I have successfully configured several dhcp servers, but I fail to see the need for a "shared network". what a shared network is in linux dhcp server terms and its advantage?
View 1 Replies
Using debain 5.0.4 with webmin 1.500 and dhcp3.i have two subnets (192.168.1.0 & 192.168.2.0)at home. The debain dhcp server has 1 NIC using eth0 and eth0:1 (virtual).
I have configured the dhcpd.conf file using webmin, with a shared network, given the two subents are on the same physical network. each subnet has a pool of about 20 addresses.Problem is that when a host boots up which is under the 192.168.2.0 subnet (using its MAC add - no fixed ip assignment), it gets the associated DNS and gateway ip addresses for this subnet, however, the ip address is assigned from the 192.168.1.0 address pool.
I have checked the net extensivly finding all sorts of discussions and solutions. My problem occurs in the same manner irrespective of whether i connect a host direct to the dhcp server or via a (netgear) switch! Please can someone advise on what settings i might be missing, or do i need to set up DNS/DDNS and/or a firewall/router before this works properly?
I've installed the Ubuntu 10.04 Server onto a PPC G4 Mac just for the experience of setting up a server. During the installation process Ubuntu couldn't auto-configure my DHCP Network. I'm using the airport card on a wireless network. How can I manually configure the network once Ubuntu is installed.
View 6 Replies View RelatedI am setting up a gateway Ubuntu box and trying to do this the easiest way possible. Using Network Manager in LL 10.04 I have eth1 (usb) accessing the net and eth0 (wired) set up and working. eth1 has a static IP address of 192.168.0.2 and the USB box has 192.168.1.1. This works and I have no issues with eth0. In order to allow eth1 to "share" the connection I have gone toIPv4 and change the method to "Shared to this computer".
Network-Manager automatically starts a dhcp server and assigns ip's from the 10.x.x.x class of IP's. I want to change the assignable ip range to come from 192.168.1.x. I have figured out that it is set in the dnsmasq-base package as uninstalling this and using:
Quote: >sudo service network-manager restart shuts down the eth0 completely - no IP can be assigned! Reinstall dnsmasq-base and it assigns it back with a 10.42.43.1 IP. (and all other PC's on the network are set to the 10.42.43.x range. Where is the dhcp range set?
I'm trying to install Ubuntu server on an older 05-06 Desktop (IBM) and when I get to the Configuration part it stops right around 95% and the prompt reads that configuration failed do to the fact that my unit is running a non DHCP Network or my machine is two slow. Now it does only have 1 gig in it right now so I'm thinking that might be the problem also. But if it is a DHCP issue how can I install UBUNTU or is it even possible?
View 9 Replies View RelatedMy router is a DHCP Server.My Access Point is a DHCP Server.I'm wondering if it is really necessary and usefull.Is it possible to get an IP from the Router through the Access Point.For exemple I connect my laptop to the wifi Access Point and the IP is given by the router only.
View 2 Replies View RelatedI did set samba server up. I just modified only one configuration from default /etc/samba/smb.conf file.
Just workgroup = MSHOME to workgroup = WORKGROUP.
And browseable = yes.
Beacuse my xp workgroup is WORKGROUP. So I changed as same workgroup name
both unbuntu and XP.
But I couldn't find samba pc on network places at XP. I have started smbd and nmbd already. There is a ridiculous something. I can access samba at XP only typing \samba IP address. But why I can't see at network places. I am using ubuntu 10.04 TL.
Does anyone know if you switch networks Where you have your servers hosted on a Non-DHCP Network, and you switch your IP addresses, then do you have to switch change/assign your new gateway address? I'm not sure if its manually assigned? How do you do it? Also what about nameserver resolving?
View 2 Replies View RelatedI'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 an embedded device for which I've created an html configuration page. This page allows you to set static IPs, dhcp, and can scan for wireless devices.My problem is that in order to access the device it requires that it runs as a dhcp server otherwise people are not assigned an IP and so can not access the embedded devices static IP. (This config page is for the laymen and so they are not the type who are able to set up their own static IPs). One of the potential options is to have the device connect to the network on eth0 acting as a dhcp client. However this prevents me from running a dhcp server.One solution I can think of is running a dhcp server only if it doesn't detect another dhcp server running on the network.
