Tagged Questions

2
votes
3answers
40 views

Can DNS identify hostnames dynamically if they're statically configured?

I've got a small environment of ~40 VMs with static IPs on 12 servers, it would be dandy if I could refer to each VM by name. We have a lot of VMs come and go, so maintaining one static list is a ...
1
vote
0answers
557 views

centos 6, hostname won't resolve, dns issue, loop detected

I've searched everywhere and tried all the suggestions that I've seen, but I just can't get this to work now (it was working before). This is the first time I've ever installed a test server that I ...
6
votes
1answer
222 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 ...
2
votes
2answers
132 views

How is my domainname determined?

If I look into /etc/hostname/ I can see the hostname of my device. This is however not the name that shows up when I use nslookup on our network. How do I tell the DNS server which name it should use? ...
2
votes
1answer
261 views

Short domain name to FQDN expansion

Is it possible to configure where the system will look for the machine if I enter just a short domain name? I work in a grid environment where the machines are many and spread across multiple ...
1
vote
2answers
2k 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 ...