如何监测本地机器的网络流量（急）

[williamxia8]

如何监测本地机器的网络流量？我想监测一台服务器的网络流量，因为它的客户端有600个，如果600个用户同时拷贝文件的话，可能会出现问题。求源码。

[williamxia8]

怎么没人回应呢，提示一下也好啊。工作急需！！！！多谢各位了！

[chenqsbeast]

1)它能够管理整个局域网硬件情况（cpu 、硬盘、内存、网卡）；
2)能够监测你的机器是否有木马；
3)sniff功能（截获网楼全部的数据流以共分析）
4)可以管理某台机器是否被访问!
5)监控你自己的机器内存、cpu使用情况，如果达到极限，报警（要有音响）
6)统计网络数据流量
7)远程关机、重器、以及注销
8)如果远程机器的cpu的温度升高到警戒线，就主动（不用巡测了）传回主台，并报警。
9)对远程计算机进行对时，并召回远程计算机的系统时间！
10)在主台还可以对远程机器的cpu进行降温处理！
11)增加了对网内是否有sniff功能的软件的监测！
下再地址：

http://www.zgtcc.com/upload/files/xinxi/F:XBakX20030305XNetAdminXNetAdminXLib.zip

[Kylix_XP]

使用winpcap吧..很容易 搞定..我只有linux下的程序..呵呵..


http://winpcap.polito.it/install/default.htm有教程(http://winpcap.polito.it/docs/man/html/index.html)和有关winpcap的下载..

关于采集流量:教程中有源码如下:

#include <stdlib.h>
#include <stdio.h>

#include <pcap.h>

void usage();

void dispatcher_handler(u_char *,
const struct pcap_pkthdr *, const u_char *);


void main(int argc, char **argv) {
pcap_t *fp;
char error[PCAP_ERRBUF_SIZE];
struct timeval st_ts;
u_int netmask;
struct bpf_program fcode;

/* Check the validity of the command line */
if (argc != 2)
{
usage();
return;
}

/* Open the output adapter */
if((fp = pcap_open_live(argv[1], 100, 1, 1000, error) ) == NULL)
{
fprintf(stderr,"\nError opening adapter: %s\n", error);
return;
}

/* Don't care about netmask, it won't be used for this filter */
netmask=0xffffff;

//compile the filter
if(pcap_compile(fp, &fcode, "tcp", 1, netmask) <0 ){
fprintf(stderr,"\nUnable to compile the packet filter. Check the syntax.\n");
/* Free the device list */
return;
}

//set the filter
if(pcap_setfilter(fp, &fcode)<0){
fprintf(stderr,"\nError setting the filter.\n");
/* Free the device list */
return;
}

/* Put the interface in statstics mode */
pcap_setmode(fp, MODE_STAT);

printf("TCP traffic summary:\n");

/* Start the main loop */
pcap_loop(fp, 0, dispatcher_handler, (PUCHAR)&st_ts);

return;
}

void dispatcher_handler(u_char *state, const struct pcap_pkthdr *header, const u_char *pkt_data)
{
struct timeval *old_ts = (struct timeval *)state;
u_int delay;
LARGE_INTEGER Bps,Pps;
struct tm *ltime;
char timestr[16];

/* Calculate the delay in microseconds from the last sample. */
/* This value is obtained from the timestamp that the associated with the sample. */
delay=(header->ts.tv_sec - old_ts->tv_sec) * 1000000 - old_ts->tv_usec + header->ts.tv_usec;
/* Get the number of Bits per second */
Bps.QuadPart=(((*(LONGLONG*)(pkt_data + 8)) * 8 * 1000000) / (delay));
/* ^ ^
| |
| |
| |
converts bytes in bits -- |
|
delay is expressed in microseconds --
*/

/* Get the number of Packets per second */
Pps.QuadPart=(((*(LONGLONG*)(pkt_data)) * 1000000) / (delay));

/* Convert the timestamp to readable format */
ltime=localtime(&header->ts.tv_sec);
strftime( timestr, sizeof timestr, "%H:%M:%S", ltime);

/* Print timestamp*/
printf("%s ", timestr);

/* Print the samples */
printf("BPS=%I64u ", Bps.QuadPart);
printf("PPS=%I64u\n", Pps.QuadPart);

//store current timestamp
old_ts->tv_sec=header->ts.tv_sec;
old_ts->tv_usec=header->ts.tv_usec;
}


void usage()
{

printf("\nShows the TCP traffic load, in bits per second and packets per second.\nCopyright (C) 2002 Loris Degioanni.\n");
printf("\nUsage:\n");
printf("\t tcptop adapter\n");
printf("\t You can use \"WinDump -D\" if you don't know the name of your adapters.\n");

exit(0);
}

[williamxia8]

多谢虽然分少了点，谢谢楼上两位