Networking :: Connecting VM And Host With NFS?
Mar 4, 2010
I am currently running ubuntu on a qemu-kvm virtual machine, and the host is fedora. I would like to mount a folder of the host machine on my VM, but never succeeded. The result of the command is :
root@armnlib-kvm:~# mount -v 192.168.1.10:/nfs /nfs
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Thu Jul 7 06:02:43 2011
[code]....
And the showmount -e on the host gives :
Export list for cudak:
/nfs 10.0.2.15
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Jul 7, 2011
I am currently running ubuntu on a qemu-kvm virtual machine, and the host is fedora.
I would like to mount a folder of the host machine on my VM, but never succeeded.
The result of the command is:
And the showmount -e on the host gives:
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Oct 15, 2010
I am trying to config linux box as router.
I have CentOS 5.5 client and host in VBox. I can't connect them (I am using bridge adapter mode) as I don't have router in between.
I just created DHCPD on host, and followed
[URL]
But that don't seem to work also. Host is 192.168.1.10 and client is 192.168.1.100 but when I ping host from client, it says Destination host unreachable.
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Jul 7, 2011
I am currently running ubuntu on a qemu-kvm virtual machine, and the host is fedora. I would like to mount a folder of the host machine on my VM, but never succeeded. The result of the command is :
root@armnlib-kvm:~# mount -v 192.168.1.10:/nfs /nfs
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Thu Jul 7 06:02:43 2011
mount.nfs: text-based options: 'addr=192.168.1.10'
[Code]....
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Aug 13, 2010
how to use the eXceed as an X-windows alone without connecting to any host or network?
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Jun 8, 2011
Is there any command which could help me to determine which host name (domain name) an IP is connecting to from the command line?
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Aug 23, 2010
I have two Linux hosts (both running Ubuntu 10.04) and I want one of them to have access to part of the filesystem of the other. I.e. I want remote1 to be able to access the files of remote2:/home/username
This is simply to allow me to access my home directory on the other machine, read-write, and there's no need for other users to be able to access this too. The used IDs for 'username' are different on each host, for reasons I won't go into (Likewise, ADS, etc).
I tried Samba but I found it unreliable. For example, I have a program that monitors a directory and updates a list of around 12,000 files. I found that this list was constantly changing with files dropping out and some files being randomly unreadable. It was too unreliable.
I had something working quite well on remote1 with:
sshfs remote2:/home/username ~/remote2 -o idmap=user -o uid=$(id -u) -o gid=$(id -g)
This works perfectly for a while. Unfortunately remote1 is a laptop and is regularly disconnected from the LAN. This seems to completely break things when this sshfs filesystem is mounted, and typically requires a reboot to recover. I started to look into NFS but I ran into problems with this a few years ago with regards to user id mappings. At the time, I found there was a user-space NFS server that dealt with this but it had a bunch of its own problems. But that was NFSv3. Can NFSv4 'kernel server' handle different user ids and map between them properly? I really don't want to use NIS, and I can't actually change the user IDs anyway - they are set by external means.
Also, how does NFS handle an 'unreliable' network connection? Will it automatically reconnect or will the share be broken until it is remounted? What about something like CIFS? Can this cope with the network being regularly and unpredictably broken? This might have the same problems that Samba did, but it's worth a try if it will be suitable.
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Feb 9, 2010
I just installed Ubuntu 9.10 and its great. However when I connect to the internet at home it shows that the connection has been established but I still cant connect to the internet. My flatmates are all able to connect. However, I am able to connect from work both wirelessly and through an ethernet cable.
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Jan 13, 2010
i know this is crazy, but im using a [URL] and have loaded a copy of "red hat linux 7" on the computer. i have no idea what kind of hardware config/spec stuff i should have in my immediate vision, and if i did i'm not sure how i would make sense of it all. linux loaded fine. didnt save drivers. eth0 not showing in ifconfig report, but lo is connecting to network, other host cannot ping linux and vice versus
can mount a cdrom, but not a usb flash dont quite understand how the load methods work involving /mnt/cdrom/"usbutils-0.86tar.gz" eth0 problems and gnome rpm stupidity keeps me from upgrading sys from old version to a newer version, cant even find the cmd to show me that info, sorry. have usb files i want to mount, dont know how to loAD THE CDROM FOLES, SO EVEN THAT ISNT WORKING OUT HAVE DISCS WITH howtos just need to stay focused on steps to get desired end result, while trying to learn too much info for what im currently doing between all the f!@#@ing windows i have open.
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Mar 4, 2010
I am working on a cluster for a molecular dynamics class and I have to edit my FORTRAN code (only the newest and best for me!). In order to get through to the cluster I have to ssh in. The network on which the cluster resides is behind a firewall, so I have to ssh through the firewall into the network first.
this is fine, I can login and move files and folders as needed, including sftp-ing into host 1, then into the cluster so I can transfer files from cluster to host and then host to me. This gets rather tiresome, so it would be nice to edit the files in place.
