6
votes
1answer
317 views

Why the difference between network addresses reported by hostname and ping?

I have tried hostname and ping in a cluster machine, with different outputs. I am wondering what is the difference between the two? For example, on the same machine, hostname outputs node4.XXX and ...
5
votes
3answers
8k views

How does traceroute resolve names?

While writing a script, I wanted to reference a machine by the computer name that I gave it (e.g. "selenium-rc"). I could not ping it using "selenium-rc", so I tried the following commands to see if ...
1
vote
2answers
3k views

What is a valid hostname label?

I set up my hostname to a number, where running hostname gives: 6592 But when I run ping 6592, I get: connect: Invalid argument I checked the related Wikipedia page, and it does say that such a ...