UFW deny all incoming except SSH The Next CEO of Stack Overflowwhat's wrong with my ufw configuration on Ubuntu server?SSH freeze when UFW is enabledsetting up ufw for a website, I want to to disallow everything except ssh, e-mail, and httpUFW/IPTables: after setting default outgoing deny, and port 80 outgoing allow, curl still doesn't workUFW/IPTables: how to securely allow authenticated git access with githubLocked myself out of SSH with UFWufw seems to block all incoming connections when defaulting to block outgoingufw deny from ip doesn't seem to be workingEdge case UFW setup

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UFW deny all incoming except SSH



The Next CEO of Stack Overflowwhat's wrong with my ufw configuration on Ubuntu server?SSH freeze when UFW is enabledsetting up ufw for a website, I want to to disallow everything except ssh, e-mail, and httpUFW/IPTables: after setting default outgoing deny, and port 80 outgoing allow, curl still doesn't workUFW/IPTables: how to securely allow authenticated git access with githubLocked myself out of SSH with UFWufw seems to block all incoming connections when defaulting to block outgoingufw deny from ip doesn't seem to be workingEdge case UFW setup










2















I am about to configure firewall with UFW. I am logged in over SSH so I don't know if the terminal will be locked out as soon as I do:



 sudo ufw default deny incoming


If so, how can I deny all incoming (lock the whole thing down) except SSH and do it all in the same command?










share|improve this question




























    2















    I am about to configure firewall with UFW. I am logged in over SSH so I don't know if the terminal will be locked out as soon as I do:



     sudo ufw default deny incoming


    If so, how can I deny all incoming (lock the whole thing down) except SSH and do it all in the same command?










    share|improve this question


























      2












      2








      2


      1






      I am about to configure firewall with UFW. I am logged in over SSH so I don't know if the terminal will be locked out as soon as I do:



       sudo ufw default deny incoming


      If so, how can I deny all incoming (lock the whole thing down) except SSH and do it all in the same command?










      share|improve this question
















      I am about to configure firewall with UFW. I am logged in over SSH so I don't know if the terminal will be locked out as soon as I do:



       sudo ufw default deny incoming


      If so, how can I deny all incoming (lock the whole thing down) except SSH and do it all in the same command?







      iptables ufw






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 3 '14 at 0:35









      HopelessN00b

      48.5k24116194




      48.5k24116194










      asked Dec 2 '14 at 20:54









      ZuriarZuriar

      12614




      12614




















          1 Answer
          1






          active

          oldest

          votes


















          3














          In my experience, despite the warnings, enabling UFW does not lock out the current session. By default, UFW will block all incoming. To allow SSH, use:



          sudo ufw allow OpenSSH


          You can also use the limit option (note that port 22 is the default SSH port):



          sudo ufw limit 22/tcp


          To enable UFW use:



          sudo ufw enable





          share|improve this answer




















          • 1





            You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

            – Tom O'Connor
            Dec 3 '14 at 9:55











          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3














          In my experience, despite the warnings, enabling UFW does not lock out the current session. By default, UFW will block all incoming. To allow SSH, use:



          sudo ufw allow OpenSSH


          You can also use the limit option (note that port 22 is the default SSH port):



          sudo ufw limit 22/tcp


          To enable UFW use:



          sudo ufw enable





          share|improve this answer




















          • 1





            You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

            – Tom O'Connor
            Dec 3 '14 at 9:55















          3














          In my experience, despite the warnings, enabling UFW does not lock out the current session. By default, UFW will block all incoming. To allow SSH, use:



          sudo ufw allow OpenSSH


          You can also use the limit option (note that port 22 is the default SSH port):



          sudo ufw limit 22/tcp


          To enable UFW use:



          sudo ufw enable





          share|improve this answer




















          • 1





            You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

            – Tom O'Connor
            Dec 3 '14 at 9:55













          3












          3








          3







          In my experience, despite the warnings, enabling UFW does not lock out the current session. By default, UFW will block all incoming. To allow SSH, use:



          sudo ufw allow OpenSSH


          You can also use the limit option (note that port 22 is the default SSH port):



          sudo ufw limit 22/tcp


          To enable UFW use:



          sudo ufw enable





          share|improve this answer















          In my experience, despite the warnings, enabling UFW does not lock out the current session. By default, UFW will block all incoming. To allow SSH, use:



          sudo ufw allow OpenSSH


          You can also use the limit option (note that port 22 is the default SSH port):



          sudo ufw limit 22/tcp


          To enable UFW use:



          sudo ufw enable






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited yesterday









          Nick T

          15610




          15610










          answered Dec 2 '14 at 23:19









          PaulPaul

          1,17531323




          1,17531323







          • 1





            You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

            – Tom O'Connor
            Dec 3 '14 at 9:55












          • 1





            You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

            – Tom O'Connor
            Dec 3 '14 at 9:55







          1




          1





          You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

          – Tom O'Connor
          Dec 3 '14 at 9:55





          You can also use the at command to issue a "sudo disable UFW" at +5 minutes, so if you do get locked out, you can wait 5 minutes, and be allowed back in ;)

          – Tom O'Connor
          Dec 3 '14 at 9:55

















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