Here is another issue I encountered during my Exchange 2016 migration. A hand full of users have been getting knocked out of public folders with an Event ID 9646 and they have exceed the max of 32 session objects. What the hell does that mean? Why only a few users?
Investigating Event 9646
The Monday after I migrated public folders to Microsoft’s new “Modern Public Folders” a hand full of users began calling me they were unable to access them. Their specific error was:
“Cannot expand the folder. Your server administrator has limited the number of items you can open simultaneously. Try closing messages you have opened or removing attachments and images from unsent messages you are composing.”
If you have been following my blog, I recently migrated my Exchange 2010 server to a new 2016 server. There have been a few hiccups along the way however for the most part the experience has been good and user disruption minimal, until I encountered Event ID 15021.
Last night during a maintenance window I applied my Microsoft updates and rebooted the server. Shortly after reboot I attempted to open Outlook and it failed with a server unavailable error. OWA and ECP both showed BLANK white screens. I began to panic a little because this is probably the IT guys worst nightmare! Working in the industry for over 20 years I put my panic aside and began my standard troubleshooting procedure.
If you have ever taken the time to read my blog you would probably know by now that I am the IT director for a mid sized accounting firm in NJ. One project on my docket this year is to migrate from Exchange 2010 to Exchange 2016. This post is just going to be a basic log of what I encountered during my install. If you take the time to read this maybe you can find a useful tip to aid in your migration woes.
Having a small shop and wearing a lot of hats here in the office tends to create a slew of challenges. Most of the time I have a ton of projects brewing so focusing on one can be difficult at times. My migration to a new Exchange 2016 server will be gradual taking about 2 to 3 weeks to complete. During the initial setup I like to let certain steps “stew” overnight to make sure there are no disruptions. I also like to be sure I have a contingency plan to undo any unforeseen issues.
I am knee deep in an upgrade from Exchange 2010 to Exchange 2016 in the office. There have been many challenges that I will be addressing in another post, however I thought this one regarding iOS 11 to be important enough to write about it today.
Cannot Send Mail. The message was rejected by the server.
I have one user on the network that is receiving this message when they attempt to forward or reply to their mail on my exchange server. When composing a new message the mail is delivered as expected. The fact that this is a new server and the user was migrated just days before led me to believe the issue was on my end.
Restart IIS with an IISRESET command
Remove the email profile from the iPhone and recreate it
Restart the entire exchange server
Review the log files for any clues.
None of the above was able to fix her issue. Further more, my own iPhone was on iOS 11 and at least a dozen other users had upgraded and their devices were working properly.
Everyone has sensitive data stored on their workstations at some point in their lives. It could be something as simple as a credit card statement or maybe a scanned copy of your drivers license. No matter what data you may have lurking on your hard drive here are some simple tips to make sure when you want it gone your data is securely deleted forever.
When I delete files, why are they not removed forever?
Deleting a file is not as simple a process as it sound. On most computers deleted files first wind up in the trash or recycle bin. This is not even close to removing anything. The process only moves your files from a live folder to a Continue reading “Securely Delete Your Files!”
The marketing department loves to put their spin on just about every product and service for sale. This is also true as it pertains to Internet Bandwidth for your home. Technology companies and computer hardware manufactures (as well as other manufactures) seem to think that we are all stupid sheep, and rather than educate us properly on what we really need they tend to force feed product in the hopes of increased profit.
Before I begin writing about how much Internet Bandwidth you need for your house, let me first show a few examples of how the marketing machine caused misleading advertising wars of the past.
Intel vs Advanced Micro Devices (AMD)
Way back in the 90s Intel wanted to increase market share and increase sales. The marketing department came up with a brilliant “Intel inside” campaign and began educating consumers on processor clock speed (MHZ & GHZ) They touted that a 90Mhz PC was better than the 60Mz and AMD did the same. Both companies basically started an arms race to achieve the highest speed processor and consumers were led to believe faster is better. Here we are over 20 years later and we now know that clock speed is NOT a good representation of how fast a processor can perform. There are so many other factors that contribute to a FAST computer but I’m not going to cover that in this article. Marketing alone may have duped thousands into prematurely upgrading to a new computer. Continue reading “Bandwidth Wars! How much speed do I need for my home?”
This post is just a friendly reminder to update your IOS devices. As soon as your done reading this, grab all of your iPhones and iPads and run the 10.3.3 update.
