Ubuntu Servers :: Starting Several VMs On A Remote Headless Via Ssh
Nov 24, 2010
I'm starting several VMs on a remote headless ubuntu server via ssh using:
Code:
VBoxHeadless -s <vmname>
The VM starts up okay, and I'm left with an occupied command terminal on my local ubuntu machine. So, if I want to start up several VMs on the remote server, I have to open up several command terminals and end up with as many occupied terminals once they're all running. When the local terminal is closed, the remote VM is also shutdown.
Is there a better way to do this without the remote VM being dependent on the local terminal? I'd like to remotely startup the VMs and be able to close the local terminals without shutting down the VMs. I'm sure this must be possible, I just don't know how to do it.
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Aug 14, 2010
I recently installed FatRat on my headless system. I am having trouble starting the program on boot though. When I launch it using the -n switch for no gui, it uses the terminal window as a log file, which means I cannot put it in the bootup programs because the constant logging stops the next program in the list from starting.
Is there any way to launch fatrat without the gui, and letting it release the terminal for further commands after?
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Jan 5, 2010
I want to use a headless (no monitor) and armless (no keyboard/mouse) PC as a Linux box that I can remotely access from my other machines. That is I want to make it look like I'm sitting at the console on the Linux box with a monitor/keyboard/mouse.
I've tried that via the instructions at [URL]
but, the moment I disconnect the monitor and reboot, the remote desktop connection fails as apparently X fails to start for lack of a "screen". Removing the keyboard/mouse does not seem to be a problem.
Is there a workaround?
I guess what I'm looking for is the remote desktop behavior from Windows XP/Vista:
1. Connect -> Get logon screen
2. Disconnect -> Session remains active on remote machine and can be reconnected to
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May 4, 2011
I have been having some trouble configuring a means to remotely administer an Ubuntu Sever 10.04 machine i recently built and am hoping for some guidance. I'm sorta new to linux so please forgive my ignorance of conf files and the command line . I am looking to have this server serve as...VPN Server, Minecraft Server, KVM Server, Torrent and Dyn-DNS box.I have managed to install all the KVM settings including bridged networking running (Personal victory there) and sorta have Minecraft running (only need to figure out how to make it launch on boot). Torrents already taken care of since Transmission came along with the ubuntu desktop install .The big thing that is slowing me down is remote management. I installed ubuntu desktop (thankfully its Gnome 2), i know that most people don't like it but its what i'm most familiar with. I tried running VNC but always needed to login on the physical machine before I could use that which defeats the purpose. I am now using xrdp which frankly the performance is terrible compared to what i was getting with the built in VNC server and still needed the monitor on and active to connec
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Jul 16, 2010
I have a cron job to start spideroak when the server boots code...
Command line arguments not allowed during New User Setup
Interestingly enough.... the line saying "Command line arguments not allowed during new user setup" isn't from my script. Any chance that has something to do with it?
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Aug 29, 2010
I've got a headless server (32 bit 9.04/9.10, can't remember) that started refusing SSH and HTTP connections a few days ago, and I'm just getting around to hopefully fixing it. The problem is that I can't even connect to the darn thing. I've plugged in a mouse, keyboard, and monitor, but the monitor tells me that it has no signal. I know the monitor works with the computer, as I used the same one to set up the server.
Just for kicks, I even tried to put in a live CD, but that didn't help. Any ideas on how I can connect to this thing?
[Code]...
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Feb 9, 2011
I have a very specific requirement outside the typical use case of "enterprise server". If possible, I need to run a FUSE filesystem on a headless server, and share it via Samba.Physical security is a non-issue.I see two challenges with this, that Google and I have been unable to figure out: I'm assuming that in order to mount a FUSE system, a user must be logged in. (Hence the "U" in "FUSE".) So the first challenge is how to get Ubuntu to automatically login, on the physical console, to a user terminal session. (I know this can be trivially done in GNOME, but this won't have X-Windows or GNOME installed.) This has to happen automagically after boot-up; manually logging in locally or via SSH isn't an optin.Second challenge (?), how to share a FUSE file system via Samba?
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Jul 18, 2010
I upgraded my Ubuntu 8.04 LTS server to 10.04 LTS - rebooted and things ran good. I knew I had a few problems, but DHCP and DNS were booting up and working fine for me.I went to take a look at Webmin, but apparently that's been removed from support for Ubuntu 10.04 - so I thought, I'll use eBox. I realized that Ebox didn't have the network module turned on, so I tried to turn it on. I found out the installation was missing scriptaculous, so I got that and installed that and then turned on the network module.I then rebooted the machine - and now nothing. It hangs when I get to the load for Apache. I would like to disable the network module for eBox, but can't find documentation for how to do that from the command line - which I have to use because the damn box won't boot and I'm running from a Live CD.
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Mar 13, 2011
Any command line tool to create a m3u file from directories?
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Apr 29, 2011
I'm new to ubuntu and I wanted to setup a headless server (Asus Hummingbird, 2GB RAM, Ubuntu Server 11.04). The installation was successful but: After I tried starting my server without any connected monitor, the server did not start -> I run into a kernel panic (if I connect the monitor after a while I can see the messages on the screen, Keyboard lights flash...). What do I have to do to get the machine running without any monitor? My second problem is, that the Network is always powered down on system power down -> no WOL is possible. Is there an easy way of enabling the WOL function? I tried several things from different tutorials but nothing worked...
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Jul 29, 2011
This is a silly question maybe, but how can I turn my passport drive off after has being unmounted? I am assuming that's the right order, before removing: umount and then turning off. By the way, I am talking about Ubuntu Server, not regular Ubuntu desktop via GUI.
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Mar 9, 2010
I spent most of the day yesterday trying to make this work and haven't gotten really anywhere with it. Building from source quietly failed although it built without error and I got checkinstall to pack it up it didn't actually work.So I rolled back to the repository version of rtorrent.As I understand it, the things I need to do are (I am thwarted at every step):create user with --disabled-password optioncreating the user is no problem except they seem to have no shell, and running any command while su'd as that user throws an error like Code: Cannot open your terminal '/dev/pts/1' - please check.
I found somewhere that changing the permissions on /dev/pts/N solves this problem however N can change after a reboot, or probably following other events so that's likely not the right fix.create init script to run rtorrent as user in previous stepI found an example that seems like it works but I wont know for sure until I get the prior step worked out fully.
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Sep 17, 2010
Background: I need some help regarding install X server/apps on a headless(ie. no monitor, no graphic device) server. The server is in fact a virtual one by Amazon EC2. So there's no monitor nor any graphics hardware. Fedora server (6, i believe) is pre-packaged. The problem is that I want to be running a server app with a GUI. The app won't start without the GUI (and I probably need to tweak a few things through its GUI too).
I plan on setting up very very bare minimal X on the server and then uses NX for remote access. Can somebody shed some light here?
Simply put, my questions are:
1) What would be the minimal list of package i need to install?
2) Where can I find docs about installing and setting up NX? I could only find very fragmented/outdated docs about it.
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Sep 1, 2011
I am running hummingbird exceed on Workstation with an ip address of a.b.c.d, and connecting to a sun machine with IP address x.y.z.w running Solaris with XDMCP. From the sun machine, we commonly telnet to other sun and linux machines and run X applications.
We have just installed ubuntu 10.04, and I can telnet into that machine no problem.
However, running xterm on the ubuntu machine fails:
xterm Xt error: cannot open display a.b.c.d:0.0
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Aug 9, 2010
i try to write a script to start and stop jboss service from remote systems. starting and stopping jboss service is working fine on local system. when i try to start jboss service from remote system . i not able to start jboss service.
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May 10, 2010
i found this video, and i really want to do the same. *newbie needs to learn [URL]...my question is, what need to be installed and how?
is there any specific configuration to make it works?
and will it work if i want to connect from Ubuntu to Fedora ?
