ftp帐号,ftp帐号,ftp软件的使用方法

2020/09/17 17:30
阅读数 147

ftp功能一般我们用来安装源码程序和管理源码程序的传输工具。平时经常用到,下面介绍一点基本的工具使用教程。

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ftpds.png

FTP扫描器记录

/*

  • FTP Scan (C) 1996 Kit Knox
  • Exploits bug in FTP protocol that allows user to connect to arbritary
  • IP address and port.
  • Features: Untraceable port scans. Bypass firewalls!
  • Example usage:
  • ftp-scan ftp.cdrom.com 127.0.0.1 0 1024
  • This will scan IP 127.0.0.1 from ftp.cdrom.com from port 0 to 1024
  • */

#include <stdio.h>
#include <stdlib.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdarg.h>





int sock;
char line[1024];

void rconnect(char server)
{
struct sockaddr_in sin;
struct hostent


hp;

hp = gethostbyname(server);
if (hp==NULL) {
printf("Unknown host: %s\n",server);
exit(0);
}
bzero((char) &sin, sizeof(sin));
bcopy(hp->h_addr, (char
) &sin.sin_addr, hp->h_length);
sin.sin_family = hp->h_addrtype;
sin.sin_port = htons(21);
sock = socket(AF_INET, SOCK_STREAM, 0);
connect(sock,(struct sockaddr *) &sin, sizeof(sin));
}









void login(void)
{
char buf[1024];

sprintf(buf,"USER ftp\n");
send(sock, buf, strlen(buf),0);
sleep(1);
sprintf(buf,"PASS user@\n");
send(sock, buf, strlen(buf),0);
}




void readln(void)
{
int i,done=0,w;
char tmp[1];


sprintf(line,"");
i = 0;
while (!done) {
w=read(sock,tmp, 1, 0);
if (tmp[0] != 0) {
line[i] = tmp[0];
}
if (line[i] == '\n') {
done = 1;
}
i++;
}
line[i] = 0;
}












void sendln(char s[1024]) {
send(sock, s, strlen(s),0);
}

#define UC(b) (((int)b)&0xff)

void main(int argc, char *argv)
{
char buf[1024];
int i;
u_short sport,eport;
register char




p,a;
struct hostent
hp;
struct sockaddr_in sin;
char adr[1024];

if (argc != 5) {
printf("usage: ftp-scan ftp_server scan_host loport hiport\n");
exit(-1);
}


hp = gethostbyname(argv[2]);
if (hp==NULL) {
printf("Unknown host: %s\n",argv[2]);
exit(0);
}
bzero((char) &sin, sizeof(sin));
bcopy(hp->h_addr, (char
) &sin.sin_addr, hp->h_length);




rconnect(argv[1]);
/ Login anon to server /
login();
/ Make sure we are in /
for (i=0; i<200; i++) {
readln();
if (strstr(line,"230 Guest")) {
printf("%s",line);
i = 200;
}
}
a=(char )&sin.sin_addr;
sport = atoi(argv[3]);
eport = atoi(argv[4]);
sprintf(adr,"%i,%i,%i,%i",UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]));
for (i=sport; i<eport; i++) {
sin.sin_port = htons(i);
p=(char





)&sin.sin_port;
sprintf(buf,"\nPORT %s,%i,%i\nLIST\n",adr,UC(p[0]),UC(p[1]));
sendln(buf);
sprintf(line,"");
while (!strstr(line, "150") && !strstr(line,"425")) {
readln();
}
if (strstr(line,"150")) {
printf("%i connected.\n",i);
}
}
close(sock);
}






















至此,以上

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