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Re: Repository Problem

On 08/18/2018 01:54 PM, Brian wrote:
On Sat 18 Aug 2018 at 13:46:31 -0400, Stephen P. Molnar wrote:

On 08/18/2018 11:51 AM, Reco wrote:

On Sat, Aug 18, 2018 at 11:13:04AM -0400, Stephen P. Molnar wrote:
On 08/18/2018 10:20 AM, Dan Ritter wrote:
On Sat, Aug 18, 2018 at 08:15:12PM +1000, David wrote:
On 18 August 2018 at 05:00, Stephen P. Molnar<s.molnar@sbcglobal.net>  wrote:
I have just installed Stretch on a new SSD on my platform.

During the installation I selected the University of Chicago mirror and
accepted the defaults plus backports.

When I fun apt-get install Thunderbird apt-get tries to log on to
prod.debian.map.fastly.net (2a04:4E42:2c::2040 and hangs. I can't find that
address anywhere in /etc/apt.  Why am I getting this behavior?
As explained at [1], the debian-security repo [2] might be provided to
you by fastly.net.

Access to the debian-security repo is important because it is the method
by which your system will receive future security updates.

Even more
important, how do I get rid of  the problem?
If by "the problem" you mean the "hang", then you need to investigate why
that is occurring.
Two cents says that he doesn't have upstream IPv6 connectivity.

If ping6 fails for both prod.debian.map.fastly.net and
www.google.com, that's a decent indicator I'm right.

Then the question is whether he expects to have IPv6
connectivity (and so it's broken) or whether he doesn't (and we
should tell Debian to stop using it).

Thank for the reply.

Where can I send the two cents?  It looks as if that's correct.

The installer installed ipv6 without giving me any choice about the matter.
Don't blame the installer for that. The way IPv6 is provided there's
nothing to configure on your host (and there's nothing to blame here either).
You network hardware (aka router), on the other hand, most surely
advertizes IPv6 prefix. So put the blame there or on your ISP.

How do I get rid of ipv6 and replace it WITH ipv4?
1) Delicate way of doing it (apply after each boot):

ip6tables -I INPUT ! -o lo -p icmp6 --icmpv6-type 134 -j DROP

2) Hardcore way of doing it (ditto):

sysctl -qw net.ipv6.conf.all.disable_ipv6=1

3) Right way of doing things:

Fix your router.


According to my AT&T BGW210 Router both ipv4 amd 1pv6 are active
What does 'ip a' give you? And 'ping -cwww.debian.org?

  Thanksfot the reply.

root@AbNormal:/home/comp# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether bc:ee:7b:5e:83:36 brd ff:ff:ff:ff:ff:ff
    inet brd scope global dynamic enp2s0
       valid_lft 86368sec preferred_lft 86368sec
    inet6 2600:1700:4280:3690::33/128 scope global dynamic
       valid_lft 1209566sec preferred_lft 1209566sec
inet6 2600:1700:4280:3690:f15f:a615:62e3:1b2d/64 scope global temporary dynamic
       valid_lft 604766sec preferred_lft 85961sec
inet6 2600:1700:4280:3690:beee:7bff:fe5e:8336/64 scope global mngtmpaddr noprefixroute dynamic
       valid_lft 1209598sec preferred_lft 1209598sec
    inet6 fe80::beee:7bff:fe5e:8336/64 scope link
       valid_lft forever preferred_lft forever

root@AbNormal:/home/comp# ping -c www.debian.org

but, without the -c switch:

PING www.debian.org(mirror-isc3.debian.org (2001:4f8:1:c::15)) 56 data bytes
--- www.debian.org ping statistics ---
12 packets transmitted, 0 received, 100% packet loss, time 11266ms


ping: bad number of packets to transmit.

Stephen P. Molnar, Ph.D.
(614)312-7528 (c)
Skype: smolnar1

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