Virtualmin into a VM (proxmox), what hostname should I put ?

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#1 Sat, 09/19/2015 - 13:28
frenchie

Virtualmin into a VM (proxmox), what hostname should I put ?

Hey guys !

First post here, I hope i'm doing everything in the rules, if not, just let me know.

I just got a powerful dedicated server in order to merge 2 dedicated that i was using. One was for a windows VM and the other was hosting my sites under Centos+ a mod of Virtualmin distributed by OVH. I installed Proxmox in order to create 2 Vm in this dedicated. The windows part was quite easy.

Now here I am, my host has a dedicated IP and I connect to the proxmox panel either by its IP AA.AA.AA.AA:8006 or by an address given by OVH NSXXXX.IP-XX-XX-XX.NET:8006.

I created a VM and installed CentOS on it. I linked an IP FO BB.BB.BB.BB to it by assigning this VM a virtual mac address linked to this IP. The gateway to connect to internet is AA.AA.AA.254 and the mask is 255.255.255.255. With that configuration, CentOS is connected to internet and I can yum update and install package as I want.

Now here comes the problem (or rather should I say my lack of knowledge): The hostname in this machine is local.localhost . I have no idea what to change it to in order to install Virtualmin and make it run like a proper server. I also have no idea if I should change the hostname with --static or not. I dont really get that point. I looked over the internet for a while and it seems that I should input somehting like ns1.oneofmydomain.com . But I don't understand how to reroute this domain so that it can actually access the server.

After all that, will come the problem of the nameserver. NSXXXX.IP-XX-XX-XX.NET will obvisouly not work because the host(proxmox) doesnt have BIND DNS installed right ? So i'm 100% lost. Hostname and nameserver are usually somehting I don't get a headache on when I'm not in a VM but this time I just don't get how the whole schema works.

I hope you guys can clarify things for me and help me in the process to set those servers up.

Thanks.

Mon, 09/21/2015 - 10:40
andreychek

Howdy,

You can make up whatever hostname you want, so long as you own the domain in question.

We usually suggest a hostname such as name.domain.tld.

As long as you own "domain.tld", "name" can be anything you want.

Though, after installing Virtualmin, you would want to create a DNS 'A' record for 'name.domain.tld'.

As for nameservers, there is some documentation here that may get you started -- though note that you'd do all this after performing the Virtualmin install:

https://www.virtualmin.com/documentation/dns/faq#How_do_I_setup_nameserv...

Thu, 09/24/2015 - 08:13
frenchie

Thanks

Consider the fact that I own server.com and my webmin address being web.server.com.

Now i want to set up webmin as a name server.

can I use ns1.server.com too ?

I've read lots of stuff online about setting up nameservers with BIND DNS but this SOA, slave/master story is driving me crazy.

I would like to have clear ressources to learn about this stuff with practical example but I cant find any oriented webmin users.

Thu, 09/24/2015 - 10:49
andreychek

Howdy,

There is some information here on how to setup a nameserver -- this should get you started on how to do that:

https://www.virtualmin.com/documentation/dns/faq#How_do_I_setup_nameserv...

Fri, 09/25/2015 - 06:03
frenchie

Well i've read this over and over (as you previously posted it already), but I still have pingdom errors.

I'll try to be as precise as I can in detailling my setup, but don't hesitate to tell me if I'm missing something.

I have a server under Centos7 as previously said. I'm using Virtualmin to handle the configuration of my site, Webmin for the server.

My server has IP AA.AA.AA.AA and I have 10 IP failover (We'll call them for this scenario BB.BB.BB.BB to KK.KK.KK.KK).

I own the domain SERVER.COM, and I updated my DNS records to point it @ AA.AA.AA.AA (I'm at Godaddy) I also created 2 glue records at godaddy, to declare my domain as nameserver: NS1.SERVER.COM -> AA.AA.AA.AA & NS2.SERVET.COM -> BB.BB.BB.BB

I connect to my virtualmin via WEB.SERVER.COM:10000 (I added a A records in godaddy for WEB to point to AA.AA.AA.AA)

In VirtualMin>System Setting>Server Templates>Default my Master DNS zone is set at ns1.server.com (should I change it? if yes, will it update all the records already created? where do I put ns2.server.com )

Under the DNS records of MYDOMAIN2.COM I have the SOA set to WEB.SERVER.COM ROOT.WEB.SERVER.COM < I can't change it and i'm confused because I have no idea of what is it.

Now for the problem part: I have red alerts in Pingdom when I check DNS records for MYDOMAIN2.com that is set with NS1.SERVER.COM and NS2.SERVER.COM.

Since I can't post image yet it seems, here's the link to the error in question : http://i.imgur.com/Lldtfri.jpg

So basically, I feel like it's all wrong. If anyone could tell me what should I check/change that would be amazing. I've been reading about DNS for the last 8 hours and I feel more confused than ever.

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