Shadab Shamsi's Blog

  On Both Master and Slave Nodes Install docker following  Official Docker Installation Guide Switch to root user sudo su - Change docker cgroup driver cat > /etc/docker/daemon.json <<EOF { "exec-opts": ["native.cgroupdriver=systemd"], "log-driver": "json-file", "log-opts": { "max-size": "100m" }, "storage-driver": "overlay2" } EOF systemctl daemon-reload systemctl restart docker Update the  apt  package index and install packages needed to use the Kubernetes  apt  repository: sudo apt-get update sudo apt-get install -y apt-transport-https ca-certificates curl Download the Google Cloud public signing key: sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg Add the Kubernetes  apt  repository: echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernete

We can set the timezone on an Amazon EC2 instance to CST by using following steps: Login to your EC2 instance. Execute the command: “sudo su” to become a root user. Execute the command: “timedatectl” to know the current timezone details. Execute the command: “rm /etc/localtime” ( Press Enter). For confirmation type “Y” and Press Enter. Execute the command: “cd /usr/share/zoneinfo” (Press Enter). Execute the command: “ln -s /usr/share/zoneinfo/Asia/Kolkata /etc/localtime” (Press Enter). Now check the timezone by using “timedatectl” command. That’s it. Timezone changed to CST successfully.(No need to reboot) Reference: https://www.quora.com/How-do-I-set-the-time-zone-on-an-Amazon-EC2-instance-to-CST https://stackoverflow.com/questions/11931566/how-to-set-the-time-zone-in-amazon-ec2

ALTER DATABASE target_database OWNER TO new_onwer;

Backup: pg_dump dbname > dbname.bak Restore: psql test < dbname.bak

1. sudo apt-get purge openjdk-\* 2. sudo mkdir -p /usr/local/java 3. sudo cp -r jdk-7u45-linux-x64.tar.gz /usr/local/java 4. cd /usr/local/java 5. sudo tar xvzf jdk-7u45-linux-x64.tar.gz 6. sudo gedit /etc/profile OR sudo nano /etc/profile 7. In the /etc/profile Type/Copy/Paste:   JAVA_HOME=/usr/local/java/ jdk1.8.0_152   JRE_HOME=$JAVA_HOME/jre   PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin   export JAVA_HOME   export JRE_HOME   export PATH 8. sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_152/jre/bin/java" 1 9. sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_152/bin/java" 1 10. sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/local/java/jdk1.8.0_152/jre/bin/javaws" 1 11. sudo update-alternatives --set java /usr/local/java/jdk1.8.0_152/jre/bin/java 12. sud

Go to Start -> Run -> cmd. Go to your pen drive, memory cards or mobile phone directory. Type  del *.lnk  (to delete all link files in the directory) Type  attrib -h -r -s /s /d e:*.* Replace  e  with your drive letter. Then press Enter.