When orchestrating a playbook against multiple hosts, you may need to pull facts from one host in order to feed those values to another host. For example, a database master may need to provide its IP address to its many replicas, or a CA certificate from a controller may need to be distributed among its … Ansible: accessing a fact from a different host using cached facts
In order to expose KVM virtual machines on the same network as your bare-metal Host, you need to enable bridged networking. In this article, I’ll show how to implement KVM bridged networking on Ubuntu 22.04 using Netplan. This bridged network will expose the KVM Guest OS as a peer on the upstream network, with no … KVM: Creating a bridged network with NetPlan on Ubuntu 22.04
UPDATE September 2022: New article for bridged networks written for Ubuntu 22.04 In order to expose KVM virtual machines on the same network as your Host, you need to enable bridged networking. In this article, I’ll show how to implement KVM bridged networking on Ubuntu 18.04 bionic using Netplan. This bridged network will expose the … KVM: Creating a bridged network with NetPlan on Ubuntu 18.04 bionic
Syslog is a message logging standard has been around for decades, but has renewed popularity as a method of log capture with the advent of containerization and centralized logging solutions. Enabling an Ubutu 14.04 or 16.04 host to act as a syslog server only takes a few simple steps.
tcpdump comes standard on Ubuntu servers and is an invaluable tool in determining traffic coming in and out of a host. As network infrastructures have become more complex and security conscious, validating network flow from client hosts through potentially multiple proxies and ultimately to a destination host and port has become more important than ever. … Ubuntu: Using tcpdump for analysis of network traffic and port usage