Voyager 1 on 2027-12-26T23:59:36,9+0000
I downloaded a new version of NASA’s Eyes from https://eyes.nasa.gov/. The old version was unable to upgrade itself for some reason. I ran a simulation on Voyager 1 towards the end of its life. At 2027-12-26T23:59:36,9+0000, the spacecraft changed its attitude, pointing the high gain antenna towards outer space. I checked the Wikipedia article, but […]
Read More → Voyager 1 on 2027-12-26T23:59:36,9+0000Office 365 and error 30125-28 (404)
The Office 365 instance installed on a student’s laptop showed signs of not being activated and in need of an update. Clicking on any of the small buttons below the ribbon made no difference. Running Office updates manually from “File → Account → Update” gave us an error message: 30125-28 (404). Running sfc /scannow with […]
Read More → Office 365 and error 30125-28 (404)pf(4) as a NAT44 router
pf(4) is a bit optimistic with regard to how many states it can track using the defaults. Raising the hard limits to four times the default seems better:
Read More → pf(4) as a NAT44 routerCisco Catalyst 9400 Series
Cisco’s Catalyst 9400 Series introduced this summer do look promising, but it’s still missing a few highlights: Complete support for redundant supervisors; unavailable according to the release notes dated July 31, 2017 The supervisor module (hardware) supports redundancy, but the software does not. The associated route processor redundancy (RPR) and stateful switchover (SSO) features are […]
Read More → Cisco Catalyst 9400 SeriesUpgrading PHP from 7.0.22 to 7.1.9
I created a shell script which began its simple life as After running the script for a second time and a third time, etc, the script was successively changed to: Restart Apache using service apache24 restart. In the end, PHP 7.0.22 got upgraded to PHP 7.1.9. All is well.
Read More → Upgrading PHP from 7.0.22 to 7.1.9Revit 2018.1 and Licensing System Error 1
A student experienced Revit 2018.1 giving him this rather useless error message: Licensing System Error 1 After Googling for a solution, we installed/repaired all the Visual C++ runtimes we could find in 3rdParty\x64\VCRedist and in 3rdParty\x86\VCRedist from the Revit 2018 distribution. Success! Shame on lazy developers not willing to code reasonable error messages explaning what […]
Read More → Revit 2018.1 and Licensing System Error 1Revit 2018.1 and GeForce GTX 1050 Ti
Yesterday, a student installed Autodesk Revit 2018 on his Windows 10 x64 laptop. He then upgraded to Revit 2018.1. After entering the licensing details, Revit crashed. Installing the latest drivers from nVidia, currently at version 385.41, and rebooting the laptop saved us from any more grief.
Read More → Revit 2018.1 and GeForce GTX 1050 TiPässler PRTG 17.3.32.2478
I’ve been exploring Pässler PRTG on Microsoft Windows Server 2016 (Microsoft Imagine Premium) for the past couple of days. While the system is impressive and on the border of being overwhelming, it lacks complete IPv6 support. The web interface is IPv4 only, and the NetFlow v9 collector only understands IPv4. PRTG can do PING, SNMP, […]
Read More → Pässler PRTG 17.3.32.2478Patch for math/py-matplotlib
Without this patch, python2.7 will crash when the loop in setup.py reaches setupext.BackendGtk3Cairo().
Read More → Patch formath/py-matplotlib
ocserv and user-profile=profile.xml
Running OpenConnect’s ocserv with user-profile=profile.xml creates some headache as all files are removed from /var/run at reboot. Enabling ocserv_prep in /etc/rc.conf and adding this shell script solves that problem.
Read More → ocserv anduser-profile=profile.xml