of this post to be sure.
January 01, 2014

2013 a Year In Review

For the last 4 or 5 years I've done a year-in-review post to summarize technology happenings from the prior year as well as to help set a path into the following year.  Therefore, lets take a look back at 2013 and prepare to leap into 2014!
October 07, 2013

Blog System Changes

Just a quick update on the blog system here on MitchelSellers.com.  As you all might have noticed almost all of the articles as of today 10/6/2013 show no comments.  Due to the exponentially increasing number of spam style comments that I was receiving through the existing platform on this site I've been forced to switch to a different comment platform. This means...

December 31, 2012

2012 Year In Review

It is hard to believe that yet another year has passed and it is time for me to be writing another "Year in Review" post here on MitchelSellers.com.  It seems that each year the time goes by faster and faster.  2012 was most likely one of the fastest paced years for me professionally as there were a lot of changes and as such this blog has suffered a little bit.  As I look back at 2012 I will also share some important notes about 2013!
October 30, 2012

DotNetNuke World Review and MVP

So first of all, I'll admit I'm a bit late to the game here getting this post put together, as DotNetNuke World was almost three weeks ago.  Sadly combined with two major site launches, some travel and other things the blog just hasn't gotten the attention that it deserved.  But better late than never I thought so here it goes!
April 12, 2012

Windows Updates, Monitoring, and ASP.NET...Oops!

For those of you that are regular readers of this blog you will know that outages of the site are very, very rare with the past year showing almost 99.9% up time.  Well if you were around here this AM you will know that the record for up time was killed, with the sites being down almost 10 hours today.  In this post I'll talk a little about my experience with this as I know a number of other people across the world have experienced similar issues this morning based on my conversations with a few of them.
January 08, 2012

2011 Year in Review and a look at 2012

Over the last few years I have been trying to keep a little bit better track of usage of the content here on MitchelSellers.com as well as just keeping track of other interactions that I have through User Groups, Open Source Projects, and the like. Each year around the end of the year I try to compile a few of these items, if not for everyone that is reading things here for myself to see how things progress year to year.

January 06, 2012

Upgrading MitchelSellers.com - A DotNetNuke Upgrade Retrospective

For those of you that are regular visitors to this site you most likely noticed a number of changes to the site over the past 24 hours, including a small amount of downtime.  This was caused by changes surrounding the upgrade of this site to DotNetNuke version 6.1.2.  Now, I have worked on a number of DotNetNuke upgrades over the years, and I lost count a few years back at about 300 upgrades.  This site was by-far one of the hardest upgrades that I have ever completed and in this post I will share a bit around the growing pains that were experiences throughout the process.

October 31, 2011

DotNetNuke World and Blog Updates

It seems that the past few months have just flown by and I haven't gotten as much time to blog here as I have wanted.  I hope to start changing that here in the next few weeks as I have a large number of items that I'm looking to get out here, just trying to find the time to get it done.  But with DotNetNuke world just a little over a week away I wanted to post a quick note here about the event.

 

July 21, 2011

DotNetNuke 6.0 and You!

As many of you might not have heard yet DotNetNuke version 06.00.00 was released last night.  You can read all about it on the Announcing DotNetNuke 6.0 page from DotNetNuke.  In this blog post I'll talk a little bit about what it this release means to you as a user in the community as well as share some insights and recommendations that I have to make the transition easier, and we will finish with information on a special offer from a known DotNetNuke Vendor.

January 03, 2011

2010 Year in Review and 2011 Preview

It has been a little over two years since I did a "year in review" post, the last was completed in 2008.  I thought that it would be a good idea to start of 2011 with a review of the previous years and the items that I am proud of from the past year.  I'll then give an introduction into my plans for 2011 and the future of this blog.

 

September 30, 2010

Day of DotNetNuke An Apology

It is with deep regret that I have to announce that I will not be able to attend/present at the Day of DotNetNuke event this weekend in Chicago.  For those of you that follow me on Twitter, you may have noticed tweets from me over the past 2 weeks talking about this horrible cold that I have.  Well, at this point I am still not recovered, with only 40-50% of my voice available and day-to-day still not feeling all that well I had to make a very hard decision.

