Transparent proxying - how to pass socket to local server without modification?

Posted by Luca Farber on Stack Overflow See other posts from Stack Overflow or by Luca Farber
Published on 2010-04-29T23:45:55Z Indexed on 2010/04/30 0:07 UTC
Read the original article Hit count: 402

Filed under:

linux

|

socket

|

proxy

|

sockets

|

c

Hello,

I have a program that listens on port 443 and then redirects to either an SSH or HTTPS local server depending on the detected protocol.

The program does this by connecting to the local server and proxying all data back and forth through its own process.

However, this causes the originating host on the local servers to be logged as localhost.

Is there any way to pass the socket directly to the local server process (rather than just making a new TCP connection) so that the parameters of sockaddr_in (or sockaddr_in6) will be retained?

Platform for this is Linux.

© Stack Overflow or respective owner

Related posts about linux

apt-get install and update fail

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've got a problem with apt-get update and apt-get install ... commands . every time update or installing fails and errors are : Get:1 http://dl.google.com stable Release.gpg [198B] Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en_US Get:2 http://dl… >>> More
kernel module compiling error

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
sh@ubuntu:/home/ccpp/helloworld$ make gcc-4.6 -O2 -DMODULE -D_KERNEL_ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -isystem /lib/modules/`uname -r`/build/include -c -o hello-1.o hello-1.c hello-1.c:4:0: warning: "MODULE" redefined [enabled by default] <command-line>:0:0: note: this is… >>> More
Build-Essentials installation failing

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am having trouble accessing the several critical header files that show to be a part of the build process. The "Ubuntu Software Center" shows "Build Essentials" as installed: Next I did the following two commands, which did not improve the problem: ~$ sudo apt-get install build-essential [sudo]… >>> More
Updating Debian kernel

as seen on Super User - Search for 'Super User'
I'm trying to update my Debian machine to 2.6.32-46 (which is the new stable). However, after doing apt-get update my apt-cache search linux-image shows me: linux-headers-2.6.32-5-486 - Header files for Linux 2.6.32-5-486 linux-headers-2.6.32-5-686-bigmem - Header files for Linux 2.6.32-5-686-bigmem linux-headers-2… >>> More
Serial connection over a single USB cable (Windows to linux, or linux to linux)

as seen on Server Fault - Search for 'Server Fault'
I'm helping out with a project for an embedded device that only has USB and no serial. This device is running Linux. These days, when we need to connect to a serial port on a device we typically use a USB to serial adapter (on something like a phone system or a load balancing device, etc). I would… >>> More

Related posts about socket

Enable Php Fastcgi and Get 500 Internal Server Error (Lighttpd)

as seen on Server Fault - Search for 'Server Fault'
anyone can help me? I just got this problem today. Before this my site running smooth with Fastcgi enable but now its show 500 internal server error with below logs. I need to disable php fastcgi in LxAdmin so that my visitor can access my site but when I disable php fastgi, my web performance is… >>> More
Enable Php Fastcgi and Get 500 Internal Server Error (Lighttpd)

as seen on Server Fault - Search for 'Server Fault'
Hello everyone, anyone can help me? I just got this problem today. Before this my site running smooth with Fastcgi enable but now its show 500 internal server error with below logs. I need to disable php fastcgi in LxAdmin so that my visitor can access my site but when I disable php fastgi, my web… >>> More
Rsync on Windows - Socket operation on non-socket

as seen on Stack Overflow - Search for 'Stack Overflow'
I get the following error when trying to run the latest Cygwin version of rsync in Windows XP SP2. The error occurs for attempts at both local syncs (that is: source and destination on the local harddisk only) and remote syncs (using "-e ssh" from the openssh package). Any advice on how to fix/workaround… >>> More
Java tcp socket server with j2me client socket

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I want to create java server socket and j2me client socket which can communicate with each other. Does anyone know? Can any one send me the code if done. or any link. Thanks Bapi >>> More
Forward local port or socket file to remote socket file

as seen on Server Fault - Search for 'Server Fault'
Hi All, Quick question - I run two linux boxes, one my own desktop and the other my VPS. For security reasons on the VPS end I opted for socket connections to MySQL (/var/run/mysqld/mysql.sock). I know I can tunnel like this: ssh -L 3307:127.0.0.1:3306 [email protected] if I set up the remote sql server… >>> More