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Nov 29, 2010
I have set up a new IP specifically for SSH and configured SSHD_Config accordingly to listen on this new interface and a specific port. However when I reboot SSH is not starting. Looking in the syslog it shows that it is unable to start. It looks like its trying to listen on the interface before it is set up.
Code:
Nov 29 13:00:23 anubis init: ssh main process (601) terminated with status 255
Nov 29 13:00:23 anubis init: ssh main process ended, respawning
Nov 29 13:00:23 anubis init: ssh main process (610) terminated with status 255
Nov 29 13:00:23 anubis init: ssh main process ended, respawning
Nov 29 13:00:23 anubis init: ssh main process (618) terminated with status 255
Nov 29 13:00:23 anubis init: ssh respawning too fast, stopped
I am able to start SSH manually once the server is booted. Do I need to set up my interfaces differently to ensure they are available prior to SSH starting somehow? I don't want to change my ssh config to listen on all addresses.
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May 20, 2009
How can I start multiple X servers by logging into same user and using same desktop environment like KDE or GNOME. Is this possible by editing .xauthority, .xinitrc etc files?
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Jan 15, 2010
My mysql server won't start on my machine. It simply fails with no errors.
Code:
sudo /etc/init.d/mysql restart
* Stopping MySQL database server mysqld [ OK ]
* Starting MySQL database server mysqld [fail]
When I run cat /var/log/mysql.err the file is empty, thinking this might be a permissions issue
I tried chowning to a mysql user. Here's the current permissions.
Code:
ls -alh /var/log/mysql*
-rw-r----- 1 mysql adm 0 2009-09-30 11:08 /var/log/mysql.err
-rw-r----- 1 mysql adm 0 2010-01-15 09:07 /var/log/mysql.log
-rw-r----- 1 mysql adm 20 2009-11-25 07:35 /var/log/mysql.log.1.gz
-rw-r----- 1 mysql adm 20 2009-11-24 07:59 /var/log/mysql.log.2.gz
-rw-r----- 1 mysql adm 20 2009-11-23 07:56 /var/log/mysql.log.3.gz
-rw-r----- 1 mysql adm 20 2009-11-22 07:54 /var/log/mysql.log.4.gz
-rw-r----- 1 mysql adm 20 2009-11-21 07:47 /var/log/mysql.log.5.gz
-rw-r----- 1 mysql adm 20 2009-11-20 07:43 /var/log/mysql.log.6.gz
-rw-r----- 1 mysql adm 20 2009-11-19 07:35 /var/log/mysql.log.7.gz
/var/log/mysql:
total 8.0K
drwxrwsrwx 2 mysql adm 4.0K 2009-09-30 11:08 .
drwxr-xr-x 16 root root 4.0K 2010-01-15 10:24 ..
Still having the same issue, mysql server is still failing and /var/log/mysql.err is still empty.
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Apr 10, 2010
I am having problems with bond0 starting at boot on ubuntu server 9.10. After I do a restart I have to manually start the network with "ifup bond0". I have installed the built package (ifenslave-2.6_1.1.0-15ubuntu1_i386.deb (as indicated in Bug #482419)).
I have setup bonding for mode=6 with miimon=100 using eth0 and eth1 (both are Intel 10/100/1000 ports using an aic79xx network driver).
The contents of the aliases file are:
alias bond0 bonding
options bond-mode=6 miimon=100
The contents of the interfaces file are:
auto bond0
iface bond0 inet static
address 192.168.15.60
netmask 255.255.255.0
gateway 192.168.15.1
slaves eth0 eth1
bond-mode 6
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Jun 23, 2010
I have it downloaded (linux version). What folder should I put it in?? Does it matter?
I am new to bash so i dont know how to start the Ventrilo Server up.
I navigated to the folder the server is in and did ./ventrilo_srv and ./ventrilo_srv -d and they both come up "No such file or directory".
