For test purposes I'm running Ubuntu 10.10 from a USB stick with a USB WLAN stick.The system finds the WLAN router and acquires an IP6 address, but no IP4 address.With "dhclient wlan0" though it does get an IP4 address and connects o.k.How do I setup the system so that this dhclient call is done by the system at startup (or whenever it is necessary)?
View 1 RepliesI recently upgraded to a Intel i3 cpu and Intel H55 motherboard. This was from an old P4 machine that was running Slackware 13.0. The machine is a single connection to the internet through a cable modem. I moved the hard drives over, and found that dhcpcd would not work with this board in either Slackware 13.0 or 13.1 (after updating). I tried both the Gigabit onboard Lan, an old PCI ethernet card and installing the most recent version of dhcpcd. No luck. Dhcpcd would negotiate the lease with my cable modem, assign an IP address. But after that the process stalled. The internet was unreachable, and no nameservers were printed in /etc/resolv.conf. Manually killing dhcpcd and entering: "dhclient -4 eth0" got me on the internet without a problem. As this appears to be a lingering problem with dhcpcd, I am going to try to use dhclient permanently. Has anyone else moved over to using dhclient? If you have modified your startup scripts in /etc/rc.d to use dhclient.
View 3 Replies View RelatedI have a footpedal and fortunately there is a software for using it under linux (see [URL]). The author of that software already solved an issue for me (see issues there), but there is no option to ask simpler questions.
Unfortunately prior to use the software I have to change the device permission each time I start linux. How could I change that to be done automatically at startup?
Had a problem getting my internet connection working with Ubuntu, but I resolved that issue. Problem is I still have to manually run dhclient every time Ubuntu boots, because I have no network unless I do. Is there a script or something that can do this automatically?
View 1 Replies View RelatedWhile i am configuring network setting on backtrack4. i was running my backtrack on vmware workstation and NAT is bridged to physical mem like it was said on the tutorial that watched. i typed ifconfig eth0 up, and hit enter, as well as dhclient eth0 up, but resulted in different output. it says "no such device" is written and i would like to configre this problem.
View 2 Replies View RelatedI'm running Ubuntu 10.04.2 LTS and from time to time eth0 connection is lost.
Looking at syslog (below), if its a hardware (network card) problem or a software bug?
syslog file:
I am running Fedora 13 and after my machine is booted my ethernet interface eth0 does not have an IP address. Running
Code:
At the terminal does not work, and I can see that in /var/log/messages I have the following error:
Code:
I assume that the same command was attempted during the boot process (please correct me if I am wrong) to use DHCP to get an address for eth0, but failed for the same reason it is failing after boot when I run it manually, whatever that reason may be.
I noted, however, that eth0 IS in broadcast mode:
Code:
I also noted that running
Code:
Does in fact work and will run DHCP and configure eth0 with an ip address.
It is quite mysterious to me why running 'dhclient eth0' will work, but manually running 'dhclient' does not.
I am seeing the following error on a linux client..
daemon.info dhclient: No working leases in persistent database - sleeping
is this a problem within the client or related to interaction with DHCP server?
I got a full system crash each time I try to do anything with network. Been fighting with this problem for weeks now. What I did: -tried every driver for broadcom4312 and it turned out that it even crashes with cable net
-got rid of networkmanager
(
Mar 11 08:01:43 geburah NetworkManager: <info> Activation (eth1) successful, device activated.
Mar 11 08:01:43 geburah NetworkManager: <info> Activation (eth1) Stage 5 of 5 (IP Configure Commit) complete.
)
used:
ifconfig eth1 up
[Code]...
Code:
Commands as root works well when normal user is logged in and connected to net via KDE 4 network manager, but after logoff network is gone. And it is impossible to get it back because command mentioned above stops working!
I have just installled fedora, and I am puzzled by dhclient-script. Because it gives the router ip as nameserver 192.168.0.1. I have had other linux distro on same machine that resolves the correct nameserver without any configuring.
