listening port with netcat not working












0















I am trying to listen to port 8080 using netcat. It was working fine, suddenly I an getting this. Any idea?




root@kali:~# nc -vv -l -p 8080
retrying local 0.0.0.0:8080 : Address already in use
retrying local 0.0.0.0:8080 : Address already in use
retrying local 0.0.0.0:8080 : Address already in use
retrying local 0.0.0.0:8080 : Address already in use









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migrated from security.stackexchange.com Jan 13 at 21:48


This question came from our site for information security professionals.























    0















    I am trying to listen to port 8080 using netcat. It was working fine, suddenly I an getting this. Any idea?




    root@kali:~# nc -vv -l -p 8080
    retrying local 0.0.0.0:8080 : Address already in use
    retrying local 0.0.0.0:8080 : Address already in use
    retrying local 0.0.0.0:8080 : Address already in use
    retrying local 0.0.0.0:8080 : Address already in use









    share|improve this question













    migrated from security.stackexchange.com Jan 13 at 21:48


    This question came from our site for information security professionals.





















      0












      0








      0








      I am trying to listen to port 8080 using netcat. It was working fine, suddenly I an getting this. Any idea?




      root@kali:~# nc -vv -l -p 8080
      retrying local 0.0.0.0:8080 : Address already in use
      retrying local 0.0.0.0:8080 : Address already in use
      retrying local 0.0.0.0:8080 : Address already in use
      retrying local 0.0.0.0:8080 : Address already in use









      share|improve this question














      I am trying to listen to port 8080 using netcat. It was working fine, suddenly I an getting this. Any idea?




      root@kali:~# nc -vv -l -p 8080
      retrying local 0.0.0.0:8080 : Address already in use
      retrying local 0.0.0.0:8080 : Address already in use
      retrying local 0.0.0.0:8080 : Address already in use
      retrying local 0.0.0.0:8080 : Address already in use






      netcat






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 9 at 20:31









      Rahi RRahi R

      1033




      1033




      migrated from security.stackexchange.com Jan 13 at 21:48


      This question came from our site for information security professionals.









      migrated from security.stackexchange.com Jan 13 at 21:48


      This question came from our site for information security professionals.
























          3 Answers
          3






          active

          oldest

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          1














          Some other process is using the port. use ps command to find the list of running processes it would list the list of active processes and also command name. Find and kill the process responsible for using the port 8080.






          share|improve this answer































            2














            TL;DR This means another service is using that port, and only one service at a time can use that port. Could be your web browser, proxy, or a couple other possibilities. You can use netstat -an | grep 8080 to see what else is running on that port.



            Try listening on another port, such as 4444.



            Port 8080 is usually reserved as a sort of secondary HTTP port, or for web proxies (e.g. Burp Suite).






            share|improve this answer
























            • Yes, it was Brup Suite. Thanks a lot

              – Rahi R
              Jan 10 at 0:17



















            0














            Doesn't that mean that this port is currently used, try



            netstat -antp


            to see what is using the port 8080



            using other port may help you to not enter in other problems






            share|improve this answer























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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              1














              Some other process is using the port. use ps command to find the list of running processes it would list the list of active processes and also command name. Find and kill the process responsible for using the port 8080.






              share|improve this answer




























                1














                Some other process is using the port. use ps command to find the list of running processes it would list the list of active processes and also command name. Find and kill the process responsible for using the port 8080.






                share|improve this answer


























                  1












                  1








                  1







                  Some other process is using the port. use ps command to find the list of running processes it would list the list of active processes and also command name. Find and kill the process responsible for using the port 8080.






                  share|improve this answer













                  Some other process is using the port. use ps command to find the list of running processes it would list the list of active processes and also command name. Find and kill the process responsible for using the port 8080.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 10 at 6:41







                  holloman5756
































                      2














                      TL;DR This means another service is using that port, and only one service at a time can use that port. Could be your web browser, proxy, or a couple other possibilities. You can use netstat -an | grep 8080 to see what else is running on that port.



                      Try listening on another port, such as 4444.



                      Port 8080 is usually reserved as a sort of secondary HTTP port, or for web proxies (e.g. Burp Suite).






                      share|improve this answer
























                      • Yes, it was Brup Suite. Thanks a lot

                        – Rahi R
                        Jan 10 at 0:17
















                      2














                      TL;DR This means another service is using that port, and only one service at a time can use that port. Could be your web browser, proxy, or a couple other possibilities. You can use netstat -an | grep 8080 to see what else is running on that port.



                      Try listening on another port, such as 4444.



                      Port 8080 is usually reserved as a sort of secondary HTTP port, or for web proxies (e.g. Burp Suite).






                      share|improve this answer
























                      • Yes, it was Brup Suite. Thanks a lot

                        – Rahi R
                        Jan 10 at 0:17














                      2












                      2








                      2







                      TL;DR This means another service is using that port, and only one service at a time can use that port. Could be your web browser, proxy, or a couple other possibilities. You can use netstat -an | grep 8080 to see what else is running on that port.



                      Try listening on another port, such as 4444.



                      Port 8080 is usually reserved as a sort of secondary HTTP port, or for web proxies (e.g. Burp Suite).






                      share|improve this answer













                      TL;DR This means another service is using that port, and only one service at a time can use that port. Could be your web browser, proxy, or a couple other possibilities. You can use netstat -an | grep 8080 to see what else is running on that port.



                      Try listening on another port, such as 4444.



                      Port 8080 is usually reserved as a sort of secondary HTTP port, or for web proxies (e.g. Burp Suite).







                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered Jan 9 at 20:38









                      SomeGuySomeGuy

                      1214




                      1214













                      • Yes, it was Brup Suite. Thanks a lot

                        – Rahi R
                        Jan 10 at 0:17



















                      • Yes, it was Brup Suite. Thanks a lot

                        – Rahi R
                        Jan 10 at 0:17

















                      Yes, it was Brup Suite. Thanks a lot

                      – Rahi R
                      Jan 10 at 0:17





                      Yes, it was Brup Suite. Thanks a lot

                      – Rahi R
                      Jan 10 at 0:17











                      0














                      Doesn't that mean that this port is currently used, try



                      netstat -antp


                      to see what is using the port 8080



                      using other port may help you to not enter in other problems






                      share|improve this answer




























                        0














                        Doesn't that mean that this port is currently used, try



                        netstat -antp


                        to see what is using the port 8080



                        using other port may help you to not enter in other problems






                        share|improve this answer


























                          0












                          0








                          0







                          Doesn't that mean that this port is currently used, try



                          netstat -antp


                          to see what is using the port 8080



                          using other port may help you to not enter in other problems






                          share|improve this answer













                          Doesn't that mean that this port is currently used, try



                          netstat -antp


                          to see what is using the port 8080



                          using other port may help you to not enter in other problems







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Jan 13 at 21:35







                          Mobrine Hayde





































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