The problem is that when I access my code with emacs it launches the emacs client on Host 1, with no mouse support. I know the purists will howl about how I should be using keyboard shortcuts, but I am a chemist and not a programmer, so the mouse is very nice for me. Is there any way I can perhaps mount the cluster using sshfs so that when I open my code it launches a local instance of emacs? Sorry if this is the wrong forum, but I thought it was network related.
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Oct 12, 2010
I got a bunch of machines (~10) that I share with my co-workers. I have appropriate .ssh file(s) set up so I don't get prompt for password when I try to ssh.Currently I ssh into these hosts and then do a top to check the load before I start using the machine. Because I don't want to be on a busy host.Can someone show me how to write a script that find a least-busy host given a list of hosts to check? (hardcoded is fine)
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Jan 27, 2009
The internal network is behind nat done by the PC Router.The TP Link is recieving wireless signal from outdoors and it has switching and basic routing capabilities. I'm using the PC router for better routing options.PC Router (or R for short) is a triple-booting machine - Linux, FreeBSD and Windows. It has two lan cards - external (ext_if) - 100Mbps Realtek 8139 and internal (int_if) - 1Gbps integrated Realtek 8169.The problem is that all traffic from R to the network is slow - about 5-20K, while the traffic in the oppoiste direction is all right - about 10MB that is fine for 100Mbps cables, NICs and switches. The problem persist no matter the OS the pc R is running.I've tried some debugging on the situation as follows:
- put another PC at the place of R - everything is fine. That exclude the possibility of damaged cables, RJ-45s, switches and etc.
- connected both of the NICs to the Internet while the internal network is being disconnected and they both work fine (no delays)
- traffic shaping is not running
- there is nothing in firewalls except NATing the internal network (and it is working fine). Actually these firewall rules have been operational for more than months and everything was fine untill a week or two ago.
- changed the internal NIC with another
- connected the internal network directly to the TP and all of the PCs are getting good network performance. Then connected the R machine to the TP as well and there was good performance between the internal network PCs and R.
- R has good performance to the TP. In fact everything has good performance directly to the TP (when not connecting trough R).
- the problem persist only between R and machines from the internal network.
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May 19, 2010
So here's the setup:
Ubuntu 10.04 host inbound port 22 open
FreeBSD 8.0 host no inbound ports open
Both hosts are running sshd currently. What would you do for the Ubuntu host to be able to ssh to the FreeBSD host? A tunnel?
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Jan 19, 2010
Host - 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:
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Jan 16, 2011
I just want to use Internet Connection Sharing (ICS) to connect to the internet. I have done a massive amount of troubleshooting, but some of it seems to contradict itself, and the only two things that I know for sure are that it used to work, and that my Ethernet cable is not the problem. When I use Terminal utilities like ifup and dhclient it seems that it can not determine IP information, but when I try to put it in manually, the "Apply" button grays out right after I finish typing it in. When I try to connect normally, in KDE or GNOME, the icon acts like it's connecting, then instead of having the connected icon, I receive a notification that "the network has been disconnected", and it goes back to the disconnected icon.
Oh, and by the way, I know that I could probably find a workaround, but I have limited resources, and this used to work. The Linux is a Dell desktop with Fedora 12 and the Windows is a Windows 7 HP laptop.EDIT: I hope that I didn't mess something up, but I accidentally used system-network-config to try putting in the IP address there, and ended up changing it back to the original settings, but the computer is now calling it Auto Ethernet in the taskbar icon, although sudo iwconfig in the terminal still calls it eth0.
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Dec 29, 2010
I have a Squid Proxy Server running on centos in my office. The proxy server is running OK and I have to apply the proxy settings in web browsers to access internet. I have also created different users to access internet. I have also created a VPN server in proxy server. It is also running very fine. People from outside and inside the office can connect to the VPN server. I have also opened all ports on proxy server.
Problem is, if any of my employee try to connect any other VPN server outside my office, it does not get connected. It shows some "ERROR 619". Whenever I try to connect it always show this error after verifying username and password.
I am not getting that where the problem is. Is there firewall problem in proxy server? OR anything else?
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Sep 8, 2009
Many of mails sent from my mail server that are in Queue;The main reason is deffered by domains like yahoo,aol,etc.but there is one more error that i keep getting and that is Host Unknown,Below is an example from mail log,The catch is,test mail sent on the same email id sent from my personal mail from the same server i.e. url was deliveredHowever,another mail containing client information sent from customercare@mycompanysdomain ended up in queue.
There are more examples of the same,around 20 domain have the same problem.
Sep 7 14:33:46 server2 sendmail[24591]: n8793jiC024589: to=<abc@xyz.fi>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=163672, relay=xyz.fi., dsn=5.1.2, stat=Host unknown (Name server: xyz.fi.: host not found)
Sep 7 22:09:42 server2 sendmail[6407]: n87Gdffa006403: to=<abc@def-fgh.com>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=152474, relay=def-fgh.com., dsn=5.1.2, stat=Host unknown (Name server: def-fgh.com.: host not found)
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Feb 24, 2011
Forgive me if this has been answered, but searches have been un-fruitful. I recently built a 64 bit Ubuntu 10.10 pc. It is sitting right next to my Windows 7 Premium 64 bit machine. They can't see each other. I disabled Homegroup on my network. Now, when I try to access Ubuntu from Windows, I am prompted for a username and password. Both systems have the SAME UW and PW. It doesn't connect.When I go from Ubuntu to connect to Windows, I am prompted or Workgroup passwords.
