Programming :: How To Create Raw Socket With Non Root User Successfully?

Jun 30, 2011

I am writing a ping kind of program for my own application. This application needs to run with non root user privileges. This needs me to create a raw socket. But the ping connection is failing because of creating raw socket with non root user.How can I run the application successfully with non root user privileges using raw socket creation?

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Programming :: User Mode Permission Denied To Bind To Socket?

May 3, 2011

In user mode [non-root] linux machine, tried to bind a socket by using a"ioctl(iInterfaceSocket, SIOCSIFADDR, &stCommand)". I am getting error 13 -> Permission denied because of user mode. If change from usermode to kernel mode everything works fine.I need to bind the socket in user mode only, please suggest solution for the abovewhile explaining the above,

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Programming :: Socket Programming - Detect Whether A Client Socket Is Closed / Active?

Mar 8, 2011

iam just trying to connect to server which accepts one client and server will read(blocking operation) infinitely, but After closing the client socket the server "read operation" is returning zero and "errno variable(in errno.h)" value is also zero. how can i detect whether a client socket is closed/active..?

client.c
Serv_Addr.sin_family = AF_INET;
Serv_Addr.sin_addr.s_addr = inet_addr("127.0.0.1");
Serv_Addr.sin_port = htons(26553);
if( 0 > connect (Serv_Fds,&Serv_Addr,sizeof(Serv_Addr)) )
{
perror("connect");
return 0;
[Code]....

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General :: Socket Programming - Feed Some Words One By One To The Socket

Jul 6, 2010

i'm writing a simple program of client socket program. Here below is the code sample which i'm writing...

Code:
//tcp_client.c
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include<string.h>
#include<stdlib.h>
[Code].....

the above code works fine.if we copmile and run ./a.exe 192.xx.xx.xxx 1111 and press enter it works fine..everytime it asks "Please enter the message: " and if give that will be displayed in server. but my problem is i dont want to print everytime "Please enter the message: " i just want to feed some words one by one to the socket.

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Programming :: Setsockopt : Socket Operation On Non-socket Getting Error?

Mar 30, 2009

im getting that error in my code for some reason. I compiled my code, and when i try to run this server it throws me an error on my call to setsocketopt(). The only way it can reach that part of my loop is if it succeeds when it calls sock() so I dont understand why the error says its an operation on a non-socket. Im just trying to set up a server to pass messages from a client to it a viceversa. Here is the code:

Code:
int main()
{
int socket_fd, new_socket_fd, k;
struct addrinfo hints, *server_info, *p;
struct sockaddr_storage peer_address;
code....

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General :: Create The User With Root Privileges?

Jul 4, 2010

I want to create a user who has all the privileges that root user has.I know how to create a user but i don't know how to grant root privileges to him.

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General :: Create A User Without Root Privileges?

Apr 9, 2011

I create a user in CentOS 5.5 for using with my email account.

useradd ralf
passwd ralf

use "ralf user" only for my email account. How can I remove others privileges/permissions? Also, I want to use "ralf user" without root privileges/permissions.

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Software :: How To Create Root User Account

May 24, 2011

I try to create a user who has the 100% permissions and roles as the root with following command:

Code:
useradd -c "ANOTHER ROOT" -d /home/root2 -g root -m -s /bin/bash root2

But it seems the user just in the group of root but doesn't have all the rights as the root.

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Networking :: How To Create SSH User Without Access To Root Directory

Aug 7, 2009

I need to create an SSH user that can only access the directory I would specify for them. For example, I've been able to execute the following:
useradd -d /home/me/directory_for_this_user someuser

So when someuser logs in they get into this directory. Problem is that once they log in they can simply execute:
cd /
and navigate through all other directories which is a security risk.

How I could limit someuser's access to only /home/me/directory_for_this_user and its subdirectories and nowhere else in the system?

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General :: Create User Similar To Root Privileges?

Feb 20, 2010

i do need to create 1 user who has similar to root privileges but the username will not be root.

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Programming :: Call Socket Prog Code Written In User Space From Kernel Space?

Jul 14, 2009

How to use execv from kernel space to call a user space program writtenfor socket prog.

I tried to write code for socket in kernel but its not working.

Socket code in kernel is also needed.

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Ubuntu Servers :: Administrator User Id Doesn't Seem To Have Root Permissions To Create Directories?

Mar 30, 2010

Need help maintaining permissions across multiple directories. Have Ubuntu 8.04 Hardy Heron. O/S installed, updated and running with no problems.Why is it that my administrator user id doesn't seem to have root permissions to create directories? I am trying to setup hosting 3 separate websites and therefore create 3 separate directories to manage all associated files for the 3 websites. Also, I am attempting to read through the tutorials located at:URL...

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Programming :: Use CRON To Create New User Accounts?

Aug 17, 2010

Can we use CRON to create new user accounts?

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Programming :: Create File In User Home In C?

Oct 14, 2009

is there a way to save/create a file with fopen so the file is in the user home directory.Normally I'd do fopen("/home/me/myfile.... but me might change from one user to another. So can I so some sort of switch so it saves to whoever is using.

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Programming :: Create A User For Php/MySQL Under Ms Win Environment?

Jun 30, 2010

create a user for php/MySQL under ms win environment?

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Programming :: Shell Scripting: How To Create A User

Sep 5, 2010

How do I create a user account in a shell script? I know this may sound n00bish to you, but I know it's more than just mkdir-ing the home directory and subdirectories.

