[CentOS] POOR: results using 'dig +short porttest.dns-oarc.net TXT'

Barry Brimer lists at brimer.org
Thu Jul 24 22:19:21 UTC 2008


Quoting Johnny Hughes <johnny at centos.org>:

> Larry Vaden wrote:
> > What are the likely cockpit errors involved when getting POOR results
> > when running this test on an updated CentOS 5.2?
> >
> > Kind regards/ldv
> >
> > [root at shell ~]# dig +short porttest.dns-oarc.net TXT
> > z.y.x.w.v.u.t.s.r.q.p.o.n.m.l.k.j.i.h.g.f.e.d.c.b.a.pt.dns-oarc.net.
> > "a.b.c.d is POOR: 26 queries in 1.3 seconds from 1 ports with std dev 0.00"
>
> if this is a centos machine (your dns server) ... you may have a line
> like this in the config named.conf file:
>
>   query-source address * port 53;

Or you may be forwarding to an unpatched DNS server, or you may be behind a NAT
devices that remaps the source ports on outgoing requests.



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