Sponsored Content
Top Forums UNIX for Dummies Questions & Answers permission to bind a socket to port 843? Post 302313448 by sneakyimp on Tuesday 5th of May 2009 04:49:38 PM
Old 05-05-2009
permission to bind a socket to port 843?

I have written a flash socket security file server in PHP. The basic idea is that when Flash Player connects via socket to a server, the first thing it does is connect to port 843 and send a request for a 'socket policy file' by sending the string <policy-file-request/>.

The problem I have is that in order to launch this daemon script, I apparently need root level access in order to bind a socket to any port under 1024.

Can anyone recommend some way to let this php script bind to port 843 without needing root-level access? That seems like a big security risk to me -- especially if I want to launch this daemon using a php page hosted by apache. giving apache root-level access sounds like a VERY BAD idea.
 

10 More Discussions You Might Find Interesting

1. Programming

socket on serial port

Does anyone know if it's possible to send socket by a serial port ? If yes, how can I find on Irix the value of my serial ports to use with this function : serverSockAddr.sin_port = ? Thanks for all responses ! Kintoo (2 Replies)
Discussion started by: kintoo
2 Replies

2. Solaris

How to allow nonroot user to bind to port 80

We are making some changes, and are now using Weblogic as the webserver on one of my projects. I would like for the non root user running Weblogic to be able to bind to port 80. (10 Replies)
Discussion started by: 98_1LE
10 Replies

3. UNIX for Dummies Questions & Answers

Socket programming:One server two port

I want my server socket to listen on two ports in my machine. How do i achieve it? I will have two clients one connecting to 1 port and another to a different port. So my server needs to listen to both. Thanks. (1 Reply)
Discussion started by: abc.working
1 Replies

4. Programming

Cloning a socket connection, using other port numbers

Hello everybody, I've coded a multi-client server based on internet sockets using the scheme listen on port X-accept-fork, exactly like beej's guide At some point I would like to establish a secondary connection between a client and the server-child serving him. I was considering the... (4 Replies)
Discussion started by: jonas.gabriel
4 Replies

5. UNIX for Dummies Questions & Answers

Socket bind fails

Hi, 1 more new comer with a small problem. I have a Java socket program which tries to bind to a particular socket. It works fine with windows. But in Linux, it says 'address in use'. I tried 'netstat' to find if the port is being used. But it is free. Can anyone help plz? (0 Replies)
Discussion started by: ronyantony
0 Replies

6. Shell Programming and Scripting

Python: Bind to port 80 as root, then drop privileges?

I have written a small web server in Python, and now I would like to run it on port 80, but in order to be able to bind to a port below 1024 I need to have root privileges. I don't want to run the server as root, though. How can I bind to port 80 as root and then drop root privileges? Thankful... (0 Replies)
Discussion started by: Ilja
0 Replies

7. Programming

GetLastError API for socket/bind failure in VxWorks 5.4

Can anyone tell what is the system API for VxWorks which is used to find GetLastError() for socket/bind failure. I need to use it in some VxWorks application and need to call GetLastError but I'm not sure about the correct API. Thanks in advance (1 Reply)
Discussion started by: anilgurwara
1 Replies

8. Programming

Using socket to test a TCP port

Hello, I'm trying to write a small c application to test a tcp port. This works fine for the most part but the default timeout on the connect is very long. I have been reading many posts but and it looks like I need to set the socket to be non-blocking and poll for a result. I have been totally... (2 Replies)
Discussion started by: tjones1105
2 Replies

9. Shell Programming and Scripting

Script to bind to socket

i need to come up with a script that when run from the command line, it will bind to a socket, and listen for tcp connections on a certain port. something like: ### ./connection_listener 5666 i found the following script on the web but when i run it, it complains about "accept" not being... (1 Reply)
Discussion started by: SkySmart
1 Replies

10. IP Networking

Get process id and port from the socket

Hello, Please help me in getting the process id and the port number from the socket netstat -Aan|grep -i closed f100050010b133b8 tcp 0 0 *.* *.* CLOSED f1000500119b53b8 tcp4 0 0 *.* *.* ... (3 Replies)
Discussion started by: Vishal_dba
3 Replies
udp(n)								 Tnm Tcl Extension							    udp(n)

__________________________________________________________________________________________________________________________________________________

NAME
udp - Send and receive UDP datagrams. _________________________________________________________________ DESCRIPTION
The udp command allows to send and receive datagrams using the User Datagram Protocol (UDP) (RFC 768). UDP COMMAND
udp open [port] The udp open command opens a UDP datagram socket and returns an udp handle. The socket is bound to given port number or name. An unused port number is used if the port argument is missing. udp connect host port The udp connect command opens a UDP datagram socket and connects it to a port on a remote host. A connected UDP socket only allows to send messages to a single destination. This usually allows to shorten the code since there is no need to specify the destination address for each udp send command on a connected UDP socket. The command returns a udp handle. udp send handle [host port] message The udp send command sends a datagram containing message to the destination specified by host and port. The host and port arguments may not be used if the UDP handle is already connected to a transport endpoint. If the UDP handle is not connected, you must use these optional arguments to specify the destination of the datagram. udp receive handle The udp receive command receives a datagram from the UDP socket associated with handle. This command blocks until a datagram is ready to be received. In most cases, it might be a good idea to check for pending datagrams using the udp bind command. udp close handle The udp close command closes the UDP socket associated with handle. udp bind handle readable [script] udp bind handle writable [script] The udp bind command allows to bind scripts to a UDP handle. A script is evaluated once the UDP handle becomes either readable or writable, depending on the third argument of the udp bind command. The script currently bound to a UDP handle can be retrieved by calling the udp bind command without a script argument. Bindings are removed by binding an empty string. udp info [handle] The udp info command without the handle argument returns a list of all existing UDP handles. Information about the state of a UDP handle can be obtained by supplying a valid UDP handle. The result is a list containing the source IP address, the source port, the destination IP address and the destination port. SEE ALSO
scotty(1), Tnm(n), Tcl(n) AUTHORS
Juergen Schoenwaelder <schoenw@cs.utwente.nl> Tnm udp(n)
All times are GMT -4. The time now is 12:18 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy