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
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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 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!
Is there a way i can remove/disable the USB Host controller driver from the kernel, without kernel compilation..
If not, how should i go about recompiling the kernel to have this module disabled..
I am running Fedora 13 and after my machine is booted my ethernet interface eth0 does not have an IP address. Running
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At the terminal does not work, and I can see that in /var/log/messages I have the following error:
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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
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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'm running Apache with mod ssl, with a php app using ssl. https://www.example1.com
I've made a virtual host to host a simple static site which I dont want SSL for.
When I try and get to the site it redirects me to [url] which gives a certifcate error and shows the site from example 1.
Config below:
On my PC (fresh FC11 i386 instllataion from CDs), dhclient doesn't work. When it tries to get an IP address with dhclient, it gets No DHCPOFFERS reveived and fails. The ethernet of my PC works fine - I can manually set IP address, netmask, gateway etc. to connect to my persoal Linksys router, but if I change to DHCP, it fails as above. So it's not the problem of the ethernet driver of FC11. I suspect that dhclient of FC11 is buggy. (For the record, DHCP works fine on FC10 and Windows XP with my Linksys router.)
View 1 Replies View RelatedI am trying to install dhcp server on F12 with yum, but at the time I issue yum install dhcp, I got the following message:
Transaction Summary:
Install 1 Package(s)
Upgrade 0 Package(s)
Total size: 821 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Check Error:
file /usr/share/man/man5/dhcp-eval.5.gz from install of dhcp-12:4.1.1-5.fc12.i686 conflicts with file from package dhclient-12:4.1.0p1-17.fc12.i686
file /usr/share/man/man5/dhcp-options.5.gz from install of dhcp-12:4.1.1-5.fc12.i686 conflicts with file from package dhclient-12:4.1.0p1-17.fc12.i686
And I see that if I uninstall the dhclient package, I will lose my networkmanager, which I also need, is there a way to have a dhcp server as well as dhclient utility on fedora as it is possible on rhel?
Latest FC12 update included dhclient-4.1.1-9.fc12 which fails to configure eth0 after restarting the computer. Had to remove/downgrade to 4.1.0* (and reinstall dracut and NetworkManager(-glib)). There is no config file in /etc/dhcp/dhclient.d so I don't know how to reset dhcp/eth0 to connect. Thought some one smarter than me might have noticed this by now and worked out a solution. Can't tell that anything in Bugzilla sounds like my problem. Might only be x86_64 or KDE-4.4 problem as my 32-bit Gnome install is not affected. Easy enough to grab the rpms, just annoying. Still haven't learned how to keep a package at version x.x with Fedora yet but that's another topic.
View 3 Replies View RelatedI 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)
Am a quite naive user of linux. I would like to know whether there is a way in which I can remove/disable the USB Host controller driver from the kernel, without kernel compilation..Am using a custom system which has linux in it (Fedora) If not, how should i go about recompiling the kernel to have this module disabled.
View 1 Replies View RelatedHost - Fedora 12 64bit
KVM
VM - Windows Server 2008 64 bit
bridge-utils
VM can ping host and Internet but host can't ping VM.
I set VM static IP 192.168.0.205.
It turns out dynamic IP - 192.168.0.55
On host:
While 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 RelatedMy 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?
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 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]....
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 looked into the handbook,googled for it,but found no working solution to this "problem". Everytime I use Opensuse I must su and then type dhclient,how can I make sure my connection will be up as soon as I log in?
View 7 Replies View RelatedFor 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 Replies View RelatedI 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 RelatedHow the dhclient retry working(Background Process).
View 3 Replies View RelatedI 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 the following system
# cat /etc/redhat-release
CentOS release 5.5 (Final)
# uname -r
2.6.18-194.32.1.el5
My laptop only has a 100Mbit ethernet port, so I bought two external USB gigabit ethernet dongles in the hope of getting faster ethernet speeds. I have never had trouble with Linux supporting ethernet before, but neither of these devices are working. One is an ASIX AX88179 (by TrendNet) and the other is a Realtek RT8153 (by Anker). When I plug these devices in, I get network devices called enx00e04ca82300 or enxd8eb97b61e4d (instead of eth0/eth1 as I would expect).
I can manually set an IP address with "ifconfig enx00e04ca82300 x.x.x.x up" and manually add a route and my network connection works at gigabit speeds. However, the long enx... network device name does not appear to be valid in some sense: tools like dhclient or iptraf or network-manager fail with messages like "no such device" (well, network-manager just hangs). I don't know if it's because the name is so long or because they are not fully registered inside the kernel.
I have vmware workstation installed, and it does some strange things with network devices (setting up bridges for everything). I have disabled its services and see the same behaviour. This looks like a kernel bug to me but it's possible it is a vmware issue. vmware works fine with my wireless and 100Mbit ethernet (eth0 and wlan0).
Realtek device
Some dmesg for the Realtek device:
Code: Select all[10264.619420] usb 4-3.1.1: reset SuperSpeed USB device number 4 using xhci_hcd
[10264.634651] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c4221a00
[10264.634653] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c4221a48
[10264.634655] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c4221a90
[10264.647842] r8152 4-3.1.1:1.0 eth0: v1.06.0 (2014/03/03)
[10264.647902] usbcore: registered new interface driver r8152
[10271.452198] IPv6: ADDRCONF(NETDEV_UP): enx00e04ca82300: link is not ready
[10275.094334] IPv6: ADDRCONF(NETDEV_CHANGE): enx00e04ca82300: link becomes ready
The Realtek device often crashes after just a few gigabytes have been transferred, with dmesg like this:
Code: Select all[10485.761603] net_ratelimit: 10 callbacks suppressed
[10485.761618] r8152 4-3.1.1:1.0 enx00e04ca82300: Tx status -71
[10488.694340] r8152 4-3.1.1:1.0 enx00e04ca82300: Tx status -71
[10488.711352] r8152 4-3.1.1:1.0 enx00e04ca82300: Tx status -71
[code]...
I have not investigated the ASIX device as much. However, my original 100Mbit ethernet has an ASIX chipset (AX88772) and that works perfectly. I have not observed the ASIX device crashing yet so I am using that for now (haven't used it for long yet though). But as before the device name appears to be invalid and I cannot run tools like dhclient. why two gigabit adapters with completely different chipsets would show up with long device names and support low-level stuff like ARP, ping, and static IPs, but fail with dhclient & network-manager? And the Realtek device seems to like crashing too.
I was trying to connect to wireless via cmd:
* ifconfig wlan0 up
* iwconfig wlan0 essid 'XXX'
* iwconfig wlan0 key XXXXXXX
* dhclient wlan0 -> here i get error:
ls: cannot access /var/run/netconfig//wlan0/: no such file or directory
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?
I'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: