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Set Up and Use Yum Repositories on Redhat / CentOS
We can install new software on Red Hat/CentOS Linux with “yum install packagename” command from console. Running this command first checks for existing YUM Repository configuration files in /etc/yum.repos.d/ directory. It reads each YUM Repository configuration file to get the information required to download and install new software, resolves software dependencies and installs the required […]
How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
This is the full step-by-step procedure to resync a master-slave replication from scratch: At the master: And copy the values of the result of the last command somewhere. Without closing the connection to the client (because it would release the read lock) issue the command to get a dump of the master: Now you can release the […]
Docker Cheat Sheet
Docker Terms This section defines some of the most useful Docker terms. Docker Image: A set of read-only files. These files are a part of an operating system that is required to run a Docker container. Dockerfile: A simple text file that contains all the commands a user could call in the command line to […]