[Solved] How to disable firewall in Oracle Linux 7.5?


Issue How to disable firewall in Oracle Linux 7.5?  Introduction to firewall in Oracle Linux 7.5 Unlike previous Oracle Linux releases which uses 'iptables' command, the newer Oracle Linux 7.x release uses 'firewalld' command to manage the firewall. Firewalld uses zones and services in comparison to iptables that make use of chains and rules. ...
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[SOLVED] Linux 7 user shows -bash-4.2 instead of username like [[email protected] ~]



Issue On login Oracle Linux 7.5 user shows -bash-4.2 instead of username like [[email protected] ~] Solution Use this command in your terminal to fix this issue:   export PS1='[\[email protected]\h \W]\$ ' If you want to show this prompt show after you reboot, you can try this (with su): echo "export PS1='[\[email protected]\h \W]\$ '" > /etc/profile.d/bash_prompt.sh Envir...
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[SOLVED] How to disable firewall in Oracle Linux 7.5?

Oracle Linux 7.5 Firewall Disabled

Issue I installed Oracle E-Business Suite Release 12.2 in Virtualbox VM, but wasn't able to connect to its front-end from Windows host. After investigation I found that Oracle Linux firewall was open and it was blocking port 8000. I issued the following command to find its status: [[email protected] ~]# systemctl status firewalld ‚óŹ firewalld.serv...
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[SOLVED] How to delete a logical volume and resize existing one with the freed-up space in Oracle Linux 7.5?

Resize Oracle Linux 7.5 Logical Volume

Issue There are two issues that are being addressed here. Let's address them one by one. Issue 1 = How to delete a logical volume in Oracle Linux 7.5?  Solution Step 1. Find the logical volumes that exists in your installation: [[email protected] oracle]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 5.2G 0 5.2G 0% /dev tmpfs 5.2...
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[SOLVED] Installing gparted in Oracle Linux 7.5 using Oracle's own EPEL mirror under Oracle Yum

Installing gparted in Oracle Linux 7.5 using Oracle's own EPEL mirror under Oracle Yum

Issue I wanted to resize my partition but when issue the command  yum install gparted  it wasn't getting gparted installed and simply gave me the error that gparted was not found in Oracle yum repository. So then the question is how can I install gparted in Oracle Linux 7.5 using Oracle's own Yum? Solution Oracle has its own EPEL (Extra P...
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How to fix Cloud Server SSH Session getting disconnected frequently?


Resolution

Simply update /etc/ssh/sshd_config file on your server

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Transaction Check Error: file /etc/pki/rpm-gpg/RPM-GPG-KEY from install of RCT tools conflicts with file from package oraclelinux release

Issue

Error comes after giving startx command on unix terminal:

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Hardening RHEL 7.1 (Maipo) - Part 1 - Services

hardening rhel 10
hardening rhel 11
hardening rhel 12
hardening rhel 13

In this article I will go through a series of steps to configure the most relevant settings to harden a RHEL server.

Services

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Hardening RHEL 7.1 (Maipo) - Part 1 - User access

hardening rhel 01
hardening rhel 02
hardening rhel 03
hardening rhel 05
hardening rhel 06
hardening rhel 07

On this document I will go through a series of steps to configure the most relevant settings to harden a RHEL server.

This document is based on the Red Hat Enterprise Linux 7 Security Guide that can be downloaded from the RedHat network here.

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Installing RHEL 7.1 (Maipo) on Oracle VM VirtualBox - Part 2

InstallingRHEL01
InstallingRHEL02
InstallingRHEL03
InstallingRHEL04
InstallingRHEL05
InstallingRHEL0601
InstallingRHEL0602
InstallingRHEL0603
InstallingRHEL0604
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InstallingRHEL06
InstallingRHEL07
InstallingRHEL08
InstallingRHEL09
InstallingRHEL10

On this blog I will go through the steps required to boot the RHEL 7.1 installation media and complete an installation of a typical WEB server.

If you need help setting up your Oracle VirtualBox VM before starting the install, please che out this other post: Installing RHEL 7.1 (Maipo) on Oracle VM VirtualBox

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Installing RHEL 7.1 (Maipo) on Oracle VM VirtualBox

InstallingRHEL01
InstallingRHEL02
InstallingRHEL03
InstallingRHEL04
InstallingRHEL05
InstallingRHEL06
InstallingRHEL07
InstallingRHEL08
InstallingRHEL09
InstallingRHEL10
InstallingRHEL11
InstallingRHEL12

The purpose of the following guide will be to provide a simple step by step guide on how to install RedHat Enterprise Linux 7.1 over an Oracle VirtualBox VM.

You will need to meet the following pre requisites before you can folow this guide.

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