Ubuntu Servers :: Nfs & Dnsmasq - Cannot Mount The Exports On Clients

Jun 4, 2010

On a Lucid server, dnsmasq is happily running DHCP together with a local DNS; although, in setting up NFS, I seem to have a small problem... I have /etc/exports referencing the hostname of the clients but these IPs change when the DHCP lease is renewed. Unless I restart NFS or run exportfs, I cannot mount the exports on my clients. I know that it would be good to make the all the addresses static; however, I was wondering whether there is another way to configure NFS such as possibly adding in a script to continually monitor /var/lib/misc/dnsmasq.leases and re-export accordingly?

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General :: 3. Etc/exports Entry Would Export A Directory Named /nfs To All Clients On The?

Jan 22, 2011

3.What /etc/exports entry would export a directory named /nfs to all clients on the subnet and give them read-only access?

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Server :: View The Dhcp Clients Over Dnsmasq?

Jul 23, 2010

Is there anyway how to view the dhcp clients over dnsmasq?

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Server :: NFS Exports Do Not Show Up In /proc/fs/nfs/exports?

Sep 6, 2010

I installed Debian on my NAS and I installed nfs to share the files, but I cannot mount anything over nfs with the it. it seems that I dont get the exports right.I added the IP to the hosts.allow, I added it to the exports.to make it easier, shananigen has the IP and is the serverdebian has the IP and is the clientis there a problem if I go across subnets?anyway, here we go

shananigen:/etc# cat exports


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Networking :: Can't Mount Exports Folders From Client?

Jul 16, 2010

I am working on a NFS server embedded on a PowerPC plateform (4650EX, 512Ram, 1 GB Ethernet) but i can't mount my exports folders from my client. Here are messages :-- server side :

$ tail /var/log/message
Dec 11 23:35:45 canyonlands mountd[1345]: authenticated mount request from for /mnt/ssd (/mnt/ssd)


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Fedora Servers :: Make An Entry In /etc/exports To Export A Directory?

Mar 13, 2009

Is there an easy to make an entry in /etc/exports to export a directory for every entry in /etc/hosts?

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Debian :: Running Dnsmasq In Lenny - Wvdial Connecting But Dnsmasq Doesn't Work

Dec 30, 2010

I am running dnsmasq in debian lenny, wvdial connecting but dnsmasq doesn't work, the /var/run/dnsmasq/resolv.conf file is empty this is /var/log/syslog:

The /etc/resolv.conf and /etc/resolvconf/run/resolv.conf is ok:

This is my /etc/dnsmasq.conf:


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Ubuntu :: Dnsmasq Will Not Apply Changes In /etc/dnsmasq.conf?

Dec 27, 2010

ubuntu: 10.04dnsmasq: 2.52-1ubuntu0.1I've installed dnsmasq and it is performing DNS duties correctly. I'd like to limit access to the dnsmasq service to a specific address or interface. I've tried adding variations and combinations of the following to /etc/dnsmasq.conf:



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Ubuntu Servers :: Dnsmasq DHCP Nor DNS Working?

Jun 11, 2010

I 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.

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Ubuntu Servers :: Dnsmasq Does Not Serve Up Remote Tftp Ip?

Oct 25, 2010

I have it working fine when tftp and dhcp are installed on the same server but when trying to forward to a remote tftp it does not work. Dnsmasq insist on giving its local ip.I have added to config:dhcp-boot=pxelinux.0,pxetest2, I tried with and without the original hcp-boot=/var/lib/tftpboot/pxelinux.0Not much on this topic on the google nor on the dnsmasq homepage.

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Server :: How To Inform Clients About Startup To Mount NFS Shares

May 2, 2010

My home network consists of a file server with a RAID5 array of disks and various 'client' computers. Various parts of this RAID array are shared using NFS. The NFS server and clients all work fine for all shares. This computer consumes a lot of power so is only on when needed and the problem I'm struggling with is how to inform the clients that are running when the server starts so they can mount the NFS shares they're interested in? At the moment that the server runs a series of scripts on each client using a command like 'ssh someuser@client -X /home/someuser/bin/mountscript.sh'. This only works if someuser can ssh to client from server without a password (or permission is stored in .ssh/known_hosts), requires a fair bit of work when I add a new client, and is prone to break when I fiddle with things. Is there a more elegant system, maybe one that would allow the file server to broadcast a 'I'm here' message to all clients, or the entire network, on startup, and similarly an 'I'm going away' message when it shuts down again?

