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Groups > linux.debian.user > #158936 > unrolled thread

apt-get update hanging on security and backports.

Started byEd Jabbour <ejbr@att.net>
First post2015-10-12 03:30 +0200
Last post2015-10-13 16:10 +0200
Articles 5 — 4 participants

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  apt-get update hanging on security and backports. Ed Jabbour <ejbr@att.net> - 2015-10-12 03:30 +0200
    Re: apt-get update hanging on security and backports. Reco <recoverym4n@gmail.com> - 2015-10-12 08:40 +0200
      Re: apt-get update hanging on security and backports. Ed Jabbour <ejbr@att.net> - 2015-10-12 22:30 +0200
        Re: apt-get update hanging on security and backports. Jimmy Johnson <field.engineer@gmail.com> - 2015-10-13 03:10 +0200
        Re: apt-get update hanging on security and backports. moxalt <moxalt@riseup.net> - 2015-10-13 16:10 +0200

#158936 — apt-get update hanging on security and backports.

FromEd Jabbour <ejbr@att.net>
Date2015-10-12 03:30 +0200
Subjectapt-get update hanging on security and backports.
Message-ID<qiA65-Dv-3@gated-at.bofh.it>

[Multipart message — attachments visible in raw view] — view raw

Running Wheezy.  Recently, update has been hanging on 
http://security.debian.org/ wheezy/updates main and 
http://http.debian.net/debian wheezy-backports main.  The other repos 
at uchicago.edu  breeze through, but the two above just sit there 
waiting -- waiting -- waiting  until they finally connect.  I tried 
the redirector - http://httpredir.debian.org/debian/ wheezy-backports 
main - same hang.  Also, trying to get to the Debian irc at Freenode 
just sits there for a few minutes before connecting.  I can ping these 
sites without a hitch and traceroute shows nothing amiss.  I edited 
resolv.conf to a new DNS server, but nada.  Any  advice, pointers, 
work-arounds, etc. appreciated.

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#158942

FromReco <recoverym4n@gmail.com>
Date2015-10-12 08:40 +0200
Message-ID<qiEW6-7G0-21@gated-at.bofh.it>
In reply to#158936
	Hi.

On Sun, 11 Oct 2015 21:19:32 -0400
Ed Jabbour <ejbr@att.net> wrote:

> Running Wheezy.  Recently, update has been hanging on 
> http://security.debian.org/ wheezy/updates main and 
> http://http.debian.net/debian wheezy-backports main.  The other repos 
> at uchicago.edu  breeze through, but the two above just sit there 
> waiting -- waiting -- waiting  until they finally connect.  I tried 
> the redirector - http://httpredir.debian.org/debian/ wheezy-backports 
> main - same hang.  Also, trying to get to the Debian irc at Freenode 
> just sits there for a few minutes before connecting.  I can ping these 
> sites without a hitch and traceroute shows nothing amiss.  I edited 
> resolv.conf to a new DNS server, but nada.  Any  advice, pointers, 
> work-arounds, etc. appreciated.

Have you tested the possibility of MTU blackhole somewhere between you
and security.debian.org?

I.e. given conventional Ethernet, and normal circumstances, this should
work:

ping -s 1472 -M dont -c 4 security.debian.org

But if something just discards IP packets with MTU 1500 along the way,
such ping would fail.

Reco

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#158984

FromEd Jabbour <ejbr@att.net>
Date2015-10-12 22:30 +0200
Message-ID<qiRTk-1ps-11@gated-at.bofh.it>
In reply to#158942

[Multipart message — attachments visible in raw view] — view raw

On Monday, October 12, 2015 02:34:25 AM Reco wrote:
> 	Hi.
> 
> On Sun, 11 Oct 2015 21:19:32 -0400
> 
> Ed Jabbour <ejbr@att.net> wrote:
> > Running Wheezy.  Recently, update has been hanging on
> > http://security.debian.org/ wheezy/updates main and
> > http://http.debian.net/debian wheezy-backports main.  
> 
> Have you tested the possibility of MTU blackhole somewhere between
> you and security.debian.org?
> 
> I.e. given conventional Ethernet, and normal circumstances, this
> should work:
> 
> ping -s 1472 -M dont -c 4 security.debian.org
> 
> But if something just discards IP packets with MTU 1500 along the
> way, such ping would fail.
> 
> Reco

