Ubuntu Servers :: Access Virtual Instances Running On The Cloud From Remote Desktop?
Aug 8, 2010
I am a novice in the world of cloud and recently managed to configure Ubuntu 9.04 Cloud (using kvm, eucalyptus and other packages) successfully at my college for my project work. The problem is that i can only manage to view the running instance using rdesktop from any remote machine. Is there any way to do this other than rdesktop/logs? Secondly, I want to develop a application on the lines of google docs as a part of my project. Is it possible to install apache server on this virtual instance, and host a website? How will the client access this website? Which frameworks would be required or do I have to develop one?
I am in the process of setting up a couple of virtual servers in a cloud environment. I am currently working on my application server (Server 1) and am stuck on the creation of my ruleset for this server.
I need to allow SSH, FTP, HTTP, HTTPS, and PING on this server. This server will also need to be able to talk with a couple of database servers as well as a memcache server (all internally within my cloud environment)
I have been reading on iptables, since I have never messed with them before, and have come up with the ruleset I will paste below. I have taken other steps to secure my server...changing ssh port, not allowing root to login via ssh without logging in as a user, turning off unnecessary daemons, editing my hosts allow/deny files, just to name a few.
I am a newbie to iptables, so I would love a bit of helpful advice, criticism, and even a good explanation why I should add or remove or edit something. I really want to know the how AND the why!
I am at a loss. I can not access my work remote desktop via the terminal server client on my wired box running Ubuntu 10.10. My wireless laptop is able to connect right away once I established the VPN connection. The VPN connection is established on both boxes with no problems.
When I tried the Terminal Server Client on my wired boxed, it says it can not establish a connection. Yet my wireless box gets connected immediately!
I check the /etc/dhcp3/dhclient.conf and the /etc/resolv.conf to see if there were any differences, but they are essentially the same. When I have the vpnc connection, they both recognize it and I am able to ping the IP address shown when I do a "ifconfig" on the terminal.
What can be the problem? Anything I need to configure on a wired computer versus a wireless one? What else can I check?
I downloaded the latest 10.4 server CD with the intention of running a small Ubuntu Enterprise Cloud. I am following the directions here: [URL] Ive got 2 laptops that are capable of the tasks assigned to them. Both have dual core Intel chips that are VT enabled, 4GB of RAM, 250GB hard drives. Ill use one ( "server" ) as the front end server running cc, clc, walrus and sc.The other one ( "node1" ) will be the only node controller on my little network. Ive also got another laptop as a client, running euca commands to make instances and what not.These three laptops are connected to a switch. server is 192.168.1.100, node1 is going to be 192.168.1.110, the client laptop is 192.168.1.120.
the server seems to install fine, I select Install Ubuntu Enterprise Cloud, use it as the Cluster, give the cluster a name and 10 IPs to assign, 192.168.1.150-192.168.1.160 After the server is done installing and reboots, I boot the node machine off the CD and again select Ubuntu Enterprise Cloud. It's at this point the install craps out, because it does not recognize a cloud computer on the network.
Indeed, as I go to the server I run
Code:
ps -aux | grep euca
and see nothing running. So I start the eucalyptus service, and run
Code:
sudo euca_conf --list-clusters
and nothing shows up. Ive done some googling, ran some more euca_conf commands, registering the cluster, enabling walrus, cloud and sc. I can access the web gui on the client laptop, then restart the node install on the node laptop. This time it does see the server as a cluster controller, but when it tries to fetch the preseed file, it seems to not know the cluster's IP, as the red box that complains about the lack of a preseed file lists the URL as [URL] ( or whatever the file is called, I dont have the error in front of me. )
what kind of network between cloud controller and nodes, is required for a proper cloud installation? I mean, Does all machines needs to be in same network, in same lan, or may be in MAN or WAN ? how much should be network throughput? 1Mbit/sec , 10Mbit per sec, or 1Gbit/sec? I ask because I need to know the possibility of running nodes on different locations.
What's the difference in terms of scalability? We would be hosting videos and FOSS collaboration tools (wiki, forums, etc.) on 4 separate servers. If I install the cloud server, I will need to install the GUI anyways. The servers are all brand new
Running Ubuntu 9.10. In the Remote Desktop config dialog I get: "Your desktop is only reachable over the local network. Others can access your computer using the address 127.0.0.1 or tabatha.local." I understand this means only the loopback ip address is available. All my other machines show their true local ip address (e.g., 192.168.1.104) in this dialog. Thus I cannot log on to this desktop from other machines.