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Ubuntu Servers :: Setup 10.04 To Run Clients?

May 6, 2010

I administrat a school in Denmark, with around 40 clients runnig xp pro and a windows 2003 server, but i read about the possibility of running a linux server, with thin clintes that can run from the server, if it has network pxe boot.

I was wondering if anybody now any links to a good how to page, on what is needed on the setup side of the server, and clients. To make it work. And i have to use my dhcp from the win 2003 server. Is that possible.

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Ubuntu Servers :: How Can Clients Boot From Ftp

Jul 28, 2010

Im having a problem with our pxe environment. We have around 200 clients per server to boot from tftp and when we hit 250 the service just freezes. So, our options are to either add more servers or move to a more robust protocol. Is this feasible?? How can clients boot from ftp?

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Ubuntu Servers :: Cant Get Clients To Boot

Jan 28, 2011

I install clonezilla onto ubuntu but I cant get the clients to boot and the steps i find in the tutorials don't really help or apply.

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Ubuntu Servers :: No Login Screen On Clients / Get That?

Sep 17, 2010

I have got a 10.4 LTS LTSP server running as i needed it should do.

When i boot-up one of the terminal it sees the DHCP and starts loading from the LTSP all working ok.... when it gets the login screen some of the terminals get the box on the screen to enter the user name and password. the other terminal dose not.

The work around i have got is that i have to click on the blank screen at the bottom left to get the "pick a session" button then i can login and can login as normal.

When all the clients login all is well, And works as if the system was loaded locally its fast and at the mow its reliable. The only thing that is not working as it should is the log in screen.

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Ubuntu Servers :: Ldap Authentication For Wireles Clients?

Apr 14, 2010

I would like to know whether ldap can be used to authenticate wireless clients with my server.server and clients are connected to a wireless router and i am able to get wireless adapter work in my ubuntu. Is there any anything extra which is required or the openldap server will work for wireless clients?

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Ubuntu Servers :: Dhcp Lan Clients Have No Internet Access?

Apr 20, 2010

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:

pavel@ubuntu-server:~$ cat /etc/network/interfaces
auto lo br0 eth0 eth1
iface lo inet loopback
#mapping hotplug


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Ubuntu Servers :: Route Command - How To Get Internet To Clients

Apr 24, 2010

I do not understand this command well. Yes, I have looked at man route and that whilst that gives lots of information about the switches I cannot see it in context. I have a server with two nics. One to the Internet (eth1) and one to the lan (eth0). I use pppoe and when it is running I get a virtual adapter appear in ifconfic called ppp0 which shows the public DNS and ISP session IP. I entered the command:
route add -host (gateway IP) dev eth1
and get the Internet to appear on the server. However, I do not get the Internet to the clients. I have turned off the firewall to be sure that this is not the problem.

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Ubuntu Servers :: Increase The Clients And Want To Upgrade To Latest 10.04?

Apr 26, 2010

We have been using Ubuntu 8.04 with ltsp the server is Intel P4 with 2 GB Ram and the 8 client consist of either Atom or old P3 and P4. Now we want to increase the clients and want to upgrade to latest ubuntu 10.04.

I heard AMD does excellent job with LTSP but is it possible to have intel clients and AMD as a server. If not then which the best intel server I can have other than xenon (Bcoz of the price factor i dont want to go for that)

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Ubuntu Servers :: DHCP Clients Can't Get Internet Access / Have That?

Jun 21, 2010

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".

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Ubuntu Servers :: Running Localapps In 10.04 LTSP Clients?

Dec 8, 2010

I've successfully built my server, and any fat or thin client that I connect to it boots wonderfully, with great response. I've gone through this exercise because we need a more efficient way of testing computers before delivery to our customers. So, I'm trying to run Passmark's BurnInTest. I've run it before with previous versions (9.something, I think) and it worked well, but I needed to build a new server so we can test more computers concurrently, so I figured I'd get the latest release.