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Jul 10, 2010
How would I make sure cron is running every time my server is turned on? I want to make cron jobs, but I need to know that it is running when the server boots. Also, I used a program at some point that was terminal based and it showed be what programs ran when the server booted up. It allowed me to check a box and select which programs I could run at boot. If someone could tell me this program,
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Sep 29, 2010
I have a server running 64bit lucid and while trying to get a script to run on boot to start Davmail I appear to have broken something. I have webmin installed but I have been trying to do the majority of things via the command line. I now have davmail starting at boot but a lot of other services don't start anymore, including apache, mysql and webmin. Fortunately SSH still works and I can start apache and webmin from the command line without any problems.
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Nov 11, 2010
From what I've read, it appears that the respawn stanza in /etc/init/mysql.conf would give me the restart option if the daemon crashes, but I want to make sure other safety features of mysqld_safe are present as well.My /etc/init/mysql.conf is the original. I've tried changing the exec stanza from /usr/sbin/mysqld to /usr/sbin/mysqld_safe but the job fails when I sudo service mysql start.mysql.conf
Code:
# MySQL Service
description "MySQL Server"
[code]....
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Dec 8, 2010
What is the proper way to stop tftpd from starting up? There is no numbered rc script symlink for it so I can't use update-rc.d. I don't want to just hack a file unless that is considered "the way".
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Mar 2, 2011
Since I have not gotten anything on the "General Help" I am posting this here: When a Ubuntu 10.10 I have starts up apache2, MySQL and postfix start properly but bind9 doesn't. Once booted is I run 'sudo /etc/init.d/bind9 start' it starts. The only thing odd on this system is I have a "inet6 v4tunnel" interface defined in my /etc/network/interfaces. From booting in the syslog there is:
Code:
/var/log/syslog:Feb 28 19:02:42 ubuntu named[1029]: starting BIND 9.7.1-P2 -u bind -d 9
/var/log/syslog:Feb 28 19:02:42 ubuntu named[1029]: built with '--prefix=/usr' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sysconfdir=/etc/bind'
[code]....
Even with the bind debug level at set at 90 I do not get any more in the logs that what I posted before. The lack of errors in the logs is giving me no idea where to start. I commented out the IPv6 tunnel interface and rebooted and still no help. bind still is not starting at boot. OK, it is not a permissions issue, I have changed the config and zone files to be owned by bind:bind, root:bind, root:root and bind:root and it has made no difference. Doing a fresh install on a Virtual Box VM and configure it in a similar manner bind9 starts normally. (I am almost to the point where I will rebuild the box)
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Feb 7, 2010
I have an installation of F12 where I used VMM to create and run four virtual machines.
If I set the machines to start at boot in VMM, but set my host to not boot all the way into X, the VMs don't boot.
IS that suppoed to be that way? Does VMM's auto-boot of VMs depend on some X or GNOME stage?
If so, what's the best way to fire up the VMs such that it doesn't conflict with any subsequent use of startx? (Don't eant to end up with double the machines just because I had a need to fire up X on the host.)
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Feb 12, 2010
how do I start a ruby on rails application when my Ubuntu server starts up/is rebooted? I start the application by cd-ing into the ruby application's root directory(the application I'm using is Bibapp) and execute the command;
Code:
sudo rake bibapp:start
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Mar 14, 2010
I have a file server running samba 3.4.0. I just upgraded ubuntu to 9.10. The upgrade was unfortunately stopped in the middle, but I think I managed to complete it.The problem is that now samba will not work after a reboot. The daemons are running, but any attempt to connect from a windows machine fails (Windows 7: the network path was not found). Manually restarting the service fixes the problem, but I need a more stable solution!Interestingly, I can ssh to the machine, or rdp to a virtual machine running on it.The logs don't seem to report any error:
Code:
stefano@SERVER02:/var/log/samba$ tail log.smbd
[2010/03/14 04:02:11, 0] smbd/server.c:1068(main)
[code]....
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May 12, 2010
I am trying to get SQL-Ledger installed and running on my computer, which needs PostgreSQL installed to run.Currently, I am having trouble with it starting at boot-up. How can I access the appropriate log files in order to figure out what's wrong?
Also, I need to know what httpd is, and who the owner and groups using that might be on my system.
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