Category Archives: Troubleshooting
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Upgrading your Internal PKI Infrastructure from SHA1 to SHA2 – The Upgrade…
Posted on May 3, 2016 by Michael in Troubleshooting, TutorialsNow it’s time for the main event, the upgrade itself. Which as you’ll see is actually very simple. The key to this is ensuring your environment is ready, so please make sure the relevant information finding has been done and you know exactly what’s going to break or potentially break before continuing. (Which shouldn’t be […]
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Upgrading your Internal PKI Infrastructure from SHA1 to SHA2 – Current SHA1 Environment
Posted on April 26, 2016 by Michael in Troubleshooting, TutorialsAbove you can see the environment we will be using. I’ve replicated a fairly standard PKI enterprise environment. This includes: An Offline Root CA – (Cert Validity 50 Years) Two Online Intermediate CA’s: 1x Enterprise / AD Certificate Handling CA (MRPKI001AD) 1x SSL / Application Certificate Handing CA (MRPKI002SSL) I won’t cover installing or […]
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Upgrading your Internal PKI Infrastructure from SHA1 to SHA2 – Introduction
Posted on April 26, 2016 by Michael in Troubleshooting, TutorialsAfter a fairly lengthy break from writing these guides, I’m back with a fairly hot topic at the moment for a lot of organisations. The Migration from SHA1 PKI to SHA2 (Or SHA256 as you may have heard) All the SSL Certificates you can buy now a days (Symantec/go daddy etc.) no longer use SHA1. […]
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Active Directory 2003 to 2012 R2 Migration – Part 1 – Introduction
Posted on February 5, 2015 by Michael in Latest News, Troubleshooting, TutorialsWith the End of life day looming for Server 2003 (July 14th 2015) for those of you haven’t been living under a rock…. It’s all the rage to migrate away from your trusty 2003 AD environment to a more modern 2008 R2 or 2012 R2 environment. In fact, it’s all I’ve really been working on […]
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Editing UAG Invalid IP Address or Failed to add TMG Access Rule Troubleshooting
Posted on October 14, 2014 by Michael in Latest News, Troubleshooting, TutorialsHad another interesting issue with the UAG’s today. Once again they like to test my patience. This time they decided they would no longer activate, and after searching about I could see nothing on this topic so hopefully this helps others. You may get one of the following errors: “Failed to add TMG access […]
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Force SYSVOL / NETLOGON Replication on a problematic Domain Controller
Posted on August 29, 2014 by Michael in Latest News, Troubleshooting, TutorialsAs I’m sure most IT professionals / those working with AD realise problematic DC’s can be a royal pain the backside, especially once you’ve located the DC and need to get it back in to a working state. There are many tools you can use for finding out information on when it stopped replicating, […]
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Re-join Domain Without Restarting
Posted on August 28, 2014 by Michael in Latest News, Troubleshooting, TutorialsHow many times have you been in the situation where you find that the Windows Server or Workstation has its security relationship with the domain failed. The usual error you might receive is: “The trust relationship between the workstation and the primary domain failed”. Now in the past (not so much of a problem […]
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Introduction To DNS – The Basics
Posted on August 21, 2014 by Michael in IT Basics, Latest News, Troubleshooting, TutorialsWelcome to the second post in this series of basics/introductory blogs, brings us to something we use day in day out. Our friend DNS…. What is DNS? DNS (Domain Name Service) is the service used to translate friendly names (michaelriccioni.com) into computer friendly names (an IP address). How Does It Work? Think of DNS […]
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Introduction to Active Directory Trusts – The Basics
Posted on August 20, 2014 by Michael in IT Basics, Latest News, Troubleshooting, TutorialsAs part of a series of introductory blogs, I’m kicking off with the basics behind Active Directory Trusts. What is an Active Directory Trust? In order to share resources between two domains, there must be a trust or trusts connecting the two domains. It is important to note that trusts do not provide access […]
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AGPM Wireless GPO Creation Issues
Posted on April 17, 2014 by Michael in Latest News, Troubleshooting, TutorialsAnother interesting issue I ran in to a few weeks ago was issues when trying to create a new GPO via AGPM which included wireless settings. Upon trying to check the policy in I would find it would error and then the GPO would be removed. Not exactly what I need. Further investigation show due […]
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