LiveUSB goes without firewall












1















I made a bootable USB to try another linux distribution. When the OS was booted up, I checked iptables and it was all ACCEPT. I suppose it's not safe to use with working internet connection. I may be overcautious but what do other overcautious people do in such a case?










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  • You can configure your protection before you use the internet, but you will need to redo this on each boot.

    – AFH
    Jan 6 at 20:26
















1















I made a bootable USB to try another linux distribution. When the OS was booted up, I checked iptables and it was all ACCEPT. I suppose it's not safe to use with working internet connection. I may be overcautious but what do other overcautious people do in such a case?










share|improve this question























  • You can configure your protection before you use the internet, but you will need to redo this on each boot.

    – AFH
    Jan 6 at 20:26














1












1








1








I made a bootable USB to try another linux distribution. When the OS was booted up, I checked iptables and it was all ACCEPT. I suppose it's not safe to use with working internet connection. I may be overcautious but what do other overcautious people do in such a case?










share|improve this question














I made a bootable USB to try another linux distribution. When the OS was booted up, I checked iptables and it was all ACCEPT. I suppose it's not safe to use with working internet connection. I may be overcautious but what do other overcautious people do in such a case?







security liveusb






share|improve this question













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share|improve this question




share|improve this question










asked Jan 6 at 20:18









AndraAndra

43117




43117













  • You can configure your protection before you use the internet, but you will need to redo this on each boot.

    – AFH
    Jan 6 at 20:26



















  • You can configure your protection before you use the internet, but you will need to redo this on each boot.

    – AFH
    Jan 6 at 20:26

















You can configure your protection before you use the internet, but you will need to redo this on each boot.

– AFH
Jan 6 at 20:26





You can configure your protection before you use the internet, but you will need to redo this on each boot.

– AFH
Jan 6 at 20:26










4 Answers
4






active

oldest

votes


















1














If ufw's installed & ready to go, it might just take a



sudo ufw enable


to get it up & running.






share|improve this answer
























  • In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

    – Andra
    Jan 7 at 18:05











  • No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

    – Xen2050
    Jan 8 at 2:04



















0














It depends on the Linux distro. Mostly they are without root password and sometimes without sshd, so no one will be able to login to this OS. For longer work with such a system you should take care of its security, and always if you install any Internet services (FTP, Samba, sshd, apache2 etc.). If you are behind a router with a firewall and there are no redirected ports you should sleep safe.






share|improve this answer































    0














    Were you to create your alternate Linux distro LiveUSB with Persistence, you would be able to configure it and keep the configuration between reboots using the dedicated storage space in the Persistance LiveUSB. Instructions vary according to your distro, but Ubuntu-derived distros have instructions here and there are generalized multi-distro instructions here.






    share|improve this answer































      0














      My plan to proceed was as follows (in this case, ubuntu):





      1. download appropriate ufw package and put it on an accessible partition (or a usb disk)


      2. unplug the ethernet cable


      3. put the hardware WiFi switch in off position

      4. load the OS from the USB stick

      5. get ufw to work:

        5.1. run sudo ufw enable in terminal
        if I don't get "Firewall is active and enabled on system startup", then:

        5.2. install ufw using the package from (1)


      6. run sudo iptables -L to be sure it is by default DROP for input and forward

      7. plug in the cable / switch on wifi


      8. repeat all this when booting anew






      share|improve this answer

























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        4 Answers
        4






        active

        oldest

        votes








        4 Answers
        4






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes









        1














        If ufw's installed & ready to go, it might just take a



        sudo ufw enable


        to get it up & running.






        share|improve this answer
























        • In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

          – Andra
          Jan 7 at 18:05











        • No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

          – Xen2050
          Jan 8 at 2:04
















        1














        If ufw's installed & ready to go, it might just take a



        sudo ufw enable


        to get it up & running.






        share|improve this answer
























        • In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

          – Andra
          Jan 7 at 18:05











        • No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

          – Xen2050
          Jan 8 at 2:04














        1












        1








        1







        If ufw's installed & ready to go, it might just take a



        sudo ufw enable


        to get it up & running.






        share|improve this answer













        If ufw's installed & ready to go, it might just take a



        sudo ufw enable


        to get it up & running.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 6 at 21:11









        Xen2050Xen2050

        10.5k31536




        10.5k31536













        • In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

          – Andra
          Jan 7 at 18:05











        • No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

          – Xen2050
          Jan 8 at 2:04



















        • In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

          – Andra
          Jan 7 at 18:05











        • No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

          – Xen2050
          Jan 8 at 2:04

















        In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

        – Andra
        Jan 7 at 18:05





        In this case, it was really all to do. Sorry, I wrote my own answer after considering which precautions I'd take.

