Tagged Questions

0
votes
0answers
16 views

Wired network works in live CD but not after installation

Live CD and installation have working network connection. But after installing, the network connection is offline; it won't connect! No automatic configuration, aka DHCP doesn't work. Static ...
0
votes
0answers
71 views

Local DNS resolver + dnsmasq in Ubuntu 12.04?

I need a local DNS resolver because my ISP DNS is seriously broken and breaks, in turn, many networks scripts. Before Precise I could just install unbound and add 127.0.0.1 as a prepended name server ...
1
vote
0answers
34 views

DHCP 'hotplugging' or failover

When some PCs are connected via a simple switch, that is also connected to an DHCP router, is it possible to have them autoconfiguring their IP adresses, if the DHCP is absent, but DHCP-configured, as ...
0
votes
2answers
1k views

Have to run sudo dhclient eth0 automatically every boot

I just installed ubuntu 12.04.1 alternative install (for raid 0 on some disks). I Have some problems with the net. I'm at school, we use cable, and it got IPv6. If I run ifconfig eth0 heres my ...
0
votes
0answers
83 views

Is there a way to specify per connection dhcp host-names to be sent in a dhcp request using NetworkManager?

I want to send to different networks dhcp servers different hostnames. Can this easily be done? This should be able to be achieved by NM writing a specified hostname to the merge dhclient config ...
2
votes
2answers
196 views

Cannot connet to password protected wifis

Network manager cannot connect to a wifi, if the wifi is password protected (WEP or WPA). However it can connect to passwordless wifis. Also, I can conned to password protected wifis manually as: ...
1
vote
2answers
4k views

How does dhclient get called under 12.04

In my 12.04 Precise install, when I boot the system, or when I plug in an ethernet cable, dhclient isn't run automatically on my wired eth0 connection. I have no running dhclient daemon. When I run ...
2
votes
2answers
2k views

How to make dhclient forget its last DHCP lease?

What I'm trying to achieve is to get cold-start, zero-state DHCP lease which means forcing dhclient through the full discovery and configuration process (DHCPDISCOVER–DHCPOFFER–DHCPREQUEST–DHCPACK as ...
0
votes
2answers
531 views

why do none of my local servers resolve

When I try to ping or browse using a web browser certain domains names that we host on our local network, it does not work. Yet dig, nslookup correctly return their details. What do I need to do to ...
0
votes
1answer
552 views

Lost wifi connection since i connected ethernet cable

I've had trouble at my office using wifi. The thing is, the wifi network is totally seperate from the office LAN, and i've got to be on wifi if i want to use protocols like ssh or git. I configured ...
1
vote
1answer
228 views

how to switch from automatic dhcp to manual setting of the wireless network

When waking up from sleeping my netbook (ubuntu 11.04) is very fast (less than 10 secs). However most of the time building up the wlan connection takes 30 secs. Somewhere I read, that setting your ...
2
votes
1answer
452 views

Domain name isn't assigned from DHCP when booting from Live CD

I downloaded the ubuntu 10.10 ISO image for AMD64. When i start the ISO ubuntu gets an IP address from my DHCP server. NetworkManager updates /etc/resolv.conf according to the DNS config provided by ...