BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Port scanner          BorlandTalk.com Forum Index -> Delphi Internet Winsock View previous topic :: View next topic   Author Message Jacques Guest Posted: Wed Mar 16, 2005 11:48 pm    Post subject: Port scanner Does anyone know how to scan ports with indy components? Back to top Remy Lebeau (TeamB) Guest Posted: Thu Mar 17, 2005 12:12 am    Post subject: Re: Port scanner "Jacques" <jacques.noah (AT) btinternet (DOT) com> wrote Quote: Does anyone know how to scan ports with indy components? Indy is not designed for that. The only way to port scan with Indy is to actually open a socket to the target IP/port, disconnect immediately after connecting, and catch any connection errors in between. Gambit Back to top Jacques Guest Posted: Thu Mar 17, 2005 12:41 am    Post subject: Re: Port scanner thanks Remy Is there perhaps another way this can be done? I just need to know if a port is open and if so, what program is using it. I've googled but could not find any info on this. thanks "Remy Lebeau (TeamB)" <no.spam (AT) no (DOT) spam.com> wrote Quote: "Jacques" <jacques.noah (AT) btinternet (DOT) com> wrote in message news:4238c5c7 (AT) newsgroups (DOT) borland.com... Does anyone know how to scan ports with indy components? Indy is not designed for that. The only way to port scan with Indy is to actually open a socket to the target IP/port, disconnect immediately after connecting, and catch any connection errors in between. Gambit Back to top Remy Lebeau (TeamB) Guest Posted: Thu Mar 17, 2005 1:35 am    Post subject: Re: Port scanner "Jacques" <jacques.noah (AT) btinternet (DOT) com> wrote Quote: I just need to know if a port is open If the port is on the local machine, then simply binding a socket to the port (not connecting or listening on the port) will tell you if it is available or not. Quote: and if so, what program is using it. For that, you have to perform a low-level query directly to the OS or socket stack. The socket API does not provide for that functionality. Have a look at the TCPView utility from http://www.sysinternals.com. Gambit Back to top Jacques Guest Posted: Thu Mar 17, 2005 2:04 am    Post subject: Re: Port scanner Thanks Remy, I found what iwas looking for. Cheers "Remy Lebeau (TeamB)" <no.spam (AT) no (DOT) spam.com> wrote Quote: "Jacques" <jacques.noah (AT) btinternet (DOT) com> wrote in message news:4238d229 (AT) newsgroups (DOT) borland.com... I just need to know if a port is open If the port is on the local machine, then simply binding a socket to the port (not connecting or listening on the port) will tell you if it is available or not. and if so, what program is using it. For that, you have to perform a low-level query directly to the OS or socket stack. The socket API does not provide for that functionality. Have a look at the TCPView utility from http://www.sysinternals.com. 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