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Groups > linux.debian.user > #200558

Re: Why does Debian allow all incoming traffic by default

From Jonathan Dowland <jmtd@debian.org>
Newsgroups linux.debian.user
Subject Re: Why does Debian allow all incoming traffic by default
Date 2018-09-24 20:50 +0200
Message-ID <wBE5H-IS-7@gated-at.bofh.it> (permalink)
References <wAjZo-39S-1@gated-at.bofh.it> <wAtcm-8kA-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Sep 21, 2018 at 08:55:21AM -0400, Henning Follmann wrote:
>Run a netstat -t -l and you will see there is nothing listening. So
>what is the point of running a firewall?

There's plenty of reasons to run a firewall even if you think you are
not running any services. You may be mistaken; a service may be started
without your knowledge, either in error or as an unintended consequence
of something you have done (install/run another piece of software); or,
a third party may have acquired access to your machine in some way and
attempted to run a backdoor process to listen for incoming connections.


-- 

⢀⣴⠾⠻⢶⣦⠀
⣾⠁⢠⠒⠀⣿⡁ Jonathan Dowland
⢿⡄⠘⠷⠚⠋⠀ https://jmtd.net
⠈⠳⣄⠀⠀⠀⠀ Please do not CC me, I am subscribed to the list.

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Thread

Why does Debian allow all incoming traffic by default Subhadip Ghosh <subhadip.sky@gmail.com> - 2018-09-21 05:10 +0200
  Re: Why does Debian allow all incoming traffic by default Roberto C. Sánchez <roberto@debian.org> - 2018-09-21 05:30 +0200
    Re: Why does Debian allow all incoming traffic by default Subhadip Ghosh <subhadip.sky@gmail.com> - 2018-09-21 05:40 +0200
      Re: Why does Debian allow all incoming traffic by default Roberto C. Sánchez <roberto@debian.org> - 2018-09-21 05:50 +0200
        Re: Why does Debian allow all incoming traffic by default deloptes <deloptes@gmail.com> - 2018-09-21 07:10 +0200
        Re: Why does Debian allow all incoming traffic by default Subhadip Ghosh <subhadip.sky@gmail.com> - 2018-09-21 19:40 +0200
      Re: Why does Debian allow all incoming traffic by default Dan Ritter <dsr@randomstring.org> - 2018-09-21 19:10 +0200
        Re: Why does Debian allow all incoming traffic by default Subhadip Ghosh <subhadip.sky@gmail.com> - 2018-09-21 19:40 +0200
          Re: Why does Debian allow all incoming traffic by default deloptes <deloptes@gmail.com> - 2018-09-21 20:00 +0200
            Re: Why does Debian allow all incoming traffic by default Subhadip Ghosh <subhadip.sky@gmail.com> - 2018-09-21 20:10 +0200
              Re: Why does Debian allow all incoming traffic by default Brian <ad44@cityscape.co.uk> - 2018-09-21 21:40 +0200
          Re: Why does Debian allow all incoming traffic by default David Wright <deblis@lionunicorn.co.uk> - 2018-09-21 21:50 +0200
          Re: Why does Debian allow all incoming traffic by default mick crane <mick.crane@gmail.com> - 2018-09-23 01:10 +0200
            Re: Why does Debian allow all incoming traffic by default Brian <ad44@cityscape.co.uk> - 2018-09-23 20:00 +0200
              Re: Why does Debian allow all incoming traffic by default Joe <joe@jretrading.com> - 2018-09-23 23:00 +0200
                Re: Why does Debian allow all incoming traffic by default Brian <ad44@cityscape.co.uk> - 2018-09-24 00:00 +0200
        Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 09:40 +0200
          Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-22 11:20 +0200
            Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 13:00 +0200
              Re: Why does Debian allow all incoming traffic by default Dan Ritter <dsr@randomstring.org> - 2018-09-22 13:40 +0200
                Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 17:00 +0200
                Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-22 20:20 +0200
                Re: Why does Debian allow all incoming traffic by default Richard Hector <richard@walnut.gen.nz> - 2018-09-24 05:20 +0200
                Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-24 05:30 +0200
                Re: Why does Debian allow all incoming traffic by default <tomas@tuxteam.de> - 2018-09-24 09:10 +0200
                Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-24 11:00 +0200
                Re: Why does Debian allow all incoming traffic by default <tomas@tuxteam.de> - 2018-09-24 11:40 +0200
                Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-24 14:20 +0200
                Re: Why does Debian allow all incoming traffic by default Dan Ritter <dsr@randomstring.org> - 2018-09-22 20:30 +0200
                Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-22 22:20 +0200
                Re: Why does Debian allow all incoming traffic by default <tomas@tuxteam.de> - 2018-09-22 22:40 +0200
                Re: Why does Debian allow all incoming traffic by default Gene Heskett <gheskett@shentel.net> - 2018-09-22 23:20 +0200
                Re: Why does Debian allow all incoming traffic by default Simon Kengelbacher <simon.kengelbacher@mail.ch> - 2018-09-22 23:50 +0200
                Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-23 00:00 +0200
                Re: Why does Debian allow all incoming traffic by default Simon Kengelbacher <simon.kengelbacher@mail.ch> - 2018-09-23 00:20 +0200
