• VMware

    Learn about VMware virtualization for its products like vsphere ESX and ESXi, vCenter Server, VMware View, VMware P2V and many more

  • Linux

    Step by step configuration tutorials for many of the Linux services like DNS, DHCP, FTP, Samba4 etc including many tips and tricks in Red Hat Linux.

  • Database

    Learn installation and configuration of databases like Oracle, My SQL, Postgresql, etc including many other related tutorials in Linux.

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    How to configure and Install kdump (crashkernel) in RHEL/CentOS 7 How to configure and Install kdump (crashkernel) in RHEL/CentOS 7 Reviewed by admin on Monday, August 20, 2018 Rating: 5
    Step by step guide to implement/modify quota (soft and hard limit) for user, add/modify grace period and more in Linux with examples Step by step guide to implement/modify quota (soft and hard limit) for user, add/modify grace period and more in Linux with examples Reviewed by admin on Thursday, August 16, 2018 Rating: 5
    How to fix "NoValidHost: No valid host was found. There are not enough hosts available" during overcloud deployment (openstack) How to fix "NoValidHost: No valid host was found. There are not enough hosts available" during overcloud deployment (openstack) Reviewed by admin on Thursday, August 16, 2018 Rating: 5
    Final Part 3: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage) Final Part 3: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage) Reviewed by admin on Wednesday, August 15, 2018 Rating: 5
    Part 2: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage) Part 2: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage) Reviewed by admin on Wednesday, August 15, 2018 Rating: 5
    Part 1: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage) Part 1: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage) Reviewed by admin on Wednesday, August 15, 2018 Rating: 5
    How to check memory usage of an individual process or application/program in Linux How to check memory usage of an individual process or application/program in Linux Reviewed by admin on Tuesday, August 07, 2018 Rating: 5
    How to enable or disable transparent (THP) and explicit (nr_hugepages) hugepage and check the status in Linux with examples (explained in detail) How to enable or disable transparent (THP) and explicit (nr_hugepages) hugepage and check the status in Linux with examples (explained in detail) Reviewed by admin on Sunday, August 05, 2018 Rating: 5
    What is transparent hugepage (THP) and how to check THP usage per process in Linux (Explained) What is transparent hugepage (THP) and how to check THP usage per process in Linux (Explained) Reviewed by admin on Sunday, August 05, 2018 Rating: 5
    How to lock or unlock a root and normal user account using pam_tally2 and pam_faillock after certain number of failed login attempts in Linux How to lock or unlock a root and normal user account using pam_tally2 and pam_faillock after certain number of failed login attempts in Linux Reviewed by admin on Friday, August 03, 2018 Rating: 5
    How to configure offline yum repository using DVD and HTTP or Apache server over the network in RHEL / CentOS 7 How to configure offline yum repository using DVD and HTTP or Apache server over the network in RHEL / CentOS 7 Reviewed by admin on Saturday, July 28, 2018 Rating: 5
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