IPtables VS TCPwrapper VS SSHD config VS /etc/security/access.conf VS PAM

Q.
In how many ways, you can restrict a user to accesss a linux system ?
In how many ways, you can restrict an IP to accesss a linux system ?

Solution:
1. Using IPtables
2. Using TCPwrapper
3. SSH conf file
4. /etc/security/access.conf file

Updating Linux system to a specific release instead of the highest available version

System update to a specific release rather than upgrading it to the highest version:

GPT partitioning steps

Steps of creating the GPT partitioning:

Mounting Windows share on Linux system

Steps to share the Windows shared partitions to a Linux system:

Prechecks one-line script to take OS configuration file backup for manual patching in Linux

One-line script to collect Linux OS important configuration details:

Issue with Networker service not able to start in RHEL

Basic steps to solve the networker backup service starting issue in Linux

Hyperic installation issue in Linux || Error: /tmp/agent.encrypt.lock is locked. can't continue.

Solving hyperic monitoring tool installation issue:

Cacti installation and configuration

Collabtive Configuration

Roundcube Webmail installation

Multipathing installation and configuration in OEL

Samba Configuration in RHEL 6

Configuring ulimit in RHEL 6

Understanding load average in top command in linux

Using newly attached HDD

Increase the LVM partition size at runtime in RHEL

Migrating Volume Groups (VGs) from one system to another system

Using attached LUNs in the server

How to Setup Syslog Server and Syslog Client

Setting ACL (Access Control List)