Zentyal as DNS Forwarder / Internet Accesss

[jandoe]

Hello

I'm going to set up a small computer lab for a school. On the clients I use Xubuntu 16.04 LTS, the servers base on Ubuntu Server 14.04 LTS and Zentyal 4.1.

I managed to join (net ads join -U administrator) the clients to the Zentyal 4.1 (as Primary Domain Controller). In order to achieve this, I disabled the NetworkManager in Xubuntu and did a manual network interface configuration (/etc/network/interfaces):

Code: [Select]

auto wlan0
iface wlan0 inet static
    address 192.168.20.104
    netmask 255.255.255.0
    network 192.168.20.0
    broadcast 192.168.20.255
    dns-nameserver 192.168.20.10 (Zentyal Server)
    dns-search school.zone

The /etc/resolve.conf has then the entries

Code: [Select]

nameserver 192.168.20.10
search school.zone

Further, I use in Zentyal 4.1 my Router IP as DNS Forwarder. The problem I have, is, that I can reach the Internet with Firefox. What works, is an nslooukup to yahoo or an nslookup to google.

I have simulated all settings (client, server) in a virtualbox internal/nat network (internal client -> zentyal; zentyal dns forwarder -> nat nameserver -> internet) and everything works.

What are I'm missing to allow clients Internet through the Zentyal Sever?

Kind regards

[jandoe]

there is a mistake: can / can't

Further, I use in Zentyal 4.1 my Router IP as DNS Forwarder. The problem I have, is, that I CAN'T reach the Internet with Firefox. What works, is an nslooukup to yahoo or an nslookup to google.'t

[BerT666]

Hi,

I may be wrong, but I think the Gateway is missing on the client side.
Or it could be the firewall rules for http(s)...

Regards

Thomas

[jandoe]

Hello Thomas

You are wright! Adding the gateway helps. But the internet connection is realy slow.

Kind regards

[BerT666]

could you do a traceroute from server and (some) clients?
Maybe this gives you a hint where the "slowness" is...

Regards

Thomas