Ubuntu Networking :: Secure Remote Desktop With SSH FreeNX & DD-WRT?

Feb 1, 2010

For a Secure Remote Desktop on Ubuntu 9.10 here is how I did it using OpenSSH, FreeNX and a router with DD-WRT v24. Pic of it in use at bottom of post, transferring a file and remote desktop at the same time.

For the purposes of this guide I will use a Desktop as the Server (Host) which is at home. The Client will be a Laptop that I can use to control the Desktop remotely. First you should already be familiar with the Terminal which is where you enter commands (anything in a "Code:" box).

In Ubuntu it is in Applications > Accessories > Terminal In Kubuntu it is usually on the lower left taskbar and is called Konsole I am using Ubuntu so you may have to make some adjustments to this guide if you are not using Ubuntu. Installing OpenSSH (for the rest of this guide I will refer to it as only SSH)


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Ubuntu Networking :: Installing A Secure Remote Desktop?

Jul 18, 2011

I need to securely control my home computer from work. My home computer is connected to the internet via a wireless router using Tomato. I'm using the latest Ubuntu on both ends. Is the Remote Desktop that's installed by default good enough? What settings do I need for my home router to safely allow my remote connections and not leave it open to intruders?

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Networking :: Secure Remote Desktop Access?

Feb 7, 2010

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...

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Debian Configuration :: Run Remote Desktop Sessions - FreeNX Connection Timeout

Apr 19, 2010

I have a Debian VPS running Lenny and I'm trying to setup a way to run remote desktop sessions from it. I went with FreeNX, NX client for windows from nomachine, XDM and xfce4. All seems to have installed well, but I can't start an NX session on my box. I can connect to the server and authenticate, but the client hangs on "Downloading the session information," eventually timing out. The log output is below - I'm not even seeing an error message. Any ideas?


The only thing I noticed during install, which was about 400 packages since this was a barebones VPS, was that I should consider recompiling the kernel with CONFIG_SOFTWARE_SUSPEND=y. I don't know if this has any impact on session information, however, since this is a new session, not one I'm trying to resume.

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Ubuntu :: Best Way To Secure Remote Desktop?

Oct 18, 2010

I was wondering what the best way to secure RD would be? What's the best one to use? I'd prefer a method that isn't always active, so maybe something that I need to enable via ssh first?

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Networking :: Address Of Remote Network In FreeNX Wizard And Bit Type?

May 21, 2010

Some FreeNX start-up troubles here, need a hand. 1) I am trying to establish a connection from my workplace PC on my workplaces's LAN to my home PC on my private LAN (LAN-to-LAN). Just typing in the public IP of the target LAN in the "Host" field gets me nowhere, as it fails to connect due to a denial at port 22 SSH - even though I've done the forwarding in my home router and punched the required hole in the local firewall of the target machine.

This resembles what I'm looking at: [URL]..2) My home PC is 64-bit Mepis and my workmachine is a 32-bit Ubuntu. Is this a problem?

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General :: Secure Remote Desktop Of Ubuntu On Windows Machine On Different Network?

Oct 22, 2010

I would like to setup a remote desktop for my Ubuntu computer so I can use my computer on a Windows computer that is on a different network. How can I do this?

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Ubuntu Networking :: Use Remote Desktop Viewer To See The Desktop On A Windows XP Machine?

Nov 20, 2010

I have my main box, Ubuntu 10.04lts, and I am trying to use remote desktop viewer to see the desktop on a Windows XP machine. The machines are side by side The Ubuntu box is hardwired to my network router, and the XP machine is connected via wireless. Both get to the internet fine, and I can ping the Ubuntu box from the XP box. But, I cannot ping the XP box from the Ubuntu box, and Remote Desktop Viewer won't establish a connection to the VNC server I have running on the XP box.

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Networking :: Remote Desktop ?

May 10, 2009

I know how to connect from Linux Ubuntu to windows by command rdesktop .. but is their a similar command from Ubuntu to Ubuntu where I can type the ipaddress & the port number ..

