Configuring centos 6.3

[dna]

hey guys,

Im new here and a friend told me that I could learn about everything of linux so here I am.

I've followed this tutorial The Perfect Server - CentOS 6.3 x86_64 (Apache2, Courier, ISPConfig 3) but I get stuck on page 3.
when I'm trying to install mysql trough yum I get a couple times the message that it can't resolve host xxxxxx

First I though that it was my internet connection but its not. Ive tried the command "host google.com" followed by my dns address and I get a result

Can anyone help me out ?

[falko]

Can you ping the host that cannot be resolved?

What's in /etc/resolv.conf?

[dna]

Hey falko,

If i ping one of the host that can not be resolved I'm getting response.

And in /etc I dont have resolve.conf...

[falko]

It's resolv.conf, not resolve.conf.

Have you tried yum again? Maybe it was a temporary problem with one of the repo servers.

[dna]

Sorry, I mean resolv.conf..

I think its my network settings ( im working virtual ). Im gonna reinstall centos and try it again.

Another question: Im learning linux because I want to run a hosting company and online backup service. Do you have any tips/tutorials that I can use ? Is there any software available for linux wich can do online backup ?? Or is it better to use a windows os for the backup and linux for hosting (DA) ?

Thanks in advance..

Gr,