        – Andra
        Jan 7 at 18:05













        No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

        – Xen2050
        Jan 8 at 2:04





        No problem, if this (or any) answers were useful, then feel free to give them an upvote, and select one as correct (even if it's your own, though you don't get any rep points for selecting your own)

        – Xen2050
        Jan 8 at 2:04













        0














        It depends on the Linux distro. Mostly they are without root password and sometimes without sshd, so no one will be able to login to this OS. For longer work with such a system you should take care of its security, and always if you install any Internet services (FTP, Samba, sshd, apache2 etc.). If you are behind a router with a firewall and there are no redirected ports you should sleep safe.






        share|improve this answer




























          0














          It depends on the Linux distro. Mostly they are without root password and sometimes without sshd, so no one will be able to login to this OS. For longer work with such a system you should take care of its security, and always if you install any Internet services (FTP, Samba, sshd, apache2 etc.). If you are behind a router with a firewall and there are no redirected ports you should sleep safe.






          share|improve this answer


























            0












            0








            0







            It depends on the Linux distro. Mostly they are without root password and sometimes without sshd, so no one will be able to login to this OS. For longer work with such a system you should take care of its security, and always if you install any Internet services (FTP, Samba, sshd, apache2 etc.). If you are behind a router with a firewall and there are no redirected ports you should sleep safe.






            share|improve this answer













            It depends on the Linux distro. Mostly they are without root password and sometimes without sshd, so no one will be able to login to this OS. For longer work with such a system you should take care of its security, and always if you install any Internet services (FTP, Samba, sshd, apache2 etc.). If you are behind a router with a firewall and there are no redirected ports you should sleep safe.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Jan 6 at 20:36









            pbiespbies

            1,55911217




            1,55911217























                0














                Were you to create your alternate Linux distro LiveUSB with Persistence, you would be able to configure it and keep the configuration between reboots using the dedicated storage space in the Persistance LiveUSB. Instructions vary according to your distro, but Ubuntu-derived distros have instructions here and there are generalized multi-distro instructions here.






                share|improve this answer




























                  0














                  Were you to create your alternate Linux distro LiveUSB with Persistence, you would be able to configure it and keep the configuration between reboots using the dedicated storage space in the Persistance LiveUSB. Instructions vary according to your distro, but Ubuntu-derived distros have instructions here and there are generalized multi-distro instructions here.






                  share|improve this answer


























                    0












                    0








                    0







                    Were you to create your alternate Linux distro LiveUSB with Persistence, you would be able to configure it and keep the configuration between reboots using the dedicated storage space in the Persistance LiveUSB. Instructions vary according to your distro, but Ubuntu-derived distros have instructions here and there are generalized multi-distro instructions here.






                    share|improve this answer













                    Were you to create your alternate Linux distro LiveUSB with Persistence, you would be able to configure it and keep the configuration between reboots using the dedicated storage space in the Persistance LiveUSB. Instructions vary according to your distro, but Ubuntu-derived distros have instructions here and there are generalized multi-distro instructions here.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Jan 7 at 19:39









                    K7AAYK7AAY

                    3,76621638




                    3,76621638























                        0














                        My plan to proceed was as follows (in this case, ubuntu):





                        1. download appropriate ufw package and put it on an accessible partition (or a usb disk)


                        2. unplug the ethernet cable


                        3. put the hardware WiFi switch in off position

                        4. load the OS from the USB stick

                        5. get ufw to work:

                          5.1. run sudo ufw enable in terminal
                          if I don't get "Firewall is active and enabled on system startup", then:

                          5.2. install ufw using the package from (1)


                        6. run sudo iptables -L to be sure it is by default DROP for input and forward

                        7. plug in the cable / switch on wifi


                        8. repeat all this when booting anew






                        share|improve this answer






























                          0














                          My plan to proceed was as follows (in this case, ubuntu):





                          1. download appropriate ufw package and put it on an accessible partition (or a usb disk)


                          2. unplug the ethernet cable


                          3. put the hardware WiFi switch in off position

                          4. load the OS from the USB stick

                          5. get ufw to work:

                            5.1. run sudo ufw enable in terminal
                            if I don't get "Firewall is active and enabled on system startup", then:

                            5.2. install ufw using the package from (1)


                          6. run sudo iptables -L to be sure it is by default DROP for input and forward

                          7. plug in the cable / switch on wifi


                          8. repeat all this when booting anew






                          share|improve this answer




























                            0












                            0








                            0







                            My plan to proceed was as follows (in this case, ubuntu):





                            1. download appropriate ufw package and put it on an accessible partition (or a usb disk)


                            2. unplug the ethernet cable


                            3. put the hardware WiFi switch in off position

                            4. load the OS from the USB stick

                            5. get ufw to work:

                              5.1. run sudo ufw enable in terminal
                              if I don't get "Firewall is active and enabled on system startup", then:

                              5.2. install ufw using the package from (1)


                            6. run sudo iptables -L to be sure it is by default DROP for input and forward

                            7. plug in the cable / switch on wifi


                            8. repeat all this when booting anew






                            share|improve this answer















                            My plan to proceed was as follows (in this case, ubuntu):





                            1. download appropriate ufw package and put it on an accessible partition (or a usb disk)


                            2. unplug the ethernet cable


                            3. put the hardware WiFi switch in off position

                            4. load the OS from the USB stick

                            5. get ufw to work:

                              5.1. run sudo ufw enable in terminal
                              if I don't get "Firewall is active and enabled on system startup", then:

                              5.2. install ufw using the package from (1)


                            6. run sudo iptables -L to be sure it is by default DROP for input and forward

                            7. plug in the cable / switch on wifi


                            8. repeat all this when booting anew







                            share|improve this answer














                            share|improve this answer



                            share|improve this answer








                            edited Jan 8 at 11:46

























                            answered Jan 7 at 18:05









                            AndraAndra

                            43117




                            43117






























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