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Ubuntu Networking :: Cannot Remote Vista Desktop Using RDP

Jan 26, 2010

i am a new user to Ubuntu and Linux for that matter. I am using ubuntu 9.10. I want to remote from my Ubuntu machine into my Vista desktop (Vista Ultimate).i can do so with ease using the various Ubuntu application through vnc. However, whenever I try to do so through RDP I am unable to do so. When I try to remote into the Vista machine through RDP it will launch the Vista login screen where I enter my user name and password. It always comes back saying that the password is incorrect even though the login is the same that is used to login everyday. It doesn't seem to be a firewall problem because I disabled it and get the same results. I also get the same results when using either a wired connection or a wireless connection on the Ubuntu machine.My normal network consists of the Ubunu notebook, my Vista Ultimate Desktop (wired to the router) and my Vista Ultimate Tablet PC on a wireless connection.

I might mention that I can remote using RDP from my Ubuntu notebook into into the Vista Tablet PC with no problem. But not the so with the Desktop. Always fails telling me that I am using an incorrect password. I am the only user on either Vista machine and as far as I can tell everything is set the same on both Vista systems (securrity, remote, etc.) unless I am missing something, which I apparently am.Not sure if it makes any difference but the Tablet pc has always run Vista but the Desktop was orriginally an XP and for the life of me I can't remember if I did an upgrade to Vista Ultimate or a clean install since it has been a year or so.

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Ubuntu Networking :: Use Of The TSC For Remote Desktop Connections?

Jun 17, 2010

Alrighty, I have a couple of questions regarding use of the TSC for remote desktop connections. I'm connecting from my Ubuntu Desktop (Lucid) and i'm connecting to my Laptop (Windows 7) i'm running PC Tools Firewall Plus on the windows machine. The window's machine has remote assistance allowed. At the moment i'm just trying to get the TSC to work on my home network. I filled it out as follows:

Computer: Lappy's IP
Protocol: RDPv5
Username: ZachAdmin
Password: *My password*
Domain: Blank
Client Hostname: Blank

Now the first time I tried to connect, about 20ish seconds passed and "The connection has timed out" appears. So I went into my Firewall and sure enough it was blocking the UDP/TCP packets that my desktop was sending. So I temporarily allowed all UDP/TCP packets. Now when I connect "Connection Refused" immediately pops up. I go into my firewall and it's allowed both inbound and outbound packets from my laptop to my desktop and vis versa. So now i'm really stumped.

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Ubuntu Networking :: Remote Desktop Without A Monitor (10.04)?

Jun 20, 2010

I have been trying and trying to get remote desktop to work without using a monitor connected to the server. I have the server set up to where it can be rebooted and everything perfectly fine remotely (as long as it has a monitor). Unfortunately, I need this to be not connected to a monitor-PERIOD. I would think this would be something to be working out of the box, but I guess not.

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Ubuntu Networking :: 10.04 Remote Desktop Only Allows Local?

Jul 13, 2010

I have Ubuntu 10.04 (fresh install) and it is my work computer/Server and i'd like access to this PC from my home. But with Remote Desktop it only says i can do local.

I've look around and opened up port 5900 in my router. Set this IP to to static and forwarded the port to this computer.

I've read that unchecking the "configure network automatically to accept connections" as it seems to cause an issue in ports i've read. Still nothing.

Here is a screen cap of my settings

Uploaded with ImageShack.us

How can i allow access from my Windows Based PC to this computer over the internet?

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Ubuntu Networking :: Remote Desktop Via SSH Using Krfb

Aug 2, 2010

I've been trying to work out a way to connect my kubuntu workstation at home into my kubuntu server at the office so I can control the desktop as I've no other way to control it (kubuntu server is installed on hyper-v server and cannot for the life of me get the mouse to work in the virtual environment)Anyway, I'm trying to use krfb via a SSH tunnel.I've read various posts, forums and how to guides and am stuck at what looks to be the, or almost the final hurdle.

