Upgrade Debian 9 to Debian 10 Rumi, July 19, 2021 Update ALL existing installed packages Before you upgrade your Debian version to 10, you must apply all security patches and pending upgrades to Debian 9 itself Hence, Type the following apt command or apt-get command: sudo apt update sudo apt upgrade sudo apt full-upgrade sudo apt –purge autoremove OR sudo… Continue Reading
Large file split and join in linux Rumi, July 19, 2021 Let’s assume we have a large file of 102 GB and named as “vzdump-lxc-103-2021_07_19-12_05_06.tar.lzo”. We’d like to split this large file into 10GB of partial file. Let’s apply the split command as below- split -b 102400M vzdump-lxc-103-2021_07_19-12_05_06.tar.lzo repo. Wait for a while, the execution continues, and once over, you’ll find… Continue Reading
Using multiple gateways on Windows system Rumi, July 3, 2021 If Windows has multiple interfaces connected to several networks that use DHCP, it installs default gateways for all those interfaces. By default, Windows sets the metric of the default gateways to the same, effectively leading to random selection of default gateway. If you want to make Windows to select certain… Continue Reading
CentOS 7 XFS disk resizing Rumi, June 4, 2021 Couldn’t find any article that explained step by step how to resize the main disks volume in a CentOS 7 vm. In my example I started witha single disk of 8GB and expanded to 20GB. I have two partitions on disk sda sda1 type Linux for boot sda2 type Linux… Continue Reading
Proxmox Communication Failure (0) Cluster Node on WebGUI Rumi, May 21, 2021 Was getting “Communication Failure (0) Cluster Node” Applied the following command on the faulty node- pvecm updatecerts Continue Reading
Install Virtualbox 5.2/6.1 on Ubuntu 16 headless mode Rumi, May 21, 2021 Install Prerequisites Before installing VirtualBox 5.2/6.1, please install these packages below if your systems don’t already have them installed…. sudo apt update sudo apt-get install gcc make linux-headers-$(uname -r) dkms Add VirtualBox Repository If you want to always get the latest versions of VirtualBox when they become available, you’ll want… Continue Reading
Reset user password of Discourse Rumi, May 21, 2021May 21, 2021 Discourse is an excellent platform- super fast, super organized and super fresh looking. It has quite standarized and additional security options in the application UI. However, found a freat issue of updating any user of this platform as Admin (I was havign difficulties of self user password reset options, as… Continue Reading
How to remove Virtualbox extpack Rumi, May 19, 2021 The following commands show examples how to list extension packs and remove one: $ VBoxManage list extpacks Extension Packs: 1 Pack no. 0: Oracle Virtual Machine VirtualBox Extension Pack Version: 4.1.12 Revision: 77218 Edition: Description: USB 2.0 Host Controller, VirtualBox RDP, PXE ROM with E1000 support. VRDE Module: VBoxVRDP Usable:… Continue Reading
Install webmin on Centos 7 using Yum Rumi, May 15, 2021 Create and open this new file using your text editor: sudo vi /etc/yum.repos.d/webmin.repo Then add these lines to the file to define the new repository: nano /etc/yum.repos.d/webmin.repo [Webmin] name=Webmin Distribution Neutral #baseurl=http://download.webmin.com/download/yum mirrorlist=http://download.webmin.com/download/yum/mirrorlist enabled=1 Save the file and exit the editor. Continue Reading
Reset lost root password on Ubuntu 18.04/20.x Rumi, May 15, 2021 Boot Into GRUB menu The first step is to reboot into the GRUB menu. If Ubuntu 18.04 Bionic Beaver is the only operating system installed you need to keep pressing SHIFT for the GRUB menu to show up. Continue Reading