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Thread: How do I see if someone is watching my computer?

  1. #1
    Join Date
    Aug 2024
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    How do I see if someone is watching my computer?

    Hello,
    I'm rater new to Ubuntu and see some services on with SSH for example and some weird things according to me in wireshark. How can I see if only I'm logged in and no one is mirroring my screen or taking information like log-in credentials and stuff?

    Can I do any command that do so only I can make connections to websites and so so? And use the computer like I use to but be sure it's not mirrored or someone taking information of my computer?

    Would love all the help I can get!

    Regards Rasmus

  2. #2
    #&thj^% is offline I Ubuntu, Therefore, I Am
    Join Date
    Aug 2016
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    Hidden!

    Re: How do I see if someone is watching my computer?

    Quote Originally Posted by ralle12 View Post
    Hello,
    I. How can I see if only I'm logged in and no one is mirroring my screen or taking information like log-in credentials and stuff?

    Can I do any command that do so only I can make connections to websites and so so? And use the computer like I use to but be sure it's not mirrored or someone taking information of my computer?

    Would love all the help I can get!

    Regards Rasmus
    To see logins:
    Code:
    last
    to look at network activity:
    Code:
    sudo tcpdump -i ethX icmp and icmp[icmptype]=icmp-echo
    Replace ethX with your device. Use "ip a" to see.

    TCDump has flags as well:
    Code:
    -n avoid a (potentially slow) reverse DNS query
    −i interface
    icmp[icmptype]=icmp-echo    To print all ICMP packets that are echo requests/replies

  3. #3
    currentshaft Guest

    Re: How do I see if someone is watching my computer?

    ,
    Last edited by currentshaft; September 2nd, 2024 at 12:55 AM.

  4. #4
    Join Date
    Mar 2010
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    Xubuntu

    Re: How do I see if someone is watching my computer?

    Perhaps if you post some of these "weird" results someone would be able to offer a better analysis.

  5. #5
    Join Date
    Aug 2024
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    Re: How do I see if someone is watching my computer?

    Thank you this helped me alot ty! rather new to Ubuntu as told so these commands can be hard to form yourself in the beginning!, ty!

  6. #6
    Join Date
    Aug 2024
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    Re: How do I see if someone is watching my computer?

    True, I have not done that, ifm it's no default config. But I think its rather not, right?

  7. #7
    Join Date
    Aug 2024
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    4

    Re: How do I see if someone is watching my computer?

    very true, i will check later at home imf i have a dump from wireshark or so. Otherwise I will listen again and see if i "see" these what I think mysterious things are.

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