Is this possible ?
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From: Anand Sivaram on 20 May 2010 11:50 On Thu, May 20, 2010 at 19:15, <export(a)hope.cz> wrote: > Lets suppose this configuration > > |Server1| <----- |Server2| <----- |Client| > > A client sends a request that starts a script on Server2.The script ( > running on server2) from this server 2 will download a webpage from Server1. > > Is it possible to record Clients IP on Server1, instead of Server2s > IP? In other words, Server1 will think the request for downloading is > directly from Client. > That is Server2s IP will be invisible for Server1 > > Is this possbile? > Thanks > Joe. > > -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a > subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.orgArchive: > http://lists.debian.org/4BF55933.17981.BC1F689(a)export.hope.cz Since it is a different session (because your script on server2 sends the request to server1), it may not be possible. The ip packet is locally generated on server2 because of the script is trying a request to server1. Other options are the script may have to embed the ip address somehow to server1. Or avoid the script on server2 and use NAT there.
From: thib on 20 May 2010 13:20 export(a)hope.cz wrote: > Is this possbile? Look at IP address spoofing techniques, it's a broad subject. I would consider identifying the client at the application level though (add support for this to your protocol), if possible. -thib -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4BF56DBF.4090105(a)stammed.net
From: Mark Allums on 20 May 2010 16:50 On 5/20/2010 8:45 AM, export(a)hope.cz wrote: > Let's suppose this configuration > > |Server1| <----- |Server2| <----- |Client| > > A client sends a request that starts a script on Server2.The script ( > running on server2) from this server 2 will download a webpage from > Server1. > Is it possible to record Client's IP on Server1, instead of Server2's > IP? In other words, Server1 will think the request for downloading is > directly from Client. > That is Server2's IP will be “invisible” for Server1 > > Is this possbile? The diagram looks like a typical proxying situation. If you are trying to avoid having someone identify you, it may not work as well as you would like. If your goal is transparency, what you can do depends on your level of access and control of server2. If your goal is of obscurity, it may work to a degree, but there have been some news stories lately of, for instance, security researchers identifying the IP of people even though they went through Tor. So, yes, it may be possible. MAA -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4BF59E14.9030903(a)allums.com
From: Alan Chandler on 22 May 2010 16:50
On 20/05/10 14:45, export(a)hope.cz wrote: > Letâs suppose this configuration > > |Server1| <----- |Server2| <----- |Client| > > A client sends a request that starts a script on Server2.The script ( > running on server2) from this server 2 will download a webpage from > Server1. > Is it possible to record Clientâs IP on Server1, instead of Server2âs > IP? In other words, Server1 will think the request for downloading is > directly from Client. > That is Server2âs IP will be âinvisibleâ for Server1 As others have noted, you don't say what you are really trying to do. Some have assumed that it's for security reasons. But if it isn't you can always get Server2 script to add the ipaddress that called it to some query/post parameters. -- Alan Chandler http://www.chandlerfamily.org.uk -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4BF8414C.4000209(a)chandlerfamily.org.uk |