Active-Directory

SQL Server / Windows OS losing connection to Domain Controllers
May 24, 2017 · Brandon Abshire · 3 min read ·
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SSPI handshake failed with error code 0x80090311, state 14 while establishing a connection with integrated security; the connection has been closed. Reason: AcceptSecurityContext failed. The Windows error code indicates the cause of failure. No authority could be contacted for authentication.
Login failed. The login …

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Active Directory and PHP on Apache on Bash on Ubuntu on Windows
Apr 12, 2016 · 4 min read ·
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Recently, I wrote about Joining Ubuntu to an Active Directory Domain. That was for an actual Ubuntu box and the plan was that the next post would be about adding Apache to the mix. But then I got distracted by Apache on Bash on Ubuntu on Windows (check out my gists for sneak peaks).
I should be practicing for my …

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Joining Ubuntu to an Active Directory Domain
Apr 11, 2016 · 5 min read ·
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Back in 2009, I did a whole lot of messing around with Linux and Active Directory integration, primarily for Apache. Now that Linux is coming to Windows, I figured I'd brush up on my Linux and Windows Integrated Authentication skills to work with Ubuntu, too.
Clients and Servers
Since 2009, it seems that a couple …

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SQL Server Client Tools, Linux and Integrated Authentication in a Few Easy Steps
Mar 14, 2016 · 4 min read ·
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Back in 2013, I wrote about "Using Windows Authentication to Connect to SQL Server from Linux". Considering how convoluted using Linux can get, doing so was surprisingly straightforward then and it's even easier now.
Want to see a webcast about this topic? Aaron Nelson and I recorded a session for the SQL …

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Failed Domain Relationships on SQL Server Cluster Nodes
Jan 20, 2016 · 2 min read ·
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You know what's scary as hell? When one node of an important cluster loses its trust relationship with the domain and you see the error "the trust relationship between this workstation and the primary domain failed". That happened to me late last year with one of my SQL Server 2008 R2 nodes. The scary part …
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SQL Server: Cannot Generate SSPI Context and KRB_AP_ERR_MODIFIED Errors
Dec 7, 2013 · Brandon Abshire · 4 min read ·
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As DBAs, one of the most common tasks performed is the installation of new SQL Servers. While I've installed hundreds of SQL Server instances over the years, I only recently come across the error described below. In the past, I've seen the SSPI context error, but it is usually tied to an issue with a domain …
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Using Windows Authentication to Connect to SQL Server from Linux
Oct 22, 2013 · 4 min read ·
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One of the things I love most about SuSE is how well it integrates with Active Directory. Joining a domain is easy when using yast. First I ensured that the Linux server's DNS server is pointed to my DC, then yast -> Network Services -> Windows Domain Membership. …
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SQL Server Discovery Tools and Scripts
May 24, 2012 · 2 min read ·
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Each time I start a new contract, the first thing I do is search for all SQL Servers across any network/subnet to which I have access. While the documentation I get is usually paltry or non-existent. When it does exist, it's usually only for the production SQL Servers. Sometimes, most production SQL Servers aren't even …
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Patterns and Practices: A Guide to Claims-Based Identity and Access Control - Free ebook.
Feb 24, 2012 · 1 min read ·
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While I usually like conversation-style technical books (think: Manning's In Action series and many Wrox books), Microsoft's Patterns and Practices series is one of my favorite even though they feel so formal. Recently, my buddy Buck Woody posted a link to the freely available Patterns and Practices book for A Guide to …
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PowerShell Workaround: "Replicate Directory Changes" Permissions in AD Required for SharePoint 2010 Profile Syncs
Sep 6, 2011 · 3 min read ·
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According to the SharePoint 2010 Communities FAQ, Microsoft is burdening SharePoint 2010 Administrators with new requirements to obtain Active Directory accounts with "Replicate Directory Changes" permissions because...
In order to interrogate AD about “what has changed since time xyz”, we need the …

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