Toolbox: /etc/resolv.conf๋Š” ํ˜ธ์ŠคํŠธ์˜ ์ ˆ๋Œ€ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์ผ ๋•Œ ๊นจ์ง‘๋‹ˆ๋‹ค.

์— ๋งŒ๋“  2019๋…„ 06์›” 07์ผ  ยท  19์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: containers/toolbox

systemd-resolved๋Š” /etc/resolv.conf ๋ฅผ ๋‹ค๋ฅธ ์œ„์น˜( /run/systemd/resolve ์•„๋ž˜)์— ์‹ฌ๋ณผ๋ฆญ ๋งํฌํ•ฉ๋‹ˆ๋‹ค. ํ˜ธ์ŠคํŠธ ๋ณผ๋ฅจ /etc๊ฐ€ ๋งˆ์šดํŠธ๋˜๋ฉด ์ด ์œ„์น˜๋Š” ๋ฌผ๋ก  ์กด์žฌํ•˜์ง€ ์•Š์œผ๋ฏ€๋กœ ์ปจํ…Œ์ด๋„ˆ ๋‚ด์˜ ๋ชจ๋“  ํ˜ธ์ŠคํŠธ ์ด๋ฆ„ ์•ก์„ธ์Šค๊ฐ€ ์‹คํŒจํ•ฉ๋‹ˆ๋‹ค.

๊ฐ€์žฅ ์œ ์šฉํ•œ ๋Œ“๊ธ€

๋‚˜๋Š” ์–ผ๋งˆ ์ „์— PR #380์—์„œ ์ด์— ๋Œ€ํ•œ ์ˆ˜์ • ์‚ฌํ•ญ์„ ๋ณด๋ƒˆ์Šต๋‹ˆ๋‹ค.

๋ชจ๋“  19 ๋Œ“๊ธ€

์˜ˆ, ์ž‘๋™ํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. mount /run๋„ ๋ฐ”์ธ๋”ฉํ•˜๊ฑฐ๋‚˜ flatpak-spawn ์œ ์ง€ ๋ณต์‚ฌ๋ณธ์„ ์‚ฌ์šฉํ•˜๋„๋ก ์ „ํ™˜ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

ls -l /etc/resolv.conf ๋Š” ํ˜ธ์ŠคํŠธ์— ๋ฌด์—‡์„ ํ‘œ์‹œํ•ฉ๋‹ˆ๊นŒ? ์—ฌ๊ธฐ์— ์ถœ๋ ฅ์„ ๋ถ™์—ฌ๋„ฃ์–ด ์ฃผ์‹œ๊ฒ ์Šต๋‹ˆ๊นŒ?

lrwxrwxrwx. 1 root root 32 Jun  6 13:23 /etc/resolv.conf -> /run/systemd/resolve/resolv.conf

ํ•ด๊ฒฐ๋œ ๋ฌธ์„œ ์–ธ๊ธ‰ ์ฒ˜๋Ÿผ .

๋”ฐ๋ผ์„œ Ubuntu๋Š” 16.04๋ถ€ํ„ฐ

๊ฐ€์žฅ ์ข‹์€ ๋ฐฉ๋ฒ•์€ /etc/resolv.conf ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋ฅผ /run/host/monitor/resolv.conf flatpak-session-helper ์—์„œ ์œ ์ง€ ๊ด€๋ฆฌํ•˜๋Š” ๋ณต์‚ฌ๋ณธ์œผ๋กœ ์ „ํ™˜ํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.

๊ทธ๋Ÿฌ๋‚˜ ์˜๋„ํ•˜์ง€ ์•Š์€ ๋‚™์ง„์„ ํ”ผํ•˜๊ธฐ ์œ„ํ•ด https://github.com/flatpak/flatpak/pull/2916 ์ด ๋” ๋„๋ฆฌ ์„ค์น˜๋˜๊ธฐ๋ฅผ ์กฐ๊ธˆ ๋” ๊ธฐ๋‹ค๋ฆฌ๊ณ  ์‹ถ์Šต๋‹ˆ๋‹ค. ๊ถ๊ทน์ ์œผ๋กœ Toolbox์˜ ์ฃผ์š” ์‚ฌ์šฉ ์‚ฌ๋ก€๋Š” Silverblue์ด๋ฉฐ systemd-resolved๋ฅผ ์‚ฌ์šฉํ•˜์ง€ ์•Š์œผ๋ฏ€๋กœ ์„ ํ˜ธํ•˜๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค.

flatpak/flatpak#2916์„ ์กฐ๊ธˆ ๋” ๊ธฐ๋‹ค๋ ค๋ณด๊ณ  ์‹ถ์Šต๋‹ˆ๋‹ค.
์˜๋„ํ•˜์ง€ ์•Š์€ ๋‚™์ง„์„ ํ”ผํ•˜๊ธฐ ์œ„ํ•ด ๋” ๋„๋ฆฌ ์„ค์น˜๋ฉ๋‹ˆ๋‹ค.
๊ถ๊ทน์ ์œผ๋กœ Toolbox์˜ ์ฃผ์š” ์‚ฌ์šฉ ์‚ฌ๋ก€๋Š” Silverblue์ด๋ฉฐ
systemd-resolved์ด๋ฏ€๋กœ ๊ทธ๊ฒƒ์— ์ฐฌ์„ฑํ•˜๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค.

https://github.com/flatpak/flatpak/pull/2916 ์€ Flatpak 1.4.0์— ๋„์ž…๋˜์—ˆ์œผ๋ฉฐ Fedora 29์—๋Š” ๋„ˆ๋ฌด ์ƒˆ๋กญ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ Fedora 29๊ฐ€ ๋‹จ์ข…๋  ๋•Œ๊นŒ์ง€ ๊ธฐ๋‹ค๋ ค์•ผ ํ•ฉ๋‹ˆ๋‹ค. ์ด ๋ณ€ํ™”.

๊ทธ๋ž˜์„œ ์šฐ๋ฆฌ๋Š” ํŽ˜๋„๋ผ (29)๋Š” ์ตœ์ข… ์™ธ ๋•Œ๊นŒ์ง€ ๊ธฐ๋‹ค๋ฆด ํ•„์š”๊ฐ€ ์ˆ˜๋ช…์ด : D๋ฅผ ์šฐ๋ฆฌ๋Š”์ด ๋ณ€ํ™”ํ•˜๊ธฐ ์ „์—.

๋‚ ์งœ๊ฐ€ ๋‹ค๊ฐ€์˜ค๊ณ  ์žˆ๋Š”๋ฐ ์ด์— ๋Œ€ํ•œ ์ž‘์—…์ด ์žˆ์Šต๋‹ˆ๊นŒ? ๋‹จ์ˆœํžˆ ๋งŽ์€ ๊ตฌ์„ฑ์—์„œ ์ž‘๋™ํ•˜์ง€ ์•Š๋Š” ