[RESOLVE] DNS out

Zitat von "jarod56"

I found the problem. No change in /etc/resolv.conf

Fine.
Would you be so kind and explain, how you solved the problem?
I have the same problem, and manually editing of resolv.conf did it for the moment, but that couldn't be the solution...

BR

Jan

Jan, did you setup your DNS server?

In web-gui

/system/network and then on the right the DNS Server TAB.

Put in your router ip address for Primary
Put in 8.8.8.8 of secondary address.

save and apply

@tekkbabe
Yes, i've set my DNS server (address of my router/gateway, that handles requests over to the real DNS of my ISP).

This problem follows other problems:

A few weeks ago i replaced my HP N40L with a N54L. Of course the new machines onboard-NIC has a different MAC-adress. So when i booted the new machine with the old disks, the system switched the name of the NIC from eth0 to eth1. That causes missing network-traffic graphs in systeminfo (at least i thought, that this was the reason). So i searched for solutions to change the networkinterface name back to eth0. I found the following method: in etc/udev/rules.d/70-persistent-net.rules i commented out the line that describes the former NIC (recognizable by its MAC), and changed the new NICs name in the next line from eth1 to eth0. After reboot and a new configuration with omv-firstaid in the cli and after login in the Weg-GUI i had my eth0 back and nearly all went fine; there were still sad smilies instead of network-graphs in system info.

Because i found out, that other (not all) graphs were also not renewed, i followed a suggestion of Volker that i found in another thread, and deleted the *.rrd files - with no success...

Later on, when i tried to install the support-info-plugin i found out, that my machine couldn't connect to the internet, because it couldn't find any DNS-Server for address resolution.

Any ideas, how to fix my two problems (DNS and not working rrd)?

BR

Jan

Delete the file /etc/udev/rules.d/70-persistent-net.rules completely and reboot your system.

Now you should automaticcaly have a fresh new eth0 device. Check if ifconfig is outputting it correctly.

Greetings
David

Zitat von "davidh2k"

Delete the file /etc/udev/rules.d/70-persistent-net.rules completely and reboot your system.

Now you should automaticcaly have a fresh new eth0 device. Check if ifconfig is outputting it correctly.

Greetings
David

I did it and ifconfig shows me eth0 and lo correctly - but no DNS: resolv.conf is empty again...

Trotzdem Danke...

Jan

Huh... what kind of router do you have? Maybe its no sending the DNS entry correctly while giving your OpenMediaVault an answer to its DHCP request.

Did you now check again if DNS is setup within the WebGUI for eth0?

Primary: IP of your Router
Secondary: 8.8.8.8

Greetings
David

Zitat von "davidh2k"

Huh... what kind of router do you have? Maybe its no sending the DNS entry correctly while giving your OpenMediaVault an answer to its DHCP request.

Did you now check again if DNS is setup within the WebGUI for eth0?

Primary: IP of your Router
Secondary: 8.8.8.8

Greetings
David

Alles anzeigen

I use a Fritzbox, and yes, i checked the DNS-entry in the Web-GUI: all fine...
The problem is deeper...

BR
Jan

Delete this file and reboot. A new file will be recreated. Don't mess with it.

70-persistent-net.rules

He has already done that.

jan, do you have dnsutils installed? Or can you still install it?

If so

apt-get install dnsutils
nslookup fritz.box

If not, whats the output of

cat /etc/hosts
cat /etc/resolve.conf

Greetings
David

No, he did not. He edited it. That is why I think he should delete it and reboot.

Zitat von "JanN"

I did it and ifconfig shows me eth0 and lo correctly - but no DNS: resolv.conf is empty again...

Trotzdem Danke...

Jan

Of course he did....

Greetings
David

Zitat von "JanN"

I found the following method: in etc/udev/rules.d/70-persistent-net.rules i commented out the line that describes the former NIC (recognizable by its MAC), and changed the new NICs name in the next line from eth1 to eth0. After reboot and a new configuration with omv-firstaid in the cli and after login in the Weg-GUI i had my eth0 back and nearly all went fine; there were still sad smilies instead of network-graphs in system info.

Ah, I looked at the another post.

Zitat von "davidh2k"

He has already done that.

You are really great men, always fighting for the truth :mrgreen:

Zitat von "davidh2k"

jan, do you have dnsutils installed? Or can you still install it?

Code

nslookup fritz.box

Yes, i can

root@JNSERVER2:~# nslookup fritz.box
Server:         192.168.151.1
Address:        192.168.151.1#53


Name:   fritz.box
Address: 192.168.151.1

What is this "'#53"?

And the others:

root@JNSERVER2:~# cat /etc/hosts
# This configuration file is auto-generated.
# WARNING: Do not edit this file, your changes will be lost.
127.0.0.1 localhost
127.0.1.1 JNSERVER2.local JNSERVER2


# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts


192.168.151.4 JNSERVER2.local JNSERVER2

root@JNSERVER2:~# cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
..#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN.
search fritz.box
nameserver 192.168.151.1

resolv.conf was the one i edited by hand and added the last two lines; without them there is no connection to the internet...

BR

Jan

Just thinking:

I changed the NIC-name from eth1 to eth0. But the former eth0 propably had another UUID, that perhaps is still stored anywhere in an important configuration file and so the new NIC could be bound to the old UUID and confuses the system.

What do you think about that?

Jan

Erm, to compare your data to mine (I have a fritz.box too)

root@chap:~# cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.1
search fritz.box
root@chap:~# cat /etc/hosts
# This configuration file is auto-generated.
# WARNING: Do not edit this file, your changes will be lost.
127.0.0.1 localhost
127.0.1.1 chap


# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts


 chap
192.168.178.11 chap
root@chap:~#

Greetings
David

davidh2k
In the meantime i found this this thread: http://forums.openmediavault.org/viewtopic.php?f=15&t=486

I followed Volkers suggestion and executed

dpkg-reconfigure --frontend=noninteractive resolvconf

and rebooted the system.

After that resolv.conf changed to

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.151.1
nameserver 8.8.8.8

That looks much better than before - and let your resolv.conf look wrong too...

Thanks and good night
Jan

Hmm... Works for me allright. :lol:

But nice that the problem is solved.

Greetings
David

Unfortunately it's not solved: after another reboot resolv.conf was empty again. Very very strange... :twisted:

Nun aber wirklich Schluß für heute...
Jan