0
votes
0answers
30 views

DHCP running at startup

In order for my WiFi at work to work I had to use wpa_supplicant, as the Network Manager just would not connect. Manually I use two commands: sudo wpa_supplicant -B -i wlan0 -c ...
-1
votes
1answer
93 views

override dns nameserver

i wish to set higher priority for my dns nameservers, or override the ones that are being set by the dhcp server. no matter which approach i took, nslookup never displays the right dns nameserver. ...
0
votes
1answer
122 views

Intermittent wired network issues in 14.04

Since yesterday, my wired network connection has been dropping for a couple of seconds every 30 seconds or so. To my knowledge, I had not made any changes to my network. Output of ifconfig -a: ➜ ~ ...
2
votes
2answers
288 views

DHCP and static IP address simultaneously in ubuntu

We can use multiple IP address for a single interface in linux(eth0:0, eth0:1). But can we use dhcp and static IP in the same time?? eth0:1 should have a static IP address and eth0:0 will be configure ...
3
votes
1answer
15k views

Cannot connect to wireless in Lubuntu 14.04

I have tried all afternoon to fix this, but now I give up. I am trying to set up an old XP PC with Lubuntu 14.04. It works perfectly fine, except for the wireless connection. Connecting with ethernet ...
0
votes
0answers
60 views

Relinux - “waiting for network configuration” problem

I installed Ubuntu 12.04 base system via the "minimal ubuntu" ISO. I make a script to get hostname from dhcp server as explained here. It works perfect. I don't install network manager because I ...
2
votes
1answer
330 views

How to get host-name from DHCP server via Network Manager?

I can get hostname and ip address from DHCP server with invoking the script under /etc/dhcp/dhclient-exit-hooks.d/ directory as explained here on client side . EDITED: I assigned host-name and ip ...
2
votes
1answer
313 views

Wired network does not work in Ubuntu, but works in Windows 7

Updated: I have pasted full output of bash command in Ubuntu into here, including ifconfig, ping, nm-tool, modinfo and dmesg | grep e100. Hi all, I can surf internet in Windows 7, just pluging in ...
3
votes
1answer
513 views

Can't resolve windows domains in local network

I've installed ubuntu on my computer at work because I think it is a perfect system for work which I do but I got some issues. I can't resolve domains from windows DNS server. Basically, we have two ...
0
votes
0answers
54 views

Cannot connect to the network anymore using DHCP

It's an apartment house's network and the connection worked fine for two days until yesterday. Problems are same plugging in directly with network cable or using a switch. If I boot with windows, ...
1
vote
2answers
169 views

Sharing Internet Connection (DHCP) through a Wireless Hotspot

I have an internet connection through a cable modem. The IP address on the cable modem is not static and is perhaps obtained through a DHCP mode. I wish to share this internet connection through ...
0
votes
0answers
26 views

How to edit resovle.conf on my own?

I am doing all the networking manually. For example, if I want to connect to a network using DHCP I change the dhclient script file then I read my script then add the ip's using IP command. It all ...
0
votes
0answers
35 views

ibaton router light goes off when lan wire put it on.no internet on wired but there is internet in wireless

i have installed ubuntu 12.04 server LTS. and installed xubuntu desktop. on pentium 4. 512 mb ram.and my router is i baton frm bsnl internet.my prob is when i start the desktop pc the lan wire ...
0
votes
0answers
42 views

GSM does not work: DHCP instead of PPP?

I built an Erricson GSM device into my ThinkPad and am trying to get it work on Ubuntu. The GSM network is functional with Windows, so the hardware is working and and APN and credentials are correct. ...
0
votes
0answers
68 views

What should be the proper dhcp configuration for creating a ntwork over eth0?

Even not under a real server like scenario, I'm testing with dhcpd for learning and practice purposes. I'm using Ubuntu 12.04 LTS. I want to offer a network by my eth0 interface. I receive ip and so ...
0
votes
1answer
1k views

wicd Failed: Unable to get IP address

I have an old laptop (Thinkpad T30) and I have installed lubuntu 10.04 on it. NetworkManager could see the available wifi but the bottom was gray out. It seems that it is an unsolved-bug in wifi and ...
2
votes
2answers
384 views

Why is my network broken, although my computer has an IP address, and firewall disabled? [closed]

Short summary (added after the problem was solved) Apparently some wireless USB network adapter drivers were incompatible with my Linux OS, and in the end I worked around the problem by buying a ...
0
votes
0answers
237 views

Cannot get down interaface with ifdown

In /etc/network/interfaces I have defined two interfaces: lo and wlan0. When I run ifconfig I get three interfaces: lo, wlan0, wlan0:0. When I run ifconfig -a I get five interfaces: eth0, eth0:0, ...
1
vote
0answers
193 views

Running openvpn with dhclient without messing up name resolution

I connect to an Openvpn server that requires me to set up the tap interface with dhclient after establishing the connection. I run and exit dhclient like this: /sbin/dhclient -nw -v tap0 ...
0
votes
1answer
215 views

Ubuntu 13.04: Ethernet works at office but not at home. DHCP issue maybe?

I am fairly new to Linux and just installed Ubuntu 13.04 on an external USB HD (using the liveCD). The computer the drive is connected to is a Dell Precision M4500 (laptop). After the fresh install, ...
0
votes
1answer
397 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 ...
1
vote
0answers
102 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 ...
1
vote
3answers
5k 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 ...
3
votes
2answers
349 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: ...
2
votes
3answers
10k 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 ...
5
votes
4answers
13k 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
1k 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
695 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
300 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
760 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 ...