Installing iptables on OpenVZ Gentoo guest

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Installing iptables on OpenVZ Gentoo guest
\ Yahya Mohammad (25 Dec 2007)

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Subject:	Installing iptables on OpenVZ Gentoo guest
Group:	Gentoo-user
From:	Yahya Mohammad
Date:	25 Dec 2007

I'm running a Gentoo guest on an openvz kernel version
2.6.18-8.1.14.el5.028stab045.1 (redhat I think). When I tried to
emerge iptables portage wanted to pull in gentoo-sources. After
reading the portage man page I worked around this by adding
'sys-kernel/gentoo-sources-2.6.23-r3' to
/etc/portage/profile/package.provided. Then I manually extracted a
vanilla 2.6.18 kernel in /usr/src and created the 'linux' symlink.
iptables emerged ok after this and seems to work. I have a couple of
questions though:

- What happens when gentoo-sources-2.6.23-r3 is obsoleted and removed
from the portage tree? Will I have to update package.provided down the
road?
- Should I have applied all the underlying distro's patches to the
vanilla sources before compiling iptables? Or should I have applied
Gentoo's patches? i.e. are the headers used by iptables stable or are
they likely to have been modified?
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