Security :: Could Not Grab Mouse - Malicious Client Eavesdropping?

Oct 16, 2010

After visiting (and being booted from)'s forum, I am getting the following error message on my system:Could not grab your mouse. A malicious client may be eavesdropping on your session or you may have just clicked a menu or some application just decided to get focus. Try again. I get this if I try to launch Unetbootin, Synaptic, Firewall... Did they put something into my puter? Or is some stuff simply broken after the latest update?

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Fedora Security :: Ssh Malicious Login Attempts

Nov 15, 2009

I have a server box behind my ISP router at home, and I need to allow ssh access to my server. My ISP router doesn't let me allow selectively ssh from some IP. It allows ssh to everyone.

I have fedora10 and openssh-server-5.1p1-3. How can I configure openssh to allow just from 1 IP?

Does it use xinetd at all and the hosts.allow and .deny mechanism?

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Security :: How To Prevent The Execution Of Malicious Commands

Oct 16, 2010

how to prevent the execution of the following commands or how to set a policy or rule that prevents the execution of the following malicious commands

dd if=/dev/zero of=/dev/sda
rm -rf /

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Security :: Firefox Plugin Decodes Malicious Websites?

Apr 15, 2010

A computer security researcher has released a plugin for Firefox that provides a wealth of data on Web sites that may have been compromised with malicious code.

The plugin, called Fireshark, was released on Wednesday at the Black Hat conference. The open-source free tool is designed to address the shortcomings in other programs used to analyze malicious Web sites, said Stephan Chenette, a principal security researcher at Websense, which lets Chenette develop Fireshark in the course of his job.

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Ubuntu :: Keep Getting The Below Msg Could Not Grab Your Mouse?

Jan 7, 2010

I just got a kernel update 2.6.31-17. Vmware needs to recomiple the drivers but I keep getting the below msg.Code:Could not grab your mouse.A malicious client may be eavesdropping on your session or you may have just clicked a menu or some application just decided to get focus.

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Ubuntu :: Can't Grab Title Bar With Mouse If Compiz Enabled

May 5, 2011

I'm now using natty, and Compiz, but if Compiz is enables, I can't move any window. If I try to drag a window with the title bar and my mouse, it has no effect. The cursor won't grab the window.

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Ubuntu :: Mouse Stuck On "move / Grab"?

Oct 15, 2010

Really wierd one this, Just installed Sugar Emulator (the laptop per child OS) with intent to start writing stuff for it. It also came with Xesmphy (can't remember how it's spelt) which generates the window.

Since this, everytime I try to click on anything (even after uninstalling both Sugar and Xesmphy) it grabs it and move it, unless I hold down the CTRL key. For some reason, it doesn't have any effect on either of my task bars, only on open windows.

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Ubuntu :: How To Report Malicious Software

Jan 16, 2010

Having recently gone on an interview with a company that attempted to con me into writing malware for Linux desktops (which made the assumption that javascript and flash were present), I am concerned about this.I have a fresh install of Ubuntu 9.10 desktop x86-64. I wanted to download a free documentary via bit torrent but don't trust bit torrent sites and needed to be able to search for seeds from the client. I installed Vuze (formerly Azureus) from repo. I opened the client and searched for my file and BLAMO!, twenty or so notices came up about me needing an anti-virus, trojans being on computer, etc. Clearly this phishing attempt was directed at a Windows machine, however the behavior of the application is unacceptable. I haven't checked to see if any files were downloaded or nasty tracking cookies created (though I did get one prompt for my password), but I was curious: Is there a place to report potentially malicious or unsound applications in an Ubuntu recognized repo?

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General :: Synergy Client Mouse Speed (Slow)?

Aug 20, 2010

I'm using synergy+ with Windows XP as a server and a CentOS client. The mouse speed on the client (Linux) seems really slow. Is there a way to have the mouse speed from the server persist to the clients?

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Fedora Security :: Sandbox Does Not Run With NX Client?

Apr 12, 2011

My machine, running FC13, is accessed by a NX client / server (freenx-server.i686 package installed). Using the NoMachine NX client, when I launch the sandbox program (policycoreutils-sandbox.i686 package), for example,sandbox -X xtermthe process dies without displaying a screen. The problem comes from the Xephyr server that complains : 'Xephyr cannot open host display. Is DISPLAY set ?'. Xephyr is called in the bash file /usr/share/sandbox/ by:/usr/bin/Xephyr -title "$TITLE" -terminate -screen $SCREENSIZE -displayfd 5 5>&1Is there a way to solve this problem ?