Does anyone know how to get your ISP:s nameservers instead in /etc/resolv.conf when running dhclient from CLI? I have thought about edit /sbin/dhclient-script. But if that is the case. Which option should I edit?
Quote:
My system
OS=Fedora 15
Kernel=Linux fedora_15 2.6.38.8-32.fc15.i686.PAE #1 SMP Mon Jun 13 19:55:27 UTC 2011 i686 i686 i386 GNU/Linux
Router =DLINK dir 100 (IP 192.168.0.1)
I have a simple server running Ubuntu Server. Usually the server connects to the network by Wifi, so there is usually no cable connected to the Ethernet port. I noticed that there is a dhclient3 running on eth0 anyway. It is causing undesirable disk activity. Obviously, it is never going to get a response as long as no cable is connected. I can kill the responsible process manually, but I wonder first what is starting the process and how I can prevent it from being started. If there is a way to get the server to boot without starting this process, I wonder whether this is the right solution. Connecting to the network by Ethernet is the failsafe when Wifi doesn't work. I guess what I would like to see would be a way for the server to detect when eth0 does not have a cable connected and not start dhclient in that case, but to activate dhclient when a cable is connected.
View 4 Replies View Relatedi've configured the machine to use a static ip yet dhclient still runs and obtains an ip. what needs to be done to stop this? it has to be something i can put in a script since i have written a setup script to run on several machines. this setup script creates/modifies several files with a few key ones shown below:
/etc/sysconfig/network
Quote:
HOSTNAME=csec7154
NETWORKING=yes
NISDOMAIN=csma
NTPSERVERARGS=iburst
[code]....
and the files, hosts, resolv.conf, network and ifcfg-eth0 in the /etc/sysconfig/networking/profiles/default directory all link to their respective files as does /etc/sysconfig/networking/devices/ifcfg-eth0. thanx!
I have the following system
# cat /etc/redhat-release
CentOS release 5.5 (Final)
# uname -r
2.6.18-194.32.1.el5
I manage to get Ethernet over Firewire working between my Windows XP desktop and my Ubuntu 10.10 laptop.However, I am getting tired of having to manually issue the ifconfig command every time.How can I automate it so that the command is done at bootup?
View 1 Replies View RelatedI have a dynamic Internet connection. My eth0 is configured to DHCP client. I need to rum one personalized command all time the dhclient renew the lease. I have a program that update the /etc/hosts with the new IP and I need to run this command when dhclient receive one lease update.
View 1 Replies View Relatedhow could i automate the audit of computer's hardwares present in network?
View 1 Replies View RelatedI'm trying to automate the transfer and processing of files between two systems to help test and compare a new server installation. The workflow is a bit complex but I'm basically modifying a script on server 'A' to push a file to server 'B' as standard input to another script.
[Code]...
But no luck. I've tried it without the port in the server_args parameter, without the '-l' option; I've tried having the server parameter set to 'tcpd' and the call to '/bin/nc' in the server_args too. But no success. Can anyone point out what I'm doing wrong with the config? PS. I've restarted xinetd and server B is listening on port 1112 and accepting connections - but nothing gets piped into the script on server B.
I need to know how to configure automate sending sms if server reboot and shutdown? Now i just set sms notification once my server it's UP by create scripts in /etc/rc.d/rc.local while booting then from server sending sms notification. SMS - using gnokii attached mobibe phone. Server - Fedora 10
View 3 Replies View RelatedIn practice I have a script that call a java program that call a linux system command. The script if I run it, from a shell functions well,so it is not a java problem. The problem come out when i put this script in a crontab schedulation. The result in this case is that java do not execute the system command. I think it depends on crontab
View 4 Replies View RelatedI have a script that I would like to run when my laptops connects to a new network (e.g. changes to another SSID). I've done some searching on the net but could not find any suitable solution (but I bet there is).
View 6 Replies View RelatedI am complete new to the technical side of VOIP. I know above diagram is not technically correct. I want a setup that works like that and oh the cheaper yet not compromising the better, even ekiga or skype can do that.
