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?










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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?










    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?










      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






      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.
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      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.
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          2 Answers
          2






          active

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          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































            0














            Check if any web server is running with an active https site.



            Should that be the case, stop the web server and restart the ssh demon.





            share























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              2 Answers
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              2 Answers
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              active

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              active

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              active

              oldest

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              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 9 hours ago









                  IainIain

                  105k13164258




                  105k13164258

























                      0














                      Check if any web server is running with an active https site.



                      Should that be the case, stop the web server and restart the ssh demon.





                      share




























                        0














                        Check if any web server is running with an active https site.



                        Should that be the case, stop the web server and restart the ssh demon.





                        share


























                          0












                          0








                          0







                          Check if any web server is running with an active https site.



                          Should that be the case, stop the web server and restart the ssh demon.





                          share













                          Check if any web server is running with an active https site.



                          Should that be the case, stop the web server and restart the ssh demon.






                          share











                          share


                          share










                          answered 2 mins ago









                          PaoloPaolo

                          262111




                          262111






















                              shiu'sho is a new contributor. Be nice, and check out our Code of Conduct.










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