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Ubuntu Networking :: Windows Remote Desktop Vs SSH?

Aug 3, 2010

What are the pros and cons of windows remote desktop compared to X-windows over SSH on linux?

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Ubuntu Networking :: 10.04.1 Remote Desktop - Only Allow Localhost?

Oct 19, 2010

Is there a way to only accept SSH Tunneled VNC connections from localhost? I would like to close port 5900 on my router and only have SSH open.

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Ubuntu Networking :: Remote Desktop Setup On 10.04?

Oct 20, 2010

install ubuntu 10.04 desktop, configure remote desktop so I can connect from my Mac or Windows machine without being physically be at the ubuntu machine, and I won't have a dedicated monitor for the ubuntu box either. And I want to have root access to everything via remote desktop or VNC.What I have tried: system->preferences->remote desktop to enable remote desktop, I can connect and see the desktop, the mouse clicks would only show on the directly connected monitor, not in my VNC session.Then I tried to install TightVNC server, start a at display :1, I can also connect, but every time any action requires a root access, such as installing a package using Ubuntu Software Center, the root password prompt would only show up on the directly connected monitor.

I also install xrdp package, and followed instructions here: [URL]It actually worked using Remote Desktop application from my Mac or Windows box for a little while until I restarted the machine, thinking I can unplug the monitor and connect via remote desktop from then on. Then it stopped working.

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Ubuntu Networking :: Hamachi With Remote Desktop?

Feb 4, 2011

I actived Remote Desktop on my ubuntu laptop and i want it to be reacheable from remote out of LAN so i installed hamachi but i'm not sure how to make it work..

i installed it on the laptop and i create the network (id+pwd) then i installed hamachi on the pc (with windows) and i login to the network and it gives me the ip (5.225...etc) as you can see from the client i cant ping at this point could i acceed at the remote desktop with that ip?

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Ubuntu Networking :: Remote Desktop Not Working?

Feb 16, 2011

I have a Laptop with Ubuntu 10.04 and a Netbook with Remix 10.04. I'm trying to connect by Remote Desktop from the Laptop to the Netbook. Remote Desktop wasn't installed by default in Remix so I installed it via software centre. I then configured Remote desktop in both machines. When I do Connect on the laptop all I get is a black screen and then it closes with the message "Connection to host was Closed". This happens when I try either VNC or SSH. The other thing that's odd, although both machines are on the same WLAN and I checked "configure networkautomatically to accept connections" on both machines, the Laptop doesn't find the other machine in Remote Desktop. What am I/have I done wrong or have I ommitted something?

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Ubuntu Networking :: Remote Desktop Access From Outside LAN?

Mar 13, 2011

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?

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Ubuntu Networking :: Can't Connect To Remote Desktop

Apr 18, 2011

I'm trying to configure my machine to allow remote desktop connections from outside my home network so i can connect at school, work etc. However, when setting up my remote desktop it says "Your desktop is only reachable over the local network. Others can access your computer using the address localhost." (see attached screenshot) My other linux machine has the same problem, but provides the IP address, is there something i'm missing?

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Ubuntu Networking :: VNC To Remote Desktop After Reboot?

Apr 22, 2011

I have an Ubuntu Desktop machine that I have to frequently access remotely - sometimes after it has rebooted. I'm not concerned about physical security for the machine but I am concerned about remote security.

Since normal VNC isn't activated until after the login, what is the best way to go about remotely accessing this machine's desktop without having hands on it?

I've tried setting auto-login but then I run into the keyring not unlocked problem. Disabling the keyring or setting a blank password seems like a bad idea.

