Category: RHCE 7 Study Guide

This tutorial explains Chattr command append (a) and immutable (i) attributes in detail with arguments and operation (read, copy, append, move, hard link & soft link). Learn how to delete a file secured with i attribute, remove a attribute, set/unset/list Read More …

This tutorial explains how Umask permissions, settings and values are defined through (login shell & non-login) in detail. Learn how to change default umask settings (777, 755, 644, 0222, etc.) globally (for all users), locally (for individual user) temporarily and Read More …

This tutorial explains chmod command symbolic notation (r, w, x, a) and octal notation (0, 1, 2, 4) in detail with chmod command arguments and options. Learn how chmod command is used to manage Linux permission levels (user, group and Read More …

This tutorial explains how to configure Squid Proxy server in Linux step by step with practical example. Learn how to use Squid proxy server to allow or deny hosts to access the internet, control what users can access from internet Read More …

This tutorial explains Linux permission levels (owner, group & other) and permission types (read, write & execute) in detail with examples including how to change the ownership of file and directory (with chown and chgrop command) and read the applied Read More …

This tutorial explains how to configure DNS server in RedHat Linux step by step with practical example. Learn how to configure DNS Server (Master, Slave, Caching-only and Forwarding-only), DNS Zone (Forward and Reverse), DNS lookup, Chroot DNS environment and DNS Read More …

This tutorial explains how to configure disk quota in Linux step by step with practical examples. Learn basic concepts of disk quota (Soft limit, Hard limit, Grace period, Block Size and Inode Number) and Linux disk quota management commands (quotacheck, Read More …

This tutorial explains how to configure Printer Server in Linux step by step with practical examples. Learn how to install, configure, share, test and use printer in Linux including a basic overview of CUPS (Common UNIX Printing System) and IPP Read More …

This tutorial explains how to view, list, create, add, remove, delete, resize, format, mount and configure RAID Levels (0, 1 and 5) in Linux step by step with practical examples. Learn basic concepts of software RAID (Chunk, Mirroring, Striping and Read More …

This tutorial explains how to view, list, create, add, remove, format, mount, resize and delete Physical Volume, Volume Group and Logical Volumes in Linux step by step with practical examples. Learn fundamental and basic concepts of LVM, LVM management and Read More …