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Security :: How To Trojan A Telnet Client

Jun 20, 2010

I want to log the user name and password passed through the default telnet client on Fedora (7 to 11) system.I have thought of something like this:(Download Telent client src)->(modify src)->(compile and install)but i am not sure...

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Security :: Ssh Encryption Key - How Client Know What Private Key To Use

Mar 18, 2011

When you install sshd and run it with no modifications, then any other machine can connect to your machine without specifying a key. How does this work? Some key is being used, correct? how does the client know what private key to use?

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Security :: Web Client Authentication Through PKI And CACs?

Jul 9, 2010

I'm working on a work project related to Web (Client) authentication and DOD Common Access Cards. But I'm having difficult getting the details about what happens on the CAC side of things.

I familiar with the PKI system as it applies to e-mail. (Correct me if I err, of course.) If you want to sign an e-mail (i.e., so it can be authenticated by the receiver) you use your private key to add a digital signature to the message. Then, the receiver uses your published public key to determine if the digital signature is valid, i.e., was created using your private key (even though the receiver never actually has access to your private key).

So... my questions:

1) When a person with a DOD CAC visits a CAC-enabled web site, and the server grants access after the CAC is inserted, is the authentication process fundamentally the same as what happened with the e-mail authentication?

2) If the private key is used in this process (it would have to be, correct?) is the signature created on the CA Card electronics (i.e., the private key remains on the CAC)? Or is the private key copied onto the computer, which uses it to create the signature?

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Security :: Mouse Pointer Wrong / What To Do?

Aug 19, 2010

I've snort_inline2.4.5 and didn't found snort rules-snapshot-2.4.5.tar.gz at snort home what i do

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Ubuntu Security :: Unable To Ssh To Client When It Is Running Openvpn?

Apr 21, 2010

I have a virtual private server running ubuntu server edition that I have set up as an openvpn client. The problem I have is that the moment I turn on openvpn, I am no longer able to ssh into the machine. Is there a way to enable me to connect to it even when it is tunneling?

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Ubuntu Security :: Get In To Email Client Thunderbird Or Firefox

Mar 18, 2011

I received a suspect E mail from paypal which I reported to them, I did'nt click on anything in the E mail. The Question I am asking is there any way that some one could get in to my email client Thunderbird or Firefox. When I used thunderbird to report the e mail I received a problem reporting that my email couldn,t be sent due to AOL smpt not excepting email because of ssl encrpyption. I checked the settings for the account all seemed ok ssl was still marked. Also while I was on the internet yesterday I got the popup regarding did I want to save a "file" I canceled as I didn,t click anything to download anything.

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Ubuntu Security :: Ssh Client Pass Phrase Window Has Gone

Apr 11, 2011

I'm using ssh key based authentication and I was pleased to find that when I set it up out of the box when I connected to my ssh server it prompted me with a password window rather than typing into the terminal and it remembered the pass phrase from one connection to the next.

For some reason it's stopped showing me the window, instead I'm logging in through the terminal, and it's stopped remembering my pass phrase between connections. since I don't know what the program was called that gave me the login box it's rather hard to search for.

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Security :: Allowing Dyndns Client - Update Iptables Frequently?

Sep 11, 2010

I am using dyndns to keep track of my smartphone's ip address. The idea is to be able to ssh into my home network, protected by an iptables firewall. If I use the command: # iptables -I INPUT 9 -s -p tcp -m tcp --dport 22 -j ACCEPT it updates using the current ip address, but the next time I get an ip address update to my phone and update dyndns to properly provide nslookups, this is not being updated in iptables unless I restart my firewall. Is there a better way to do this?

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Security :: Access Dom0 Files During Vsftpd Server From DomU During Ftp Client

Aug 24, 2010

I have CentOS 5.5 distribution with Dom0 and DomU installed. I try to access Dom0 files during vsftpd server from DomU during ftp client. I successfully login with root and simple user, but when I try to list (or cd to some directory) in user home the SELinux prevent it from me. I get this in audit.log:


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Fedora Security :: Mouse Pointer Locks In SELinux Sandbox Window?

May 29, 2011

Running firefox in a SELinux sandbox - periodically the mouse refuses to leave the sandbox (i.e., gets stuck in the browser, refusing to traverse across the window border onto the desktop). This usually happens once in a while, though periodically once every 15 mins or so - no particular pattern, no pattern in the websites visited either.

The setup is as follows:

- Fedora 15 with a bare metal X install (TWM, desktop locked down ala a kiosk install - I will try a different wm to see if that makes any difference at some point)

- VPN (having been through a few VPN providers not all are equal, and this is a pretty good one, running OpenVPN at the mo. - I will try L2TP when I get round to it)

- Firewall locked down to the max.

