exec 3<>/dev/tcp/www.google.com/80
echo -e "GET / HTTP/1.1\n\n">&3
cat <&3
Will in fact get you the index page from google. However you won't see
a /dev/tcp if you look in /dev it is intercepted by bash itself. Also
worth noting that bash is not the default shell in ubuntu 9.10, it is
dash.
/bi
Sorry to reopen a closed bug. This is in fact fixed in Karmic 9.10
status changed back.
** Changed in: bash (Ubuntu)
Status: Confirmed => Fix Released
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I'm confused, it says in the changelog that enable net extensions per
update #9, yet with the following installed:
ii bash4.0-5ubuntu2 The
GNU Bourne Again SHell
ii bash-builtins 4.0-5ubuntu2 Bash
Just in case anyone ever lobbies to disable /dev/tcp in Bash again, I
want to add my support to leaving it enabled. Lots of languages have
features which are dubious at best ("leading zero means octal", for
example), but distributions tend to leave those features in place
because the languages are
I confirm the /dev/tcp is not in place as of Jaunty,
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It's not fixed at all!
It's not released at all!
As of Ubuntu 9.04 (jaunty).
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This bug was fixed in the package bash - 4.0-4ubuntu1
---
bash (4.0-4ubuntu1) karmic; urgency=low
* Merge with Debian; remaining changes:
- Build from the upstream sources, build the documentation in info format.
- /etc/skel/.bashrc: eval lesspipe.
* Changes to the skeleto
also +1.
also, why isn't there a feature in launchpad to just let me vote +1 on this? ;)
(is there?)
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Here here. There maybe some reason for not having this feature but the
stated motivations are not it. +1 for adding /dev/tcp.
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Another request to fix this. It is a really simple fix, it only needs to
remove the "--disable-net-redirections" configure option added by Debian
and bring bash closer to what it was intended to be by its developers.
The Debian maintainer gave this justification in
/usr/share/doc/bash/README.Debia
What kind of security holes might it open? You can just connect to a
port.. same thing as with wget/curl/netcat... but directly from bash,
which makes it pretty handy.
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This feature might open security holes.
Still it's really useful, +1
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To add a bit more info, Bash can optionally provide a virtual /dev/tcp
and /dev/udp which can be used to request output from a udp/tcp port.
This works on many other distributions and is a really great feature of
Bash.. it's a shame that this isnt enabled.
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I second this request!
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** Changed in: bash (Ubuntu)
Status: Confirmed => Triaged
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This extension to bash would be a good thing make some network scripting
as it's possible in other (non-debian) distributions. There are at least
few scripts which use this extension. For example - google console
search scripts ( http://rexio.org/~rush/google.sh ).
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htt
** Changed in: bash (Ubuntu)
Importance: Undecided => Wishlist
Status: New => Confirmed
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