Re: Two Ncat use cases - for Users' Guide maybe?

[Jacek Wielemborek <wielemborekj1 () gmail com>]

2013/8/26 Jacek Wielemborek <wielemborekj1 () gmail com>:
> Hi Fyodor,
>
> Thanks for the reply! Comments inline.
>
> 2013/8/24 Fyodor <fyodor () nmap org>:
> > On Fri, Aug 16, 2013 at 1:40 PM, Jacek Wielemborek <wielemborekj1 () gmail com>
> > wrote:
> > > One might say I hadn't discovered America, but here they are:
> > >
> > > 1)
> > > http://www.reddit.com/r/linux/comments/1ki67v/web_server_in_one_line_of_bash/
> > >
> > > It's actually netcat, but works for Ncat too. Credits go to batrick.
> >
> >
> > Hi Jacek.  Yeah, I think that could be valuable for the user's guide tricks
> > section.  But with Ncat you could probably make the line even simpler.
>
> At first, I had no idea what you meant, but then I remembered that
> --sh-exec functionality basically does the infinite loop and the
> redirection for the user, so I ended up with something like this:
>
> nc -lk 8080 --sh-exec "echo -e 'HTTP/1.1 200 OK\r\n'; cat index.html"
>
> For Windows, this is way uglier:
>
> ncat  -l --sh-exec "echo HTTP/1.1 200 OK& echo(&type index.html"
>
> "echo (&" basically says "print a blank newline and proceed to the
> next command". As I found while experimenting, adding spaces to the
> command would make it not work. Tested under Cygwin.
>
> Firefox would accept the reply without the HTTP header, but adding it
> makes the file interpreted as HTML by default.
>
> > In addition, you'd probably also want to show how to do a more generic
> > web server using the new Lua scripting functionality.
>
> The httpd.lua server needs David's final approval before it gets
> merged into the trunk. I could write a bit about it anyway already.
>
> > > 2) ssh somehost -D 8080 & ncat --proxy localhost:8080 --proxy-type
> > > socks4 remotehost
> >
> >
> > That's a good one too.
> >
> > > Think that would fit into the Users' Guide "tricks" section?
> >
> >
> > Yes!  And you're welcome to add either or both.
>
> All right, I'll most likely find some time to do it today.
>
> > The Ncat guide could use
> > more documentation of the new Lua features too.
>
> Damn, I'm sorry to admit that even though I promised to ask David
> about it last time we met, I forgot to. Hopefully I'll remember to
> mention it during out meeting tomorrow. It'd be good to know his
> vision of the documentation too.
>
> >  I just realized that the
> > Ncat Guide source code is in the web tree, where relatively few people have
> > access to it.  So I've moved it to the main Nmap repo in
> > nmap/ncat/docs/ncatguide.xml so everyone can read it and all the committers
> > can make changes.
>
> Nice, that could speed up things. It would be cool to have some way to
> preview the changes to the file too, though. Anyway, thanks for making
> that available.
>
> > Cheers,
> > Fyodor
>
> Yours,
> Jacek Wielemborek

I just added the two tricks, see commits 32044-32046. If you find the
style not good enough or want me to revert it and start over in a
topic branch, let me know.

Yours,
Jacek Wielemborek
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