how to fix this error: I wanna compile a C program which niffs the network for arp packets and prints them out ,I keep getting this error:
undefined reference to `pcap_parse' I have installed every thing new version of pcap ,..
i need to write a program in c that can sniff packets from Ethernet and distinguish RTP packets from Non-RTP packets, i have no idea what should i do
View 9 Replies View RelatedI have users using Windows XP, Windows 7, Linux (Fedora) and Mac. They all are in a single private network and all access internet through a Linux (RHEL5) system in which Squid acts as gateway. The same is true with my branch offices too except that private network is different and gateway system uses Fedora 9 instead of RHEL5. All the branch offices are connected through point to point leased lines with the head office for file transfer.
My requirement is this: I have a web server located at head office. Presently I am able to access this server from my branch offices through internet. I would like to access this server from branch offices through leased lines. This too I am able to access if I do routing in users system. The file transfer is taking place through one to one system at two ends by creating static routing in those systems.
I had wrote a program in the vi editor using the command vi [filename.cc] in open terminal and now i need to compile n run it
View 3 Replies View RelatedI'm looking for an open source/free network emulator tool that I could use on Mac OS X, to simulate a slow network connection, limited bandwidth and other network characteristics such as dropped packets etc for both UDP/TCP connections (or even on the physical layer).
I'm looking for the simplest solution that would allow me to run TCP/UDP servers and have a few clients connect to them on localhost emulating various network connections. I'm mainly wondering if I can use something like Linux's netem on Mac OS X (or even better cross-platform Windows/Linux/Mac). Perhaps I can run VirtualBox and a Linux kernel running netem, has anyone had luck with that?[URL]...
I would like to modify my init.gz and add udp-sender to this image. After copying the program compiled on my system to init image I have error when I try run udp-sender: udp-sender not found When I checked ldd I saw that the some libraries are missing. I copied them from my system but still got the same error. how can I compile program for my init.gz?
View 3 Replies View Relatedi just grabed a book and wrote a program and tried to compile it using 'javac' and everytime i'm getting this error:
javac Example.java
/usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../lib64/crt1.o: In function `_start':
/usr/src/packages/BUILD/glibc-2.9/csu/../sysdeps/x86_64/elf/start.S:109: undefined reference to `main'
[Code]....
When I compile a C program in Fedora Core 12 using the following format: gcc -o program -static program.c
I get an error:
What do I need to do to make the program compile correctly with the -static flag ?
I want to compile a program with the source I already have but I have to add an option. When I run the command ./autogen.sh the terminal returns aclocal not found. Is it a package or something i have to install?
View 6 Replies View RelatedI have a program consists of header files, .cpp, .c, a Makefile and need to include the problem instances file (.tim).May i know how to compile and run them? From google, i have heard bout the command make.
View 6 Replies View RelatedMy LAN has 2 PCs installed, Ubuntu 10.04 and Windows XP. I run the server on Ubuntu, and client on Windows XP. Because I am doing stress test, so the client will keep sending tons of packets to server.
The strange thing is: After few seconds, the client program crash because of insufficient network buffer, the server is still ok. But after that I cant connect Ubuntu PC anymore until I restart it. And I check the router, the led for the Ubuntu PC is always ON (not blinking), look like it is jam already.
I am using tcp for data transmission between 2pcs running linux.During transmission, I have noticed that if I unplug the network cable and reinsert it quickly,connection is not lost(same as i expect)and the sender start to resend the packet after 5s(what i expect is that network packets sent immediately after quick physical disconnect and reconnect).My question is can i reduce 5s to 0s(resend immediately after network cable reconnect)?Any parameters(tcp rto,txqueuelength,..) can be modified to achieve this condition?
View 10 Replies View RelatedI'm trying to compile and link a program to test parapin.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "parapin.h"
int main(int argc, char *argv[])
{ ...
[Code]....
It looks like the library is found (no error anyway) but the functions in it are not seen. Text at the beginning of libparapin.a includes function names as used in the test program, and parapin.h declares them.
Command to compile n execute a Fortran program on a Linux machine
View 6 Replies View Relatedi have a linux server runnig oracle applications. i need to access this server from putty using ssh through internet. i did by registering my static ip with the dnydns.org and i am able to connect to the server. but now there is no security to authenticate any user as any one knowing the password can login to it.
i thought of configuring the firewall of linux server but the client ip`s are not static and they change continiously. so thought of keeping one more pc between the server and the router which will do the work of authenticating. but i am confuse as how to configure it to allow the packets coming from the internet after authenticating and to by pass the packets generated from internal LAN?
