Category: English
Stuff written in English
Email is not so confidential after all
As implied by email protocols, the information in this message is not confidential. Any middle-man or recipient may inspect, modify, copy, forward, reply to, delete, or filter email for any purpose unless said parties are otherwise obligated. As the sender, I acknowledge that I have a lower expectation of the control and privacy of this […]
Read More → Email is not so confidential after allThe Erlang Master Classes
I had great fun watching the YouTube videos for “The Erlang Master Classes”, at The University of Kent, and typing Erlang code along the way. Go and see for yourself at http://www.kent.ac.uk/elearning/themes/masterclasses.html. Here are some thoughts from prof. Simon Thompson, http://profsjt.blogspot.co.uk/2015/06/the-erlang-mini-mooc-pilot-what-have-we.html.
Read More → The Erlang Master ClassesAn exercise on ZFS clones
This is an exercise I made, just to remind myself of how snapshots and clones work in ZFS. Also, how to properly get rid of them when you’re short of diskspace, or the dataset listing is too long, etc. First, we have the shell script that demonstrates the rise and fall of the initial dataset, […]
Read More → An exercise on ZFS clonesUnofficial errata: FreeBSD Mastery: ZFS
I bought the ebook edition of FreeBSD Mastery: ZFS this June. While the authors’ intentions are good, the 2015-05-21 edition has some errors and mistakes. The table below is nothing more than an unofficial errata of said book. Beware, what you find below might be due to my lack of understanding FreeBSD, ZFS, or the […]
Read More → Unofficial errata: FreeBSD Mastery: ZFSUpgrading XenServer 6.2
Download the required updates. Extract the XS*.xsupdate files. Transfer the XS*.xsupdate files to, say, /tmp/xsup on the master. Login on the XenServer console. Delete old log files in /var/log, e.g. /bin/rm /var/log/*.gz. Create if necessary, and change directory to /tmp/xsup. Run: Run: Delete the XS*.xsupdate files from /tmp/xsup. Shutdown the running VMs and restart each […]
Read More → Upgrading XenServer 6.2Loose camera connector in Dell Latitude E5540
A colleague came into my office claiming the camera in his Dell Latitude E5540 didn’t work. Here’s a link to the Dell Latitude E5540 Owner’s Manual. After a bit of troubleshooting, I removed the display bezel. Lo and behold, the camera connector was halfway out of its socket. Once I pressed the connector into place, […]
Read More → Loose camera connector in Dell Latitude E5540Microsoft’s support on the fringe lately?
Have you tried reading a Microsoft Knowledgebase article lately? It appears that every link like http://support.microsoft.com/kb/3023215 results in nothing.
Read More → Microsoft’s support on the fringe lately?Adding 24 hour clock to FreeBSD’s hardstatus string for GNU Screen
FreeBSD gives the user an option of installing the file /usr/local/etc/screenrc with some sensible defaults along with GNU Screen, aka sysutils/screen. Among the defaults are a format string for the hardstatus line. It shows the date using yy/dd/mm notation and the time as a 12 hour clock. That may be fine in the English speaking […]
Read More → Adding 24 hour clock to FreeBSD’s hardstatus string for GNU ScreenUpgrading PostgreSQL 9.2.10 to 9.4.1
I decided to upgrade my PostgreSQL server today. I did this upgrade slightly different than the last time. All commands were done as the root user unless indicated.
Read More → Upgrading PostgreSQL 9.2.10 to 9.4.1Strange spam
Apart from what I withheld by choice, the above is all that appears in this spam. Notice the strange Message-ID on line 8. Spam programming gone wrong? Maybe they should have used Erlang.
Read More → Strange spam