If you are running Linux, you have several alternatives to put second Ethernet interface for good use.
Virtualization is the process of abstracting computing resources such that multiple operating system and application images can share a single physical server, bringing significant cost-of-ownership and manageability benefits. Through its Oracle VM product, Oracle offers scalable, low-cost server virtualization for heterogeneous applications.
Oracle VM is free server virtualization software that fully supports both Oracle and non-Oracle applications, and is three times more efficient than other server virtualization products.
Continue reading “Download of the day: Oracle VM”
The xm command is the main command line interface for managing Xen guest domains. The program can be used to create, pause, and shutdown domains. It can also be used to list current domains, enable or pin VCPUs, and attach or detach virtual block devices.
Please note that before running any one of the following command you must run xend ( Xen control daemon aka service) and must be run as privileged user. Running xm command as non root will return an error.
I hope following XEN status monitoring cheat sheet will save your time.
Continue reading “XEN Server Status Monitoring Command Cheat Sheet”
Explains how to configure ip aliasing under Ubuntu Linux operating system so that you can have multiple IP address assigned to a single interface.
Finally, today I had implemented NIC bounding (bind both NIC so that it works as a single device). Bonding is nothing but Linux kernel feature that allows to aggregate multiple like interfaces (such as eth0, eth1) into a single virtual link such as bond0. The idea is pretty simple get higher data rates and as well as link failover. The following instructions were tested on:
- RHEL v4 / 5 / 6 amd64
- CentOS v5 / 6 amd64
- Fedora Linux 13 amd64 and up.
- 2 x PCI-e Gigabit Ethernet NICs with Jumbo Frames (MTU 9000)
- Hardware RAID-10 w/ SAS 15k enterprise grade hard disks.
- Gigabit switch with Jumbo Frame
I use ADSL at home via ISP modem. As soon as my eth0 comes up I would like to have my firewall script get executed and setup the iptables firewall rules for me.
In this quick post I will explain how to add and configuring a network card under FreeBSD operating system using command line options.