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Programming :: Run Software Compiled As Root On User?

Jul 27, 2009

I've compiled some code which I've given to other people, however when they try to run it they get segemtation fault. After some testing I've found if it's ran from root (where I compiled it) everything works, if I try to run from a user there's a fault.

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Programming :: Create A Device Driver For User Applications?

Feb 7, 2010

I have a user Application for transferring the data from one PC to the other PC using Ethernet Port, can we create a device driver for that ?? that means it should act like a virtual device, if we write data into /dev/some file, it should go the other PC

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Programming :: Non-root User Determine Which Days The Computer Ran?

Mar 22, 2010

Is there any way a non-root user can programmatically determine which days the computer ran during, say, the last month?

The information is in /var/log/messages.* but those files are root:root 640.

Non of the world-readable /var/log files on the Slackware 13.0 development system can be used:boot Not present if boot logging not enabled (default). dmesg No timestamps. lastlog Not enough info. wtmp Rewritten on each boot so not enough info. EDIT: not correct: by default wtmp is rotated weekly and kept for one month as configured in /etc/logrotate.conf xdm.log Not present if xdm not used. Xorg.0.log Not present if X not run.

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Programming :: Use Pthread Scheduling Policy Without Root User?

Jan 12, 2011

I am working on a large program in C to run on Puppy Linux. I have multiple pthreads running. I want to be able to set the pthread SCHED_POLICY and priority in my program but I want a user to be able to run the program without root privilege.
Using a sticky bit and root ownership gives the user too much power because they will be able to write and compile their own scripts. Is there a way to use 'sudo' when I set the thread parameters from my program or something like this?

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Programming :: BASH - Create User And Password On Multiple Machines

Aug 9, 2010

I'm trying to write a script that will prompt the user for a username/password, then create that user/password in the right groups on all my machines. I know this is kind of a long way around to avoid a NIS server, but I like making my life more difficult.

This is what I have so far:

Code:

the script has 2 problems: The "if" functions return an error and do not compare the strings successfully. whatever password is entered does get applied properly and the user is unable to login

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Programming :: Create Table In Joomla And Store User At Chat?

Feb 15, 2010

I need to be able to store users logged at chat server. The chat program stores the login information in a text file (no db). I need a modification so the user info is read from the flat file and stores into a table in Joomla db. I don't have access to source for making the Java Chat Server store the data directly to joomla db is not possible.Any pointer will be appreciated.Below if the code that read s the information from Java Chat Server.

Code:
function chat_getChattersFromLocalServer()
{

[code]...

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Programming :: Use Glade With C/python To Create A Graphical User Interface

Jan 30, 2011

I am working with ubuntu (linux) and have to create a graphical user interface. The GUI is a 2-D plot that have to plot a point. The point ( x and y co-ordinates) are not hardcoded, and are coming from another file (another piece of code written in c / python). I was thinking to use Glade with c/python to create this. But, I am not sure how to start with this.

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Programming :: C++ Codes To Check Whether User Is Root Or Has Admin Rights

Jan 8, 2011

One of the feature in my application involve changing of hardware setting. This require the user to be root or have administrative right.Before my application enable that feature, I want it to check whether the user is "root" or not, or whether user use "sudo" command to run the application or not, or whether the user has administrative rights or not.What are the codes or library that can do this?

NOTE: Sometimes, advanced linux user may set the user id of root to something else other than 0. So, getuid() may not be helpful in this case.

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Software :: Change A Process Running In Root-user To Non-root User ?

Oct 28, 2009

Is It possible to change a process running in root-user to non-root-user by setting suid / uid / euid / gid etc... I so please instruct how, when and wat to set in order to change a process running in root-user to non-root user

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Networking :: Create The IPV6 Socket

Mar 14, 2010

I am trying to create the IPV6 socket and was wondering if anybody has any code strip which I can reuse ?

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Programming :: Create A Simple Program With Will Continually Read Input From The User Until They Enter A Blank Line?

Apr 6, 2011

basically i have to create a simple program with will continually read input from the user until they enter a blank linei know how to read in certain input but not sure how to get it continually in a loop

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Programming :: Timer In Socket Programming - Wait For X Sec After Read() And Then Disconnect The Client Connection

Mar 8, 2011

I have a server listening on incoming client connections. Once the client establishes SSL connection with the server, the server waits on read() from the client. Only Client can disconnect the connection. I want to have a timer in the server program to wait for x secs after read() and then disconnect the Client connection.

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Programming :: Socket And Timer Programming - Server Doesn't Execute Any Msg Which Client Sent

May 16, 2011

i have a server program which accept multiple client connection and am using polling. like every 2 secs it will look to client whether any data is received after it binded. i have used setitimer but there is runtime error i got.. the server accept all client connection but doesn't execute any msg which client sent.

#include<stdio.h>
#include<stdlib.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netdb.h>
#include<unistd.h>
#include<pthread.h>
#include<string.h>
[Code]....

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Programming :: Socket Programming While Displaying Received Message In File

May 11, 2011

i have problem in socket programming, while displaying received message in file,i got a problem... i cant able to write it in the file.... this is the code....

Code:
/* tcpserver.c */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
[Code]....

now my problem is run time error i can able to create file but i cant able to write file....log.txt contain nothing.... as here i have give sample code... dont say not initialising function and all.... i have initialised , please only see func1() - my problem is only not able to write msg which i got received from the client..

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