How do I remove another computer which has remote access to my laptop?
up vote
2
down vote
favorite
I visited a friend recently and he uploaded Linux on my laptop. He uploaded many programs from his laptop unto mine using a terminal. To do this he had to add a very long code from his laptop onto my laptop using my terminal and visa versa from mine to his using his terminal to give him remote access through his wifi to my laptop. I am new to the Linux OS and still have much to learn so please bear with my ignorance.
My question: How do I find that long code and remove it and what would be the right terminology to describe what he did on my laptop? Did he merely create a network group through terminal or did he open a kind of a door which only he knows of?
$ dpkg -s openssh-server | grep Status
Status: install ok installed
command-line networking remote-access
edited Dec 12 at 15:09
kenorb
4,27913749
asked Dec 11 at 22:26
Codering
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
|
show 1 more comment
up vote
2
down vote
favorite
I visited a friend recently and he uploaded Linux on my laptop. He uploaded many programs from his laptop unto mine using a terminal. To do this he had to add a very long code from his laptop onto my laptop using my terminal and visa versa from mine to his using his terminal to give him remote access through his wifi to my laptop. I am new to the Linux OS and still have much to learn so please bear with my ignorance.
My question: How do I find that long code and remove it and what would be the right terminology to describe what he did on my laptop? Did he merely create a network group through terminal or did he open a kind of a door which only he knows of?
$ dpkg -s openssh-server | grep Status
Status: install ok installed
command-line networking remote-access
edited Dec 12 at 15:09
kenorb
4,27913749
asked Dec 11 at 22:26
Codering
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
Please edit and add the output ofdpkg -s openssh-server | grep Statusto your question. This checks whether this package is installed on your system, ssh is the way to set up a connection like you describe. If it is installed and you don’t want it to be, simply remove it withsudo apt remove openssh-serverand restart.
– dessert
Dec 11 at 22:37
There are plenty of ways to allow remote access to your computer, ranging from standard solutions (like ssh) to secret backdoors. Do you fully trust your friend? If so, ask them to describe what they did and to undo it, they know it much better than any of us could figure out. If not, reinstall your system from scratch, without their help.
– egmont
Dec 11 at 22:48
By the looks of it I am almost certain that it is an openssh-server. I checked and openssh-server is installed. How can I check for the accounts that has access to it? The article at help.ubuntu.com/community/SSH/OpenSSH/Configuring helped allot, but I cant seem to find a way to check for accounts.
– Codering
Dec 11 at 23:10
I don`t want to assume that the openssh-server is in fact the way he gained access to my laptop. I would like to verify it. Also as I am still learning to code and have little to no knowledge of ssh, I think it would make a good exercise to manually remove his account.
– Codering
Dec 11 at 23:44
3
Another option would be to ask your friend what he did to your laptop. Our knowledge is naturally limited.
– WinEunuuchs2Unix
Dec 12 at 2:15
|
show 1 more comment
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I visited a friend recently and he uploaded Linux on my laptop. He uploaded many programs from his laptop unto mine using a terminal. To do this he had to add a very long code from his laptop onto my laptop using my terminal and visa versa from mine to his using his terminal to give him remote access through his wifi to my laptop. I am new to the Linux OS and still have much to learn so please bear with my ignorance.
My question: How do I find that long code and remove it and what would be the right terminology to describe what he did on my laptop? Did he merely create a network group through terminal or did he open a kind of a door which only he knows of?
$ dpkg -s openssh-server | grep Status
Status: install ok installed
command-line networking remote-access
edited Dec 12 at 15:09
kenorb
4,27913749
asked Dec 11 at 22:26
Codering
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I visited a friend recently and he uploaded Linux on my laptop. He uploaded many programs from his laptop unto mine using a terminal. To do this he had to add a very long code from his laptop onto my laptop using my terminal and visa versa from mine to his using his terminal to give him remote access through his wifi to my laptop. I am new to the Linux OS and still have much to learn so please bear with my ignorance.