View 3 Replies View RelatedI need to receive a number of raw ethernet packets (say, 100 packets) into a user-mode accessible buffer large enough to hold all the packets. The way I have done this so far is by looping over the recvfrom() system call 100 times, passing an incremented pointer addressing the location in my buffer to store the packet. Is there a way to receive the 100 packets into my buffer with one system call, perhaps by instructing the kernel to DMA the 100 packets into my buffer?
View 1 Replies View RelatedI apologize if there's a solution to this somewhere on the forum, but I searched around on google for several hours before posting this, so I assure you, I'm not trying to waste your time.Here's the deal. I have a file/print server running wpa_supplicant on interface wlan0 via ndiswrapper. Its wireless because the location I need the printer in is really inconvenient to have to run wires to, or I wouldn't have this problem.The box is running ubuntu server 10.10, with only ndiswrapper and the associated utils and wpa_supplicant installed in addition to the default packages required for file/print/web serving. (there may be a few trivial packages like Vim that should have no effect whatsoever.)Basically, wpa_supplicant associates fine with the AP, but I can't get any elegant way of getting a IP address with it, DHCP or static makes no difference. My current fix is my rc.local file has:
Code:
sleep 60
dhclient wlan0
[code]....
How to disable dhclient on redhat host.
I have set static IP to one of my redhat host but I don't know how it changes to some other IP after few hours.
Here is the output from ifcfg-eth0 and rc.local
Code:
If I plug my iPhone into my laptop via USB cable, the phone gets mounted but no tethering connection is automatically made.I can manually configure ubuntu to tether with my iphone to use it's internet connection like this:
Code:
sudo ifconfig wwan0 up
sudo dhclient
Does anyone know how to make internet connection tethering happen automatically?
My network configuration is in a weird situation, that I always need to run dhclient manually each time after a network connection is established. When my computer connects to a router, sometimes it won't get a valid IP, and it uses an automatically generated fake Internet IP. In this situation, it won't connect to the Internet at all. Sometimes it get a valid local network IP, but still cannot connect to WAN, and could only connect to my router's address (both through ping and through router's management webpage). In both situation, it can be solved by a simple dhclient run.
This is my /etc/network/interfaces file:
Code: Select all# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
iface wlan0 inet dhcp
and this is my /etc/NetworkManager/NetworkManager.conf:
Code: Select all[main]
plugins=ifupdown,keyfile
dhcp=dhclient
#no-auto-default=FE:50:52:BE:46:4C,
I'm setting up virtual dev environments and I want the hostname.domain to be something specific, eg- "barney.local". However my /etc/resolv.conf file keeps getting nuked because i'm using DHCP. I placed this into my dhclient.conf:
supersede domain-name "localhost"
supersede host-name "barney"
but it didn't help. I'm not sure where I'm going wrong. How can I still use DHCP but configure that virtual environment to see itself as barney.local?
I used ssh to log into my sever that I had and I from there I ran the command dhclient eth by mistake on the server but the serve had an static IP address. Unfortunately I can't ssh back into the server anymore! It replies back with No route not host. Now my questions are. First of all how do I change it back into the previous setting? Secondly, can I do this remotely since the server is in another place and I don't have access to it right now or do I have to go there and sit behind it and play around with it there?
View 4 Replies View RelatedRunning 10.04. For some reason, starting today, I have no internet connection unless I run this command in terminal - sudo dhclient eth0. I have a hard wired ethernet connection on a Desktop PC with a static IP address (there are a number of devices in the house) and it has been running 100% for months and months. Why suddenly do I have to enter this command to get connection? When I switch on I get a connection in that when I click on the Top Panel icon and right click Connection Information it tells me I have an active connection to my router on the normal IP address. I cannot ping the router and Firefox says Server not found. After sudo dhclient eth0 everything works - what has happened since yesterday evening and this morning to stop what has been 100% for months?
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