- As far as reasonably can be done, no direct access to the machine - the install at least in theory is untainted

Does anyone know of a SELinux forum? Can't see anything myself or at least in the first instance.

I'm assuming this is a MITM problem - largely 'cos I have crime sitting on my (Internet) ass. Same problem with SL6 also, so not Fedora specific. I shall put the security spin into a VM and develop my network engineer skills at some point!

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Ubuntu :: Using SED To Grab URLs?

May 30, 2010

Is there a way with SED to read this link:


and then pull the individual links and list them in order each on a separate line? like...


If SED can't do this is there another command or program that will?

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Ubuntu :: TV Grab Not Working Any Longer?

Jan 18, 2010

I noticed that tv_grab is not working any longer. It seems that they do not updated the pages. It is since long time the problem.

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Ubuntu :: Grab Handles Look Odd On Some Windows?

May 19, 2011

Does anyone else have this problem? [URL]There are ways of 'hiding' it as shown here, but I wanted to fix this bug rather than hide it.

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Software :: Xbmc Not To Grab Cursor?

Oct 27, 2010

I'd like to use xbmc, but at startup it grabs the mouse and keyboard focus. I'd like it to stop doing that, since I want to use X multi pointer feature, one pointer for xmbc screen, the other a working kde desktop. (proof of concept working with enna media center)

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Programming :: Grab One Number From A Row In Text But Not Another?

Apr 23, 2009

I have a text file that contains the following string of numbers and letters:

Mean track length: 3.45 +/- 1.23 mm

Mean track length: 22.45 +/- 12.23 mm

In the first example, I would like to grab only 3.45 and write it into a new file. Then I would like to grab only 1.23 and write it into another file.
I have 80,000 files to do and those numbers can be different every time.

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General :: Grab Audio From A Video Clip?

May 4, 2010

I'd like to take audio track from a video clip in FLV container and save it to something playable by portable music players. Are there any easy to use tools for that? I know how to do that using console tools (mplayer+lame/oggenc), but I'd like to get something clickable, preferably for GNOME.

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General :: Bash Scripting - Grab First And Last Number?

Jan 13, 2011

I'm trying to get an output of a file in numeric order. Basically I need the starting number and the ending number in sed this into anther file. The test2.lis file I'm just awk'ing for the first row and if its out of order put it in order so I can grab the first and last numbers. I'm sure I can do this all in an array. The first sed command gets rid of blank lines and outputs it to a file. Then I head and tail for the first and last number then I want to sed those numbers into a file that exsist.


The error I get is:

sed: -e expression #1, char 24: unterminated `s' command.

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General :: How To Grab Tricky Fields In A String

Mar 28, 2010

I'm writing a script that picks out the time offset in a string, but am trying to figure out a way to print a field based on a match (likely needs to be regex).

Here are some sample fields:
09.900. Either add -12:-1: 0 to existing offset, or restart the slicer with no offset or with offset=00
09.900. Either add -12:-1:30 to existing offset, or restart the slicer with no offset or with offset=00
09.900. Either add -10: 0:-47 to existing offset, or restart the slicer with no offset or with offset=00

What I need would be "-12:-1: 0" from the first line, for example. I was just using "awk '{print $4}'" originally but because of the damn space in the 1st and 3rd lines by the 0, that doesn't work for me. How to grab those fields correctly for all cases?

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Networking :: Grab Certain Data From Trace File?

Jul 28, 2010

Alright, I have a network trace file that I want to parse through.

The file looks like this:

+ 1.002 /NodeList/1/DeviceList/0/$ns3::PointToPointNetDevice/TxQueue/Enqueue ns3::PppHeader (Point-to-Point Protocol: IP (0x0021)) ns3::Ipv4Header (tos 0x0 ttl 62 id 0 protocol 6 offset 0 flags [none] length: 40 > ns3::TcpHeader (49153 > 26 [ SYN ] Seq=0 Ack=0 Win=65535)
- 1.002 /NodeList/1/DeviceList/0/$ns3::PointToPointNetDevice/TxQueue/Dequeue ns3::PppHeader (Point-to-Point Protocol: IP (0x0021)) ns3::Ipv4Header (tos 0x0 ttl 62 id 0 protocol 6 offset 0 flags [none] length: 40 > ns3::TcpHeader (49153 > 26 [ SYN ] Seq=0 Ack=0 Win=65535)


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General :: Grab Line Based On String?

Aug 9, 2011

i have a file with a lot of lines in it, and iould like to grab just the line that contains a string i've specified in a variable... Let me know if you want a sample of the file.

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