Linux is an operating system that resembles Unix operating system. The open-source operating system, which is built on the Linux kernel included in Linux distributions.
A Linux distribution, also referred to as a distro, is an operating system created from a set of programmes built on the Linux kernel. The majority of people download one of the many Linux distributions to utilise. Coders, programmers, and gamers are the groups most familiar with Linux operating systems
100 useful linux commands, that may be handy in case of any trouble shooting or user/admin related activities
VxVM cheatsheet
Veritas Volume Manager (VxVM) enables us to manage physical drives as logical devices. Applications and the operating system see a veritas disk/volume as a physical disc with configurable file systems, databases, and other managed data objects.
For computer and Storage Area Network (SAN) systems, VxVM offers simple online disc storage management. In order to boost I/O throughput and safeguard against hardware failure, VxVM can be configured to support the Redundant Array of Independent Disks (RAID) concept. Moreover, VxVM has capabilities that improve disc failure quick recovery and fault tolerance.
Ubuntu VM runs on Windows/Mac/Linux. Multipass can launch and run virtual machines and configure them with cloud-init like a public cloud. Prototype your cloud launches locally for free. It acts as a similar to Oracle Virtual Box or Docker engine
basic troubleshooting commands, whenever customer is telling that filesystem full or system is very slow
syslogs which gets messages sent in systemd-journald and stored the data in the disk. To view the systemd messages execute journalctl and can be used with additional parameters. In this post we are going to see quick howto use journalctl command and how to use it
SMTP Reply codes are used to determine the error in the message, SMTP(Simple Mail Transfer Protocol) is a standard protocol for sending emails, the client sends and the server responds, a response is with the 3 digit code which contains the meaning for the response with the codes, find the below SMTP reply codes
In this post we are going to see how to write a script to find the subnet calculator, we are using korn shell to write. the interpreter we are going to use /bin/ksh, the korn shell supports MacOS, Linux and Unix flavours. This will be helpful for assign the ip address to the server ip planning.
UNIX shell programs executes the user command. User can enter like a command directly or executes a set of commands from a file called as a script file or program. Shell scrips are not compiled, it is interpreted executes line by line.
In this post we are going to see Linux user and group administration, this is applicable for RHCSA Exam for RHEL 8 / 7 versions. We are going to see Linux users and group creation, modification, deletion. Managing user and group can be done by command or GUI tools