What I am reading

  • https://www.thecut.com/article/covid-deaths-injustice.html
  • https://compmath.wordpress.com/about/10-the-big-picture-darpas-23-challenge-questions/
  • https://www.nextgov.com/emerging-tech/2020/11/army-funded-algorithm-decodes-brain-signals/170083/
  • https://www.bbc.com/future/article/20160915-the-woman-who-is-allergic-to-water

Setting up ELK

elasticsearch (elastic licence, with builtin JAVA)

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.9.0-amd64.deb
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
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
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 JAVA_HOME

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-oss-7.9.0-no-jdk-amd64.deb
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
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
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

Will human transplants change biometrics?

https://sg.style.yahoo.com/transplant-patients-dna-is-replaced-with-that-of-his-donor-124035642.html

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.

HTTPS and Geolocation with web browsers

I’ve starting coding apps to get a javascript geolocation refresher. Switching between OSX and W10 was quite a pain because:

  1. Safari does not support geolocation over HTTP (no idea why http://localhost/ is considered an issue with Safari).
  2. 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.