URL: <https://savannah.gnu.org/bugs/?65918>
Summary: dns queries are case sensitive (2.06, probably olded
grub too)
Group: GNU GRUB
Submitter: kasakoff
Submitted: Вт 25 июн 2024 07:29:30
Category: Network
Severity: Major
Priority: 5 - Normal
Item Group: Software Error
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Release: other
Release:
Discussion Lock: Any
Reproducibility: Every Time
Planned Release: None
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Follow-up Comments:
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Date: Вт 25 июн 2024 07:29:30 By: Koskin Ilya <kasakoff>
sometimes dns response has another case than dns query. Here is the example:
nslookup ya.ru 127.0.0.1
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
Name: YA.ru
Address: 5.255.255.242
Name: YA.ru
Address: 77.88.44.242
Name: YA.ru
Address: 77.88.55.242
Name: YA.ru
Address: 2a02:6b8::2:242
Here dns server is bind 9.
Not all dns servers act like this, but anyway dns should be case insensitive,
RFC 4343.
Unfortunately grub (tested on 2.06 on fedora 40) is case sensitive, and it
cannot resolve ya.ru, but can resolve YA.ru
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