Apple has recently discovered a vulnerability in the WiFi chip that could allow an attacker within proximity of your phone to run unsigned code and gain unauthorized access to your device.
Just think of the hacking possibilities as you order your morning coffee at Starbucks, or while you walk the boardwalk this summer enjoying the beach. This new vulnerability will be exploited in public spaces where a large pool of targets are in range of the attacker.
About two weeks ago Amazon had their annual Prime Day 24+ hour sale, and like many Prime members I was looking for some bargains. Recently my family had been complaining that the WiFi signal in the upstairs of my home was not strong enough. At times they would find a better data signal on the cellular network causing everyone to use a ton of extra data each month. I decided I was going to give theSecurifi Almond+a try if it was on sale during Prime Day.
If you read my blog regularly you may have noticed I wrote an article regarding Google’s mesh Wifi System. The Google system is excellent and I highly recommend it for most home users, and at $270 for 3 units the price is great too. However in my case Google Wifi was not going to cut it because I wanted to keep my primary router. (Google wants to take over the entire home network)
Over the last few years lots of game start-ups have been using the .IO domain name to launch a variety of internet games. Before I begin listing my favorite .IO games would like to give a little background regarding the domain itself.
.IO domains are administered by the Internet Computer Bureau, a domain name registry in the United Kingdom. It is assigned to the British Indian Ocean Territory, However Google treats .IO as a generic top-level domain since so many webmasters use the domain more generic than country targeted.
This fact is great for game developers!
No geographic targeting by Google for .IO domain names
Still a large pool of available domains to choose from.
Urls are usually shorter than a .com or .net ETC
Just how many .IO games are there?
At press time I was able to locate just over 170 .IO games through Google, and like most fads there are some games that are simple and loads of fun, while others are just bad clones of the popular ones.
Some of my favorite .io games:
#6 – Paper.io
This is a great twist on the classic QIX game. Loads of fun however in my opinion the game is not a true .IO game. You are playing against bots and not other players which makes the game a little predictable. After a few days of playing this game I was able to beat the bots and win! Just a little background on the original Qix game, it was released by Taitio America in 1981.
#5 – Wings.io
This game was loads of fun too. Fly around in a 2D land using various weapons to blow up your opponents. Every so many minutes the game changes between a general free for all, to an outer space free for all , to a destroy the carrier. My only complaint about this game is regarding the controls and a bit of lag. Controlling the aircraft is difficult to master and on occasion the lag makes the game unplayable.
#4 – Brutal.io
A great concept in this game, drive around this electrified board throwing your flail at opponents to kill them and then eat their energy to make yourself bigger. This is similar to the Agar.io style games, however with a welcome twist.
#3 – Skribbl.io
Back in the 90’s TV game shows were all the rage. Two of my favorites were Win – Loose Or Draw and Pictionary. We were able to watch “B” celebrities draw goofy pictures while contestants earn valuable prizes. Skribbl.io brings the fun to an .IO game. The concept has been around, and I also remember there was an IOS game that was a similar concept. What makes this game special is that its real time – live!
#2 – Slither.io
A great new take on the classic snake game. Such a simple concept yet so much fun to compete against other players. Does anyone remember when the first Snake game was released? According to Wikipedia, looks like it was some time in the mid 1970’s. My first Snake experience was on the Atari 2600 with a game called Tape Worm.
#1 – Agar.io
You might be saying this game is tired and played out, but it was my first experience playing an .IO game. I actually was pretty good at it and wasted many an hour at home and working gobbling up blobs. I don’t play as much any more, but it was great for keeping me occupied. On occasion I did experience lag at times, and wish there were “lives” so you didn’t die instantly but I guess that’s what made the game a challenge.
What does the future hold?
Maybe we can build the .IO game library into a portable device. Games could have an online and off line mode for playing on the go. I’m sure it wouldn’t be too hard to achieve with a Raspberry Pi. I am such a huge fan of the Raspberry Pi, such a useful device.
The retro hits just keep on coming! Nintendo has been banking on our love for nostalgia lately reviving tons of classic games and consoles. Late last year they released a limited production run of the NES classic that had about 30 installed classic NES games and included 1 retro controller. They were next to impossible to purchase selling out almost instantly everywhere and even bringing Amazon’s servers to a crawl. I guess the next console in the progression of things is the SNES Classic!