If you have old plastics which had yellowed with time, have no fear! (and don’t throw away good plastic enclosures!).
All you have to do, is to place the plastic enclosure under bright sunlight for couple hours a day. Repeat until the yellow fades back to its original colour!
elasticsearch (elastic licence, with builtin JAVA)
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.9.0-amd64.deb.sha512 shasum -a 512 -c elasticsearch-7.9.0-amd64.deb.sha512 kibana (elastic licence)
wget https://artifacts.elastic.co/downloads/kibana/kibana-7.9.0-amd64.deb.sha512 shasum -a 512 -c kibana-7.9.0-amd64.deb logstash (elastic licence, require Java 8)
wget https://artifacts.elastic.co/downloads/logstash/logstash-7.9.0.deb.sha512 shasum -a 512 -c logstash-7.9.0.deb.sha512 elasticsearch (apache2 licence, no Java)
remember to set
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-oss-7.9.0-no-jdk-amd64.deb.sha512 shasum -a 512 -c elasticsearch-oss-7.9.0-no-jdk-amd64.deb.sha512 kibana (apache2 licence, no Java)
wget https://artifacts.elastic.co/downloads/kibana/kibana-oss-7.9.0-amd64.deb.sha512 shasum -a 512 -c kibana-oss-7.9.0-amd64.deb.sha512 logstash (apache2 licence, no Java)
wget https://artifacts.elastic.co/downloads/logstash/logstash-oss-7.9.0.deb.sha512 shasum -a 514 -c logstash-oss-7.9.0.deb.sha512 installing elasticsearch
dpkg -i elasticsearch-7.9.0-amd64.deb
sudo systemctl status elasticsearch.service sudo systemctl start elasticsearch.service installing kibana
dpkg -i kibana-7.9.0-amd64.deb
sudo systemctl status kibana.service sudo systemctl start kibana.service installing logstash
dpkg -i logstash-7.9.0.deb
echo ‘LS_OPTS=”-w 2″‘ >> /etc/defaults/logstash sudo systemctl status logstash.service sudo systemctl start logstash.service
9 December 2019
A transplant patient developed the DNA of his donor, it has emerged.
Chris Long, from Reno in Nevada, had a blood test three months after receiving a bone marrow transplant.
Results revealed his DNA had been “replaced” by that of his donor, a German man 10 years his junior.
Four years later, the donor’s genetic material was found in Mr Long’s cheeks, lips and semen. While levels fluctuated over time, only his chest and head hair were unaffected.
Safari does not support geolocation over HTTP (no idea why http://localhost/ is considered an issue with Safari). W10 Edge supports geolocation over HTTP.
After some experimenting, I discovered Chrome and Brave both support geolocation over HTTP on OSX. Chrome definitely was doing WiFi triangulation because it could return my exact lat/lng whereas Brave was returning the midtown lat/lng coordinates.
I came across this problem when updating jdk via brew. Somehow brew removed openjdk-12 and replaced it with 14. Pesky.
After some checks, I figured the Eclipse 2020-06 executable was relying on a hardcoded openjdk path.
To rectify this, I’ve done the following:
Determine the jvm available on osx by dropping to command line and running ‘/usr/libexec/jvm_home -V’
Below is a screen capture of the available openjdks on my OSX. (openjdk-12 was removed somehow). Remember the location of the openjdk directory you wish to use.
2. Edit the openjdk path in eclipse.ini. The path to eclipse.ini is as follows:
Note: I have mine in $HOME/eclipse/java-2020-06. Yours could be in the Applications directory (ie /Applications/Eclipse)
Run ‘nano eclipse’
3. To get this:
eclipse.ini pointing to missing openjdk-12 folder
4. Amend the folder name to the openjdk directory that you’ve determined in Step 1.
I’ve selected openjdk-14.0.2.jdk
5. Ready to start Eclipse by running the eclipse executable.
I managed to get a oldish 3Tb Time Capsule off Carousell for experimenting. It was pretty alright for the first day until I got tired of the hourly loudish HDD spin up.
There must be a way to adjust the hourly backup frequency to every 6 hours. Given this is a oldish EOLed device, I also want to preserve its longevity – as much as i can.
To do so, determine the new backup frequency you want it to be, knowing the backup daemon reads in the backup frequency in seconds.
If you want to adjust to a 12 hour backup, the new number would be 60 seconds * 60 minutes * 12 hours = 43,200
For a 6 hour backup frequency, the new number would be 60 seconds * 60 minutes * 6 hours = 21,600
Go to the macOS terminal app and do the following: Unload the backup daemon using “ sudo launchctl “ unload /System/Library/LaunchDaemons/com.apple.backupd-help.plist Change frequency on the the following file /System/Library/LaunchDaemons/com.apple.backupd-helper.plist using “ sudo nano /System/Library/LaunchDaemons/com.apple.backupd-helper.plist“ Look for the line that says “ <key>Interval</key><integer>3600</integer>“, change the integer value to the newly calculated value above without the comma. It should read the following with a 12 hour backup frequency “ <key>Interval</key><integer>43200</integer>“ Save the file with Ctrl-X. Then reload the plist using “ sudo launchctl “ load /System/Library/LaunchDaemons/com.apple.backupd-help.plist
You will only hear the HDD storage startup only twice a day, and extend the HDD’s life!
PS – The above was verified to work on Mojave.
PPS – You will need to do this for every macOS device.
Got the news today about the next iteration of RPi4 memory bump from 4GB to 8GB. Still hot enough to fry an egg.
The new computer now cost USD75 (S$107 at
I got stuck resetting a router’s administrative password. While I had the required Cisco cable (console to serial) and a Usb to Serial adapter, Windows 10 wasn’t too happy with the Usb to Serial adapter I had.
Windows 10 said the Usb to Serial adapter was too old and wanted me to “CONTACT THE DEVELOPER”. No kidding, that’s what was written on the Devices page.
Switching to the MBP, I connected the Usb end of the Usb – Serial cable and did a
And I got a response from the router immediately.