I have a windows and a linux box running DHCP respectively. The problem is whenever my client system boots up, it fetches the dynamic IP from the windows box. What should I do in order for my Linux box to provide dynamic IP's to clients? Both servers are in a single network. connected via switch.
View 1 RepliesI have a strange problem for internet. My clients (winxp - S2) can't get internet.Let me explain my scenerios. Fedora 10 with lan (eth0) having direct internet from dsl model, client (XP service pack 2) can use samba shares using dhcp (wlan0) installed in Fedora 10 box. client can ping my linux box.Now problem is: client (dosbox) can ping the google ip address (i.e ping 74.125.39.106) but can't use 'ping www.google.com'. That means ping with ip works for internet from my client. My linux box can. I can use internet from FC10 but can't use iexplorer from my client to have internet. I have enable ipmasquarding in Firewall and dhcpd is running on wlan0 for dynamic ip address of my clients.Can someone suggest me what kind of problem having I? What should i do to success iexplorer for internet? what possibly am i missing?
View 3 Replies View RelatedIs there anyway how to view the dhcp clients over dnsmasq?
View 1 Replies View RelatedI use a t-mobile usb mobile broadband stick; model usb stick 120.
the signal strength is 3g yet i randomly get disconnected from the likes of
pidgin
amsn messenger
ebuddy
can anyone tell me why, or how to fix it
I've a fully working openvpn network but it works only using ip address.Clients should comunicate each other thought the server. To semplify the managment of clients I'd like to use their hostname instead their ip. there are a way to achieve it?Now openvpn assign ip address to the clients, but if is needed I can install other software on the server, it's a Debian machine.
View 4 Replies View RelatedI have a network consisting mostly of Windows Vista and 7 clients and an Ubuntu server. The server provides both the DHCP and NTP services through dhcp3-server and openntpd. In my dhcpd.conf, the subnet is declared as follows:
subnet 10.10.10.0 netmask 255.255.255.0 {
range 10.10.10.10 10.10.10.200;
option broadcast-address 10.10.10.255;
option routers 10.10.10.1;
option ntp-servers 10.10.10.1;
The clients don't seem to be using the NTP server though. When I capture the network traffic with Wireshark during the DHCP process, I also see no mention of the NTP option in the DHCP offer message. I am not quite sure if the clients would have to specifically request that option to receive it or if I have to make another configuration to offer the option.
alright so i set up dhcp server and my clients are getting ip's, can ping each other, and can ping/ssh the server. but nowhere beyond that.
however if i ping an externel site, i get its IP addr, but no pings (100% loss)
im ripping my hair out over this. i know that iptables is right, but i dont know about dns
idk if this helps:
Code:
pavel@ubuntu-server:~$ cat /etc/network/interfaces
auto lo br0 eth0 eth1
iface lo inet loopback
#mapping hotplug
[Code].....
I must be very thick as i cannot seem to get my dhcp clients to connect to the Internet properly.
on my lucid server i installed dhcp3 server and bind9, i can ping and dig all on the local network. on the clients however, as soon as i go out of the local network there's messages like "unknown host www.google.com" or "network is unreachable".
I don't really have a reason for this currently. I recognize all the MAC address on my DHCP client list and keep it rather well locked down. I was just wondering if there was something I could run on the terminal to get more information on a given MAC address on my network. Something kind of like whois for websites.
View 1 Replies View RelatedAfter installing Ubuntu on a hardrive that already had XP on it, when I get to the part where I choose what OS to boot, and I select XP, all I see is the Windows loading screen for about 3 seconds, then the pc shuts down and restarts itself, and goes back to the OS options code...
View 5 Replies View Relatedwhen I change the hostname on my Ubuntu server, the DHCP clients table in my router is dropped.I'm running 32-bit Ubuntu Server 10.10. My router is a Linksys WRT54GL with firmware version 4.30.15. I'm changing the hostname by modifying /etc/hosts and /etc/hostname. I've also tried changing the hostname using the Linux hostname command in a terminal, but this does not seem to behave correctly according to the manpages (it does not actually change the hostname, or update either of the aforementioned files).
I've also tried using a different router - a Linksys BEFSR41 - but the DHCP table is still dropped when I change the hostname on my server (although this router is not all that different from my other one).
I have setup a dhcp server on eth0, & i have static Internet connection on eth1.
now clients are getting ip automatically, they are able to trace root upto eth0 & eth1.
but i am not able to access Internet from client machines. i am using open suse11 as a server.
i am not able to do telnet & ftp also from client. i am able to access Internet from server.
so please help me to configure my server so that i can access Internet from client machines also.
I'm new to Centos 5 (and Linux) and, after installing Centos, I configured Samba, Apche, ... w/o problems (through interactive interface). My problem is tha t I need to use DHCP (all our clients use dynamic IP addresses for the ease) but I don't find dhcpd ... nor the sample config file(s).
Note : the new server I intend to use is actually connected on a LAN with an 'old' DHCP server (still under W2K server), is this the reason why I can't find/activate dhcp on my new machine ???
This is a bit of an odd problem that's been happening to me recently. My home folder is a version of Fedora old, I've been using the same one between Fedora 11 and 12 (which I'm now using).
