cannot log in to the server after changing SSH port












3















I am using putty to connect to my Ubuntu 16.04 VPS.



I decided to change the default SSH port from 22 to 443.
I did this changing the line 



Port 22


in /etc/ssh/sshd_config



to Port 443



Now when I am trying to connect to the server using port 443 I get the error saying "Server unexpectedly closed network connection"



When I try to connect to the server using port 22 I get the error saying "Network error: Connection refused"



The server is up and running I just cannot connect to it anymore, is there anyway to fix this?






ubuntu networking ssh linux-networking port







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    3















    I am using putty to connect to my Ubuntu 16.04 VPS.



    I decided to change the default SSH port from 22 to 443.
    I did this changing the line 



    Port 22


    in /etc/ssh/sshd_config



    to Port 443



    Now when I am trying to connect to the server using port 443 I get the error saying "Server unexpectedly closed network connection"



    When I try to connect to the server using port 22 I get the error saying "Network error: Connection refused"



    The server is up and running I just cannot connect to it anymore, is there anyway to fix this?






    ubuntu networking ssh linux-networking port







    share|improve this question







    New contributor




    shiu'sho is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      3












      3








      3








      I am using putty to connect to my Ubuntu 16.04 VPS.



      I decided to change the default SSH port from 22 to 443.
      I did this changing the line 



      Port 22


      in /etc/ssh/sshd_config



      to Port 443



      Now when I am trying to connect to the server using port 443 I get the error saying "Server unexpectedly closed network connection"



      When I try to connect to the server using port 22 I get the error saying "Network error: Connection refused"



      The server is up and running I just cannot connect to it anymore, is there anyway to fix this?






      ubuntu networking ssh linux-networking port







      share|improve this question







      New contributor




      shiu'sho is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I am using putty to connect to my Ubuntu 16.04 VPS.



      I decided to change the default SSH port from 22 to 443.
      I did this changing the line 



      Port 22


      in /etc/ssh/sshd_config



      to Port 443



      Now when I am trying to connect to the server using port 443 I get the error saying "Server unexpectedly closed network connection"



      When I try to connect to the server using port 22 I get the error saying "Network error: Connection refused"



      The server is up and running I just cannot connect to it anymore, is there anyway to fix this?






      ubuntu networking ssh linux-networking port




      ubuntu networking ssh linux-networking port






      share|improve this question







      New contributor




      shiu'sho is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      shiu'sho is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






      New contributor




      shiu'sho is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 9 hours ago









      shiu'shoshiu'sho

      161




      161




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      New contributor





      shiu'sho is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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      Check out our Code of Conduct.






















          1 Answer
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          is there anyway to fix this?





          • Use the system console (out of band connection) if available.

          • Use the VPS recovery boot to mount the VPS disk and then edit the sshd_config file to reset the port to 22 from 443.


          Less optimally




          • Boot a new VPS instance, configure as per the first instance using your configuration management tools and recover from backups.






          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            5















            is there anyway to fix this?





            • Use the system console (out of band connection) if available.

            • Use the VPS recovery boot to mount the VPS disk and then edit the sshd_config file to reset the port to 22 from 443.


            Less optimally




            • Boot a new VPS instance, configure as per the first instance using your configuration management tools and recover from backups.






            share|improve this answer




























              5















              is there anyway to fix this?





              • Use the system console (out of band connection) if available.

              • Use the VPS recovery boot to mount the VPS disk and then edit the sshd_config file to reset the port to 22 from 443.


              Less optimally




              • Boot a new VPS instance, configure as per the first instance using your configuration management tools and recover from backups.






              share|improve this answer


























                5












                5








                5








                is there anyway to fix this?





                • Use the system console (out of band connection) if available.

                • Use the VPS recovery boot to mount the VPS disk and then edit the sshd_config file to reset the port to 22 from 443.


                Less optimally




                • Boot a new VPS instance, configure as per the first instance using your configuration management tools and recover from backups.






                share|improve this answer














                is there anyway to fix this?





                • Use the system console (out of band connection) if available.

                • Use the VPS recovery boot to mount the VPS disk and then edit the sshd_config file to reset the port to 22 from 443.


                Less optimally




                • Boot a new VPS instance, configure as per the first instance using your configuration management tools and recover from backups.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 8 hours ago









                IainIain

                105k13164258




                105k13164258






















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