View 4 Replies View RelatedI have an embedded device for which I've created an html configuration page. This page allows you to set static IPs, dhcp, and can scan for wireless devices. My problem is that in order to access the device it requires that it runs as a dhcp server otherwise people are not assigned an IP and so can not access the embedded devices static IP. (This config page is for the laymen and so they are not the type who are able to set up their own static IPs). One of the potential options is to have the device connect to the network on eth0 acting as a dhcp client. However this prevents me from running a dhcp server. One solution I can think of is running a dhcp server only if it doesn't detect another dhcp server running on the network. However I have no idea how this could be setup.
View 2 Replies View RelatedI bought an RTL8187L USB wireless adapter, and have had trouble getting it to work. I have managed to get it to work via manually configuringtime, but lost that configuration, and now it is once again not workingThe root issue appears to be (if I'm understanding correctly what I'm seeing) that when I connect, routes don't get setup properly, so when network manager (or WICD, which I've also tried) get to the DHCP step, my wireless router can't be reached by dhclient.
This is on Ubuntu 9.10, and I'm using the updated driver from realtek.com, btw, though the in-kernel driver was exhibiting the same behavior.So, two questions:- Is anyone familiar with this problem, and is there a fix available?- I believe I can work around it by setting up routes manually (e.g. with a post-connect script in WICD), but after staring at the "route" manpage, I'm not 100% sure of the commands. My router (a FIOS MI424WR) is my DHCP server, and is at 192.168.1.1, and route -n on a working PC (wired connection) gives:
Code:
dave@MinasTirith:~$ route -n
Kernel IP routing table
[code]....
I'm curious if anybody can shed some light for me in this department. We're in a large environment with a Windows DHCP Server. We have been tinkering with LTSP on Edubuntu as thin and fat clients. It works great, but right now we just have 1 server handling the lab, which works fine unless we want to expand, which may be very possible.
These are the instructions I received:
Login to your windows server and load the DHCP configuration screen
Create a DHCP reservation for the MAC address you obtained
Add the configuration options below to enable the machine to boot from the LTSP server
017 Root Path: /opt/ltsp/i386
066 Boot Server Host Name: <ip address>
067 Bootfile Name: ltsp/arch/pxelinux.0 # Specify CPU architecture in place of 'arch', for instance 'i386'
From: [url]
I'm curious, what if I want to have multiple Ubuntu servers on the network that I want to have bootable? For example, let's say I have 3 labs, and 3 servers. Server A to Lab A, Server B to Lab B, and Server C to Lab C. I want all C's computers to boot to C, and B to B, A to A, etc.
1 - How would I add multiple entries on the Windows DHCP Server to allow all 3 (A B C) servers to boot?
2 - How would I be able to isolate the clients so ONLY Lab A clients boot to Server A, etc?
During the Ubuntu Minimal 10.04, 10.10 or XBMC Live (Ubuntu 10.04) I get a DHCP automatic configuration fail. If I change to manual and put the IP, gateway, mask and DNS servers, the installation goes fine but when I boot I don't have a connection.Installing Ubuntu minimal 11.04 everything works.My system is an Asus AT5IONT-i and it's connected by wire to my router. I've double checked the cable and the router and all seams fine.
View 9 Replies View RelatedI am totally new to Linux and have just installed ubuntu 10.10. After configuring the network interface via dhcp I started getting these messages that come in so frequently I can't configure anything else.
[87.186415] Stack:
Why I am getting this messages and more importantly how do I get rid of them.
The installation is on a VM on Hyper-V.
I'm trying to build a Fedora 12 cluster to run DHCP on top of two servers using pacemaker and drbd. The pacemaker runs great but i'm having the hardest time getting DRBD installed.
My kernel version is 2.6.32.11-99.fc12.i686.PAE First i tried to [root@dhcp-primary drbd]#yum install drbd this doesn't give me everything because apparently the kernel module for DRBD must be built from source. so i unpacked drbd-8.3.6.tar.gz and tried :
[Code]...
I'm not very experienced in compiling from source i'd love to make an rpm for this but after scouring the web and trying different install methods, I am still at a loss.
