EasyEngine
EasyEngine is a command line tool to manage/configure Nginx web server. https://easyengine.io To install EasyEngine, run Create Web Site EasyEngine HOWTOs EasyEngine…
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MySQL 8 apt Error The following signatures were invalid
When trying to install MySQL 8 on Ubuntu 18.04, i get following error root@ssdnodes-45790:~# apt update Ign:1 http://download.webmin.com/download/repository sarge InRelease Hit:2 http://download.webmin.com/download/repository…
Google Cloud open a port in firewall
To open port 80 globally for all VMs on google cloud project, run gcloud compute firewall-rules create allow-port80-all –allow tcp:80 –source-ranges 0.0.0.0/0…
Postfix Delete Mails from a user
To delete emails from a particular user from postfix mail queue, run postqueue -p | grep USER_HERE | cut -d’ ‘ -f1…
Configure Failover IP in Ubuntu 18.04 OVH VPS
Default /etc/network/interfaces in Ubuntu 18.04 in OVH VPS look like following. Click here for Ubuntu 20.04 instructions. root@vps624512:~# cat /etc/network/interfaces # ifupdown…
Amazon Route 53 DKIM error
DKIM keys failed to validate on a mail server. The domain used Amazon ROute 53 DNS server. amavisd-new showkeys command print out…
Disable PHP on a folder
A web site had vlunerability, all allowed hacker to upload backdoor script to “uploads” folder used by the script. As a quick…
WordPress Backup and Migration Plugins
Migrate Guru: Migrate & Clone WordPress Free This plugin allow you to transfer your wordpress web site to another hosting for free.…
Create Python Flask Docker Container
Create a folder and change to the folder mkdir python-flask cd python-flask Create file vi Dockerfile Add following content FROM python:2.7-slim WORKDIR…
kubectl
kubectl command is used to manage Kubernetes Clusters. To install kubectl on Linux, run wget https://raw.githubusercontent.com/serverok/server-setup/master/install/kubectl.sh bash kubectl.sh On Ubuntu, you can…