determining if browser is on same machine as server
I am working on the access to my kiosk system, one condition I need to handle in a unique way is when a web browser is run on the same physical machine as Apache. It is obvious when using localhost or 127.0.0.1. But when the URL is the machine name, I seem to be getting an IP address. I do see in r-server-server_hostname, is there any way to convert that into the IP address? Sam
Re: determining if browser is on same machine as server
Sam, From what I know, which is not much, a server name could be any ID given to a computer. It could be an IP, it could be a domain or subdomain, or it could be any ID defined in a /etc/hosts or equivelent (which would only have to be defined on the visitor's computer). I believe this value is defined to be whatever your VirtualHost is defined to be. There could be ServerAliases which resolve better than the actual servername. You can try a local getbyhostname() (which may be OS-dependent an/or deprecated) or something similar, but there is no gurantee you will get a good reverse-IP-lookup resolve. Try searching the web for man getbyhostname. You may need to find something newer to handle IPv6 addresses (if that is a concern). It is true that when a visitor uses localhost to access a webserver, it is translated into 127.0.0.1 (I believe on both sides). I know it's not the best and most definitive answer, but I hope it helps a little. Dave On 5/9/07, Sam Carleton [EMAIL PROTECTED] wrote: I am working on the access to my kiosk system, one condition I need to handle in a unique way is when a web browser is run on the same physical machine as Apache. It is obvious when using localhost or 127.0.0.1. But when the URL is the machine name, I seem to be getting an IP address. I do see in r-server-server_hostname, is there any way to convert that into the IP address? Sam -- David Wortham Senior Web Applications Developer Unspam Technologies, Inc. (408) 338-8863
Re: determining if browser is on same machine as server
Sam, I knew I missed something. There is a C-string containing the local_ip of the server in the conn_rec struct. I believe the access from a request_rec would be r-connection-local_ip Dave On 5/9/07, David Wortham [EMAIL PROTECTED] wrote: Sam, From what I know, which is not much, a server name could be any ID given to a computer. It could be an IP, it could be a domain or subdomain, or it could be any ID defined in a /etc/hosts or equivelent (which would only have to be defined on the visitor's computer). I believe this value is defined to be whatever your VirtualHost is defined to be. There could be ServerAliases which resolve better than the actual servername. You can try a local getbyhostname() (which may be OS-dependent an/or deprecated) or something similar, but there is no gurantee you will get a good reverse-IP-lookup resolve. Try searching the web for man getbyhostname. You may need to find something newer to handle IPv6 addresses (if that is a concern). It is true that when a visitor uses localhost to access a webserver, it is translated into 127.0.0.1 (I believe on both sides). I know it's not the best and most definitive answer, but I hope it helps a little. Dave On 5/9/07, Sam Carleton [EMAIL PROTECTED] wrote: I am working on the access to my kiosk system, one condition I need to handle in a unique way is when a web browser is run on the same physical machine as Apache. It is obvious when using localhost or 127.0.0.1. But when the URL is the machine name, I seem to be getting an IP address. I do see in r-server-server_hostname, is there any way to convert that into the IP address? Sam -- David Wortham Senior Web Applications Developer Unspam Technologies, Inc. (408) 338-8863 -- David Wortham Senior Web Applications Developer Unspam Technologies, Inc. (408) 338-8863