My question: How do I find that long code and remove it and what would be the right terminology to describe what he did on my laptop? Did he merely create a network group through terminal or did he open a kind of a door which only he knows of?
$ dpkg -s openssh-server | grep Status
Status: install ok installed
command-line networking remote-access
command-line networking remote-access
edited Dec 12 at 15:09
kenorb
4,27913749
asked Dec 11 at 22:26
Codering
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Dec 12 at 15:09
kenorb
4,27913749
asked Dec 11 at 22:26
Codering
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Dec 12 at 15:09
kenorb
4,27913749
edited Dec 12 at 15:09
kenorb
4,27913749
edited Dec 12 at 15:09
kenorb
4,27913749
4,27913749
asked Dec 11 at 22:26
Codering
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Dec 11 at 22:26
Codering
113
asked Dec 11 at 22:26
Codering
113
113
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Codering is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
Please edit and add the output ofdpkg -s openssh-server | grep Statusto your question. This checks whether this package is installed on your system, ssh is the way to set up a connection like you describe. If it is installed and you don’t want it to be, simply remove it withsudo apt remove openssh-serverand restart.
– dessert
Dec 11 at 22:37
There are plenty of ways to allow remote access to your computer, ranging from standard solutions (like ssh) to secret backdoors. Do you fully trust your friend? If so, ask them to describe what they did and to undo it, they know it much better than any of us could figure out. If not, reinstall your system from scratch, without their help.
– egmont
Dec 11 at 22:48
By the looks of it I am almost certain that it is an openssh-server. I checked and openssh-server is installed. How can I check for the accounts that has access to it? The article at help.ubuntu.com/community/SSH/OpenSSH/Configuring helped allot, but I cant seem to find a way to check for accounts.
– Codering
Dec 11 at 23:10
I don`t want to assume that the openssh-server is in fact the way he gained access to my laptop. I would like to verify it. Also as I am still learning to code and have little to no knowledge of ssh, I think it would make a good exercise to manually remove his account.
– Codering
Dec 11 at 23:44
3
Another option would be to ask your friend what he did to your laptop. Our knowledge is naturally limited.
– WinEunuuchs2Unix
Dec 12 at 2:15
|
show 1 more comment
2
Please edit and add the output ofdpkg -s openssh-server | grep Statusto your question. This checks whether this package is installed on your system, ssh is the way to set up a connection like you describe. If it is installed and you don’t want it to be, simply remove it withsudo apt remove openssh-serverand restart.
– dessert
Dec 11 at 22:37
There are plenty of ways to allow remote access to your computer, ranging from standard solutions (like ssh) to secret backdoors. Do you fully trust your friend? If so, ask them to describe what they did and to undo it, they know it much better than any of us could figure out. If not, reinstall your system from scratch, without their help.
– egmont
Dec 11 at 22:48
By the looks of it I am almost certain that it is an openssh-server. I checked and openssh-server is installed. How can I check for the accounts that has access to it? The article at help.ubuntu.com/community/SSH/OpenSSH/Configuring helped allot, but I cant seem to find a way to check for accounts.
– Codering
Dec 11 at 23:10
I don`t want to assume that the openssh-server is in fact the way he gained access to my laptop. I would like to verify it. Also as I am still learning to code and have little to no knowledge of ssh, I think it would make a good exercise to manually remove his account.
– Codering
Dec 11 at 23:44
3
Another option would be to ask your friend what he did to your laptop. Our knowledge is naturally limited.
– WinEunuuchs2Unix
Dec 12 at 2:15
2
2
Please edit and add the output of
dpkg -s openssh-server | grep Status to your question. This checks whether this package is installed on your system, ssh is the way to set up a connection like you describe. If it is installed and you don’t want it to be, simply remove it with sudo apt remove openssh-server and restart.– dessert
Dec 11 at 22:37
Please edit and add the output of
dpkg -s openssh-server | grep Status to your question. This checks whether this package is installed on your system, ssh is the way to set up a connection like you describe. If it is installed and you don’t want it to be, simply remove it with sudo apt remove openssh-server and restart.– dessert
Dec 11 at 22:37
There are plenty of ways to allow remote access to your computer, ranging from standard solutions (like ssh) to secret backdoors. Do you fully trust your friend? If so, ask them to describe what they did and to undo it, they know it much better than any of us could figure out. If not, reinstall your system from scratch, without their help.
