Verse Of The Day:
But, “Let the one who boasts boast in the Lord.” For it is not the one who commends himself who is approved, but the one whom the Lord commends. — 2 Corinthians 10:17-18 (NIV)

PostHeaderIcon Install NRPE on Linux

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.


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PostHeaderIcon USB-to-Serial adapter for Mac

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.
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PostHeaderIcon Install .NetFramwork 3.5 on Windows 10 using DISM

  1. Insert or mount your Windows 10 disc.
  2. Open a Command Prompt as Administrator.
  3. 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.


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PostHeaderIcon Outlook Generates NDR for returning staff

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.

Problem:
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.
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PostHeaderIcon New Password Generator

It seems like we have been having to create random passwords at work a lot lately.  So I decided to find a script that I could use on here (Password Generator).  In order to make it fit this WP Theme, I dropped the CSS and just created a table for the different options.  The javascript is still intact though.  I did change some of the values a bit.
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PostHeaderIcon Exchange 2013 – Rapid Log Growth

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.
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PostHeaderIcon Outlook 2013 – Stuck on Loading profile

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.

  1. Run regedit (Start > Run > type regedit and press ENTER)
  2. (more…)


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PostHeaderIcon Create a test file of a certain size

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
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PostHeaderIcon Cisco Switches – Change default syslog port

So at work we have been setting up Nagios XI, Nagios Network Analyzer, and Nagios Log Server.  One of the tasks was to get all of the switches to send their syslog messages to the Nagios Log Server.  However, it was set to allow syslog messages to come in on TCP/UDP port 5544 instead of the default UDP514.  So I started looking at how I could change the default syslog port on the switches.
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PostHeaderIcon Ubuntu Chrome Kiosk Setup

So at work we have a couple of computer setup in a public area that can be used to access our web site.  In the past we have used Windows XP and locked them down.  However, with support for XP coming to an end we needed to come up with another solution.  I wanted to branch out a bit (at least for me) and come up with a kiosk setup that used a Linux distro .  I came across  some really good options, but one of the requirements was that the browser should be Google Chrome.  Most of the sites I came across used FireFox as the browser.  I spent a few weeks searching and testing and finally came up with a working solution that uses Ubuntu 14.0.4LTS Desktop (x64), Openbox, and Google Chrome.  I used information from the web sites listed below to come up with this working kiosk.
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