Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use

From	John Ames <commodorejohn@gmail.com>
Newsgroups	comp.os.linux.misc
Subject	Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use
Date	2025-08-20 07:47 -0700
Organization	A noiseless patient Spider
Message-ID	<20250820074700.00002ac1@gmail.com> (permalink)
References	(10 earlier) <107cht8$2foa4$1@dont-email.me> <107dpa1$2sqrk$4@dont-email.me> <107er40$34a0s$1@dont-email.me> <9l0enlx168.ln2@Telcontar.valinor> <10836pc$1m96$11@dont-email.me>

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On Wed, 20 Aug 2025 01:01:32 -0000 (UTC)
Lawrence D’Oliveiro <ldo@nz.invalid> wrote:

> >> What's wrong with a couple of clear examples, plus the detail to
> >> expand on them?
> >>   
> > +1  
> 
> There’s a whole website devoted to that, as I mentioned elsewhere.

That's a fine thing to have in *addition* to proper man pages, but when
you're in a scenario where you don't necessarily have Internet access,
it does you little good - and that makes it especially absurd for core
networking tools to take this approach to documentation.

(It's also a bundle of fun when link rot sets in; wish I could remember
the specifics, but I have at least once been trying to figure out some
freenix package whose man page was literally nothing but a "for actual
documentation, see the project webpage," which had undergone reverse
metamorphosis into a blank Github stub. Can't recall if archive.org
even had the old version or not...)

Thread

Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-05 08:14 +0000
  Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-05 11:22 +0200
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marco Moock <mm@dorfdsl.de> - 2025-08-05 11:34 +0200
  Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-08-05 11:30 -0400
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-05 19:56 +0100
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-06 01:06 +0000
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use John McCue <jmclnx@gmail.com.invalid> - 2025-08-06 01:32 +0000
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-06 04:20 +0000
        Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use c186282 <c186282@nnada.net> - 2025-08-06 01:33 -0400
          Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-06 09:31 +0100
            Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-06 08:56 +0000
              Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-06 10:35 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-06 11:38 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-07 00:06 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-11 11:50 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-11 22:02 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-12 08:39 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-12 10:49 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-12 10:54 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-12 18:47 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-12 23:36 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E. R." <robin_listas@es.invalid> - 2025-08-12 12:08 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use rbowman <bowman@montana.com> - 2025-08-12 19:35 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-12 23:07 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-13 09:47 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-14 00:41 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-19 12:35 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-19 12:18 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-19 15:16 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 01:02 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-27 06:56 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-28 00:50 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-28 09:40 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-29 00:56 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use John Ames <commodorejohn@gmail.com> - 2025-08-29 08:10 -0700
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-29 19:16 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2025-08-30 16:59 +0300
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-30 18:45 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2025-08-31 21:24 +0300
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-09-01 17:02 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-31 03:25 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-30 06:34 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-30 08:39 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-30 08:45 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Harold Stevens <wookie@trixie.localdomain> - 2025-08-30 05:37 -0500
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use John Ames <commodorejohn@gmail.com> - 2025-09-02 09:59 -0700
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Harold Stevens <wookie@aspen.localdomain> - 2025-09-02 12:59 -0500
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Richard Kettlewell <invalid@invalid.invalid> - 2025-08-30 17:48 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 01:01 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 12:52 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:36 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 11:44 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-21 11:34 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 14:36 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-21 14:27 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 21:37 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-22 10:33 +0100
                Manuals [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 12:39 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 01:12 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 01:06 +0000
                Documentation [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 12:26 +0200
                Re: Documentation [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:13 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use John Ames <commodorejohn@gmail.com> - 2025-08-20 07:47 -0700
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:37 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-20 19:25 +0000
                tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 12:04 +0200
                Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-23 12:40 +0000
                Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:40 +0200
                Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:15 +0000
                Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-24 11:22 +0000
                Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-24 22:18 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2025-08-21 12:40 +0300
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Richard Kettlewell <invalid@invalid.invalid> - 2025-08-06 14:21 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-06 16:24 +0100
            Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-06 10:12 +0100
          Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2025-08-07 11:43 +0300
        Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use John McCue <jmclnx@gmail.com.invalid> - 2025-08-06 11:55 +0000
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-06 07:40 +0200
        Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-06 06:31 +0000
          Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-06 11:06 +0200
            Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Richard Kettlewell <invalid@invalid.invalid> - 2025-08-06 14:25 +0100
              Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-06 17:11 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-06 23:59 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-07 08:37 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-07 06:52 +0000
              Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Rich <rich@example.invalid> - 2025-08-18 16:49 +0000
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-06 12:46 +0200
        Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-06 23:56 +0000
          Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-19 12:41 +0200
            Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 01:07 +0000
              Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-20 09:48 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-20 11:13 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:40 +0000
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use vallor <vallor@cultnix.org> - 2025-08-21 00:27 +0000
                ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 13:04 +0200
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] The Natural Philosopher <tnp@invalid.invalid> - 2025-08-20 12:30 +0100
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:44 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 12:15 +0200
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 01:18 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 12:45 +0200
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 19:37 +0100
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 22:32 +0200
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 21:56 +0100
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 00:28 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] rbowman <bowman@montana.com> - 2025-08-23 05:51 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:23 +0100
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:12 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-08-29 19:40 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] rbowman <bowman@montana.com> - 2025-08-30 05:59 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-30 06:36 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-30 10:36 +0200
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-31 01:25 +0000
                Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] rbowman <bowman@montana.com> - 2025-08-23 05:43 +0000

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