I recently purchased a Dell Vostro v130 which came with Win 7 pre-loaded. I've been using it for a few weeks with no problems, but now I'd like to install ubuntu studio. I made it through the the partitioning part but now I'm getting a networking error: "Network autoconfiguration failed. Your network is probably not using the DHCP protocol. Alternatively, the DHCP server may be slow or some network hardware is not working properly."
I've been using the wireless connection in win 7 without any problem so I don't know why I'm having a problem now.
Why trying to avoid ranting about my Linksys router, I'll try and keep things short. I have a Linksys router in which the default firmware was terrible and would not correctly renew its DHCP lease. After getting feed up with that I flashed dd-wrt on the router and now it works better but randomly DNS queries would stop being resolved. To rule out the chances that it is my ISPs DNS servers I switched my DNS to openDNS, same problem happens (although I have to admit openDNS is a lot better than what my ISP has).
Anyways I'm about feed up with it and about an inch away from drop kicking the thing out my window. To avoid that I figured I will give it one more change and instead of using my Linksys as my network gateway I'll move all of that to my home server, and make the Linksys just an wireless AP. Besides setting up DHCP, DNS, and iptables on the server is there anything else I will need to know and setup on the server to make this work?
Side note anyone using openSUSE for DHCP know if setting up reserved IPs for certain MAC address is possible?
Recently I am setting up Ubuntu private cloud platform, I followed installation instruction but on the setting, When the step:"sudo -u eucalyptus ssh-copy-id -i ~eucalyptus/.ssh/id_rsa.pub eucalyptus@<IP_OF_NODE>" processed, authentication fail happened. so what the solution and how could I solve it.
View 3 Replies View RelatedI tried installing Ubuntu LTS 10.04 Server Edition 64 bit on one of my drives today...
The install completed fine until it went to reboot. Then it faills while initializing the graphics. It tries (a purple flash on the screen) then goes to a text based dump on the monitor.
Ubuntu LTS 10.04 Desktop Edition run great on this machine. I'm wondering if the Server Edition confused by multiple instances of a video card? This computer is SLI bridged:
Code:
Is the xorg or whatever video subsystem that the server edition uses different than Desktop Edition?
My email server (Postfix + Courier + virtual dropboxes) can receive internal emails, but if the email is sent from the exterior (like Gmail or Hotmail) this email is returned to the 3?rovider (like Gmail):Delivery to the following recipient failed permanently:xxxx@xxxxxxx.xxxTechnical details of permanent failure:Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 sorry, no mailbox here by that name (#5.1.1) (state 14).
----- Original message -----MIME-Version: 1.0I've tried a lot of things, I've used this guide:http://flurdy.com/docs/postfix/My Ubuntu Server is 10.4 (Lucid), I had the same configuration with a previous Ubuntu version and everything was right.
After upgrading my ubuntu server from 8.04 to 10.04 and then to 10.10, grub failed to load and showed a: L 99 99 99 99 99 99 99 99 ....
I restarted using a liveCD, mounted my boot partition as /boot and then "grub-install /dev/sdb" (sda is the usb drive now) so I have access to grub console, but I don't know how to recover my boot menu.
I also use LVM, but I don't know if this is relevant.
i was wondering if there is anybody out there who has logwatch running and configured to just grab dhcp leases only
View 3 Replies View RelatedI am setting up dhcp server for my public library and need to divide clients into a number of pools on the same network. The different ranges will be for different filtering requirements via squid/dansguard proxy. I have inhouse clients: staff, adult patron, and child patron, that have different filtering requirements and wireless guests that I want to shorter lease times to handle the rapid turnover rate. Trying to understand the terse manual, you assign pools via allow/deny members of classes, but classes are assigned by matching on mac address or vendor ids. Unfortunately as a poor rural library we have a hodge-podge of hardware with no matchable pattern. So I can solve the inhouse clients by using fixed-address, and remove them from the dynamic pool. Now the dhcp server would be serving only the short term wireless guests from the pool.
A common problem at libraries, you always get a few that are compelled to misbehave and break the libraries TOS. In the past the librarians would kick the offenders out of the library only to have them link in from the step or parking lot. Since I have their mac address in their initial lease I would like to prevent them from reestablishing a connection when they are banned.
