From: Thomas Lamprecht <t.lamprecht@proxmox.com>
To: Proxmox Backup Server development discussion
<pbs-devel@lists.proxmox.com>,
Dietmar Maurer <dietmar@proxmox.com>,
Wolfgang Bumiller <w.bumiller@proxmox.com>
Subject: Re: [pbs-devel] [PATCH v2 backup 02/27] add dns alias schema
Date: Wed, 28 Apr 2021 18:34:00 +0200 [thread overview]
Message-ID: <dc239fdc-82c2-6ace-7821-af9fee44562e@proxmox.com> (raw)
In-Reply-To: <1707413265.1348.1619626228724@webmail.proxmox.com>
On 28.04.21 18:10, Dietmar Maurer wrote:
> Seems DNS names in general are totally unrestricted and
> may contain arbitrary binary data:
>
> https://tools.ietf.org/html/rfc2181#section-11
>
> Only host names and url are restricted.
>
> ?!
FYI, from a off-list message from Wolfgang:
>> and why now only allow as first one?
> mostly because that's what we did in PVE and because using underscores
> anywhere else is silly ;-)
> it's used for scoping, there was even an RFC draft but it's expired and only
> marked as "best current practice" whatever that's worth:
> https://tools.ietf.org/id/draft-ietf-dnsop-attrleaf-07.html#rfc.section.1.1
> so basically: we used to not allow underscores, people do use leading
> underscores for scoping, and we use it particularly for ACME aliases...
There was some confusion with which ALIAS you meant, as there's a not really
used DNS record type named "ALIAS" too (which is unrelated to that one here).
next prev parent reply other threads:[~2021-04-28 16:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-28 16:10 Dietmar Maurer
2021-04-28 16:34 ` Thomas Lamprecht [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-04-28 18:18 Dietmar Maurer
2021-04-29 6:51 ` Wolfgang Bumiller
2021-04-28 15:55 Dietmar Maurer
2021-04-29 7:12 ` Wolfgang Bumiller
2021-04-28 11:15 Dietmar Maurer
2021-04-28 11:42 ` Wolfgang Bumiller
2021-04-22 14:01 [pbs-devel] [PATCH v2 backup 00/27] Implements ACME support for PBS Wolfgang Bumiller
2021-04-22 14:01 ` [pbs-devel] [PATCH v2 backup 02/27] add dns alias schema Wolfgang Bumiller
2021-04-28 10:26 ` Dietmar Maurer
2021-04-28 11:07 ` Wolfgang Bumiller
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