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Apr 28, 2011
I was wondering if it is possible to SSH into my home PC and enable the VPN I have already set up there? After loads of Googling I have been unable to find the command!
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Feb 2, 2011
connecting to various servers on my network via SSH. All IP's on my network are static IP's that I've set.
DHCP is at: 192.168.1.1
Subnet: 255.255.255.0
Source IP that I'm trying to SSH from is 192.168.1.2 (My MacMini) I have 2 servers that I SSH into both running CentOS. One I have no problem with: 192.168.1.102 But the other I can't seem to get to: 192.168.1.103 The strange thing is I can only get to it once I ssh into my .102 server. Then ssh from there to my .103 server.
It started breaking down about a few days ago when I installed my VPN server. Could this be causing the problem?? I can access the VPN interface both internally (with a local ip) and externally (outside from the Internet). But why can't I ssh to it from my local network? I've set the subnet for the VPN to be the same as my network.
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Apr 25, 2010
How to configure Red Hat IP. Here's what I'm trying to do use linux as a web server and at the same time connect the linux machine to local area network. So I need to configure one static ip such as 203......... and then 192.........
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Mar 31, 2011
I would like to connect a PC (it has no white IP) through Internet. It's possible to create tunnel with SSH, but I need more easy way. May be there is some service exists (like TeamViewer), so people can just run simple command on that PC?
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Dec 13, 2010
I can connect to the Internet using the Windows Drivers for my USB iBurst pppoe modem running in a VirtualBox VM running Windows XP on my Ubuntu 10.10 host. I haven't been able to get this working under Linux.
Is there any way I can connect to this from the Linux host.
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Aug 16, 2010
Am not able to browse on Linux 5.please provide me step by step procedure to config internet on my Linux 5
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Jul 3, 2011
I am having problems connecting to my VNC server. The host machine is running fedora core 15.
In the past I have been able to connect to the machine, but for some I no longer can't.
I have done the following but still am unsure what problem is
1. Verfied the VNC server is running
2. Verified my user "trb" is in the vnc users list
3. I have checked that my port is open (at least i think). i launched a terminal and did "telnet 127.0.0.1 5902" and successfully connected.
My vncservers config file which is located in /etc/sysconfig/vncservers
Code:
Here is the log file from my latest connection attempt.
Code:
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Oct 20, 2010
I have two servers, one has an empty / and the other has a subdirectory with a large number (4 gig) with many, many files. I need a way to transfer the files en masse from the server with the large number of files to the one that is essentially blank.I don't have space on the used host to simply gzip all the files. I've googled this and see that there may be some combination of tar and/or gzip that will let me do this with some sort of redirection.
I really need and example line of how this can be accomplished. If my explanation seems rather sparse, I can supply more details.
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Oct 30, 2009
Bit of an odd one, this. I've migrated a website from my old server to a new machine. Both servers run Ubuntu + Apache2. Both only serve a single site, apart from the default site.I've flipped the domain name to the new IP address.The trouble is that after moving the virtual host config over into sites-available, with the necessary link in sites-enabled, Apache attempts to serve from the default web root (/var/www) rather than the actual site content (in /var/www/technology). So for example, an attempt to browse.
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Jul 3, 2011
I'm trying to get Synergy up and running between my Windows 7 (server) host and my Arch Linux (client) host. In rare exception, synergy works perfect on my windows host, however every time I try and run Synergy on my linux machine I get the following error in messages.log:
[code]...
I'm running Arch with a barebones Xorg install and SLiM with LXDE. I'm not sure what in the world is causing the problem and haven't been able to find anything of substance in a search.
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Aug 2, 2009
Got up this morning and switched on theLinux Box and started getting wifi connect problems. I could work for about 5 mins then it would start searching and asking me to confirm to connect to my network.After some time NM kept on asking all the time to confirm the network and key.I reset the router and check to see if other PCs were OK and a Windoze & Linux laptops were fine, no problem there so it's not the routerd.I'm wondering if the broadcomm card is starting to fail as it heats up or could it be a corrupt file or parametersNo updates have been done in the last month, it just started today. Here are the results from the log and dmesg:
[root@mylinux ~]# dmesg | grep b43
b43-pci-bridge 0000:05:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
b43-phy0: Broadcom 4306 WLAN found
[code]...
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Apr 15, 2010
I'm using ADSL modem (not router) and I can't connect to internet. The network manager and the pppoe-setup command doesn't work. So I'm asking some of the experienced users of fedora 12 to help me setup my connection.
Details: ADSL modem with pppoe connection (working fine on win xp)
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