When booting up, I notice that my system fonts are not the ones I have manually set. They're the ugly version, whatever exact font it is. It's only when I select System->Appearances from the menu that the system seems to detect my seletions to use Liberation fonts in all areas, and then everything instantly switches to the more visually pleasing Liberation fonts. This is a strange bug, I was wondering if anyone has experienced this or can point me in the right direction?
I have a Dell Precision 330 with (the latest) A09 BIOS and 1 TB SATA hard drive. There is a SATA-IDE converter between the SATA HD and the ATA133 cable. The OS was Window XP Professional SP3.
When adding RH Enterprise Linux 6 onto the computer, I created two additional partitions, one 400 GB for Linux's storage and a 10 GB swap space. I chose Window XP as the default OS.
After the installation, when the system started up, I can hit a key to have two optional OS: Window XP and Linux. If I chose Linux, the system would boot up. If I chose Window XP, the boot failed with a message that windowssystem32configsystem was missing or corrupted. I read some articles that the problem can be fixed in window's recovery console with fixboot. After entering the fixboot command and restarting the computer, Window XP still failed to boot with an error message that another file was missing.
I thought I might have made some mistakes in the installation procedure and it would be cleaner to reinstall both OS. So I tried to install Window XP Professional again. Unfortunately, after booting from Window XP CD and formating the MBR and copying the window XP files, the computer can not restart with the installed XP. Instead, the computer boot from Window XP's CD repeatedly. If I remove Window XP's CD, the computer simply can not boot at all.
I began to wonder whether RH's Enterprise Linux made some change on the MBR of the HD that Window XP can not format.
I'm having really weird and frustrating DNS issues with my clients unable to properly resolve the server's ip address. They can resolve each other's, and outside systems, but not the server - at least, not correctly, and not all the time.
I have one Ubuntu server set up that does both DHCP and DNS serving to the Windows systems. The server has DNS forwarding turned on to forward to OpenDNS's servers (I've tried using my ISP's dns servers but the problem remains).
The server is *not* set up as a firewall; I am actually using a DLink router for that, and the Dlink is *not* set up to serve up DHCP nor DNS.
What I am getting is that my clients - and there are nothing but Windows clients - will not resolve the name of the server. For example, if I do: ping linuxserver
I get back a false IP address of 192.168.0.64 (and I've seen once a 192.168.2.49).
If, however, I put a dot in there: ping linuxserver.
I get back the *correct* IP address of 192.168.0.2, and thereafter, ping'ng linuxserver without the dot will work. Until the dns cache expires, either naturally or with ipconfig /flushdns on the windows clients.
The client *are* getting valid dhcp leases and can resolve everything happy-happy, they just will not get the proper address of the server 100% of the time.
I'm attempting to run a DHCP server on my home network to enable PXE booting for ethernet clients, but I'm having quite a few issues getting it all up and running. I'm not entirely sure what is wrong, but I keep encountering errors in syslog as follows:
Code:
Feb 27 02:26:46 servnerr-1 dhcpd: Wrote 0 leases to leases file.
Feb 27 02:26:46 servnerr-1 dhcpd:
Feb 27 02:26:46 servnerr-1 dhcpd: No subnet declaration for eth0 (192.168.1.3).
[code]....
Networking is not exactly my strong suit, but I would like to get this up and running if at all possible.
I have openvpn tunnel setup between two CentOS servers. One of the CentOS servers also acts as a DHCP server for some client computers.
Server A= OpenVPN server
Server B= OpenVPN client (connects to Server A with OpenVPN)
The two CentOS servers can ping each other (172.16.0.0/24) via the tun0.
However, client computer connected to Server B (DHCP server) can't reach 172.16.0.1 (which is the OpenVPN server).
I think I am missing some routing in my "ip route show". Following is the full picture:
What command can I issue to get this fixed? something along ip route add?
There is no firewall service on both end. service iptables stop! I can't bridge eth1 and tun0 as DHCP server might mess up the other side. I can't do a push of "redirect-gateway def1" because then clients loose their IP as they send DHCP requests to Server A.
I have an internal domain (dev.lan) for which my Ubuntu server is authoritative. We have a number of subdomains under that domain (test.dev.lan, svn.dev.lan, etc.). The server also acts as the primary DNS server for my office. It was originally set up under Ubuntu 8 and worked great.
However, ever since we upgraded to Ubuntu 10, our Windows clients periodically lose the ability to resolve domains on the dev.lan domain. Internal IP addresses can still be pinged from the Windows machines so it does not appear to be a network-connectivity issue. External domain names continue to resolve without any problems. The only workaround is to restart networking on the Windows clients. It's frustrating because it happens several times a day.
bind9 logs no obvious error messages.
