Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #246062

Re: What should I put inside the file called wlan0?

From David Wright <deblis@lionunicorn.co.uk>
Newsgroups linux.debian.user
Subject Re: What should I put inside the file called wlan0?
Date 2022-03-08 16:20 +0100
Message-ID <DYJMZ-nKv-1@gated-at.bofh.it> (permalink)
References (3 earlier) <DWdxT-5aOL-1@gated-at.bofh.it> <DWsdz-5k5B-7@gated-at.bofh.it> <DWBqx-5pjh-1@gated-at.bofh.it> <DWW1Y-5CdK-3@gated-at.bofh.it> <DWYGt-5DUE-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Thu 03 Mar 2022 at 19:44:35 (+0100), Stella Ashburne wrote:
> From: "David Wright" <deblis@lionunicorn.co.uk>
> >
> > In addition, when using "source-directory"¹, you can leave all the
> > configuration files in place, and deactivate them by, say, adding
> > a disallowed character to their filenames, rather than having to
> > remove them.
> > 
> Can you give me an example of (sic) adding a disallowed character to their filenames? Does Linux permit the use of forbidden characters in filenames?
> 
> > BTW, I would add that, though I have a reputation with the OP for
> > not recommending man pages,
> > 
> Most of the man pages don't provide an example for each option or argument mentioned therein.

I would maintain that the examples in   man interfaces
and /usr/share/doc/ifupdown/examples/network-interfaces
cover the area pretty well, assuming you're actually
using ifupdown (which you disputed at one point).

> >   But one of my first actions on any new
> >   installation is to overwrite the networking files.
> > 
> Would you like to elaborate please?

Frequently, I have installed wireless machines with ethernet,
which leaves behind an /e/n/i file for ifupdown to read. Up
until buster, I used wicd to configure the network (both wifi
and wired), so I would immediately overwrite /e/n/i with:

$ cat /etc/network/interfaces
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
$ 

otherwise wicd will think that some other application is
configuring any interfaces contained therein.

The upshot is that I don't have an unmodified copy of
/e/n/i to check on my statement re source/source-directory.
What I did check was /var/lib/dpkg/info/ifupdown.postinst,
which is alleged to create the file during instalation.

$ diff -U0 /tmp/bull/ifupdown.postinst /tmp/bust/ifupdown.postinst 
--- /tmp/bull/ifupdown.postinst 2020-11-04 00:37:13.000000000 -0600
+++ /tmp/bust/ifupdown.postinst 2019-01-28 14:37:33.000000000 -0600
@@ -23 +23 @@
-      echo "source /etc/network/interfaces.d/*" >> /etc/network/interfaces
+      echo "source-directory /etc/network/interfaces.d" >> /etc/network/interfaces
@@ -30 +30 @@
-# Automatically added by dh_installdeb/13.2.1
+# Automatically added by dh_installdeb/12
@@ -41 +41 @@
-# Automatically added by dh_installinit/13.2.1
+# Automatically added by dh_installinit/12
@@ -48 +48 @@
-# Automatically added by dh_installsystemd/13.2.1
+# Automatically added by dh_installsystemd/12
@@ -65 +65 @@
-# Automatically added by dh_installsystemd/13.2.1
+# Automatically added by dh_installsystemd/12
$ 

Cheers,
David.

Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-02-28 19:50 +0100
  Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-02-28 20:20 +0100
    Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-02-28 21:00 +0100
      Re: What should I put inside the file called wlan0? tomas@tuxteam.de - 2022-02-28 21:30 +0100
        Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-02-28 22:50 +0100
      Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-02-28 21:30 +0100
        Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-02-28 22:50 +0100
          Re: What should I put inside the file called wlan0? tomas@tuxteam.de - 2022-03-01 07:40 +0100
            Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-01 13:20 +0100
              Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-01 15:30 +0100
                Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-01 16:00 +0100
            Re: What should I put inside the file called wlan0? Stefan Monnier <monnier@iro.umontreal.ca> - 2022-03-01 15:20 +0100
              Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-03-01 15:50 +0100
      Re: What should I put inside the file called wlan0? Tim Woodall <debianuser@woodall.me.uk> - 2022-03-01 13:20 +0100
        Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-03-01 13:30 +0100
          Re: What should I put inside the file called wlan0? David Wright <deblis@lionunicorn.co.uk> - 2022-03-01 15:40 +0100
            Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-03-01 15:50 +0100
        Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-01 15:40 +0100
          Re: What should I put inside the file called wlan0? Tim Woodall <debianuser@woodall.me.uk> - 2022-03-01 15:50 +0100
            Re: What should I put inside the file called wlan0? Greg Wooledge <greg@wooledge.org> - 2022-03-01 16:00 +0100
              Re: What should I put inside the file called wlan0? Tim Woodall <debianuser@woodall.me.uk> - 2022-03-01 16:40 +0100
                wikis: moin-moin : plain text (was: Re: What should I put inside the file called wlan0?) rhkramer@gmail.com - 2022-03-03 14:50 +0100
                Re: wikis: moin-moin : plain text (was: Re: What should I put inside  the file called wlan0?) Greg Wooledge <greg@wooledge.org> - 2022-03-03 15:00 +0100
                Re: wikis: moin-moin : plain text (was: Re: What should I put inside  the file called wlan0?) Tim Woodall <debianuser@woodall.me.uk> - 2022-03-03 15:50 +0100
      Re: What should I put inside the file called wlan0? David Wright <deblis@lionunicorn.co.uk> - 2022-03-01 17:30 +0100
        Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-02 09:10 +0100
          Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-02 19:00 +0100
            Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-03 09:00 +0100
              Re: What should I put inside the file called wlan0? Tim Woodall <debianuser@woodall.me.uk> - 2022-03-03 12:30 +0100
                Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-03 19:30 +0100
                Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-03 19:50 +0100
                Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-03 20:00 +0100
            Re: What should I put inside the file called wlan0? David Wright <deblis@lionunicorn.co.uk> - 2022-03-03 17:00 +0100
              Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-03 19:50 +0100
                Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-03-03 21:00 +0100
                Re: What should I put inside the file called wlan0? David Wright <deblis@lionunicorn.co.uk> - 2022-03-08 16:20 +0100
            Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-03 19:40 +0100
              Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-03 19:50 +0100
                Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-03 20:00 +0100
                Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-03 20:00 +0100
          Re: What should I put inside the file called wlan0? David Wright <deblis@lionunicorn.co.uk> - 2022-03-08 16:20 +0100
  Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-02-28 21:10 +0100
    Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-02-28 21:20 +0100
      Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-01 00:20 +0100
        Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-01 06:10 +0100
          Re: What should I put inside the file called wlan0? Markus Schönhaber <debian-user@list-post.mks-mail.de> - 2022-03-01 09:00 +0100
            Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-01 12:10 +0100
        Re: What should I put inside the file called wlan0? <tomas@tuxteam.de> - 2022-03-01 07:50 +0100
  Re: What should I put inside the file called wlan0? Nicolas George <george@nsup.org> - 2022-02-28 22:20 +0100
    Re: What should I put inside the file called wlan0? Ash Joubert <ash@transient.nz> - 2022-02-28 23:50 +0100
      Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-01 00:50 +0100
        Re: What should I put inside the file called wlan0? Curt <curty@free.fr> - 2022-03-01 10:30 +0100
        Re: What should I put inside the file called wlan0? Ash Joubert <ash@transient.nz> - 2022-03-01 22:20 +0100
      Re: What should I put inside the file called wlan0? Stella Ashburne <rewefie@gmx.com> - 2022-03-01 06:10 +0100
    Re: What should I put inside the file called wlan0? Brian <ad44@cityscape.co.uk> - 2022-03-01 00:50 +0100
      Re: What should I put inside the file called wlan0? Nicolas George <george@nsup.org> - 2022-03-01 10:50 +0100

csiph-web