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JB>> nej, det er det ikke.... serveren sætter en port som den lytter på... hvis klienten ikke \"spørger\" på denne port, så får klienten ikke noget svar.
Jeg tror nu vi mener det samme, men terminologien er bare ikke ens
Du skal rette i filen services i biblioteket : c:\\winnt\\system32\\drivers\\etc
her er en del af en længere artikel om ftp(fra Technet), men DNS ports skulle fungere på samme måde :
TCP Port FTP listens on TCP port 21 by default, but you can change the port for the FTP_service. There are two places where you can change the listening port:
The Services file located in the winnt_root\\system32\\drivers\\etc directory The Internet Information Services metabase Changing the listening port really does one thing: It provides for a bit of very rudimentary security. If a user on the Internet knows your Web address and wants to get into your file list, then that person may guess that he can use the FTP protocol to access the same data. Most FTP clients request TCP port 21 when trying to access the data. If you change the FTP listening port, you\'ve eliminated the wild guesses. However, anyone with a port scanner could determine the new listening port in a just few minutes.
The Services File The Services file that ships with previous versions of Windows NT and Windows 2000 includes the following two lines:
ftp-data 20/tcp ftp 21/tcp
These lines indicate that all FTP clients will request TCP port 21 by default, and all FTP services will listen on TCP port 21 by default. You can easily change the default for both FTP clients and FTP services by editing the Services file. The Services file must then be saved in the same directory, and it cannot have a file extension.
jgammelg :\\> Jeg kan ikke få serveren til at bruge ændringerne jeg gør i service-filen? Jeg har både prøvet at ændre portene for DNS samt FTP, og derefter genstartet servicen samt serveren. Men en NETSTAT -a -n viser at de stadig lytter på hhv. port 21 og 53.
Har du haft dette til at virke? Jeg kører på en Windows2000 Server.
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