– egmont
Dec 11 at 22:48
There are plenty of ways to allow remote access to your computer, ranging from standard solutions (like ssh) to secret backdoors. Do you fully trust your friend? If so, ask them to describe what they did and to undo it, they know it much better than any of us could figure out. If not, reinstall your system from scratch, without their help.
– egmont
Dec 11 at 22:48
By the looks of it I am almost certain that it is an openssh-server. I checked and openssh-server is installed. How can I check for the accounts that has access to it? The article at help.ubuntu.com/community/SSH/OpenSSH/Configuring helped allot, but I cant seem to find a way to check for accounts.
– Codering
Dec 11 at 23:10
By the looks of it I am almost certain that it is an openssh-server. I checked and openssh-server is installed. How can I check for the accounts that has access to it? The article at help.ubuntu.com/community/SSH/OpenSSH/Configuring helped allot, but I cant seem to find a way to check for accounts.
– Codering
Dec 11 at 23:10
I don`t want to assume that the openssh-server is in fact the way he gained access to my laptop. I would like to verify it. Also as I am still learning to code and have little to no knowledge of ssh, I think it would make a good exercise to manually remove his account.
– Codering
Dec 11 at 23:44
I don`t want to assume that the openssh-server is in fact the way he gained access to my laptop. I would like to verify it. Also as I am still learning to code and have little to no knowledge of ssh, I think it would make a good exercise to manually remove his account.
– Codering
Dec 11 at 23:44
3
3
Another option would be to ask your friend what he did to your laptop. Our knowledge is naturally limited.
– WinEunuuchs2Unix
Dec 12 at 2:15
Another option would be to ask your friend what he did to your laptop. Our knowledge is naturally limited.
– WinEunuuchs2Unix
Dec 12 at 2:15
|
show 1 more comment
1 Answer
1
active
oldest
votes
up vote
1
down vote
With dpkg -s openssh-server | grep Status returning installed you have confirmed that someone installed an SSH server on your machine, as this package is not installed by default in any of the current Ubuntu releases (see their .manifest files). If you don’t need remote access to your machine and want to make sure nobody else is using ssh to get access either, simply remove this package with
sudo apt remove openssh-server
and either reboot or stop the sshd service with
systemctl stop sshd
and kill any connection that may still be active with:
killall sshd
Manually removing an SSH user is more complicated and requires much more information than you gave us, but these questions might be helpful:
- How to log off an user from SSH?
- What is a user-friendly way to log off other users?
- How to delete useless ssh key on my server(Ubuntu server 16.04) and generate new one
answered Dec 12 at 7:35
dessert
21.8k55896
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Codering is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1100156%2fhow-do-i-remove-another-computer-which-has-remote-access-to-my-laptop%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
With dpkg -s openssh-server | grep Status returning installed you have confirmed that someone installed an SSH server on your machine, as this package is not installed by default in any of the current Ubuntu releases (see their .manifest files). If you don’t need remote access to your machine and want to make sure nobody else is using ssh to get access either, simply remove this package with
sudo apt remove openssh-server
and either reboot or stop the sshd service with
systemctl stop sshd
and kill any connection that may still be active with:
killall sshd
Manually removing an SSH user is more complicated and requires much more information than you gave us, but these questions might be helpful:
- How to log off an user from SSH?
- What is a user-friendly way to log off other users?
- How to delete useless ssh key on my server(Ubuntu server 16.04) and generate new one
answered Dec 12 at 7:35
dessert
21.8k55896
add a comment |
up vote
1
down vote
With dpkg -s openssh-server | grep Status returning installed you have confirmed that someone installed an SSH server on your machine, as this package is not installed by default in any of the current Ubuntu releases (see their .manifest files). If you don’t need remote access to your machine and want to make sure nobody else is using ssh to get access either, simply remove this package with
sudo apt remove openssh-server
and either reboot or stop the sshd service with
systemctl stop sshd
and kill any connection that may still be active with:
killall sshd
Manually removing an SSH user is more complicated and requires much more information than you gave us, but these questions might be helpful:
- How to log off an user from SSH?