(although I'm running Solaris, I've posted here as I expect Solaris/LINUX is irrelevant) - more of a general network Q.I have a PC running Solaris 10 (hostname MARKUNIX) and a laptop running WinXP (hostname MARK-LAPTOP). Both are connected to broadband via a router. IP addresses for each are determined via DHCP (192.168.1.nn) and I do not leave either on, 24x7. I am running Oracle on MARKUNIX and want to be able to refer to it by hostname when using Oracle tools on my laptop.Each machine can ping each other ok by ip address and curiously the Solaris PC can ping MARK-LAPTOP (I'm not sure how it resolves that?) - importantly the laptop cannot ping MARKUNIX.Now I could add MARKUNIX to my laptops hosts file but that would mean changing the file each time I boot up as the ip address for MARKUNIX will keep changing (DHCP).
Is there a way to refer to MARKUNIX without having to keep changing ip addresses and use DHCP? As I understand it the 192.168 address is private and is not really the 'real' ip address and as such can be manipulated(fixed?) even whilst using DHCP?Am I right in thinking that a static ip from my broadband supplier is the ip of my connection (router) and I'll still have the same private network referencing issues?What I've covered above pretty much is the extent of my knowledge of networking so bear that in mind please.
Following situation:
I'm trying to make a network-installation of my rootserver with CentOS 5.4 x86_64.
This server is hosted by 1and1 a company of the united internet group, which is a big player in europe.
The network environment of 1and1 is providing classless static routes via dhcp by using the dhcp option 121.
If i'm right anaconda does not support this dhcp option 121 and therefore does not "ask" for the routes.
Without the routes configured the traffic does not get through and the network installation fails.
An installation from fedora12 (anaconda 12.46) works without any problems.
Is there someone in the dev team that can patch or backport it?
is it possible to create a pxe boot server on fedora for windows clients?
View 2 Replies View RelatedI just updated my kernel to kernel-2.6.29.5-191.fc11.x86_64 on my x64 system, after I reboot my machine, the Fedora loading bar comes up and finishes but then no gui comes up. I attempt to issue commands at the hanging prompt that comes up but nothing happens. I can boot into my older kernel just fine but not the updated one.
What can I do?
I've just updated my desktop to F13 using preupgrade but now grub won't boot it. The upgrade seemed to go OK, and none of the disk partitions should have changed as far as I'm aware, but now I get an error
VFS: Cannot open root device "UUID=xxx" or unknown block(0,0).
I'm new to these forums. I'm coming from using Ubuntu for a couple of years and now I'm trying to switch to Fedora.
I installed F10 yesterday and all went well, more or less. The system used to freeze randomly but after updating, everything seemed to work fine (I haven't tried audio yet, though).
I have an X1250 integrated graphics system that's working fine in Ubuntu. After playing around with F10 for a while I decided to download and install the latest ATI drivers from AMD's site. The installation posed no problems, but when I reboot the system it will come to a black screen at some point and freeze there.
I searched the web a little and came to this: http://www.fedorafaq.org/#radeon, but I'm not sure if that's current or old news. If it's current and those ATI drivers can't be installed, I'd appreciate some help about removing them.
I have recently updated my Fedora 11 installation which replaced my older 167 kernel with the newer 217 kernel. However, the 217 kernel will not boot completely. It will show the splash loading screen, and then will switch to a rapidly blinking cursor. This cursor blinks for about 5 seconds and then disappears. I can access terminals using ALT+F2, etc. I can log in to these terminals, but init commands do not complete (something about a binary handler). I'm not sure if something is conflicting with an update to X or what is wrong. The most recent kernel that I managed to get to work was Kernel 167, however I cannot find this kernel for download.
Sys info:
AMD Athlon 64 X2 4800+
3GB RAM
nVidia GeForce 8600GT with proprietary drivers
320GB Hard Disk with windows and linux partitions
Fedora 11 32-bit i586
Having a problem, have built some VM's and importet some from JumpBox, but they will not boot from the HD. I am using files for the HDs mixture of ".img" and ".vmdk". I can boot and build from the network and CD/ISO, but after the installation completes it reboots attempts to boot from the HD and nothing happends. No error message is displayed.
Has any one come across this ?
I am a linux newbie.
I had dual boot fedora 9 with windows XP before. Now I decided to change to fedora 11. I choose the option Replace existing linux while installing the fedora 11. My windows used to be in C drive while my linus in D drive. So I thought it would replace the D drive and remain dual boot.
However, after I reboot the computer, I realize that it can only boot linux. My windows partition appear as a File System in linux. code...
I just recently notice that my Fedora 13 is randomly stop at boot. This is a fresh install less than a week and with all the updated kernel and software as of today. I could not get much information from /var/log/messages (only about 3 lines at the time it froze).
It froze straight after it finishes the boot sequence. I can see a mouse cursor but that's about it. The last init sequence I could see before going to X was "atd" (if that helps at all)
This install is on a single Seagate 1.5TB drive without any other drives attached to the system (I rule out if that's problem with the other hard drives)
on Gigabyte P35DS3 mobo on ICH9 port
the mobo has AHCI mode for the hard drive
I got some bad sector on the hard drive (40 sectors)
For some reason, it kept stopping when I cold boot. Once it stop and I press the reset button it normally works.
I found another forum mentioning it can be issue with the video driver. So I here's further information of my system code...
FC13
When rebooting and in Boot Selection Menu , the Arrow keys won't go down through kernel selections. They just won't move.
Is this a Linux or CMOS problem ?