Top 30 Linux interview questions | linux interview question and answer - RHEL6/7

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Top 35 Linux interview questions | Linux interview question and answer - RHEL6/7

Linux interview question and answer:

In this article, we will discuss multiple Linux basics interview questions and also help us to solve day to day Linux related issues and enhance our knowledge. This topic includes all commands which is very help full for Linux command interview questions also.


  1. Linux boot up process | boot process in linux step by step
  2. How to Hide Apache and PHP version from HTTP Headers in RHEL
  3. Different Run Levels in Linux
  4. Comparison of the service utility with systemctl – RHEL-7 
  5. How to Enable or Disable services on boot with chkconfig | systemctl – RHEL-6/7/8 
  6. YUM Update ERROR: 28, 'Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds' Trying other mirror 
  7. Remove RPM-package/Disable YUM Repository – RHEL and CentOS 
  8. How to Set Up and Configure latest yum repository on CentOS 
  9. Update CentOS packages using yum update command without upgrading to minor release
  10. Update CentOS : Upgrade CentOS to latest version using yum command (CentOS7.0/7.1/7.2/7.3/7.4/7.5/7.6 to CentOS 7.7)
  11. Install VMware Tools in RHEL
  12. Enable virt-who service for RHEL subscription 
  13. Unsubscribe RHEL 
  14. Uninstall Self-Extracting Java Installer and Apache service in RHEL 
  15. Extend Disk Space using LVM  
  16. How to Register a system and Enable Red Hat Subscription
  17. Kernel panic not syncing vfs unable to mount root fs on unknown-block
  18. Yum error - package is a duplicate with
  19. Linux hung_task_timeout_sec | Password prompt take so long to appear 
  20. Can not find RHNS CA file ERROR: can not find RHNS CA file: /usr/share/rhn/RHN-ORG-TRUSTED-SSL-CERT
  21. How to install and initialize the PostgreSQL instance after installation
  22. psql: could not connect to server: Permission denied
            Is the server running locally and accepting
            connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
  23. Reset Postgress user password in PostgreSQL
  24. Yum doesn't have enough cached data to continue
  25. Configure SNMP in Linux [RHEL7/RHEL8/CentOS]
  26. GUI not working in RHEL7/CentOS7
  27. X11 not working in RHEL7/CentOS7
  28. How to set up the NTP service - [RHEL7/CENTOS7]
  29. How to install glibc 2.14 on RHEL 6/ RHEL 7/ CentOS 7
  30. How to check firewall status in RHEL6/RHEL7 
  31. Single User Mode: Resetting/Recovering Forgotten Root User Account Password in RHEL7/CentOS7  
  32. Install rpm packages in rescue mode[RHEL7/CentOS7] 
  33. [SOLVED] HTTPS Error 404 - Not Found Trying other mirror-RHEL7 
  34. Input/Output Errors During XFS Filesystem Access In RHEL7/CentOS7

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