My problem occurs when I try to run BurnInTest - it must have root access to test the local USB, parallel, and serial ports, and the optical drive. For the previous iteration I used a script that dropped into a local xterm session, su'd to a root session, and called the BiT GUI. In this attempt, the same scripts, even when I single-step them manually, results in 'authentication failure' when the su is attempted.

I have enabled the root account and created a password for it in the chroot /opt/ltsp/i386, and rebuilt the image, multiple times, no joy. Using ctrl-alt-F1 I can log in as root, and using dmesg I can see the USB device register when I connect it, so as far as I can tell the root account is alive and well, just not available in a local xterm session for some reason.

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Ubuntu Servers :: Clients Can't Use The Email From The Outside - Configuration / Synchronize?

Mar 22, 2011

I have one local mail server hosted in Mdaemon in my office and ip is My clients can't use the email from the outside. If they want to use the mail, they need to come to office. I want them to use from the outside. How can i set up the mail server. Do i need to host the server on the hosting? I want to synchronize with my local mail server. I don't have the public IP BTW.

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Software :: Debugging Clients And Servers?

Feb 17, 2011

I am trying to find some ideas on debugging clients and servers. For example, what would be -really great- is to

1. start a debugger with a server (running on a port)

2. start up the client (using a debugger).

Run the client and then trace the processing from the client side to the server side.

How can one accomplish this?

I have downloaded valgrid and Qt Creator - but not sure how one can use both.

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OpenSUSE Network :: Nfs And /etc/exports - Excluding Certain Subdirectories

Jun 30, 2011

I have a nfs share on my 11.4 workstation at /abcd. I'd like to export everything under /abcd except for one directory /abcd/dontexport

I searched online for such an option but only came across noaccess option which doesn't seem to work.

exportfs says it is an unrecognized option if I run "exportfs -ra"

This is how my /etc/exports looks like:


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Ubuntu Servers :: How To Switch Clients From A Normal Server To A Cloud

Feb 4, 2010

what cloud computing is and i think it can help me with some of my clients i want to switch my clients from a normal ubuntu server to a ubuntu cloud. as of right now i have to send out a bill to them and if they dont pay i have to shut down there service till they pay. what i would like to do is to have a cloud where i can sell them based on what they use not a set price like it is now. and have them be able to pay there bill on the cloud and if they miss the bill then the cloud can shut off there service till its payed.

i dont know if this is possible and i have looked everywhere and all i can find is info on other businesses billing and now how to set up a cloud to do this. i wish there was some kind of tutorial for this. if anyone can direct me to some good notes/tutorials that would be very helpful. this could be a big changing point in my business if i can do this. it would save a lot of time and cash.

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Ubuntu Networking :: Use Cases For Static Ip Address For Clients Or Servers?

May 23, 2010

what are use cases for static ip address for clients or servers.

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Ubuntu Servers :: Set Automatically Disconnect Inactive Jabber Clients?

Jun 21, 2010

I'm running a small ejabberd server on a LAN. Everything works fine out of the box except that when certain users disconnect they remain listed as online.
Specifically, Linux users who suspend their computers with their client still open are still listed as online. This is not the case for Windows or Mac clients.
I did some research and fount out that it has something to do with the TCP keepalive timeouts on the server. However I cannot figure out how to set those times.

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Ubuntu Servers :: Application To Monitor Ping Times To Clients

Sep 11, 2010

I have an embedded server running Ubuntu which is on a network with a lot of wireless AP's. The AP's doesn't support SNMP or anything else, so I monitor if they are up or down by simply pinging them continuously.

My question is if there is anything I could install on the server that could provide me with a webpage where I could see the ping time to the AP's? So it just shows a list of the IP's I have told it to ping, and what their latest response time is. This is what I basically need, but if it were more advanced than that, and could give warnings if ping time were to high etc.

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Ubuntu Servers :: Set Up A With Windows Clients Running Roaming Profiles

Oct 26, 2010

I'd like to set up a Ubuntu server with windows clients running roaming profiles. I know this is possible but do not know how to set it up. Does anyone know of a guide or anything that can explain this?

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Ubuntu Servers :: Limit The Number Of Concurrent Clients In Ssh Server?

Feb 1, 2011

I am using ssh server to connect to my Ubuntu desktop. I opened the file sshd_config and change my port number of the server.I want to put a limit on the number of clients in the ssh server.

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