Accessing DNS Information using Zone Transfer (AXFR)

Hello, Linux Bind DNS servers have zone transfer (axfr) feature, in this article I will talk about what kind of problems the zone transfer parameter can cause if the DNS configuration is not configured correctly.

Also, in this article, I will talk about how to configure Bind DNS Server.

If the zone transfer configuration is not configured correctly, they can access the DNS records of all domain names on the DNS server by third parties, using this information, attacks can be carried out on the domain names and the servers and devices they are connected to, or even hacking them and causing the information to be leaked.

Continue reading Accessing DNS Information using Zone Transfer (AXFR)

How to Install JAVA 8 on CentOS/RHEL 7/6

This tutorial helps you to install Java 8 or update Java on your system. Read the instruction carefully before downloading Java from the Linux command line.

The Oracle Java 11 is the latest LTS version available to download and install. To install Oracle Java 11 on CentOS and Fedora system follow below tutorial.

Continue reading How to Install JAVA 8 on CentOS/RHEL 7/6

Installation Guide Red Hat Enterprise Linux / Centos 8.x

Red Hat Enterprise Linux 8 version has been released and comes with GNOME 3.28 as the default desktop environment and runs on Wayland. This new release of RHEL is based on Fedora 28 and the upstream Kernel 4.18.

It provides users with a stable, secure and consistent foundation across hybrid cloud deployments with the tools required to support traditional and emerging workloads.This article describes instructions on how to install a minimal version of Red Hat Enterprise Linux 8 using a binary DVD ISO image, this installation is highly suited for developing a customizable server platform without Graphical Interface.

To register and download your evaluation copy of Red Hat Enterprise Linux, simply follow this Link : https://www.redhat.com/wapps/sso/login.html

If you wish to try RHEL 8.1, you can download an evaluation copy giving you a full 30 day free trial (including updates).

Continue reading Installation Guide Red Hat Enterprise Linux / Centos 8.x

Extending a LVM in a Virtual Machine Running on Red Hat or Cent OS

In this article provides steps for extending the root partition residing in a logical volume created with Logical Volume Manager (LVM) in a virtual machine running Red Hat/Cent OS.

Continue reading Extending a LVM in a Virtual Machine Running on Red Hat or Cent OS

Installation Guide Red Hat Enterprise Linux / Centos 7.x

Red Hat Enterprise Linux (RHEL) is a Linux Operating System developed by Red Hat. RHEL is generally aimed at the commercial market. Red Hat Enterprise Linux is available for multiple platforms including x86, x86_64, PowerPC, IBM pSeries and IBM System z (Mainframe).

The following Red Hat Installation guide can be used for installing a Red Hat 7.7 GUI with Server configuration with a custom disk and Static IP addressing scheme.

To register and download your evaluation copy of Red Hat Enterprise Linux, simply follow this Link : https://www.redhat.com/wapps/sso/login.html

If you wish to try RHEL 7.7, you can download an evaluation copy giving you a full 30 day free trial (including updates).

Continue reading Installation Guide Red Hat Enterprise Linux / Centos 7.x

RHEV Manager Session Time

 

Environment Systems :

  • Red Hat Enterprise Virtualization 3.X (RHEV 3.x)
  • Red Hat Enterprise Virtualization 4.X (RHV 4.x)

Issue :

  • After about an hour of idle time in RHEV-M, users get logged off with a “session time-out” message. Can this be disabled? If not, can it be extended?

Continue reading RHEV Manager Session Time

Red Hat Subscription

Red Hat Subscription Management (RHSM) is a customer-driven, end-to-end solution that provides tools for subscription status and management and integrates with Red Hat’s system management tools.

RHSM provides status, inventory, organization, and reporting on Red Hat subscriptions via.

Continue reading Red Hat Subscription

Installation Guide Red Hat Enterprise Linux / Centos 6.x

Red Hat Enterprise Linux (RHEL) is a Linux operating system developed by Red Hat. RHEL is mainly aimed at commercial organisations. RHEL is available on multiple platforms including x86, x86_64, PowerPC, IBM pSeries and IBM System z. RHEL is probably one of the most popular Linux Operating system used by large Enterprises.

RHEL can be downloaded from Red Hat as an evaluation giving you a free 30 day trial.

For further information and to download RHEL, you will need to register on Red Hat’s site:

https://www.redhat.com/wapps/sso/login.html

Many other Linux distributions have been cloned from Red Hat’s Enterprise Linux. These include CentOS and Oracle Linux.

Continue reading Installation Guide Red Hat Enterprise Linux / Centos 6.x