Package: netbase
Version: 5.4
Severity: normal

Dear Maintainer,

Port 853 has been assigned to encrypted DNS communications between stub 
resolver and full resolver : 

domain-s 853 tcp DNS query-response protocol run over TLS/DTLS
domain-s 853 udp DNS query-response protocol run over TLS/DTLS

(see 
https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=domain-s)

Most of DNS resolvers softwares are now at least DNS-over-TLS capable (Unbound, 
Knot-resolver, PowerDNS recusor...) and some major public DNS services are 
available using TLS (see 
https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Public+Resolvers)

Could port 853 be added to /etc/services ?

Thanks

-- System Information:
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 9.4 (stretch)
Release:        9.4
Codename:       stretch
Architecture: armv7l

Kernel: Linux 4.14.71-v7+ (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), 
LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

-- Configuration Files:
/etc/services changed [not included]

-- no debconf information

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