Detailed walkthrough of building a dedicated KVM/libvirt hypervisor with XFS tuning, hugepages, 10GbE tuning, and automation.

How to configure and manage console log messages on network devices.

Step-by-step guide to installing EVE-NG on Ubuntu 24.04 LTS bare metal server for running network labs.

Lab guide for setting hostname on a Cisco switch in EVE-NG with IOL images.

How to Install NetLab.Tools on Ubuntu/Debian for managing network simulation and testing scenarios.

OpenVPN 2.4 became the default version your connections use. Due to incompatibility in compression settings, data traffic is halted but connection is not dropped.

Open your .ovpn and comment the following line: route remote_host 255.255.255.255 net_gateway

Export your /public directory and make sure it should have read-only permission, mount /public permanently on /mnt/secure.

Generally when a network is configured from virsh-define for a particular range say 192.168.4.0 it gateway will be automatically assigned to 192.168.4.1.

Openvswitch is a virtual switch production level software, that can be used in virtual switch in VM environments like kvm, virtualbox etc.

Openvswitch is the software used on both physical and virtual environments to implement L2 switching.

KVM supports diskless booting of operating systems over a network, kvm default network can be configured to act as a pxe server.

Libvirtd by default uses dnsmasq to provide ip address for kvm host vms automatically when libvirtd daemon is started.

wireshark is a packet analyzer tool used to troubleshoot network issues, when run as a normal user it does not list the interfaces to fix this follow the below steps.

Configure a Linux software bridge for KVM virtual machines on Fedora 26.

Disable SSH DNS lookups to speed up connections when connecting via IP address.

Set up a complete mail server with Sendmail, Dovecot, and Squirrelmail on Fedora 26.

Fix DNS resolution issue when using static IP configuration on Fedora 26 that prevents dnf updates.