On Wed, Jun 27, 2001 at 06:56:07PM +1000, Mike Lake wrote:
> So if I was using 'localhost' which is refering to a URL that the request
> comes from then it would use ServerName:Port ie b4114:80 ?
> (Real names here now.)
> With it off (ie just now I commented it out) what would it use as
> hostname for me gives b4114
> Im a little confused between the server name and hostname.
I'm not an apache expert, I could be wrong.
If you set a ServerName and UseCanonicalName On apache will redirect
your browser to what ever you set your ServerName to.
If you don't set a ServerName and set UseCanonicalName On apache will
redirect your browser to `hostname -f`.
If you set UseCanonicalName Off (Commenting it out turned it on for me),
apache won't redirect you at all.
I think its easier to see whats happening with wget -S localhost/~mikel,
Try setting:
ServerName www.bogus.name
UseCanonicalName On
Then wget -S http://localhost/~mikel
# ServerName www.bogus.name
UseCanonicalName On
Then wget -S http://localhost/~mikel
# ServerName www.bogus.name
UseCanonicalName Off
Then wget -S http://localhost/~mikel
> Thats excellent. Yep run as root I can see it shows all the packets on the
> local interface and dumps lots when you use the browser at http://localhost
> etc. I'll have a play and see the diff with b4114.
Its probably easier to see with ping.
tcpdump -i lo icmp
then
ping -c1 localhost
And you should get:
src address dst
address
19:06:11.586106 localhost > localhost: icmp: echo request (DF)
19:06:11.586190 localhost > localhost: icmp: echo reply (DF)
ping -c1 mycomputername
19:06:13.469223 mycomputername > mycomputername: icmp: echo request (DF)
19:06:13.469307 mycomputername > mycomputername: icmp: echo reply (DF)
Your source address changes depending on which interface you are pinging.
What I think was happening was you were pointing your browser to
http://localhost/~mikel, and apache was redirecting it to
http://mycomputername/~mikel, so when your browser tried to go to
http://mycomputername/~mikel, it used as its soucre ip address
mycomputername, which was denied.
Clear as mud? :)
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