dell poweredge: firmware update hell

a couple of weeks ago i began experiencing a seemingly unending nightmare. it all began like so…. i was attempting to update the BIOS to the latest release on a dell poweredge R710. the server was running vsphere 4.x. this is a pretty routine thing to do, that i’ve done several times before with no […]

Posted in: IT by resinblade No Comments

defender’s quest (pc)

i recently finished playing defender’s quest, a very affordable tower defense/rpg indie game. it cost me slightly more than 5 bucks with its initial release. i played it from linux because like most indie games nowadays, DQ (defender’s quest) is cross platform. i’m not much of an expert when it comes to the tower defense […]

Posted in: Games by resinblade Comments Off on defender’s quest (pc)

intro to hexadecimal

something i wrote up in the early 2000’s. includes some binary and octal info as well… hexadecimal hexadecimal is most commonly used to represent large amounts of binary (machine code 01010011..etc) in a small amount of characters. it’s also used for numbering memory and physical addresses (C800:5). hex, which it is more often called, is […]

Posted in: IT by resinblade No Comments

useful math links

great for verifying answers: limit calculator – http://www.numberempire.com/limitcalculator.php matrix calculator – http://www.bluebit.gr/matrix-calculator/ cramer’s rule calculator – http://sks99.com/ch9/deter/calcdeter.htm another cramer’s rule calc – http://www.analyzemath.com/Calculators/Calculator_syst_eq.html yet another cramer’s rule calc – http://ncalculators.com/matrix/cramers-rule-calculator.htm partial fractions – http://calc101.com/webMathematica/partial-fractions.jsp arithmetic sequence calculator – http://www.basic-mathematics.com/arithmetic-sequence-calculator.html binomial theorem calculator – http://www.kusashi.com/binomial.php tangent lines – http://cs.jsu.edu/~leathrum/Mathlets/tangents.html taylor series expansion calc – http://www.solvemymath.com/online_math_calculator/calculus/taylor_series/index.php

Posted in: Thoughts by resinblade No Comments

cisco ucm: extension mobility

a checklist of sorts: extension mobility service must be enabled on ucm server create a phone service for extension mobility under device settings->phone services create a device profile under device settings->device profile on the device profile, subscribe the profile to the extension mobility service on the end user, add the extension mobility profile under controlled […]

Posted in: IT by resinblade No Comments

installing hyper-v server role in 2008 r2 core

run the command: dism /online /enable-feature /featurename:Microsoft-Hyper-V to manage a hyper-v server with an mmc snap-in, the latest RSAT tools will need to be installed on a management workstation. as of right now the newest version is RSAT for windows 7 sp1. from windows features->RSAT, install the hyper-v tools snap-ins. on the core server enable […]

Posted in: IT by resinblade No Comments

AD: event ID 4771 kerberos pre-authentication failed

when troubleshooting AD account lockout issues you can search thru DC security logs for audit failures and event ID 4771. the event details will include a result code which will specify exactly what the issue is. the most common i’ve seen: 0x12 – client credentials have been revoked (disabled, expired, locked, etc) 0x17 – password […]

Posted in: IT by resinblade Comments Off on AD: event ID 4771 kerberos pre-authentication failed

raiser’s edge 7 crash – faulting module name: mshtml.dll

solution ID: BB716412 this RE7.exe crash can be resolved by installing the latest 7.91 patch or by uninstalling internet explorer 9.

Posted in: IT by resinblade No Comments

install uccx agent in windows 7

by default, the UCCX 5.x agent does not want to install on anything above windows XP. if you’re stuck on an older release of UCCX and need to install agents on windows 7 there is a way to force the install. right-click the MSI file and choose troubleshoot compatibility. the wizard will run and should […]

Posted in: IT by resinblade No Comments

cisco unity to unity connection migration

here’s how we pulled off a successful migration (at least in my opinion): kept vm pilot to old unity system active so old messages could be accessed created a new vm pilot for unity connection disabled MWI extensions on old unity system manual MWI resync on unity connection changed default vm pilot in call manager […]

Posted in: IT by resinblade No Comments