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NETSTAT – Linux Network Management

netstat (network statistics) is a command line tool for monitoring network connections both incoming and outgoing as well as viewing routing tables, interface statistics etc. netstat is available on all Unix-like Operating Systems and...

IOTOP – (Monitor Linux Disk I/O) in RHEL, CentOS and Fedora

Iotop, is much similar to Linux familiar Top command that we used to monitor server processes and usage. In this article we will show how to install Iotop monitoring utility in RHEL 6.3/6.2/6.1/6/5.8, CentOS 6.3/6.2/6.1/6/5.8 and Fedora 17,16,15,14,13,12 using yum...

Linux Basics – dd and Devices

The program dd is extremely useful when working with block and character devices. This program’s sole function is to read from an input file or stream and write to an output file or...

Linux Basics – The sysfs Device Path

The traditional Unix /dev directory is a convenient way for user processes to reference and interface with devices supported by the kernel, but it’s also a very simplistic scheme. The name of the...

FIND Command Practical Examples

The Linux Find Command is one of the most important and much used command in Linux systems. Find command used to search and locate list of files and directories based on conditions you...

XFS Quota Management

The XFS quota subsystem manages limits on disk space (blocks) and file (inode) usage. XFS quotas control or report on usage of these items on a user, group, or directory or...

How to Create XFS File System

To create a XFS file system, use the mkfs.xfs /dev/device command. In general, the default options are optimal for common use. When using mkfs.xfs on a block device containing an existing file system, use the -foption to...

XFS File System Overview

XFS is a highly scalable, high-performance file system which was originally designed at Silicon Graphics, Inc. XFS is the default file system for Red Hat Enterprise Linux 7. Main Features XFS supports metadata journaling, which facilitates quicker...

RHEL/CentOS 7 – Using the DATE Command

The date utility is available on all Linux systems and allows you to display and configure the current date and time. It is frequently used in scripts to display detailed information about the...

RHEL/CentOS 7 – Using the TIMEDATECTL Command

The timedatectl utility is distributed as part of the systemd system and service manager and allows you to review and change the configuration of the system clock. You can use this tool to change the...