Docker Delete all images
Before you can delete a docker image, you need to delete any container that is based on this image. So see how…
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Delete all docker containers
We need to use diff commands to to do this. First lets get list of all containers. docker ps -a -q This…
Backup and Restore Docker Image
To backup the docker image, run To restore a container, run Backup and Restore a Docker Container To backup, run To restore,…
Install x2go Server in Ubuntu 16.04
To install x2Go server in Ubuntu, run add-apt-repository ppa:x2go/stable apt-get update apt-get -y install x2goserver x2goserver-xsession if you don’t have xfce, install…
no matching host key type found. Their offer: ssh-dss
When i try connect to a server, i get error Same happens with scp To fix this, add -oHostKeyAlgorithms=+ssh-dss to the command.…
ioncube
How To Install ionCube on Ubuntu 20.04 Install ionCube on Ubuntu 18.04 Install ionCube on Debian 8 Install ionCube on Debian 9…
Install ioncube on Debian 8
To install ioncube Debian 8, first download the ioncube loader from http://www.ioncube.com/loaders.php cd /usr/local/src wget https://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz tar xvf ioncube_loaders_lin_x86-64.tar.gz cd ioncube/ This…
spf
http://www.openspf.org/SPF_Record_Syntax Here is some SPF examples DMARC record If you need to reject email, add p=quarantine If DMARC failed, remore mail server…
Red Hat acquires CoreOS for $250 mililon
CoreOS is a container-optimized Linux operating system to be used under docker/Kubernetes. On January 30, 2018, Red Hat, Inc. announced that it…
pip
Install pip On CentOS wget https://bootstrap.pypa.io/get-pip.py python get-pip.py On Ubuntu apt install python-pip On Ubuntu, python3 apt install python3-pip Install a python…
usermod
On CentOS, the wheel group allows users in this group to run commands as user root with sudo. To add a user…
Install Node.js on CentOS Server
You can find latest version of Node.js at https://nodejs.org/en/ To install Node.js on CentOS 7/8 Add node.js repository NodeJS 12.x curl -sL…