                SSH X forwarding going awry (Was: Why does Debian allow all incoming  traffic by default) Étienne Mollier <etienne.mollier@mailoo.org> - 2018-09-23 11:40 +0200
                Re: SSH X forwarding going awry FIXED (Was: Why does Debian allow all incoming traffic by default) Gene Heskett <gheskett@shentel.net> - 2018-09-23 16:10 +0200
                Re: SSH X forwarding going awry FIXED (Was: Why does Debian allow  all incoming traffic by default) Joe <joe@jretrading.com> - 2018-09-23 23:00 +0200
                Re: SSH X forwarding going awry FIXED (Was: Why does Debian allow all incoming traffic by default) Gene Heskett <gheskett@shentel.net> - 2018-09-24 04:50 +0200
                Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-24 21:00 +0200
                Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-23 00:00 +0200
            Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-24 21:00 +0200
              Re: Why does Debian allow all incoming traffic by default Joe <joe@jretrading.com> - 2018-09-24 21:30 +0200
                Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-26 15:50 +0200
                Re: Why does Debian allow all incoming traffic by default Joe <joe@jretrading.com> - 2018-09-26 17:10 +0200
                Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-26 19:30 +0200
          Re: Why does Debian allow all incoming traffic by default Dan Purgert <dan@djph.net> - 2018-09-22 15:50 +0200
            Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 16:50 +0200
        Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-24 20:50 +0200
  Re: Why does Debian allow all incoming traffic by default Henning Follmann <hfollmann@itcfollmann.com> - 2018-09-21 15:00 +0200
    Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-21 18:30 +0200
      Re: Why does Debian allow all incoming traffic by default Brian <ad44@cityscape.co.uk> - 2018-09-21 20:20 +0200
        Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-21 20:40 +0200
          Re: Why does Debian allow all incoming traffic by default Brian <ad44@cityscape.co.uk> - 2018-09-21 21:10 +0200
          Re: Why does Debian allow all incoming traffic by default deloptes <deloptes@gmail.com> - 2018-09-21 23:20 +0200
            Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-21 23:40 +0200
              Re: Why does Debian allow all incoming traffic by default Dan Purgert <dan@djph.net> - 2018-09-22 00:10 +0200
                Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-22 09:10 +0200
                Re: Why does Debian allow all incoming traffic by default Dan Purgert <dan@djph.net> - 2018-09-22 15:50 +0200
          Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 09:50 +0200
            Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-22 12:00 +0200
              Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 13:00 +0200
                Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-22 13:30 +0200
                Re: Why does Debian allow all incoming traffic by default <tomas@tuxteam.de> - 2018-09-22 22:00 +0200
                Re: Why does Debian allow all incoming traffic by default Stefan Monnier <monnier@iro.umontreal.ca> - 2018-09-22 22:20 +0200
                Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 23:40 +0200
          Re: Why does Debian allow all incoming traffic by default Henning Follmann <hfollmann@itcfollmann.com> - 2018-09-22 12:10 +0200
            Re: Why does Debian allow all incoming traffic by default Reco <recoverym4n@gmail.com> - 2018-09-22 12:40 +0200
            Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 13:10 +0200
    netstat (was: Re: Why does Debian allow all incoming traffic by default) rhkramer@gmail.com - 2018-09-21 20:00 +0200
      Re: netstat Reco <recoverym4n@gmail.com> - 2018-09-21 20:20 +0200
        Re: netstat rhkramer@gmail.com - 2018-09-22 20:50 +0200
    Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-24 20:50 +0200
      Re: Why does Debian allow all incoming traffic by default Henning Follmann <hfollmann@itcfollmann.com> - 2018-09-24 21:30 +0200
        Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-26 15:50 +0200
  Re: Why does Debian allow all incoming traffic by default Pablo Álvarez Córdoba <pabloalvarezcordoba@protonmail.ch> - 2018-09-21 18:30 +0200
    Re: Why does Debian allow all incoming traffic by default Subhadip Ghosh <subhadip.sky@gmail.com> - 2018-09-21 19:30 +0200
  Re: Why does Debian allow all incoming traffic by default songbird <songbird@anthive.com> - 2018-09-22 00:10 +0200
    Re: Why does Debian allow all incoming traffic by default Joe <joe@jretrading.com> - 2018-09-22 09:40 +0200
      Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 10:40 +0200
        Re: Why does Debian allow all incoming traffic by default Joe <joe@jretrading.com> - 2018-09-22 13:20 +0200
          Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-22 17:10 +0200
            Re: Why does Debian allow all incoming traffic by default Joe <joe@jretrading.com> - 2018-09-23 10:50 +0200
              Re: Why does Debian allow all incoming traffic by default Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-09-27 14:00 +0200
    Re: Why does Debian allow all incoming traffic by default Jonathan Dowland <jmtd@debian.org> - 2018-09-24 20:50 +0200

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