emprit1988

OS: Ubuntu 14.04
Error: You don't have permission to access /phppgadmin on this server.
Comment: After fresh installation of phppgadmin, apache2 may not allow you to access phppgadmin. To fix this follow the below
steps.

1.  copy /etc/apache2/conf.d/phppgadmin to apache2/conf enabled
copy /etc/apache2/conf.d/phppgadmin /etc/apache2/conf-enabled/phppgadmin.conf

2. edit phpadmin.conf and uncomment allow from all
#allow from all => allow from all 

emprit1988

Basics of RESTful API design

Your API should be designed around the idea of resources.

Resources represent things (nouns) and not behaviors (verbs).

Each resource should have a canonical/unique url (api/users/bill, api/users/mary).

Return all resource properties in the return payload.

emprit1988

cron.schedule('* * * * * *', function(){
  //runs every second
});

cron.schedule('* * * * *', function(){
  //runs every minute
});

cron.schedule('2 * * * * *', function(){
  //still runs every minute

emprit1988

##Install Prerequisites
sudo apt-get install g++ # or clang++ (presumably)
sudo apt-get install autoconf automake libtool
sudo apt-get install autoconf-archive
sudo apt-get install pkg-config
sudo apt-get install libpng12-dev
sudo apt-get install libjpeg8-dev
sudo apt-get install libtiff5-dev
sudo apt-get install zlib1g-dev

emprit1988

Step 1: Create chained certificate with the provided crt files. Ordering is important.

~$ cat Server.crt Intermediate.crt Root.crt > Chained_certificate.crt

Step 2: Format the concatenation
The crt file should Follow the syntax
-----Start Certificate-----
############################
############################
-----End Certificate-----

emprit1988

Running docker as non-root user
Note: Should run every command in the user account.

Step 1: Create the docker group.
$ sudo groupadd docker

Step 2: Add your user to the docker group.
$ sudo usermod -aG docker $USER

Step 3: Change ownership to the current user

emprit1988

Step 1: Download JDK from Oracle
https://www.oracle.com/technetwork/java/javase/downloads/index.html

Step 2: Install the package
sudo dpkg -i jdk-11.0.1_linux-x64_bin.deb

Step 3: Config Java (use jdk-xx.x.x based on your downloaded version)
sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk-11.0.1/bin/java 2
sudo update-alternatives --config java

emprit1988

Step1: Take dump of all your databases
pg_dumpall > outputfile

Step2: Uninstall Postgres
dpkg -l | grep postgres

Step3: Get list of all postgres related packages from Step 2 and form purge command
sudo apt-get --purge remove postgresql postgresql-8.3  postgresql-client  postgresql-client-8.3 postgresql-client-common postgresql-common  postgresql-contrib postgresql-contrib-8.3

Step4: Remove all data directories

emprit1988

What problem does it solve and How was it addressed earlier?
How fast is it?
What runtimes can we use (X) in?
What are we doing for resiliency? For example, what are we doing to make sure the (X) service stays up? 
How do we handle restarts?
How are we measuring the latency of the service?
What are the costs involved in building (X)?
What reports and dashboards will be available to us to help us understand what problems we could face?
How much in percentage of our business can use (X)?
What are its limitations?

emprit1988

sudo apt-get update
sudo apt-get install default-jre
sudo apt-get install default-jdk

get path from:
sudo update-alternatives --config java


sudo gedit /etc/environment
JAVA_HOME="/usr/lib/jvm/java-8-oracle"