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On 16/03/12 11:48, paul sutton wrote: > > Just confused what the other numbers mean, i understand the local > host address (loopback) what is the 127.0.1.1 referring to my local > machine, what is 127.0.1.1?, as it seems to the same thing as > 127.0.0.1 if i enter it in to a web browser my website comes up (well > the test version as I have apache running) Yes, the other 127.0.1.1 is a localhost. All IPv4 addresses starting 127 are typically mapped to the loopback device. Client have an Windows machine where one program listens for mail (SMTP) on 127.0.0.1 and forwards it to another mail server listening on 127.0.0.2. I think some versions of NTPd use to do something with some other 127/8 addresses, but it is pretty unusual to do much with them. The others all IPv6 as the names imply. http://en.wikipedia.org/wiki/Loopback -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq