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Welcome to my blog!
This site is intended for anyone working with Linux who has encountered problems and is seeking quick solutions or simply wishes to study Linux. This is not an ordinary blog and is not updated regularly. I have organized Linux-related subjects into several topics, and as I find new information, solutions, and interesting material, I will add it to its respective topic. You can read about many things in the world of Linux here.

The structure of each subject is very similar. First, I provide a general overview of the topic with the most important terms and definitions. Then, I include some important/useful commands that are likely needed for everyday work. Finally, I offer solutions to common situations that could arise during the daily work of an administrator.

I have endeavored to keep explanations as simple as possible so that navigation through this site should be easy without any additional instructions. All materials included here were gathered by me through personal experience, forums, and other internet sources. If I come across interesting data that I think is valuable, I will publish it on this blog. Essentially, this blog represents my personal viewpoint on Linux-related topics and is not an official site. While most of the content has been successfully tested, please note that you may encounter typos, missing steps, and erroneous data (I cannot guarantee that everything will work perfectly), so please examine and consider carefully before taking action.

I hope you find this site helpful for your work!

Vallabh Darole 

Topics covered in this blog:
  1. Automation: Ansible
  2. Automation: Create a Virtual Machine on vSphere using Ansible
  3. Automation: Installing Zabbix using Ansible
  4. Automation: Jenkin Server on Rocky Linux 8.
  5. Automation: Lamp in same server
  6. Automation: Lamp Website Deployment on Web01 and Database on Db01
  7. Automation: Puppet 6
  8. Automation: Puppet 7
  9. Backup: OS backup with rear utility
  10. Cheat: Cloud
  11. Cheat: DevOps Cheat
  12. Cheat: Linux-12June21
  13. Cheat: Linux-2016
  14. Cheat: Ubuntu
  15. Cloud: AWS Beginner's Guide
  16. Cloud: Microsoft Azure Beginner's Guide
  17. Cloud: Resizing the Root Partition on an AWS Linux Instance
  18. Disk Management: fdisk and parted
  19. Disk Management: LVM
  20. Disk Management: Storage Data Migration on Physical Linux Servers
  21. Interview: Linux01
  22. Interview: Linux02
  23. Interview: Linux03
  24. Interview: Puppet
  25. Interview: Redhat-Satellite
  26. Interview: Tell me about yourself.
  27. Linux System Performance Monitoring.
  28. Monitoring: Zabbix-4 on CentOS 7
  29. Monitoring: Zabbix-5 on CentOS 7
  30. Project 1: Web Application on vvm06 and MariaDB Database on vvm07
  31. Project 2: Web Application and MariaDB Database with PHP-MYADMIN
  32. Project 3: WordPress on Ubuntu 18
  33. Project 4: Cluster on CentOS 7
  34. Project 5: Deployment and Configuration of Infrastructure Project base on Linux
  35. Project 6: GIT
  36. Project 7: Deployment and Configuration of Infrastructure Project base on Linux
  37. Repository: OS Patching on Centos 7
  38. Repository: GITHUB
  39. Repository: Local Repository on CentOS 7 using reposync
  40. Repository: Open Source satellite
  41. Repository: Redhat Satellite
  42. Repository: Redhat Satellite and Capsule
  43. Service : NFS Server on CentOS 7 / RHEL 7
  44. Service: Apache Tomcat 10 on Ubuntu 20.04
  45. Service: Centralized log server.
  46. Service: DNS Server on Centos 7
  47. Service: enable/analysis Kdump
  48. Service: Load Balance with HA Proxy
  49. Service: NTP (Date/Time )
  50. Service: Postfix Mail Server on CentOS 7
  51. Service: Web Service (Apache).
  52. Shell-Script: AWK SED
  53. Shell-Script: Create Server Inventory using script.
  54. Shell-Script: Pre-Post-Check for CentOS-7
  55. Shell-Script: Pre-Post-Check for ubuntu 18
  56. Shell-Script: Remote command through SSH
  57. Troubleshooting: How to fix delay in SSH login
  58. Troubleshooting: How to recover "/etc/shadow" file in Centos 7
  59. Troubleshooting: How to Reset Root Password on CentOS 7
  60. Troubleshooting: LVM
  61. Troubleshooting: Memory (cache issue)
  62. Upgrade Ubuntu 18.04 LTS to Ubuntu 20.04 LTS
  63. Upgrade: RHEL 7 to RHEL 8
  64. Virtualization: VMWare Virtualization
  65. Virtualization: Docker on CentOS 7
  66. Virtualization: Docker on Ubuntu
  67. Virtualization: Kernel based Virtual Machine centos 7
  68. Virtualization: Kernel based Virtual Machine on Rocky Linux 8
  69. Virtualization: Kubernetes
  70. Virtualization: Kubernetes Cluster 1.28
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