When I try to do a remote logon from another Ubuntu 9.10 box (or from an XP box using a VNC viewer), I get: "Connection to 192.168.1.102 has been closed." What steps are needed to make this machine show its actual ip address? All file sharing between the various machines is working properly and all windows shares back and forth between XP and 'nix, and among the the vaious XP boxes and linux boxes are available as designed.
How do I do this in 10.4? I need to be able to Remote Desktop into my server over SSH but can't because I don't have a spare monitor on hand... and Ubuntu won't start a desktop if it doesn't detect a monitor.
I've accidentally removed (rm -r) the ubuntu-kvm folder that stores the virtual partitions of my VM. The VM itself is still running. The machine is still accessible over the net (it is a webserver) but since there is no more virtual storage I guess there is no way to regain its contents. Are there any steps I can do to regain the machine? I guess if I just reinstall the machine by means of vmbuilder all newly created discs will be more or less blank.
I need to run an application on a virtual desktop (let say desktop #2) and control it via another app running on the root desktop (desktop #1). That would include screen capture and mouse movements. So basically I capture the application window from desktop #2, scrape it and then click on buttons via my app on desktop #1. Anyway you got the idea.Now my big question is: is that doable ? and if so what's the best language to do it ?
I just set up Remmina the other day to be able to access my desktop remotely. However, I can only do this when I am connected to my home network. Is there a way to set up Remmina so that I can connect to my desktop remotely from outside my home network?
my g/f was able to access her jobs computers from home in Windows. she'd go start->program->access->connect to remote desktop... (or something like that) in any event, i've found some programs in Fedora 14 that say they'd do the same, however i can't get it to work. in "remote desktop viewer" i'm trying to use 'VNC' protocol,and trying to put the ip in the first of the "Host" lines.
now, there might be another issue, is it possible she need more info than the ones she got in order to use LINUX remote desktop? she has (what she has written down as) Computer # 111.111.111.11 and then ';' and 4 additional numbers, so (for the sake of the example) computer#: 111.111.111.11;2222 she has a 'username' and a 'password'.
In the past, I've installed Internet services as daemons and as xinetd.d with no problems. Those approaches do not meet my needs. And, perhaps, nothing will.
- the service was converted from VB-6 to wxPython. It has a GUI which is accessed with either "remote desktop" or VNC. - the wxPython service works on Windows and can be accessed from other hosts on my LAN - the wxPython service works on CentOS and Fedora, but can only be accessed from within the server host. Even from other user-ids. But, I cannot get to it from other hosts. - ipchains AKA firewall ports are marked for INPUT. - The server host uses autologin to fire up a useid in group "user". I do not want it running as "root". the .bash_profile fires the service up. - the service is heavily mult-threaded, and supports devices connected to serial ports asynchronously with the ephemeral port threads (all this works).
There are some programming solutions that I would rather not develop. - a proxy service that runs under xinetd.d. - separate the GUI code from the Internet and serial port code. Allocate a "control" port for remote GUI control. a'la SAMBA & SWAT
Is there any hope, that I can run it as is, by doing some network configuration stuff.
I have 4 boxes on a local network: 2 with XP only, 1 with Ubuntu 9.10 only, and 1 with both. All boxes can share folders, set up with share-admin instead of using Nautilus right-click properties for each folder. I can see and control the remote desktops on all boxes, to all other boxes, from all other boxes,with one exception: I can only access the XP desktop on the dual boot box, not the Ubuntu desktop. When I try I get: "Connection to host 192.168.1.102 was closed." I am refused access to the Ubuntu desktop in this manner from both the other Ubuntu machine, and from both XP machines.
My setups are basically plain vanilla with routine installs of Ubuntu 9.10. On the XP machines I am using TightVNC on the XP machines to view both other XP desktops, and the Ubuntu desktop that is accessible. On both Ubuntu setups I am using (I suppose) vino and vinagre, and have completely re-installed what I think is the relevant software. There is no firewall running on the Ubuntu dual boot, when I check ufw. For reasons I cannot determine the inaccessible Ubuntu desktop is not providing its own address but instead in the Remote Desktop config dialogue it identifies itself as 27.0.0.1 which I think is the loopback id. I know so little about this sort of networking that I am not giving all relevant info, but I still thought I'd try.