I ran it and got:

[Mon Oct 12]~ $ ping -s 1472 -M dont -c 4 security.debian.org
PING security.debian.org (128.61.240.73) 1472(1500) bytes of data.
1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=1 ttl=52 
time=70.3 mshttp.debian.net/
1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=2 ttl=52 
time=70.5 ms
1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=3 ttl=52 
time=70.7 ms
1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=4 ttl=52 
time=70.7 ms

Looks OK to me.  I changed the backports repo from debian.net to 
uchicago.edu and everything just flows.  Now, if I can only find the 
problem with security.debian.net, which as I understand it, has no 
trustworthy mirrors

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#158993

FromJimmy Johnson <field.engineer@gmail.com>
Date2015-10-13 03:10 +0200
Message-ID<qiWgi-7NK-11@gated-at.bofh.it>
In reply to#158984
On 10/12/2015 01:20 PM, Ed Jabbour wrote:

> Looks OK to me. I changed the backports repo from debian.net to
> uchicago.edu and everything just flows. Now, if I can only find the
> problem with security.debian.net, which as I understand it, has no
> trustworthy mirrors

I'm not using backports, but for security I'm using 
http://security.debian.org/ wheezy/updates main contrib non-free and 
it's working with no problem.

I hope that helps.
-- 
Jimmy Johnson

Debian - Wheezy - KDE 4.8.4 - AMD64 - EXT4 at sda1
Registered Linux User #380263

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#159039

Frommoxalt <moxalt@riseup.net>
Date2015-10-13 16:10 +0200
Message-ID<qj8r9-ok-51@gated-at.bofh.it>
In reply to#158984
On Mon, 12 Oct 2015 16:20:11 -0400, Ed Jabbour <ejbr@att.net> wrote:

> On Monday, October 12, 2015 02:34:25 AM Reco wrote:
> > 	Hi.
> > 
> > On Sun, 11 Oct 2015 21:19:32 -0400
> > 
> > Ed Jabbour <ejbr@att.net> wrote:
> > > Running Wheezy.  Recently, update has been hanging on
> > > http://security.debian.org/ wheezy/updates main and
> > > http://http.debian.net/debian wheezy-backports main.  
> > 
> > Have you tested the possibility of MTU blackhole somewhere between
> > you and security.debian.org?
> > 
> > I.e. given conventional Ethernet, and normal circumstances, this
> > should work:
> > 
> > ping -s 1472 -M dont -c 4 security.debian.org
> > 
> > But if something just discards IP packets with MTU 1500 along the
> > way, such ping would fail.
> > 
> > Reco
> 
> I ran it and got:
> 
> [Mon Oct 12]~ $ ping -s 1472 -M dont -c 4 security.debian.org
> PING security.debian.org (128.61.240.73) 1472(1500) bytes of data.
> 1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=1 ttl=52 
> time=70.3 mshttp.debian.net/
> 1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=2 ttl=52 
> time=70.5 ms
> 1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=3 ttl=52 
> time=70.7 ms
> 1480 bytes from sechter.debian.org (128.61.240.73): icmp_req=4 ttl=52 
> time=70.7 ms
> 
> Looks OK to me.  I changed the backports repo from debian.net to 
> uchicago.edu and everything just flows.  Now, if I can only find the 
> problem with security.debian.net, which as I understand it, has no 
> trustworthy mirrors

You should try using http://ftp.acc.umu.se/debian/ for your stable,
stable-updates and such. By far the best and fastest Debian mirror I know of.
For security, try using http://security.debian.org/ as opposed to .net.

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