So I did some updates on our Exchange 2013 servers last week, and then started getting some complaints that people couldn’t see there calendar when the logged into OWA. Once you logged into OWA and clicked the Calendar, it would load a blank calendar and not have any appointments showing (you also couldn’t see the calendar list on the left side). If you tried to create a new appointment you ended up with just a grey box.
We have an Exchange admin that when he attempted to login to ECP he would get a 500 error. The simple solution was to add a mailbox to his domain admin account. Once that was done he was able to login to ECP just fine.
From reading the article belew, this might be an indication of a problem with the SystemMailbox as well.
Source: TechNet Blog
1. Go to: https://library.nagios.com/library/products/nagiosxi/documentation/268-installing-the-xi-linux-agent
2. Download the latest linux nrpe agent.
3. Extract the agent using: tar xzvf linux-nrpe-agent.tar.gz
4. CD to linux-nrpe-agent
5. Type: ./fullinstall
6. Provide the IP address of your Nagios server.
7. Add the server to Nagios.
I have an older IO Gear USB-to-Serial adapter that I have used for a long time. When I purchased it I was only using Windows laptops and never had a problem getting drivers and getting it to work. When I switched to a MacBook Pro a couple of years ago, I was able to get it working by downloading the Mac drivers. However, after upgrading to El Capitan I wasn’t able to get the adapter to work. I did some searching and came across the site listed below. The command that is described in the post didn’t work, but the comment by James Morris did get the adapter working.
- Insert or mount your Windows 10 disc.
- Open a Command Prompt as Administrator.
- Enter the following: dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs /LimitAccess
NOTE: Change “D:” after the /Source switch to the drive that contains the disc.
This should work with Windows 7, 8, and 8.1.
So we’ve had a problem at work for awhile and I hadn’t been able to come up with a good solution until today.
We have a person that works for us for a period of time and they leave the company. When they leave we start by expiring their AD Account for 30 days. After 30 days we remove the AD Account from our system. Most of the time this is fine, but every once in awhile we have that same person return to the company. So we create a new AD account and Exchange mailbox for them.
Earlier this week I started getting alerts that our Exchange 2013 server was running low on disk space for our transaction logs. When I started looking at the drive, I noticed that one of the databases was generating a new log file every 1 – 2 seconds and by the time I received the notification about the drive space we had over 460,000 log files for that database.
Had a problem with Outlook on a particular model of computer today. Whenever you tried to launch Outlook 2013 it would get to the point where it said it was “Loading Profile”, but it wouldn’t go past that point. Did a quick search and came across an article that talked about disabling Hardware Acceleration. Here is the process.
- Run regedit (Start > Run > type regedit and press ENTER)
There have time that we want to test file transfer speeds across our network. The problem is we need to use a known file size to make sure we can use the same size data in each test.
On Linux and Mac systems you can use the following commands:
300MB file (random data): dd if=/dev/urandom of=300mb.log bs=1024 count=307200
300MB file (zero data): dd if=/dev/zero of=300mb.log bs=1024 count=307200 (more…)