Re: ubuntu-mirrors Digest, Vol 109, Issue 4

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Re: ubuntu-mirrors Digest, Vol 109, Issue 4

Petar Marić
Hi Vivien,

I'm managing the official country level mirrors in Serbia for CTAN (Comprehensive TeX Archive Network), Ubuntu, Arch Linux, MariaDB, CentOS, Debian and MX Linux.

I'd like to start by saying that not all of us have the option of having IPv6 connectivity to our servers (academic network in my case). Furthermore https://www.google.com/intl/en/ipv6/statistics.html shows that IPv6 has less than 30% world penetration, and only about 0.02% in Serbia (similar to Croatia AFAIK).

> The absence of IPv6 is blocking for servers that no longer have IPv4 connectivity,  

I understand your concern, but what about the *Desktop* users that predominately still don't have IPv6 access - like the 99.98% of people in my country?

If your proposal is accepted, and becomes a hard requirement for mirrors, I'll be forced to retire my 5 year old mirror.

Cheers,

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Today's Topics:

   1. Re: IPv6 for country mirrors (Vivien GUEANT - LaFibre.info)


----------------------------------------------------------------------

Message: 1
Date: Wed, 13 May 2020 16:58:59 +0200
From: "Vivien GUEANT - LaFibre.info" <[hidden email]>
To: [hidden email]
Subject: Re: IPv6 for country mirrors
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Hello,

I propose to put in the prerequisites of "country mirror" to offer IPv6
starting from January 1, 2021.

There are relatively few countries where the default server does not
offer IPv6, this concerns 18 countries: Azerbaijan, Belarus, Costa Rica,
Croatia, Estonia, Georgia, Germany, Greenland, Japan, Kuwait, Latvia,
Nepal, Portugal, Romania, Serbia, Turkey, Ukraine and Uzbekistan.

This is very surprising for Germany, a country where there are ten
mirrors with 10 Gbps (they all offer IPv6 except two).

If a mirror does not offer IPv6 on January 2021, I suggest to replace it
by another voluntary host which offers IPv6 or by Canonical servers,
already used as "country mirror" in many countries (United States,
Canada, Mexico, China, United Kingdom, Spain, Hungary, Czech Republic,...)

Statistics on the "country mirror" are attached.

The absence of IPv6 is blocking for servers that no longer have IPv4
connectivity, as Michael Hock explains :

Le 03/05/2020 à 15:56, Michael Hock a écrit :
> Hi all,
>
> I hope this is the right place to discuss this.
> I'm responsible for a couple of hundred servers which run ubuntu
> server 16.04/18.04/20.04. Also there are many virtual machines
> running, including databases, webservers, monitoring, ... but most of
> them only have IPv6 connectivity to the public internet. As all of you
> might know, for leased IPv4 addresses you usually have to pay some
> money and for many (internal) services IPv4 is just not needed any more.
>
> So the problem here is, most of the country specific ubuntu mirrors
> are not IPv6 enabled. So what are we doing? In our head location we
> use IPv4 NAT (country mirror not providing IPv6 there), in remote
> locations "just use the US mirror, it has IPv6".
>
> Would it be possible to provide sort of a fallback IPv6 address for
> all the country specific mirrors, so it would at least work if there
> is only IPv6 connectivity to the public internet?
> Reaching out to individual mirror operators was not successful (tried
> to contact a few, they're not seeing it in their responsibility to
> provide IPv6 connectivity to their mirrors).
>
> I would provide a couple of IPv6 only mirrors for some locations by
> myself, but of course it's impossible for me to provide mirrors for
> every country.
> So I hope there are more people willing to either upgrade their
> current mirrors to also provide IPv6, or to set up additional (IPv6
> only) mirrors which are then added as DNS AAAA records to existing
> country specific mirrors.
>
> Looking forward to hear your opinion on this.

Best regards,
Vivien GUEANT (not a Canonical employee, just a mirror operator of
fr.archive.ubuntu.com)
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Re: ubuntu-mirrors Digest, Vol 109, Issue 4

Vivien GUEANT - LaFibre.info
Hi Petar,

In my suggestion, IPv6 is a prerequisite to be "country mirror", but IPv4 also: It is not a question of stopping IPv4, but of offering both: IPv4 + IPv6 (dual stack).

For your case, one solution could be to offer IPv6 connectivity via another server in Serbia or outside Serbia. Concretely, if you wish, my French server can host IPv6 for your mirror: Concretely add a DNS record: AAAA 2001:860:f70a::2 on on174027.ftn.uns.ac.rs

This allows your mirror to continue serving IPv4 clients while allowing servers that only have IPv6 to be able to access updates.

Cheers,
Vivien

Note: If you want to use my server for IPv6, I must first configure your domain name on my server.

Le 14/05/2020 à 10:56, Petar Marić a écrit :
Hi Vivien,

I'm managing the official country level mirrors in Serbia for CTAN (Comprehensive TeX Archive Network), Ubuntu, Arch Linux, MariaDB, CentOS, Debian and MX Linux.

I'd like to start by saying that not all of us have the option of having IPv6 connectivity to our servers (academic network in my case). Furthermore https://www.google.com/intl/en/ipv6/statistics.html shows that IPv6 has less than 30% world penetration, and only about 0.02% in Serbia (similar to Croatia AFAIK).

> The absence of IPv6 is blocking for servers that no longer have IPv4 connectivity,  

I understand your concern, but what about the *Desktop* users that predominately still don't have IPv6 access - like the 99.98% of people in my country?

If your proposal is accepted, and becomes a hard requirement for mirrors, I'll be forced to retire my 5 year old mirror.

Cheers,



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