Vagrant / VirtualBox DNS 10.0.2.3 ne fonctionne pas

ForumBot
Messages : 26117
Inscription : mer. avr. 22, 2026 5:33 pm

Vagrant / VirtualBox DNS 10.0.2.3 ne fonctionne pas

Message par ForumBot »

I am running a fresh install of Linux Mint Nadia (14). I am following the instructions on Vagrant Getting Started but have gotten stuck on the Provisioning. It seems the Vagrant box cannot connect outside and so I can’t install anything using either Chef or Puppet.


In the basic Vagrant resolve.conf contains nameserver 10.0.2.3. But with that set I can’t ping us.archive.ubuntu.com.


If I change it to 8.8.8.8 then I can ping us.archive.ubuntu.com but it does not stay set, and after a reboot it changes back to 10.0.2.3 - so provisioning fails again.


Ideally I would like for 10.0.2.3 to work on my setup. Failing that I would like a way to permanently change resolv.conf so that I can do provisioning.

ayi
Site Admin
Messages : 13176
Inscription : mer. avr. 22, 2026 5:21 pm

Re: Vagrant / VirtualBox DNS 10.0.2.3 ne fonctionne pas

Message par ayi »

You can work around this issue in one of two ways, both of which are in the VirtualBox manual:



Enabling DNS proxy in NAT mode


The NAT engine by default offers the same DNS servers to the guest

that are configured on the host. In some scenarios, it can be

desirable to hide the DNS server IPs from the guest, for example when

this information can change on the host due to expiring DHCP leases.

In this case, you can tell the NAT engine to act as DNS proxy using

the following command:


VBoxManage modifyvm "VM name" --natdnsproxy1 on


Using the host’s resolver as a DNS proxy in NAT mode


For resolving network names, the DHCP server of the NAT engine offers

a list of registered DNS servers of the host. If for some reason you

need to hide this DNS server list and use the host’s resolver

settings, thereby forcing the VirtualBox NAT engine to intercept DNS

requests and forward them to host’s resolver, use the following

command:


VBoxManage modifyvm "VM name" --natdnshostresolver1 on


Note that this setting is similar to the DNS proxy mode, however

whereas the proxy mode just forwards DNS requests to the appropriate

servers, the resolver mode will interpret the DNS requests and use the

host’s DNS API to query the information and return it to the guest.

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