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Wednesday, 10. May 2017
Amazon Web Services

Here are some of the important Amazon products to use.

cloudTrail + ES + cloudWatch
SNS
cloudformation
Route53
EC2 + spot + AMI
Redshift + ElasticCache + Spectrum
S3 + Glacier Deep Archive / Athena
RDS + documentDB
DMS
Lambda + API Gateway + dynamoDB + SMS gateway
Cost Explorer
SFTP server
_____

List of important google products those I use frequently.

1) Popular services:
All popular google products are available as API.

search
gmail
calendar (and tasks)
youtube
blogger
docs (including sheets)
drive (including photos)
books

2) Maps services:
This category has several API's to cater to the vast array of requirements related to geo.

maps
directions
distance matrix
elevation
geocoding
geofencing
geolocation
location & context
maps booking
places
roads
streetView
fused location provider
earch engine
transport tracker solutions

3) Domain specific API:
transit API
classroom API
civic Information API

4) Machine Learning:
automl Vision
vision API
tensorflow
colab

5) Mobile:
play store
android
flutter

6) web:
chrome
apigee
kubernetes
go

7) Utilities:
google sign-in
public DNS
public NTP
recaptcha
google fit
google fonts

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Saturday, 14. January 2017
Self signed security certificate

http://www.thegeekstuff.com/2009/07/linux-apache-mod-ssl-generate-key-csr-crt-file/

openssl genrsa -out 34.195.94.88.key 1024

openssl req -new -key 34.195.94.88.key -out 34.195.94.88.csr

echo subjectAltName = IP:34.197.71.213 > extfile.cnf

openssl x509 -extfile extfile.cnf -req -days 365 -in 34.197.71.213.csr -signkey 34.197.71.213.key -out 34.197.71.213.crt

/srv/docker/gitlab/gitlab/certs

-rw-r--r-- 1 root root 749 Jan 14 11:05 34.195.94.88.crt
-rw-r--r-- 1 root root 599 Jan 14 11:05 34.195.94.88.csr
-rw-r--r-- 1 root root 887 Jan 14 11:04 34.195.94.88.key

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Wednesday, 23. November 2016
docker and aws

Before starting docker daemon, add the aws credentials.

vi /etc/init/docker.override

env AWS_ACCESS_KEY_ID=
env AWS_SECRET_ACCESS_KEY=

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Sunday, 30. October 2016
Turn off Windows Updates in Windows 10

There is no option to turn off Windows Updates in Windows 10 (it used to be with earlier versions of Windows). Here is a work-around...
Control Panel > Administrative Tools, you can access Services. In the Services window, scroll down to Windows Update and turn off the process by right-clicking on the process, click on Properties and select Disabled.

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Saturday, 9. July 2016
RSS extension for chrome

RSS Subscription Extension (by Google) is a must have chrome extension if you read RSS feeds.
When you click on RSS feed icon, you will get only "Bloglines" and "My Yahoo" sites. But you can add more sites if you click on "Mange" option. For e.g. add feedspot with the following URL...

http://www.feedspot.com/search?type=site&q=%s

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Monday, 23. May 2016
use putty for presentation

Config - Change settings... - Window - Colours - Use system colours
Config - Change settings... - Window - Appearance - Change... - 12 point

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Saturday, 21. May 2016
start with docker

# create a docker file

vi dockerfile

COPY php.ini /usr/local/etc/php/

FROM php:5.6-apache
COPY adminer.php /var/www/html/
RUN chmod -R 777 /var/www/html/

# build an image
docker build -t my-php-app .

# run an image
docker run -d -p 80:80 --name myapp my-php-app

docker run -it --rm --name my-running-app my-php-app

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docker command examples

# options for running docker

docker run -d --name abcd2 -p 23:23 -v /var/lib/mysql tutum/ubuntu:trusty

docker run -d --volumes-from abcd2 -p 3306:3306 tutum/mysql:5.5

docker run -d --name abcd5 -p 24:24 -v /var/lib/mysql ubuntu:trusty

docker run -d --volumes-from abcd5 -p 3306:3306 mysql:5.5

docker run -d -v /path/in/host:/var/lib/mysql tutum/mysql /bin/bash -c "/usr/bin/mysql_install_db"

docker run -d -p 3306:3306 -v /path/in/host:/var/lib/mysql tutum/mysql

docker run -d -p 3301:3306 --cpu-shares=512 --blkio-weight=250 --memory=512M --cpuset-cpus=0 -v ~/mdbdata/mdb55:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=admin --name mdb55 mariadb:5.5

# start docker with host address

/etc/init.d/docker start -H tcp://0.0.0.0:2375

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Start 2 containers at once

Here is how you can start neo4j as well as scipy notebook.

vi docker-compose.yml

neo4j:
image: kbastani/docker-neo4j:latest
ports:
- "7474:7474"
- "1337:1337"
volumes:
- /opt/data

jupyterscipy:
image: jupyter/scipy-notebook
ports:
- "8888:8888"
links:
- neo4j:neo4j
volumes:
- .:/home/jovyan/work

docker-compose up -d

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Tuesday, 9. February 2016
linguistics using Python

These are the 4 libraries apart from standard library nltk are useful to analyze natural languages using python.

1) from corenlp import StanfordCoreNLP

https://github.com/stanfordnlp/CoreNLP

2) from gensim.models import word2vec

https://github.com/piskvorky/gensim/

3) import divisi2

https://github.com/commonsense/divisi2

4) from sklearn.naive_bayes import MultinomialNB

https://github.com/scikit-learn/scikit-learn

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