[lxc-users] iptables-save not working in unprivileged containers?

Fiedler Roman Roman.Fiedler at ait.ac.at
Mon Nov 9 16:55:50 UTC 2015


> Von: Tomasz Chmielewski [mailto:mangoo at wpkg.org]
> 
> On 2015-11-10 01:22, Fiedler Roman wrote:
> 
> >> # iptables -A INPUT -p tcp --dport 22 -j ACCEPT
> >
> > Yes, also here.
> >
> > Compare
> >
> > iptables-save
> >
> > with
> >
> > iptables-save -t filter
> >
> > Later should work. I think, that some special tables cannot be read in
> > unpiv
> > (mangle perhaps).
> 
> It seems to behave just like "iptables-save" executed by non-root user
> (in non-container).

Not on this side:

* Normal user:

$ iptables-save -t filter
iptables-save v1.4.21: Cannot initialize: Permission denied (you must be
root)

* As root in unpriv container: 

# iptables-save -t filter
# Generated by iptables-save v1.4.21 on Mon Nov  9 16:55:27 2015
*filter
:INPUT DROP [0:0]
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