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how to login a remote host using SSH without a password?
wakeonlan from remote hostHow can I set up password-less SSH login?Execute a command on local computer from a connected remote SSH host?Unable to connect to my remote Ubuntu system using SSHRun script on remote machine via telnet (not SSH)how to give user server name instead of ip when connecting through SSH?ssh: connect to host myhostname.ddns.net port 22: Connection refusedStep by Step enable remote login to home ubuntu machine?Mosh and ssh stopped working after connection through VPN channelCannot ssh on boot until I login (Ubuntu 16.04)
SSH server is running at remote host. IP Address of the remote host is known.
Using NMAP command we can see SSH service is running at port 22 which is open.
How to login remote host using ssh client without password?
Example: ssh root@ip_address
How to know the user account details such as the number of users present in that remote host and their usernames ?
hostname command gives us the name of the host. Is there any command to know the username present within a remote host?
How to execute a linux command on a remote machine without logged in to that remote host?
ssh remote-desktop remote-access sshd remote-login
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
bumped to the homepage by Community♦ 3 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
SSH server is running at remote host. IP Address of the remote host is known.
Using NMAP command we can see SSH service is running at port 22 which is open.
How to login remote host using ssh client without password?
Example: ssh root@ip_address
How to know the user account details such as the number of users present in that remote host and their usernames ?
hostname command gives us the name of the host. Is there any command to know the username present within a remote host?
How to execute a linux command on a remote machine without logged in to that remote host?
ssh remote-desktop remote-access sshd remote-login
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
bumped to the homepage by Community♦ 3 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
3
This could be illegal.... so I don't know if it is possible!
– Ubuntu User
Feb 6 '17 at 19:40
add a comment |
SSH server is running at remote host. IP Address of the remote host is known.
Using NMAP command we can see SSH service is running at port 22 which is open.
How to login remote host using ssh client without password?
Example: ssh root@ip_address
How to know the user account details such as the number of users present in that remote host and their usernames ?
hostname command gives us the name of the host. Is there any command to know the username present within a remote host?
How to execute a linux command on a remote machine without logged in to that remote host?
ssh remote-desktop remote-access sshd remote-login
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
SSH server is running at remote host. IP Address of the remote host is known.
Using NMAP command we can see SSH service is running at port 22 which is open.
How to login remote host using ssh client without password?
Example: ssh root@ip_address
How to know the user account details such as the number of users present in that remote host and their usernames ?
hostname command gives us the name of the host. Is there any command to know the username present within a remote host?
How to execute a linux command on a remote machine without logged in to that remote host?
ssh remote-desktop remote-access sshd remote-login
ssh remote-desktop remote-access sshd remote-login
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
asked Feb 6 '17 at 19:36
Dipankar NaluiDipankar Nalui
1891311
1891311
bumped to the homepage by Community♦ 3 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 3 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
3
This could be illegal.... so I don't know if it is possible!
– Ubuntu User
Feb 6 '17 at 19:40
add a comment |
3
This could be illegal.... so I don't know if it is possible!
– Ubuntu User
Feb 6 '17 at 19:40
3
3
This could be illegal.... so I don't know if it is possible!
– Ubuntu User
Feb 6 '17 at 19:40
This could be illegal.... so I don't know if it is possible!
– Ubuntu User
Feb 6 '17 at 19:40
add a comment |
3 Answers
3
active
oldest
votes
You can setup the PKI.
On the host machines you generate your key-pairs. It will prompt you for default location where to store your:
- public key(extension .pub)
- private key(no extension)
Usually it is in ~/.ssh/ folder.
ssh-keygen -t rsa
And use ssh copy-id to update your server authorized_keys
ssh-copy-id root@ip_of_the server
Alternatively, you can append the contents of your public key ~/.ssh/id_rsa.pub to the remote host's ~/.ssh/authorized_keys
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
You will need the root password for thessh-copy-idcommand.
– user68186
Feb 6 '17 at 19:45
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
2
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
|
show 7 more comments
With login remote host using ssh client without password, I think you can check problems as:
- Permission of file ~/.ssh/authorized_keys after you create and add key id_rsa.pub to file(Ex: User root --> file /root/.ssh/authorized_keys), but when you create file maybe it have permission is:
-rw-rw-r-- 1 test1 test1 4 Aug 9 11:19 authorized_keys. After you change permission 600 for file with command:chmod -R 600 authorized_keys.
Check permission user root in file /etc/sudoers. You can add option NOPASSWD for user or group in file with line:
- For a single user:
root ALL=NOPASSWD: ALL - For a group :
%supergroup ALL=(ALL) NOPASSWD:ALL
In Firewall I think you can open and allow IP Remote to port 22.
ufw allow from [IP Remote] to any port 22
or
ufw allow from any to any port 22
I hope it help you remote without password.
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
add a comment |
You should not ask these questions here, log in without permissions are forbidden. Nevertheless at the level of your question is quite very beginner level so hacking would out of discussion :)
answered Feb 25 at 19:10
AlpyAlpy
36516
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
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You can setup the PKI.
On the host machines you generate your key-pairs. It will prompt you for default location where to store your:
- public key(extension .pub)
- private key(no extension)
Usually it is in ~/.ssh/ folder.
ssh-keygen -t rsa
And use ssh copy-id to update your server authorized_keys
ssh-copy-id root@ip_of_the server
Alternatively, you can append the contents of your public key ~/.ssh/id_rsa.pub to the remote host's ~/.ssh/authorized_keys
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
You will need the root password for thessh-copy-idcommand.
– user68186
Feb 6 '17 at 19:45
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
2
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
|
show 7 more comments
You can setup the PKI.
On the host machines you generate your key-pairs. It will prompt you for default location where to store your:
- public key(extension .pub)
- private key(no extension)
Usually it is in ~/.ssh/ folder.
ssh-keygen -t rsa
And use ssh copy-id to update your server authorized_keys
ssh-copy-id root@ip_of_the server
Alternatively, you can append the contents of your public key ~/.ssh/id_rsa.pub to the remote host's ~/.ssh/authorized_keys
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
You will need the root password for thessh-copy-idcommand.
– user68186
Feb 6 '17 at 19:45
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
2
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
|
show 7 more comments
You can setup the PKI.
On the host machines you generate your key-pairs. It will prompt you for default location where to store your:
- public key(extension .pub)
- private key(no extension)
Usually it is in ~/.ssh/ folder.
ssh-keygen -t rsa
And use ssh copy-id to update your server authorized_keys
ssh-copy-id root@ip_of_the server
Alternatively, you can append the contents of your public key ~/.ssh/id_rsa.pub to the remote host's ~/.ssh/authorized_keys
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
You can setup the PKI.
On the host machines you generate your key-pairs. It will prompt you for default location where to store your:
- public key(extension .pub)
- private key(no extension)
Usually it is in ~/.ssh/ folder.
ssh-keygen -t rsa
And use ssh copy-id to update your server authorized_keys
ssh-copy-id root@ip_of_the server
Alternatively, you can append the contents of your public key ~/.ssh/id_rsa.pub to the remote host's ~/.ssh/authorized_keys
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
edited Feb 6 '17 at 19:49
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
answered Feb 6 '17 at 19:41
fugitivefugitive
730413
730413
You will need the root password for thessh-copy-idcommand.
– user68186
Feb 6 '17 at 19:45
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
2
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
|
show 7 more comments
You will need the root password for thessh-copy-idcommand.
– user68186
Feb 6 '17 at 19:45
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
2
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
You will need the root password for the
ssh-copy-id command.– user68186
Feb 6 '17 at 19:45
You will need the root password for the
ssh-copy-id command.– user68186
Feb 6 '17 at 19:45
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
@user68186 Yep. I assumed he has the access to the remote.
– fugitive
Feb 6 '17 at 19:51
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
sorry @fugitive I do not know the root password of remote host.
– Dipankar Nalui
Feb 6 '17 at 20:06
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
@DipankarNalui then - it is not possible. At least in no legitimate way.
– fugitive
Feb 6 '17 at 20:15
2
2
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
@DipankarNalui The content of your question and your comments here appears like you are trying to hack into s computer where you don't have any connection. That is against the law. We don't support breaking the law or any other unethical activity on this site. You would have to communicate with the owner of the site and get the credentials from them to have access. If they don't give it to you, you should respect their property the same way you would like your home or real property to be respected.
– L. D. James
Feb 6 '17 at 20:59
|
show 7 more comments
With login remote host using ssh client without password, I think you can check problems as:
- Permission of file ~/.ssh/authorized_keys after you create and add key id_rsa.pub to file(Ex: User root --> file /root/.ssh/authorized_keys), but when you create file maybe it have permission is:
-rw-rw-r-- 1 test1 test1 4 Aug 9 11:19 authorized_keys. After you change permission 600 for file with command:chmod -R 600 authorized_keys.
Check permission user root in file /etc/sudoers. You can add option NOPASSWD for user or group in file with line:
- For a single user:
root ALL=NOPASSWD: ALL - For a group :
%supergroup ALL=(ALL) NOPASSWD:ALL
In Firewall I think you can open and allow IP Remote to port 22.
ufw allow from [IP Remote] to any port 22
or
ufw allow from any to any port 22
I hope it help you remote without password.
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
add a comment |
With login remote host using ssh client without password, I think you can check problems as:
- Permission of file ~/.ssh/authorized_keys after you create and add key id_rsa.pub to file(Ex: User root --> file /root/.ssh/authorized_keys), but when you create file maybe it have permission is:
-rw-rw-r-- 1 test1 test1 4 Aug 9 11:19 authorized_keys. After you change permission 600 for file with command:chmod -R 600 authorized_keys.
Check permission user root in file /etc/sudoers. You can add option NOPASSWD for user or group in file with line:
- For a single user:
root ALL=NOPASSWD: ALL - For a group :
%supergroup ALL=(ALL) NOPASSWD:ALL
In Firewall I think you can open and allow IP Remote to port 22.
ufw allow from [IP Remote] to any port 22
or
ufw allow from any to any port 22
I hope it help you remote without password.
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
add a comment |
With login remote host using ssh client without password, I think you can check problems as:
- Permission of file ~/.ssh/authorized_keys after you create and add key id_rsa.pub to file(Ex: User root --> file /root/.ssh/authorized_keys), but when you create file maybe it have permission is:
-rw-rw-r-- 1 test1 test1 4 Aug 9 11:19 authorized_keys. After you change permission 600 for file with command:chmod -R 600 authorized_keys.
Check permission user root in file /etc/sudoers. You can add option NOPASSWD for user or group in file with line:
- For a single user:
root ALL=NOPASSWD: ALL - For a group :
%supergroup ALL=(ALL) NOPASSWD:ALL
In Firewall I think you can open and allow IP Remote to port 22.
ufw allow from [IP Remote] to any port 22
or
ufw allow from any to any port 22
I hope it help you remote without password.
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
With login remote host using ssh client without password, I think you can check problems as:
- Permission of file ~/.ssh/authorized_keys after you create and add key id_rsa.pub to file(Ex: User root --> file /root/.ssh/authorized_keys), but when you create file maybe it have permission is:
-rw-rw-r-- 1 test1 test1 4 Aug 9 11:19 authorized_keys. After you change permission 600 for file with command:chmod -R 600 authorized_keys.
Check permission user root in file /etc/sudoers. You can add option NOPASSWD for user or group in file with line:
- For a single user:
root ALL=NOPASSWD: ALL - For a group :
%supergroup ALL=(ALL) NOPASSWD:ALL
In Firewall I think you can open and allow IP Remote to port 22.
ufw allow from [IP Remote] to any port 22
or
ufw allow from any to any port 22
I hope it help you remote without password.
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
edited Aug 9 '17 at 6:16
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
answered Aug 9 '17 at 6:11
TannettoTannetto
40137
40137
add a comment |
add a comment |
You should not ask these questions here, log in without permissions are forbidden. Nevertheless at the level of your question is quite very beginner level so hacking would out of discussion :)
answered Feb 25 at 19:10
AlpyAlpy
36516
add a comment |
You should not ask these questions here, log in without permissions are forbidden. Nevertheless at the level of your question is quite very beginner level so hacking would out of discussion :)
answered Feb 25 at 19:10
AlpyAlpy
36516
add a comment |
You should not ask these questions here, log in without permissions are forbidden. Nevertheless at the level of your question is quite very beginner level so hacking would out of discussion :)
answered Feb 25 at 19:10
AlpyAlpy
36516
You should not ask these questions here, log in without permissions are forbidden. Nevertheless at the level of your question is quite very beginner level so hacking would out of discussion :)
answered Feb 25 at 19:10
AlpyAlpy
36516
answered Feb 25 at 19:10
AlpyAlpy
36516
answered Feb 25 at 19:10
AlpyAlpy
36516
answered Feb 25 at 19:10
AlpyAlpy
36516
36516
add a comment |
add a comment |
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3
This could be illegal.... so I don't know if it is possible!
– Ubuntu User
Feb 6 '17 at 19:40