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Profile picture of Geoff Duke

Geoff Duke

@gcd active 1 week ago
negotiating with app vendor regarding secure deployment and configuration; more firewall fiddling. View
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  • Disable SSLv2 on IIS

    Geoff @ UVM

    Microsoft KB 187498 describes the registry values that can be used to disable various security protocols. Disabling SSLv2 is as easy as

    This does require a reboot to put into affect.

    Posted 82 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Which Disk is that volume on?

    Geoff @ UVM

    I administer a server VM with a lot of disks, and many of them are the same size. When I need to make changes to the system’s storage, I’m always nervous that I’m going to poke the wrong disk. I could trust that […]

    Posted 110 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • GUID Chase - Group Policy troubleshooting

    Geoff @ UVM

    It started with an alert from System Center Operations Manager about a failed scheduled task. Of course, the alert references a task name that looks like a SID.  Running schtasks /query show a few jobs with a […]

    Posted 123 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • String arrays and mandatory parameters

    Geoff @ UVM

    I have been working on a function to convert the output of NET SHARE commands into usable PowerShell objects. In the course of my work, I was storing the output of the command in a variable, which I later pass […]

    Posted 165 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Excellent Git Tutorial

    Geoff @ UVM

    This video of a presentation by Scott Chacon has helped me start to get my head around Git.

    I’ve started experimenting with Git in my current PowerShell project, and I’m going to […]

    Posted 195 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Powershell, ACLs, and DFS-N

    Geoff @ UVM

    I’m working on some storage issues with our file services, and DFS Namespace services may the the best solution. But I will need to be able to keep the permissions on the DFS folders with targets in sync with the […]

    Posted 256 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • VSS diagnostics

    Geoff @ UVM

    For the past eight month, I’ve been working with EMC and Microsoft to diagnose a problem. Several time a month, during the backup of our primary Windows 2008 R2 file server, all the VSS shadow copies get deleted […]

    Posted 263 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Listing parent of AD object in PowerShell

    Geoff @ UVM

    Recently, I wanted to provide a client with a list of groups that related to some work he was doing. I wanted the group names as well as their location with AD. Although I often use the ds* commands or excellent ADfind tool for this type of task, I had been working in PowerShell on another [...]

    Posted 313 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Listing parent of AD object in PowerShell

    Geoff @ UVM

    Recently, I wanted to provide a client with a list of groups that related to some work he was doing. I wanted the group names as well as their location with AD. Although I often use the ds* commands or excellent <a href="http://www.joeware.net/freetools/tools/adfind/index.htm&quot; […]

    Posted 313 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • HoW PGP Whole Disk Encryption Works

    HoW PGP Whole Disk Encryption Works

    Geoff @ UVM

    In my discussion and demo at the IT-Discuss Live – Security event in May, I used a short slide deck to describe—in broad terms—how PGP Whole Disk Encryption works. This laid the foundation for working through some […]

    Posted 323 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Custom event log queries

    Custom event log queries

    Geoff @ UVM

    I really like the newer event log model on Windows 2008 family, and the flexibility of the XML events and the queries that makes possible.
    Recently, I started noticing a quiet failure of a scheduled task. The […]

    Posted 341 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Use it up - Brother HL-3070CW Toner

    Geoff @ UVM

    Use it up, Wear it out, Make it do, or Do without.

    There are some things that we can’t really do without. But good old Yankee thrift pains me every time I have to replace printer consumables. I have a <a…[Read more]

    Posted 388 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Script: Shadow Copy Report

    Geoff @ UVM

    We use EMC NetWorker for our enterprise backup solution. Since we migrated our primary file server from a NetApp filer to a native Windows server, we’ve been having a recurring problem with all the Shadow Copies […]

    Posted 424 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Webmail on a Netbook

    Webmail on a Netbook

    Geoff @ UVM

    Amid the praise for and complaints about the newer version of webmail, we received a plea from a netbook user. She pointed out that the new layout made it very difficult to navigate among her mail folders. I use a […]

    Posted 468 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Custom FSRM notification script

