August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
Content preview from Bash. RecepturyBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
15.9. Wykorzystanie mechanizmów przekierowania sieciowego
Problem
Chcemy przesłać dane przez sieć lub pobrać informacje z sieci, ale nie dysponujemy narzędziem takim jak netcat.
Rozwiązanie
Jeśli w systemie jest zainstalowany interpreter bash w wersji 2.04 lub późniejszej, który został skompilowany z opcją --enable-net-redirections (opcja ta nie jest włączana w systemach Debian i pochodnych), do wykonania zadania wystarczy sama powłoka. Przedstawiony poniżej przykład został wykorzystany również w „15.10. Ustalenie własnych adresów IP”.
$ exec 3<> /dev/tcp/www.ippages.com/80 $ echo -e "GET /simple/?se=1 HTTP/1.0\n" >&3 $ cat <&3 HTTP/1.1 200 OK Date: Mon, 29 Oct 2007 14:36:39 GMT Server: Apache/2.2.6 (Fedora) X-Powered-By: PHP/5.1.6 Set-Cookie: smipcomID=5847141; ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.