- What is a user-friendly way to log off other users?
- How to delete useless ssh key on my server(Ubuntu server 16.04) and generate new one
answered Dec 12 at 7:35
dessert
21.8k55896
add a comment |
up vote
1
down vote
up vote
1
down vote
With dpkg -s openssh-server | grep Status returning installed you have confirmed that someone installed an SSH server on your machine, as this package is not installed by default in any of the current Ubuntu releases (see their .manifest files). If you don’t need remote access to your machine and want to make sure nobody else is using ssh to get access either, simply remove this package with
sudo apt remove openssh-server
and either reboot or stop the sshd service with
systemctl stop sshd
and kill any connection that may still be active with:
killall sshd
Manually removing an SSH user is more complicated and requires much more information than you gave us, but these questions might be helpful:
- How to log off an user from SSH?
- What is a user-friendly way to log off other users?
- How to delete useless ssh key on my server(Ubuntu server 16.04) and generate new one
answered Dec 12 at 7:35
dessert
21.8k55896
With dpkg -s openssh-server | grep Status returning installed you have confirmed that someone installed an SSH server on your machine, as this package is not installed by default in any of the current Ubuntu releases (see their .manifest files). If you don’t need remote access to your machine and want to make sure nobody else is using ssh to get access either, simply remove this package with
sudo apt remove openssh-server
and either reboot or stop the sshd service with
systemctl stop sshd
and kill any connection that may still be active with:
killall sshd
Manually removing an SSH user is more complicated and requires much more information than you gave us, but these questions might be helpful:
- How to log off an user from SSH?
- What is a user-friendly way to log off other users?
- How to delete useless ssh key on my server(Ubuntu server 16.04) and generate new one
answered Dec 12 at 7:35
dessert
21.8k55896
edited Dec 12 at 12:56
answered Dec 12 at 7:35
dessert
21.8k55896
answered Dec 12 at 7:35
dessert
21.8k55896
answered Dec 12 at 7:35
dessert
21.8k55896
21.8k55896
add a comment |
add a comment |
Codering is a new contributor. Be nice, and check out our Code of Conduct.
Codering is a new contributor. Be nice, and check out our Code of Conduct.
Codering is a new contributor. Be nice, and check out our Code of Conduct.
Codering is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1100156%2fhow-do-i-remove-another-computer-which-has-remote-access-to-my-laptop%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
2
Please edit and add the output of
dpkg -s openssh-server | grep Statusto your question. This checks whether this package is installed on your system, ssh is the way to set up a connection like you describe. If it is installed and you don’t want it to be, simply remove it withsudo apt remove openssh-serverand restart.– dessert
Dec 11 at 22:37
There are plenty of ways to allow remote access to your computer, ranging from standard solutions (like ssh) to secret backdoors. Do you fully trust your friend? If so, ask them to describe what they did and to undo it, they know it much better than any of us could figure out. If not, reinstall your system from scratch, without their help.
– egmont
Dec 11 at 22:48
By the looks of it I am almost certain that it is an openssh-server. I checked and openssh-server is installed. How can I check for the accounts that has access to it? The article at help.ubuntu.com/community/SSH/OpenSSH/Configuring helped allot, but I cant seem to find a way to check for accounts.
– Codering
Dec 11 at 23:10
I don`t want to assume that the openssh-server is in fact the way he gained access to my laptop. I would like to verify it. Also as I am still learning to code and have little to no knowledge of ssh, I think it would make a good exercise to manually remove his account.
– Codering
Dec 11 at 23:44
3
Another option would be to ask your friend what he did to your laptop. Our knowledge is naturally limited.
– WinEunuuchs2Unix
Dec 12 at 2:15