I created a similar thread last week in the networking section but only got one response. I was hoping to get a little more help here as this forum helped me tremendously to partition my hard drive safely. That was over a week ago, and ever since then I have been struggling with setting up my network. Here is what I have done.Basic set up with netconfig. I selected DHCP and followed the directions on the screen.ifconfig -a shows eth0 with no RX or TX packets at all, but at least it showed me information. If it was not detecting my card (which is compatible with linux), it would have said no device found. correct?
dhclient eth0 just hangs there for half a minute until I can add a command again.dhcpcd eth0 times out.I read (in slackbook chaper 5.2.1) that the correct kernel module may not be loaded. So I opened rc.modules with pico and went to the netdevice section. In slackbook it said to find my device and uncomment it.... but I cant find it! (I have an atheros ar9285 in my stock compaq CQ61 laptop) I also opened rc.netdevice and it was empty..It seems like the more I learn about the network, the more lost I get. I keep hearing that configuring a network on slackware is easy, am I just missing some simple step?Also, whenever I startx, akonadi gives me an error. I also get another error saying that it could not parse XMS file. Is that just due to my lack of an internet connection at the moment?
I am trying to compile a very simple 32-bit program on my 64-bit fedora 12 install, but it won't let me.
I get this error.
I tested it on the school server (64 bit Red Hat Server), and it compiled flawlessly without any warnings. I think I am missing some libraries, but don't know which.
I was using my college's unix server (ubuntu presumably) to compile programs in the laboratory. Now, i have installed Opensuse 11.4 with gnome3. I have installed the Developers pattern, and almost all the packages that looked relevant (which came up when i searched for libgc , gcc, and all). Now, i cant compile a program:
Code:
/*program to test file I/O and getch/putch functionaliny in gcc*/
#include<stdio.h>
int main()
{ FILE *fi;
char ch;
[Code]....
I can't compile a C program form terminal using gcc by Code Blocks 8.02 is able to do so.
Code:
#include<stdio.h>
int main(void)
{
printf("Hello World
[Code]....
im writing from ubuntu i have made a c program and im wondering how can i compile it for being able to run on mac
View 2 Replies View RelatedI followed the steps from the this website [URL]..but after I run: sudo make I got this output:
[Code]...
My Fedora 14 have installed gcc-4.5.1-4.fc14.x86_64,qt-4.7.1-5.fc14.x86_64,
I don't know how to use g++ to compile QT program.
Do I need to set PATH or something else?
I am not a networking expert by any means (in fact I have never taken a networking course), but I have taken several security courses, and generally we wind up discussing replay attacks. For example, the Needham-Schroeder protocol (using symmetric-key cryptography anyway) is flawed because it allows for replay attacks, and I understand why.
I guess my question is actually how someone would perform a replay attack. I know I can sniff network traffic by downloading wireshark. I also have downloaded winpcap and npg on my WinXP virtual machine. I'm trying to use this guide to help me, but I'm quite lost:[URL]What I did was to post a "link" to my facebook profile and I sniffed the traffic using wireshark. What I would ultimately like to accomplish is to copy that packet out of the wireshark output, and then use a tool like npg to transfer the raw packet back to facebook, which should result in a second, redundant post. I just can't figure out how to do that.
I'm pretty sure this should be possible. Facebook only uses an SSL session for authentication during login. After that, the information is just sent in the clear, so I'm pretty sure this should be possible.Can anyone explain how to do such a thing? It would really help my research paper that I'm working on this semester if you can. As of right now the attack we are trying to demonstrate/defend against is using a Windows VM, which is why I'm using winpcap/npg. The attack is actually possible using just about any OS (depending on the exploit used), but our POC is Windows only at the moment
I'm using madwifi linux driver (ath1) in monitor mode to capture some wireless traffic. I can see that all wireless traffic is coming well through the wireless interface (checked using TCPDUMP). What I want to know is how I can forward the captured wireless packets to a different Ethernet interface (e.g. eth2) in the same machine to send those captured packet out to a different computer.
I set 1 for /proc/sys/net/ipv4/ip_forward
for iptables, I tried this rule: iptables -A FORWARD -i ath1 -o eth2 -j ACCEPT
However, I coudn't read any packet from eth2 via TCPDUMP.
I am running into trouble while trying to set-up a iptables routing policy. I have two machines on the same sub-network (xxx.xxx.153.0). One of the machines is used as a default gw for the other (xxx.xxx.153.250 is a gateway for xxx.xxx.153.142 and xxx.xxx.153.254 is a gw for xxx.xxx.153.250). There is no explanation for why the xxx.xxx.153.250 is in the middle -- xxx.xxx.153.142 can go straight to xxx.xxx.153.254, but is is like that for now.I am trying to find an iptable rule to be executed on the xxx.xxx.153.250 machine to route the packets.
View 3 Replies View Relatedfrom the commend line i went to compile the c program by giving the commend "gcc first.c -o first" but the commend line showing gcc is not found. iam using fedora 13 what can i do to compile the program . the program i used to compile is below
#include<stdio.h>
main()
{
printf("hello word
");
}
Following is the IDL program found on the internet but i dont know how to compile and execute (even dont know can it be done under linux).
Code:
when I try to compile a program that uses SFML with g++, this appears:
Code:
/usr/local/include/SFML/Window/OpenGL.hpp:47:23: fatal error: GL/gl.h: No such file or directory
i am not able to compile my test program which uses gtkmozembed.As i am very new to this, i dont know which are the packages to be installed and how to compile
[Code]...
What are the steps to compile a ns2 program?
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