To prevent this you alias the 10.1.1.1 address (cluster address as it is called) on the loopback adapter of the www1 and www2 servers and trick them into to thinking that 10.1.1.1 is a valid address ...

Last week I was at Cisco Live in Orlando and met, yet again, some people that had been taught one must set the TTL to 2 for two directly connected routers to be able to eBGP peer between their ...

The ifconfig command can tell you a lot about your Unix server’s connection to your network and the role it’s playing in both generating and receiving network traffic. The newer ip command does much ...

Every machine on the the Internet has a unique number assigned to it, called an IP address. Without a unique IP address on your machine, you will not be able to communicate with other devices, users, ...

Community driven content discussing all aspects of software development from DevOps to design patterns. When a developer tests web-based applications, it’s common practice to spoof your computer to ...

Although IPv6 adoption seems to be moving at a snail's pace, there's no outrunning it. Brien Posey demystifies some of the addressing issues many admins are still trying to figure out. [Editor’s note: ...