To clone your VM and spawn new instances in KVML
# virt-clone --original {Domain-Vm-Name-Here} --auto-clone
OR
# virt-clone --original {Domain-Vm-Name-Here} --name {New-Domain-Vm-Name-Here} --auto-clone
OR
# virt-clone --original {Domain-Vm-Name-Here} \
--name {New-Domain-Vm-Name-Here} --file {/var/lib/libvirt/images/File.Name.here}
Continue reading “Cloning KVM virtual machine using CLI” »
Step 1 – Install and Enable Remi Repository
Firstly, we will add the Remi repository to the CentOS 7 system. The Remi repository provides the latest version of Redis package for our installation.
Before adding the Remi repository, let’s install the EPEL repository and yum utility packages.
sudo yum install epel-release yum-utils
Now add the Remi repository for CentOS 7 using the yum command below.
sudo yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
After that, enable the ‘remi’ repository using the yum-config-manager tool as below.
sudo yum-config-manager --enable remi
The Remi repository has been added and enabled on the CentOS 7 system, check using the yum command Continue reading “Install and Secure Redis on CentOS 7” »
Step 1: Installing Docker
The Docker installation package available in the official Debian repository may not be the latest version. To ensure we get the latest version, we’ll install Docker from the official Docker repository. To do that, we’ll add a new package source, add the GPG key from Docker to ensure the downloads are valid, and then install the package.
First, update your existing list of packages:
sudo apt update
Next, install a few prerequisite packages which let apt use packages over HTTPS:
sudo apt install apt-transport-https ca-certificates curl gnupg2 software-properties-common
Then add the GPG key for the official Docker repository to your system: Continue reading “Install Lancache on Debian 10” »
Requirements
Installations: Continue reading “Install LookingGlass on Linux” »
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 apt-get update sudo apt-get upgrade sudo apt-get full-upgrade sudo apt-get --purge autoremove
Reboot the Debian 9.x stretch to apply the kernel and other updates: Continue reading “Upgrade Debian 9 to Debian 10” »
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 11 split files altogether- Continue reading “Large file split and join in linux” »
Follow the steps below to install the latest stable version of MongoDB on your CentOS server :
Enabling MongoDB repository
To add the MongoDB repository to your system, open your text editor and create a new YUM repository configuration file named mongodb-org.repo inside the /etc/yum.repos.d/ directory:
nano /etc/yum.repos.d/mongodb-org.repo
[mongodb-org-4.0] name=MongoDB Repository baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/4.0/x86_64/ gpgcheck=1 enabled=1 gpgkey=https://www.mongodb.org/static/pgp/server-4.0.asc
If you want to install an older version of MongoDB, replace each instance of 4.0 with your preferred version. Continue reading “Install MongoDB on CentOS 7” »
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 gateway always, you can change interface metrics for the interfaces’ configuration you don’t want to use:
EDIT: These instructions are for Windows 7, XP might be different. You shouldn’t be using XP anyway.
Src: https://superuser.com/questions/735479/how-does-a-windows-computer-behave-when-it-has-multiple-default-gateways/735569
nano /usr/local/vesta/nginx/conf/nginx.conf
find these lines:
# Vhost
server {
listen 8083;
update to a new new port
# Vhost
server {
listen 9000;
service vesta restart
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 LVM for the remaining logical volumes
Space utilisation as following:
[root@vcd-c1-s1 ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 3.9G 0 3.9G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 8.8M 3.9G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/mapper/centos-root 6.2G 1.9G 4.4G 31% / /dev/sda1 1014M 179M 836M 18% /boot tmpfs 783M 0 783M 0% /run/user/0
We basically need to: Continue reading “CentOS 7 XFS disk resizing” »