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How come I can ping back and forth between host and guest using VirtualBox, but I can't access from the host the web server installed in the guest. I'm using a host-only network.

Host Ubuntu 10.10 
vboxnet0 -
ping to self, works
ping to guest, works
access to web server in guest, FAILS

Guest Fedora 13
eth1 -
ping to self, works
ping to host, works
access to web server in host, works
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It would help if we knew OS type, application type (Apache2, yes but is it a LAMP or WAMP setup)... What about subnetting or alike ? More info is needed – Entity_Razer Nov 24 '10 at 9:48
I chose host-only network because with NAT you must use port forwarding and I wanted to avoid that. Apparently port forwarding is needed with a host-only network too. – givanse Nov 24 '10 at 17:31
up vote 6 down vote accepted

Check firewall settings and possibly access restrictions in httpd config on the guest.

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Fedora comes with a firewall... I didn't know that... – givanse Nov 24 '10 at 23:06

Do you have a web proxy configured in your browser by chance?

I am also going out on a limb - can the virtual server access the local web server on itself? Is there a Linux firewall in place that is blocking access to port 80 from non-local hosts?

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nop, netiher firefox or chrome use a proxy – givanse Nov 24 '10 at 21:39

What I found fixed the issue for me was making sure that the windows VirtualHost-Only adapter was set to the .1 address for the ip range so my virtual box host only adapter was but the ip for the Windows adapter is

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