Ansible: Using a Bastion ( Jumphost ) and ProxyCommand Problem Have you ever encountered a situation when you want to securely access the production server using Ansible via the jumphost. In real scenario for security reason production servers are only accessible using the jumphost. If we want to directly connect the production server using Ansible […]
Running Remote commands and Managing Files via Spacewalk
Running Remote commands and Managing Files via Spacewalk Overview In this article we are going to cover – Run remote command. Deploy file through Spacewalk. Spacewalk Installation and Configuration Please check my previous article for Spacewalk installation and configuration using the below link. Spacewalk Installation and Configuration Managing Spacewalk Channels and Repositories Please check my […]
Spacewalk Client Installation and Register with Spacewalk Server
Spacewalk Client Installation and Register with Spacewalk Server Overview In this article we are going to cover – Install Spacewalk clients. Subscribe channels for the clients. Install packages from the Spacewalk server’s Channel. Spacewalk Installation and Configuration Please check my previous article for Spacewalk installation and configuration using the below link. Spacewalk Installation and Configuration […]
Managing Spacewalk Channels and Repositories
Managing Spacewalk Channels and Repositories Overview In this article we are going to cover – Create a spacewalk channel. Create a repository. Download the package on Spacewalk server. Generate the activation key. Spacewalk Installation and Configuration Please check my previous article for Spacewalk installation and configuration using the below link. Spacewalk Installation and Configuration Brief […]
Spacewalk Server Installation and Configuration
Spacewalk Server Installation and Configuration Overview In this article we are going to cover – Spacewalk Server Installation and Configuration. Prerequisites Two CentOS/any Linux OS installed machine, one for spacewalk Server and other for spacewalk Client. Proper networking access between the spacewalk server and client machines. I assume that you have the basic knowledge of […]
Script to Get the Full Linux System Information
Problem Have you ever encountered a situation when you want the full Linux server info in single file including the hostname, OS, CPU, RAM, IP, Route table, Volume, Partition, Boot and Gurb etc. Solution We will create the shell script to get all the Linux system info in single file in a managed way. In […]
Check User Exist or not on Remote server
Problem Have you ever encountered a situation when you want to check particular user exist or not on thousands of remote machines. Suppose we have a list of remote machines and on each machine we want to check the user is exist or not. Solution We are creating the python script to solve the above […]
Securely Copy Files on Remote Machine in Batch-mode
Problem Have you ever encountered a situation when you want to securely copy thousands of files to remote machine in batch mode. Suppose we have 10k files on local machine and each file have size of 1GB. We want to copy all files to remote machine but because of bandwidth issue we can copy only […]
BIND DNS
Installation and Configuration of BIND DNS Overview In this article we are going to cover – DNS Server Installation and Configuration DNS Zone Configuration Forward and Reverse Lookup Files Prerequisites Two CentOS/any Linux OS installed machine. Proper networking access between the machines and outside world. In this article we are using the below machine: Master […]
Keepalived-Nginx-AutoFailover
High Availability Web Server using Keepalived with Nginx AutoFailover Overview In this article we are going to cover – Launching a high availability website which is running on nginx using Keepalived. Prerequisites Two CentOS/any Linux OS installed machine, one for LB1 and other for LB2. Proper networking access between the machines and […]