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Ubuntu Networking :: VNC Remote Desktop Artifacts

Jun 21, 2011

Iv just installed 10.10 desktop 64bit to a laptop with drobo attached that i'll be using as a fileserver for the household.Im using VNC for remote administration since it comes baked into Ubuntu already.When connecting to the machine from Windows clients using Real/Tight/Ultra VNC, all clients experience a large amount of screen artefacts after any sort of gui interaction takes place.Iv already disabled compiz effects since VNC still doesn't work with them enabled.Iv included an image of what im seeing from the RealVNC Viewer, though both UltraVNC and TightVNC display the same issue.

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Ubuntu :: Secure Copy: Overwrite Remote File With Sudo?

Mar 18, 2011

My situation:

Host A: need sudo to access the file
Host B: need sudo to access/overwrite the target file

How to copy a file from host A to host B without creating temporaries? Is it possible?

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Security :: Setting Up Secure Remote Logins

Jun 17, 2010

I'm trying to secure the CentOS servers on our company network as the current situation is, shall we say, less-than-ideal: remote root logins with the same password across several servers (behind a firewall, on non-standard ports, but still) and several key processes running as root. My proposal to amend this consists of the following:

- setup a bare as possible SSH-gateway with only the normal user accounts to handle remote access
- disable the root login from anywhere else but LOCAL and create special accounts with root permissions for our ~4 system administrators, like admin.foo admin.bar that can only login from inside the company network, using SSH-keys.

So far my biggest obstacle seems to be creating the administrative users, how do I go about and do that? When I simply create a user adminfoo with uid=0 it will show on my shell as root, which makes it useless as a way to make our admins accountable for their actions. BTW, my initial proposal to use sudo unfortunately met with strong resistance, because it compromises usability.

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Ubuntu Networking :: Remote Desktop Access Refused

Feb 17, 2010

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 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 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.

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Ubuntu Networking :: Remote Desktop Control For Noobs?

May 27, 2010

I need to remotely control my parents' computers to tech support them.My parents use Windows (XP) while I use Linux (Sidux) intuitive application since this is my first attempt at this:

-preferably thru browser

TeamViewer and LogMeIn turn up in my search. Seems like these two are the most popular. How do they stack up to each other?

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Ubuntu Networking :: Remote Desktop Connection Closing After A While?

Jul 7, 2010

Does anyone know what could be causing a Remote Desktop connection to a 10.04 box to be closing after some period of time? I have three systems all running 10.04 with Remote Desktop enabled. I'm using UltraVNC on Windows 7 to connect to them. If I open a connection and leave it open for a long time (like overnight, for example), when I come back in the morning, I still see the VNC window but as soon as I click on it, it closes. I can immediately open a new connection to the box but it now shows two active connections. At first I was thinking maybe there's an idle timeout value but given that Ubuntu still seems to think that the original connection is active, maybe the problem isn't on the Ubuntu side but on the UltraVNC side?

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Ubuntu Networking :: Remote Desktop Sessions - MS RDP Client 5.2

Aug 12, 2010

I have a mate who runs the IT in his office. He has recently set up and secured the network but now has an issue logging in to the network from home. Here is the message I got from him regarding the set up and what he is having specific issues with.

I was really pleased with the results on my Pen Test; the office itself is a pure MS environment but the testers all use Ubuntu 9.10 to hack with. The main tools of choice are Nessus and Ophcrack with a bit of NMap. It's pretty scary what you can do with just these tools. I had a Wireshark trace running all the time and it's fascinating to watch how these guys crack open a system. The only really major change I've had to implement on my network is to force the use of SSL as a transport layer for our remote desktop sessions. This has forced me to start using MS RDP Client 5.2 because it can use certificates on the session. The problem I've got now is that the Terminal Client in Ubuntu can't do this so I can't remote in from home on my Ubuntu laptop.

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Ubuntu Networking :: Connect To Windows Remote Desktop?

Nov 9, 2010

is there any apps compatible with remote desktop? So my xubuntu system can connect to my windows system using the existing set up for remote desktop... or do I need to install a new client/server or thing on both systems? I do not mind doing that if you can recommend a good client/server but would prefer to just connect to the existing remote desktop if possible

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