In this blog post, I’ll guide you through setting up Keepalived for high availability on a multi-node system. Keepalived uses the VRRP (Virtual Router Redundancy…
Linux cheat sheet
Tag: ubuntu
First, you need to identify the partition that you want to resize. You can use the command “lsblk” to list all the available disks and…
Open vim /etc/sysctl.conf Add following # Increase size of file handles and inode cache fs.file-max = 2097152 # Do less swapping vm.swappiness = 10 vm.dirty_ratio…
Remove the current CNI configuration with : microk8s kubectl delete -f /var/snap/microk8s/current/args/cni-network/cni.yaml Edit /var/snap/microk8s/current/args/kube-proxy and update the –cluster-cidr=10.1.0.0/16 argument with the new CIDR. Restart MicroK8s with: microk8s stop microk8s…
In this article, I’d like to explain how to implement one of the more common and simple methods of securing the ELK Stack — deploying…
A Site-to-site VPN is a type of VPN connection that is created between two separate locations. It provides the ability to connect geographically separate locations. for example a linux…
sudo apt-get install snmpd sudo apt-get install snmp sudo mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.bak Create a blank /etc/snmp/snmpd.conf file with the following: rocommunity public Modify /etc/default/snmpd Change…
If you want to duplicate your traffic on your Nginx server to another server you will need to create mirror location. This is very useful…
This tutorial should work on most of the Ubuntu versions, I have tested it on Ubuntu 18.04 PostgreSQL is a powerful open-source database management system.…
Past year I heard lots about Snaps and Flatpak and finally decided to study it in details. I was amazed how easy and flexible they…