[IPv6crawler-wg] Fwd: Re: Power Outage affecting you servers - 29th-31st March

[Christian de Larrinaga]

Congratulations!

C

> Olivier MJ Crepin-Leblond <mailto:ocl at gih.com>
> 31 March 2016 at 15:18
> FYI -- both servers have rebooted perfectly well after their first 48H
> beak in 590 days!
>
> reboot   system boot  2.6.18-406.el5PA Thu Mar 31 07:50          (07:11)
> reboot   system boot  2.6.18-371.9.1.e Sun Aug 17 10:12        
> (590+05:43)
>
> Kindest regards,
>
> Olivier
>
> -------- Forwarded Message --------
> Subject: 	Re: Power Outage affecting you servers - 29th-31st March
> Date: 	Thu, 31 Mar 2016 16:13:41 +0200
> From: 	Olivier MJ Crepin-Leblond <ocl at gih.com>
> To: 	Metcalf C. (iSolutions) <C.Metcalf at soton.ac.uk>, Tim Chown
> <tjc at ecs.soton.ac.uk>, Lance Draper <ld at ecs.soton.ac.uk>
> CC: 	Newman David <drn at ecs.soton.ac.uk>, Webb J.P.
> <j.p.webb at soton.ac.uk>, Olivier MJ Crepin-Leblond <ocl at gih.com>
>
>
>
> Dear Chrissie,
>
> thank you for your kind note. I have given the two machines a full
> health check and it looks like they've rebooted well and are operating
> normally.
>
> I do however note one small glitch: it looks like there might be a
> firewall issue between login.ecs.soton.ac.uk and
> crawler.ipv6matrix.org: I cannot seem to be able to SSH directly from
> login.ecs.soton.ac.uk to crawler.ipv6matrix.org whilst I can SSH into
> www.ipv6matrix.org and then SSH from there to crawler.ipv6matrix.org
>
> Alternatively, it could be a reverse DNS problem. I have done the
> following traceroutes from login.ecs.soton.ac.uk:
>
> traceroute to crawler.ipv6matrix.org (152.78.189.211), 30 hops max, 40
> byte packets
>  1  servers-router.core.ecs.soton.ac.uk (152.78.68.190)  0.761 ms 
> 0.802 ms  0.856 ms
>  2  fw2.core.ecs.soton.ac.uk (152.78.70.228)  0.653 ms  0.766 ms  0.830 ms
>  3  www.ipv6matrix.org (152.78.189.211)  1.737 ms !X  1.934 ms !X 
> 1.989 ms !X
> -bash-3.2$ traceroute www.ipv6matrix.org
> traceroute to www.ipv6matrix.org (152.78.189.209), 30 hops max, 40
> byte packets
>  1  servers-router.core.ecs.soton.ac.uk (152.78.68.190)  0.758 ms 
> 0.802 ms  0.857 ms
>  2  fw2.core.ecs.soton.ac.uk (152.78.70.228)  0.654 ms  0.770 ms  0.880 ms
>  3  elephant.ecs.soton.ac.uk (152.78.189.209)  2.313 ms  2.438 ms 
> 2.494 ms
> -bash-3.2$
>
> Strange how traceroute reverse resolves crawler.ipv6matrix.org as
> www.ipv6matrix.org and www.ipv6matrix.org as elephant.ecs.soton.ac.uk
>
> FYI the correct names should be:
> crawler.ipv6matrix.org = turtle.ipv6matrix.org = turtle.ecs.soton.ac.uk
> turtle.ecs.soton.ac.uk has address 152.78.189.211
> turtle.ecs.soton.ac.uk has IPv6 address 2001:630:d0:f104::11
>
> www.ipv6matrix.org = elephant.ipv6matrix.org = elephant.ecs.soton.ac.uk
> elephant.ecs.soton.ac.uk has address 152.78.189.209
> elephant.ecs.soton.ac.uk has IPv6 address 2001:630:d0:f104::9
>
> Kindest regards,
>
> Olivier
>
> On 31/03/2016 12:14, Metcalf C. (iSolutions) wrote:
>
> -- 
> Olivier MJ Crépin-Leblond, PhD
> http://www.gih.com/ocl.html
>
>

-- 
Christian de Larrinaga  FBCS, CITP,
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@ FirstHand
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+44 7989 386778
cdel at firsthand.net
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