December 24, 2019 in Tips and Tricks, Ubuntu
show total of disk space $ df -h –total which will show it in one line as (1) total space (2) total space used (3) total space still available (4) percentage of drive used. All of this in gigabytes. I mapped this to a shell command dspace and when I type that into terminal it instantly shows […]
December 23, 2019 in Learning, Tips and Tricks, Ubuntu
Fail2ban is a log-parsing application that monitors system logs for symptoms of an automated attack on your Linode. When an attempted compromise is located, using the defined parameters, Fail2ban will add a new rule to iptables to block the IP address of the attacker, either for a set amount of time or permanently. Fail2ban can […]
December 21, 2019 in Tips and Tricks
try this. Launch a new instance (recovery instance). Stop the original instance (DO NOT TERMINATE) Detach the volume (problem volume) from the original instance Attached it to the recovery instance as /dev/sdf. Login to the recovery instance via ssh/putty Run sudo lsblk to display attached volumes and confirm the name of the problem volume. It […]
December 20, 2019 in Tips and Tricks, Ubuntu
Varnish Cache is a web application accelerator that can be used as a proxy to your Apache web server. The open-source software sits in front of your web server to serve web traffic very fast. If you are running multiple servers, Varnish Cache can also be used as a load balancer. Varnish works by caching […]
December 11, 2019 in Php, Tips and Tricks, Ubuntu
Useful Tips to Secure PhpMyAdmin Login Interface Change Default PhpMyAdmin Login URL Enable HTTPS on PhpMyAdmin Password Protect on PhpMyAdmin Disable root Login to PhpMyAdmin Prevent remote usage of phpmyadmin Change password frequently Check configuration /etc/phpmyadmin
December 11, 2019 in Tips and Tricks
Security Checks for Server Susceptible to man-in-the-middle attacks – 3 Insecure SSL/TLS versions available HSTS header not prepared for preload list inclusion Secure cookies not used Domain at risk of being hijacked – 4 Domain registry deletion protection not enabled Domain registry transfer protection not enabled Domain registry update protection not enabled Domain renewal prohibited […]
December 11, 2019 in Tips and Tricks, Ubuntu
UFW, or Uncomplicated Firewall, is an interface to iptables Prerequisites To follow this tutorial, you will need: UFW is installed by default on Ubuntu. If it has been uninstalled for some reason, you can install it with sudo apt install ufw. Then make sure the value of IPV6 is yes.
November 25, 2019 in Learning, Tips and Tricks
What is Kubernetes Kubernetes clusters host containerised applications in a reliable and scalable way. Having DevOps in mind, Kubernetes makes maintenance tasks such as upgrades dead simple. What is MicroK8s MicroK8s is a CNCF certified upstream Kubernetes deployment that runs entirely on your workstation or edge device. Being a snap it runs all Kubernetes services natively (i.e. no virtual machines) while […]
November 25, 2019 in Learning, Tips and Tricks
DevOps is a set of practices that automates the processes between software development and IT teams, in order that they can build, test, and release software faster and more reliably. The concept of DevOps is founded on building a culture of collaboration between teams that historically functioned in relative siloes. The promised benefits include increased trust, […]
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