    Geoff @ UVM

    I’ve been working on a script to generate an informative message to users when they exceed quota thresholds on our file server. The features of the File Server Resource Manager (FSRM) provides a variety of useful […]

    Posted 487 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Semisynchronous WMI

    Geoff @ UVM

    Experimenting with querying WMI from Perl with Win32::OLE, I ran across the following WMI query options in an Perl example from Microsoft’s Script Center: After some digging, I found the following explanation of […]

    Posted 615 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • I should have known better

    I should have known better

    Geoff @ UVM

    I spent a some time configuring the Eventlog-to-Syslog service on my domain controllers, yesterday. A bunch of that time was spent trying to figure out why the service wasn’t able to read the config file I had […]

    Posted 621 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Comment on WordPress 3.1

    UVM Blogs
    “

    JavaScript is stripped out of submitted content as a security measure.— Geoff Duke

    Posted 644 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Prototyping Windows File Services

    Geoff @ UVM

    After seven years of providing robust file service hosted on a NetApp filer, we’ve decided to migrate our services to native Windows File Services. We have encountered several issues with the interaction of newer […]

    Posted 673 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Stonewall Experience

    Geoff @ UVM

    I will be watching this; 9 pm on Monday, April 25th on most PBS stations. Watch the full episode. See more American Experience.

    Posted 764 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    negotiating with app vendor regarding secure deployment and configuration; more firewall fiddling.

    Posted 777 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Contemplating firewall rules, secure working habits, adding 64-bit printer drivers

    Posted 777 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • How to catch a phish

    How to catch a phish

    Geoff @ UVM

    I’ve received several phishing attempts, recently, this time masquerading as mail from Twitter. I thought I’d share how I recognized this as an attack. Many list members already know this stuff, but I thought I’d […]

    Posted 790 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • What’s my IP Address?

    What’s my IP Address?

    Geoff @ UVM

    It’s one of the first questions that we ask clients when we’re helping diagnose a problem with a network resource. There are several different ways to determine your IP address. There’s even a website, <a href="http://www.whatsmyip.org/&quot; […]

    Posted 853 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Edit a meeting you can’t see

    Edit a meeting you can’t see

    Geoff @ UVM

    The situation: I’m working in Oracle Calendar as a person’s designate, managing his calendar on his behalf. We’ll call him Sam. I create a meeting for Sam with some other attendees. Later, I remove Sam from the […]

    Posted 858 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Microsoft Office Troubleshooting

    Microsoft Office Troubleshooting

    Geoff @ UVM

    Recently, I was asked to talk with our Help Line staff about strategies for troubleshooting problems with Microsoft Office. I spent some time addressing the activation issues relating specifically Office 2010, […]

    Posted 893 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Troubleshooting Office 2010 & 2013 Activation

    Geoff @ UVM

    Microsoft Office 2010 and 2013 volume license editions use the Volume License 2.0 mechanism to manage activation. Office 2010 and 2013 will activate against our campus Key Management Service (KMS), without user […]

    Posted 896 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Powershell Join-String function

    Geoff @ UVM

    Update: better yet, read about the -Join and -Split PowerShell operators. Live and learn. —Geoff

    Something I’ve found myself missing in PowerShell is a function to combing the elements of a list with a given […]

    Posted 916 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Event data mining with PowerShell

    Geoff @ UVM

    On Server 2008 and 2008 R2, if your Domain Controllers aren’t configured to require LDAP signing and disallow simple LDAP binds in plaintext, Active Directory Domain Services logs a warning event on startup, and <a […]

    Posted 930 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Compiling OpenSSL for Win x64

    Geoff @ UVM

    I’m upgrading the components of the user provisioning system I built. Previously, I used ActiveState Perl and the UWinnipeg PPM repository to get the Net::LDAPS stack working. This time, though, I decided I […]

    Posted 974 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Network Policy Service error – eventid 4402

    Network Policy Service error – eventid 4402

    Geoff @ UVM

    I’ve been working on deploying a load-balanced Remote Desktop Gateway service. I deployed the first farm member, then cloned it to create a second member. The second member was throwing Error events, which has the […]

    Posted 977 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • My favorite Mac video

    Geoff @ UVM

    [contains some adult language : f-word]

    Posted 979 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Tech issues scuttled a conference call with Microsoft. Finished work on a VMware template for Server 2008 R2 Standard and deployed a system from it. Experimented with authenticating Zoo/web content against Active Directory and group membership.