In the end, I need to continue to take things slow and relax so that I can kick this cold and be able to resume my regular schedule.  I understand that this will be a disappointment to the individuals that were looking forward to my presentations as well as the individuals that I was working to arrange meetings with.  I am also deeply sorry for the stress that my cancellation puts on the organizers of the Day of DotNetNuke event.

Over the course of the next 3-5 days I will be taking all materials from my sessions and making them available here so that at minimum you will still have the ability to get the content that was to be presented.  I will post my PowePoint slide decks with notes that would have been my talking points.

For those of you attending DevConnections I am looking forward to that event coming up in just  a little over a month, and I WILL be there for that event.  Otherwise to everyone else again I do apologize that I will be unable to attend and hope that you truly enjoy the Day of DotNetNuke event, I know it will be a great success!

July 13, 2010

Want a Free MSDN Ultimate Subscription?

Like other Microsoft MVPs I have been given a few MSDN Ultimate licenses that I can give away to individuals that I feel are deserving of it.  I have been arguing with myself for a while now about how to best determine who should receive the license, and have came up with a contest to give one license away to a reader of this blog. 

February 18, 2010

Future Blogging on MitchelSellers.com

Over the next few weeks you will see a much larger effort for me to get back to this blog and getting new content out. In addition, I have made a few category additions and changes with hopes of expanding the content of this blog a bit more. There will still be plenty of DotNetNuke related content, but I am going to try and get more content in the C# and Visual Studio areas, trying to share some tips and tricks that I use on a daily basis to help speed the development process. The following is a quick list of topics that I am working on, and will be getting posted soon, these are NOT listed in any order, so they could appear in random intervals. If you have other suggestions, please post them to the comments.

November 04, 2009

SQL Server Dynamic Pivots Article

I am proud to announce that an article that I wrote for SQL Server magazine, "Pivoting the Dynamic Way" was included in the November 2009 issue of the magazine.  The article was published in both the print and online editions of the magazine, for those of you with subscriptions I encourage you to check it out!

May 11, 2009

So you moved sites again?

As many people caught on the other day via Twitter I have moved my sites to a different hosting provider again.  One of the first questions I got before was "why did you move" or "did you have a problem with your existing host?".  I want to start off by saying that I do NOT have any issues with my old hosting provider, and that if it was not for special circumstances I would still be with them.  In this article, I'll lay out my hosting experience, and give everyone some insight in to what happens behind the scenes when I make hosting decisions.

March 02, 2009

Speaking Engagements

As we get moving into 2009, one of my personal goals this year was to get out and do more presentations to User Groups and at conferences.  Well ...
February 14, 2009

Site Upgrades and Performance Improvements

Those that frequent this site and the other sites that I operate might have noticed some periods of service interruptions over the past 2-3 days as I have been working on some infrastructure upgrades for our collections of sites.  As part of this, it was my goal to improve the "average load times" of various pages of my DotNetNue sites.  As many people will note, they have been pretty fast before, but that just wasn't good enough for me.

So, now I'm proud to say that I'm done with all of the major changes and the functionality of all sites should now be stable, I've love to get some opinions of those regular users/visitors of my sites to see if they can confirm the improvements. 

View the full article for a listing of sites affected as well as benchmark information that I have.

September 24, 2008

Major Set of Releases

Today my business sent out an e-mail to all newsletter subscribers about the most recent set of free module releases. This is my final cross-post of this information here on the blog, if you wish to stay up to date, please visit the IowaComputerGurus Newsletters page to subscribe.

June 30, 2008

Site Update and Announcement

Well as I'm sure that many of you can notice I have completed the upgrade to this site.  Tonights upgrades resulted in about an hour of downtime due to slow file transfer and network speeds.  However, many improvements have been made.  Please view the full post for details as well as the BIG Announcement!

 

Content provided in this blog is provided "AS-IS" and the information should be used at your own discretion.  The thoughts and opinions expressed are the personal thoughts of Mitchel Sellers and do not reflect the opinions of his employer.

Content Copyright

Content in this blog is copyright protected.  Re-publishing on other websites is allowed as long as proper credit and backlink to the article is provided.  Any other re-publishing or distribution of this content is prohibited without written permission from Mitchel Sellers.