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What Is

This covers topics and articles related to What is Linux. This includes topics which expects explanation of the topic to get more detail on the topic

Linux mount command to access filesystems, iso image, usb, network drives

Linux mount command to access filesystems, iso image, usb, network drives

In this article I will cover various topics using Linux mount command to perform temporary and permanent mount. We will try to access file system, USB drives, ISO images, network drives using Linux mount command ...

Read MoreLinux mount command to access filesystems, iso image, usb, network drives

Categories Linux, How To, What Is Tags filesystem, mount, Tips and Tricks, umount Leave a comment

How to disable tty or enable tty console in Linux ( RHEL / CentOS 7)

How to disable tty or enable tty console in Linux ( RHEL / CentOS 7)

How to enable tty for more than 6 console. How to disable all the tty terminals in Linux. systemd disable tty. systemd enable tty using getty service in Linux.   I have written another article ...

Read MoreHow to disable tty or enable tty console in Linux ( RHEL / CentOS 7)

Categories Tips and Tricks, Linux, What Is Tags SSH, tty Leave a comment

Difference between /dev/tty and /dev/pts (tty vs pts) in Linux

Difference between /dev/tty and /dev/pts (tty vs pts) in Linux

What is the difference between /dev/pts and /dev/tty. What is /dev/tty and /dev/pts. Why do I get /dev/pts instead of /dev/tty on my Linux terminal. TTY vs PTS. /dev/tty vs /dev/pts. What is the difference ...

Read MoreDifference between /dev/tty and /dev/pts (tty vs pts) in Linux

Categories Security, Linux, SSH, What Is Tags SSH 3 Comments

Beginners guide on PKI, Certificates, Extensions, CA, CRL and OCSP

Beginners guide on PKI, Certificates, Extensions, CA, CRL and OCSP

In this article I will try cover some of the key areas related to Certificates so that you get have an overview of Openssl certificates, types, extensions etcs   I have already written multiple articles ...

Read MoreBeginners guide on PKI, Certificates, Extensions, CA, CRL and OCSP

Categories OpenSSL, What Is Tags HTTPS, openssl, security Leave a comment

Basics OpenLDAP Tutorial for Beginners - Understanding Terminologies & Usage

Basics OpenLDAP Tutorial for Beginners - Understanding Terminologies & Usage

This is a multi-part article where I will cover different areas of configuration of OpenLDAP server in CentOS 7 Linux node. You can use below links to refer different parts of this tutorial Basics LDAP ...

Read MoreBasics OpenLDAP Tutorial for Beginners - Understanding Terminologies & Usage

Categories Linux, What Is Tags ldap terminologies, openldap 10 Comments

Understanding nova compute architecture basics in Openstack (flow chart)

Understanding nova compute architecture basics in Openstack (flow chart)

Earlier I had shared an article with the steps to configure ceph storage cluster in OpenStack. Now let me give you some brief overview on the nova compute architecture and how all the services within nova ...

Read MoreUnderstanding nova compute architecture basics in Openstack (flow chart)

Categories Linux, What Is Tags architecture, compute, devops, openstack Leave a comment

Cinder vs Swift storage in OpenStack - Basic Difference and Comparison

cinder vs swift storage

Earlier I had shared an article with the steps to configure ceph storage cluster in OpenStack. Now let me give you some brief overview on comparison and difference between cinder vs swift storage in OpenStack. ...

Read MoreCinder vs Swift storage in OpenStack - Basic Difference and Comparison

Categories Linux, What Is Tags cinder, devops, openstack, swift 5 Comments

How to improve disk IO performance in Linux

How to improve disk IO performance in Linux

In my last article I gave an overview on SystemTap to help you trace and debug kernel modules, Now here before we understand on how to improve disk IO performance, we should understand the basics ...

Read MoreHow to improve disk IO performance in Linux

Categories Storage, How To, Linux, What Is Tags performance, storage 1 Comment
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Also Read

  • Linux mount command to access filesystems, iso image, usb, network drives
  • How to disable tty or enable tty console in Linux ( RHEL / CentOS 7)
  • Difference between /dev/tty and /dev/pts (tty vs pts) in Linux
  • Beginners guide on PKI, Certificates, Extensions, CA, CRL and OCSP
  • Basics OpenLDAP Tutorial for Beginners - Understanding Terminologies & Usage
  • Understanding nova compute architecture basics in Openstack (flow chart)
  • Cinder vs Swift storage in OpenStack - Basic Difference and Comparison
  • How to improve disk IO performance in Linux
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