BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Howdo I "ping" and web address          BorlandTalk.com Forum Index -> Delphi Internet Winsock View previous topic :: View next topic   Author Message Cornie Guest Posted: Thu Apr 19, 2007 1:56 pm    Post subject: Howdo I "ping" and web address I would like to check if a website is available and then do a download from there. I have sorted the download part out, but want to check regally to see if the web site is available. My clients mostly use dial-up connections, so I want to "ping" the web site about every 5 min and if found then download the file. I would appreciate any help and thanks for a wonderful set of components and this forum that makes my life a lot easier. I am a novice in the Internet area, so thank you for all the help and hints. I appreciate the time and effort everybody put into this. Regards Cornie van Schoor InfoStar Software South Africa Back to top MikeR Guest Posted: Thu Apr 19, 2007 7:01 pm    Post subject: Re: Howdo I "ping" and web address Cornie wrote: Quote: I would like to check if a website is available and then do a download from there. I have sorted the download part out, but want to check regally to see if the web site is available. My clients mostly use dial-up connections, so I want to "ping" the web site about every 5 min and if found then download the file. I would appreciate any help and thanks for a wonderful set of components and this forum that makes my life a lot easier. I am a novice in the Internet area, so thank you for all the help and hints. I appreciate the time and effort everybody put into this. Regards Cornie van Schoor InfoStar Software South Africa Why not just try to download the file, and handle the failure if it's not there. Is a ping less costly? Mike Back to top David Zimmerman Guest Posted: Thu Apr 19, 2007 7:44 pm    Post subject: Re: Howdo I "ping" and web address MikeR wrote: Quote: Cornie wrote: I would like to check if a website is available and then do a download from there. I have sorted the download part out, but want to check regally to see if the web site is available. My clients mostly use dial-up connections, so I want to "ping" the web site about every 5 min and if found then download the file. Why not just try to download the file, and handle the failure if it's not there. Is a ping less costly? And the website could go down after the successful ping and before the download attempt. The download has to tolerate the website being down so why ping. Back to top Martin James Guest Posted: Thu Apr 19, 2007 9:07 pm    Post subject: Re: Howdo I "ping" and web address Quote: Why not just try to download the file, and handle the failure if it's not there. Is a ping less costly? And the website could go down after the successful ping and before the download attempt. The download has to tolerate the website being down so why ping. ...and ICMP ping is hopless, being blocked by many firewalls. If only port 80 is open, then only a TCP connect on 80 will give any clue. If you are going to do a connect, might as well attempt the HTTP download. Rgds, Martin Back to top Ken Davies Guest Posted: Thu Apr 19, 2007 9:17 pm    Post subject: Re: Howdo I "ping" and web address I'm looking for a solution to this myself. Slightly different problem in that our ISP is messing us around and our site is up and down like a yo-yo so I'd like to write a routine to ping the site every two minutes or so. The problem I have is that the Indy ping works fine in XP but fails in Vista. Any solutions? TIA Ken Davies "Cornie" <cornievs (AT) gmail (DOT) com> wrote in message news:46272eca (AT) newsgroups (DOT) borland.com... Quote: I would like to check if a website is available and then do a download from there. I have sorted the download part out, but want to check regally to see if the web site is available. My clients mostly use dial-up connections, so I want to "ping" the web site about every 5 min and if found then download the file. I would appreciate any help and thanks for a wonderful set of components and this forum that makes my life a lot easier. I am a novice in the Internet area, so thank you for all the help and hints. I appreciate the time and effort everybody put into this. Regards Cornie van Schoor InfoStar Software South Africa Back to top Cornie Guest Posted: Thu May 03, 2007 4:34 am    Post subject: Re: Howdo I "ping" and web address I am really a novice in this. Most of my code has been created from examples from others, with me understanding the begin if .. else end parts! I think Martin Jones reply to my issue is an indication where to look for your solution on Vista. I know the default "rights" has change on Vista on which ports is open etc. Due to some other work I have not started sorting out my problem, but for start I will first check if there is a valid RAS connection and then try a download. I will have to check the cost, because I need the procedure to return very quickly. I know I should run it in a thread, but my experience with that is to limited. Regards Cornie Ken Davies wrote: Quote: I'm looking for a solution to this myself. Slightly different problem in that our ISP is messing us around and our site is up and down like a yo-yo so I'd like to write a routine to ping the site every two minutes or so. The problem I have is that the Indy ping works fine in XP but fails in Vista. Any solutions? TIA Ken Davies "Cornie" <cornievs (AT) gmail (DOT) com> wrote in message news:46272eca (AT) newsgroups (DOT) borland.com... I would like to check if a website is available and then do a download from there. I have sorted the download part out, but want to check regally to see if the web site is available. My clients mostly use dial-up connections, so I want to "ping" the web site about every 5 min and if found then download the file. I would appreciate any help and thanks for a wonderful set of components and this forum that makes my life a lot easier. I am a novice in the Internet area, so thank you for all the help and hints. I appreciate the time and effort everybody put into this. Regards Cornie van Schoor InfoStar Software South Africa Back to top Remy Lebeau (TeamB) Guest Posted: Thu May 03, 2007 5:54 am    Post subject: Re: Howdo I "ping" and web address "Ken Davies" <krdavies (AT) ivojo (DOT) co.uk> wrote in message news:4627969e$1 (AT) newsgroups (DOT) borland.com... Quote: The problem I have is that the Indy ping works fine in XP but fails in Vista. Indy's ping component required admin rights. This is because of its use of RAW sockets. 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