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Groups > comp.os.linux.misc > #90225

Re: /dev/tcp

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In comp.os.linux.misc, Lawrence DOliveiro <ldo@nz.invalid> wrote:
> On Thu, 20 Aug 2026 00:59:41 -0000 (UTC), Eli the Bearded wrote:
>> This came up in the context of "how to test network on a system with
>> no root and no helpful utilities installed."
> So a version of bash that supports /dev/tcp is somehow excluded from
> that “no helpful utilities installed” assumption?

The system being tested did not have bash installed. Busybox provided
/bin/sh there.

> Sounds like a circular assumption to me, somehow. You know, where you
> phrase the requirements so the only solution is the one you already
> picked.

Maybe you can go reread that post you just replied to, with message id
<eli$2608192059@qaz.wtf>, and see if you can find this phrase:

   "ruled out because bash was not installed"

>> [*] knows you can use python, too, but doesn't have the code to do
>> so memorized
> Why would you need to?

It's very true that one can look things up, but also if you can do
things without looking them up, that's easier.

Elijah
------
python is a just a digression here

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Thread

/dev/tcp Eli the Bearded <*@eli.users.panix.com> - 2026-08-19 21:20 +0000
  Re: /dev/tcp Richard Kettlewell <invalid@invalid.invalid> - 2026-08-19 23:53 +0100
  Re: /dev/tcp Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-19 23:42 +0000
    Re: /dev/tcp Eli the Bearded <*@eli.users.panix.com> - 2026-08-20 00:59 +0000
      Re: /dev/tcp Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-20 03:59 +0000
        Re: /dev/tcp Nuno Silva <nunojsilva@invalid.invalid> - 2026-08-20 10:10 +0100
        Re: /dev/tcp Eli the Bearded <*@eli.users.panix.com> - 2026-08-20 18:15 +0000
          Re: /dev/tcp Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-20 23:30 +0000
            Re: /dev/tcp Nuno Silva <nunojsilva@invalid.invalid> - 2026-08-21 01:18 +0100
            Re: /dev/tcp Marc Haber <mh+usenetspam2616@zugschl.us> - 2026-08-21 09:52 +0200
              Re: /dev/tcp Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-21 08:12 +0000
                Re: /dev/tcp Marc Haber <mh+usenetspam2616@zugschl.us> - 2026-08-21 11:16 +0200
                Re: /dev/tcp Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-21 22:57 +0000
                Re: /dev/tcp Marc Haber <mh+usenetspam2616@zugschl.us> - 2026-08-22 06:17 +0200
              Re: /dev/tcp c186282 <c186282@nnada.net> - 2026-08-21 21:50 -0400
            Re: /dev/tcp vallor <vallor@vallor.earth> - 2026-08-23 00:56 +0000
              Re: /dev/tcp Rich <rich@example.invalid> - 2026-08-23 04:01 +0000
                Re: /dev/tcp c186282 <c186282@nnada.net> - 2026-08-23 03:37 -0400
                Re: /dev/tcp "Carlos E.R." <robin_listas@es.invalid> - 2026-08-23 13:50 +0200
                Re: /dev/tcp The Natural Philosopher <tnp@invalid.invalid> - 2026-08-23 12:52 +0100
                Re: /dev/tcp The Natural Philosopher <tnp@invalid.invalid> - 2026-08-23 12:50 +0100
  Re: /dev/tcp Rich <rich@example.invalid> - 2026-08-20 13:50 +0000
    Re: /dev/tcp c186282 <c186282@nnada.net> - 2026-08-20 13:02 -0400
      Re: /dev/tcp Rich <rich@example.invalid> - 2026-08-20 18:26 +0000
      Re: /dev/tcp The Natural Philosopher <tnp@invalid.invalid> - 2026-08-21 13:54 +0100
        Re: /dev/tcp c186282 <c186282@nnada.net> - 2026-08-21 22:57 -0400
          Re: /dev/tcp "Carlos E.R." <robin_listas@es.invalid> - 2026-08-22 21:47 +0200
            The hammer is best (Was: /dev/tcp) gazelle@shell.xmission.com (Kenny McCormack) - 2026-08-22 23:50 +0000
              Re: The hammer is best (Was: /dev/tcp) c186282 <c186282@nnada.net> - 2026-08-23 04:28 -0400
              Re: The hammer is best Richard Kettlewell <invalid@invalid.invalid> - 2026-08-23 10:14 +0100
                Re: The hammer is best "Carlos E.R." <robin_listas@es.invalid> - 2026-08-23 13:55 +0200
                Re: The hammer is best The Natural Philosopher <tnp@invalid.invalid> - 2026-08-23 13:16 +0100
      Re: /dev/tcp Geoff Clare <geoff@clare.See-My-Signature.invalid> - 2026-08-21 13:41 +0100
        Re: /dev/tcp Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-21 22:58 +0000
        Re: /dev/tcp c186282 <c186282@nnada.net> - 2026-08-21 22:28 -0400
    Re: /dev/tcp Eli the Bearded <*@eli.users.panix.com> - 2026-08-20 18:22 +0000
      Re: /dev/tcp The Natural Philosopher <tnp@invalid.invalid> - 2026-08-21 13:57 +0100
  Re: /dev/tcp Lars Poulsen <lars@beagle-ears.com> - 2026-08-23 06:37 -0700
    Re: /dev/tcp Richard Kettlewell <invalid@invalid.invalid> - 2026-08-23 14:49 +0100

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