Enabling Ping requests to OCI Instance Rumi, June 29, 2022 If you want to test with Ping requests you’ll need to modify the Ingress rules on the security list associated with the VCN, Subnet, network device, thing, what ever, to allow ICMP packets. Allowing ICMP traffic is not required, it’s an option. Please only take this option if you understand… Continue Reading
Generating an SSH Key Pair on Windows Using the PuTTYgen and use it on OCI with machine instance Rumi, June 29, 2022 The PuTTYgen program is part of PuTTY, an open source networking client for the Windows platform. To generate an SSH key pair on Windows using the PuTTYgen program: Download and install PuTTY or PuTTYgen.To download PuTTY or PuTTYgen, go to http://www.putty.org/ and click the You can download PuTTY here link…. Continue Reading
Install MariaDB 10 on Centos or Springdale Linux Rumi, June 18, 2022 Step 1: Add MariaDB Yum Repository Start by adding the MariaDB YUM repository file MariaDB.repo for RHEL/CentOS and Fedora systems. # nano /etc/yum.repos.d/MariaDB.repo Now add the following lines to your respective Linux distribution version as shown. [mariadb] name = MariaDB baseurl = http://yum.mariadb.org/10.1/centos7-amd64 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1 Continue Reading
Disable ipv6 on Linux Machine Rumi, June 18, 2022 Disable on Centos/RHEL system: 1. Append below lines in /etc/sysctl.conf: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 NOTE : To disable IPv6 on a single interface add below lines to /etc/sysctl.conf : net.ipv6.conf.[interface].disable_ipv6 = 1 ### put interface name here [interface] net.ipv6.conf.default.disable_ipv6 = 1 2. To make the settings affective, execute… Continue Reading
Install Development Tool on CentOS and Debian Rumi, June 17, 2022 Well, in my working domain I face these tools to be installed, so that most of the dependent tools or programs that need to be deployed later don’t face much of dependency issue. So here goes the installation process for both the OS. On CentOS/RHEL system use the follwoing command… Continue Reading
Install Proxmox VE 7 on Debian 11 (Bullseye) Rumi, June 17, 2022July 18, 2023 Step 1: Update Debian OS Ensure your Debian 11 (Bullseye) operating system is upgraded. sudo apt -y update && sudo apt -y upgrade Once the upgrade process is complete, reboot the server sudo systemctl reboot Step 2: Set Proxmox Server hostname Let’s set a hostname on the server sudo hostnamectl… Continue Reading
Delete Old Unused Kernels in Debian Rumi, June 17, 2022 To find out the current version of Linux kernel running on your system, use the following command. $ uname -sr Linux 4.12.0-041200-generic To list all installed kernels on your system, issue this command. $ dpkg -l | grep linux-image | awk ‘{print$2}’ linux-image-4.12.0-041200-generic linux-image-4.8.0-22-generic linux-image-extra-4.8.0-22-generic linux-image-generic Remove Old Unused Kernels… Continue Reading
Install Cacti 1.2 on Debian 11 Rumi, June 17, 2022 First, update the repository index. sudo apt update Install MariaDB Database Install MariaDB from Official MariaDB Mirror Update the repository index and install the required packages. sudo apt update sudo apt install -y software-properties-common dirmngr apt-transport-https wget curl Add signing key to your system. curl -fsSL https://mariadb.org/mariadb_release_signing_key.asc | sudo gpg… Continue Reading
How to Disable Network Manager on CentOS 7 Rumi, May 2, 2022 1. To disable the Network Manager service, perform the following steps: Disable Network Manager with the following commands: CentOS 6, CloudLinux 6, Red Hat Enterprise Linux 6 (RHEL), or Amazon Linux: service NetworkManager stop chkconfig NetworkManager off CentOS 7, CloudLinux 7, or RHEL 7: systemctl stop NetworkManager systemctl disable NetworkManager… Continue Reading
Reset Root Password on Ubuntu 20 Rumi, May 2, 2022 Step 1: Reboot your Ubuntu 20.04 LTS Operating System and load the GRUB menu by holding the Shift Key on Keyboard The first step is to start your computer machine and keep pressing the shift button on your keyboard until the GRUB menu appears, as shown in the picture below:… Continue Reading