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[Launchpad Bug Tracker <1295003@xxxxxxxxxxxxxxxxxx>]

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I just typed under "dconf-editor", System → Proxy → ignore-hosts, the
following content:

['localhost', '127.0.0.0/8', '::1', '192.168.0.1', '2000::/3',
'fc00::/8']

But, Google Chrome (and apt-get update / upgrade) is just ignoring this
settings.

Also, Firefox doesn't honor the `ingore-hosts` settings, even
configuring it to "Use system proxy settings".

For example, my Proxy Server (Ubuntu with Squid3) is in dual-stacked
mode BUT, I do NOT want to access IPv6 web sites through the Proxy,
that's why I'm trying to ignore the entire IPv6 Internet with the entry
2000::/3 above, but, it does not work as expected.

BTW, I don't need the proxy to access Hyperboria sites, which resides
under fc00::/8 (local / private subnet) but, it doesn't work either...

Why I'm doing this?

Because my environment is already a IPv6-Only Network and, to access the
old internet infrastructure (IPv4-Only), I need to go through the dual-
stacked proxy. But I need the proxy only when a web site doesn't have
IPv6...

How can I know that it doesn't work?!

It is simple, just access a web site that shows a IPv6 address on it,
for example, http://www.sixxs.net or http://ipv6.whatismyv6.com, then,
I'm still seeing the IPv6 address of the Proxy Server, so, "ignore-hosts
entry '2000::/3'" doesn't seem to be working.

Plus, when I'm trying to access a Hyperboria website, Squid returns an
error that it can not reach `fc00::/8` network

(Squid ERROR: (101) Network is unreachable)

...of course it can't, the cjdns router is running right on my Ubuntu
Desktop, so, no need to go through proxy when browsing Hyperboria
fc00::/8 but, Ubuntu isn't honoring ignore-hosts under proxy settings.

Please guys, Linux is a O.S. built for networks! How can "Ubuntu Proxy
Setup" be so simplistic?! And it doesn't even work!

I already tried askubuntu.com but, no answer there, look:
http://askubuntu.com/questions/435163/how-to-make-ubuntu-honor-ignore-
hosts-proxy-settings-for-ipv6

I really appreciate any help! This is a serious problem.

Thanks!
Thiago

** Affects: d-conf (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
-- 
Ubuntu does not honor “ignore-hosts” proxy settings for IPv6
https://bugs.launchpad.net/bugs/1295003
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