I have just installed linux 10.10, I want to use vnc on my another computer to access my desktop using remote access. When I navigate to Remote esktop Preferences. Your desktop is only reachable over the local network. Others can access your computer using the address localhost, no ip address. this is not working.
I was sitting watching a TV show on the internet (streaming from channel 4) and all of a sudden I get a request from an unknown IP address, outside of my local network attempting to access my ubuntu desktop, I obviously declined straight away and stupidly didn't take note of the IP I've checked my firewall settings and no ports are being forwarded, everything is as it should be. I am running Ubuntu 11.04, and a little bit concerned. As of now I have completely disabled remote desktop on my laptop.
I am having the following problems:I have tried installing vnctightserver on Ubuntu and then installing the viewer on my windows machine but when I try to connect it rejects the connection....I need to remotely access the ubuntu-desktopn my ubuntu server LTS 10.04..... I have tried a number of guides but none are working for me....I have a firewall installed (iptables) but the neccesary ports have been opened up but my server still rejects incoming vnc connections.On a side note I do not have physical access to the server so all setup needs to be done via SSH...
I have been searching and reconfiguring for 6 days now and have lost several clumps of hair.. PROBLEM: I want 2+ virtual hosts on my ubuntu server (1 ip) BUT - Only the first "alphabetically" listed sites-enabled shows.
Weird thing going on on my headless lenny box. The shared desktop won't let me in.I am trying to connect with my Mac, ssh is ok. I can connect, start vino-preferences, change everything I want to change, and still it won't let me in. both Mac Ctrl-k to vnc://lenny and Chicken of the VNC won't connect.
New Fedora 13 Install. I have Remote Desktop Enabled. I can access the machine from itself but not others on the network. I stopped the firewall, that did not work. I looked in hosts.allow and hosts.deny, no entries there. The vino server is running. There is nothing in /varlog/messages, dmesg or /var/log/secure, at least nothing I could find related to vino. What else can I check? The conf file in my home folder looks exactly like one on another machine where it is working. forgot to add the message I get when I try it from a remote machine is "The connection to host 192.168.1.100 was closed". So it appears something is actively rejecting the login.
so it's been a while [a long while!] since I needed any desktop access to my suse server.... what are my options for an RDP server these days? VNC and.....? is there anything else? anything better?
I use a hosted machine for work which has vnc and apache servers running. To work on a shell, I connect to the VNC server, and to access files I host them using apache and open them from my browser. It would be great if I can access my shells via my browser itself instead of using VNC or command prompt.
I am looking for an end result like this: [URL].. What are my options? PS: I already tried [URL]..but this uses a java applet to run and does not do it in browser itself.
They are running Kubuntu. How to access their desktop from my home or office using Internet. Logically I remembered about kfrb and X11-vnc. But both of them need some approach to provide security. I'd like if someone could give me some pieces of advice on choosing the simplest and better approach:
To secure kfrb or x11-vnc is simpler or better to mount a vpn or to use an ssh tunnel? Is there any other solution? My pearents ISP use DHCP, so I think it would require some service like dyndns or similar...
I've just been tasked with making our company's workstations available from remote locations over our internet connection. While it seems simple in concept, I know there will be several issues I'll have to deal with. What I'd like to know is if anyone has recommendations as far as software to use and methods for securing connections. I'd like to have communications encrypted, which last I heard OpenVNC couldn't do (maybe that's not the case?). Also, I'm not really sure how the interactions between windows clients vs. my linux server and the remote connections should be handled. Would I need a separate instance of say, OpenVNC, on each client that I wanted to be allowed remote access?
How can I get remote desktop access ignoring firewalls and NATs? I succeeded in creating a remote desktop session within my home LAN.
Though I configured my router to pass through port 5900, and learned the correct external IP, I am unable to create a remote desktop session inbound to my machine, nor outbound to a machine on a remote network (with static IP).
This is caused by various network complications like NATs and firewalls.
Fogcreek's Copilot or Skype on Windows manage to connect with no network reconfiguration.
Is there some remote desktop alternative that "just works"?