My thinking is this; the library's computers are static and not part of the pool, the wireless clients would be unknown-clients, so set the pool to allow only unknown-clients, and for the "bad-boys" add their hosts in a group directive would make them "known" and therefore unable to get a IP from the dhcp server.
group {
host banned1 { hardware ethernet 00:00:00:00:00:01; }
host banned2 { hardware ethernet 00:00:00:95:a6:c1; }
host banned3 { hardware ethernet 0c:f1:b6:fe:00:01; }
}
[Code]....
I have Ubuntu Karmic 64-bit installed. Update manager tells me there are updates available, but when i try to install them, downloading the updates fail and throws this error:
Code:
Failed to fetch [URL]
Consequently, a similar error occurs when I try installing Sun Java 6 Runtime.
Code:
Failed to fetch [URL] Connection failed [IP: 91.189.88.31 80]
And of course Ubuntu Restricted Extras stalls when it's time to download the Java package
I tried synaptic, update manager, aptitude, apt-get, and they all throw similar errors. Then I also tried connecting to different servers, to no avail. So to check if it's my connection to the net that has problems somehow, I tried downloading the file directly through my web browser, and it works. (But it's not recommended, and it won't let me!, install the updates manually, right?) I then checked if I'm using some inappropriate proxy settings, and everywhere it's all set up to connect to the net directly, which is, well, my setup. Take note though, that I am able to install other software normally, i.e, using synaptic, apt-get etc. The ones I tried include Pidgin and Mplayer.
It's just these updates and Java:
Code:
jeanne@jeanne-desktop:~$ sudo sudo aptitude upgrade
W: The "upgrade" command is deprecated; use "safe-upgrade" instead.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following packages will be upgraded:
libc-bin libc-dev-bin libc6 libc6-dev libc6-i386
5 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded .....
Code:
#
# sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com KEY
# Ubuntu supported packages .....
Due to me not remembering how my father set up the DHCP in my FreeBSD server (Files etc) i could not input the corrent info while i was installed Ubuntu 8.04 (LTS) server edition (32 bit). Could anyone be nice enough to tell me what i need to do, or what files to edit so i can access the internet from it?
View 9 Replies View RelatedI have been rtying for a couple of days now to set up a local dns/dhcp server with dnsmasq on a ubunut server 10.04 I followed the basic instructions from several websites, starting with the ubuntu community one, didnt work, then tried some other, and nothing.
In the server the dns works, i test with dig example.com and i can see the time difference, so dns is working. so the problem is not making the dns work but to make the server listen for dns and dhcp resquests and respond to them.
I have desactivated the dhcp from the router so thats not the problem. making a windows box ping the server works, so the network is configured correctly.
dnsmaq is listed as "LISTEN" on netstat, i read in some blog that it should be using ports 67 and 68 but those are no listed, neither i configured them in any moments, none of the instructions i followed mentioned sth about that. i even tried configuring the window box with the ips and dns accordingly and that wouldnt work either.
so in conclusin i have dnsmasq that does have dns set up but wont answer to any requests of either DNS nor DHCP.
I'm have a number of ubuntu servers that all have dual nics.One interface is used to assign a static public ip and the other is used to assign a static internal IP that can be used on the internal network.The interfaces pull IP's from completely separate gateways on different networks.The problem I face now it that our internal network is moving everything to DHCP on the internal side.I can configure my /etc/network/interfaces so that I can get a public static Ip and a private DCHP, but the problem is that the public IP no longer functions for any services.here is an example of my interfaces
Code:
# The primary network interface
auto eth0
[code]....
Ive tried on multiple occasions to setup a dhcp server, but all the google searches return legitimate results it seems, and ill set everything up, except the last few instructions i have to configure /etc/dhcp3/dhcpd.conf and /etc/default/dhcp3-server, but ubuntu says its not there.Im running Ubuntu Server 11.04 and using nano to edit files
View 4 Replies View RelatedI am trying to setup 2 individual FTP users. They should both have access to the same directory. They both need to be able to read/write into the directory. But, I want them not to be able to write to each other's files (e.g. delete, remove, rename, etc.).
So let's say the shared directory is: /home/ftp/shared/
UserA needs read/write access to /home/ftp/shared/. UserA should only have write access to his own files.
UserB also needs read/write access to /home/ftp/shared/. UserB should only have write access to his own files.
It would be a unix box of sorts, but that is the only restriction. I could use whatever software. I am currently thinking pure-ftpd or vsftp but I am open to all ideas.