    Posted 1009 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    So far, the week has been full of client-based service calls. Issues with merging Windows profiles, generating email announcements, network-errors that turn out to be a corrupted Offline Files database… and they keep coming.

    Posted 1021 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Reinstalling Server 2008 R2 (Ent rather than Std), fixing network ports, advice on remote assistance, quota collision, etc.

    Posted 1028 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Today, spent time on DC decommisioning (dban ftw), IBM blade firmware updates, and remote server 2008 R2 installations. Hopefully, I’ll get some network connectivity going tomorrow.

    Posted 1029 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Comment on Embedding Videos in Posts

    UVM Blogs
    “

    Hey, Adrian. You can control the size of embedding media via options in your blog dashboard. Look under Settings > Media for the “Maximum embed size.” (found via http://codex.wordpress.org/Embeds ).

    I hope that helps. Let us know if it doesn’t.— Geoff Duke

    Posted 1042 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Having fun playing with the Data ONTAP PowerShell toolkit. http://bit.ly/csj2ow

    Posted 1048 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Server 2008 R2 DNS client issues

    Geoff @ UVM

    We use BIND for our DNS, and allow certain systems to perform dynamic DNS registration. This arrangement has worked well for years. When I started deploying Server 2008 R2, I noticed that they weren’t registering […]

    Posted 1068 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Server 2008 R2 DNS client issues

    Geoff @ UVM

    We use BIND for our DNS, and allow certain systems to perform dynamic DNS registration. This arrangement has worked well for years. When I started deploying Server 2008 R2, I noticed that they weren’t registering PTR records. At the same time, I noticed a bunch of errors that seemed to indicate that Dynamic DNS wasn’t working at [...]

    Posted 1068 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • PowerShell – find a free IP

    Geoff @ UVM

    Since we don’t use DHCP in our server subnets, I frequently have to locate free IP addresses when deploying a server. I remembered reading a TechNet Magazine article by Don Jones that used the PowerShell PROCESS […]

    Posted 1090 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • 2008 R2 DCDIAG errors with NIC teaming

    Geoff @ UVM

    I’m in the process of deploying a couple new Server 2008 R2 domain controllers. I’m using two IBM blades, each having a pair of Broadcom NICs that I configured in fault-tolerance teams. In trying to verify the […]

    Posted 1091 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Capture Windows VM memory dump in ESX

    Capture Windows VM memory dump in ESX

    Geoff @ UVM

    I’m working with Microsoft to identify a problem I’m seeing with LSASS, possibly related to the VSS snapshot created by our backup software. At this point, I need to be able to capture the memory state on the […]

    Posted 1097 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Day mostly consumed by issue relating to netid changes. Now, off to D&D 4E at FUUSB.

    Posted 1117 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Cranked on my manual provisioning script, added a batch processing mode, and -w whatif argument, and have now provisioned the 74 XXT users Frank sent me yesterday.

    Posted 1119 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Troubleshooting WMI on a print server, using the WMIDaig utility (http://www.microsoft.com/downloads/details.aspx?familyid=d7ba3cd6-18d1-4d05-b11e-4c64192ae97d&displaylang=en).

    Posted 1120 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    Deploying new VM.

    Posted 1125 days ago.
    Profile picture of Geoff Duke Geoff Duke
  • Geoff Duke posted an update:

    I’m at the Windows in Higher Ed conference in Redmond, WA. Lots of good stuff. Had dinner with Laura Hunter and colleagues from UW, Stanford, and UT Austin.

    Posted 1134 days ago.
    Profile picture of Geoff Duke Geoff Duke
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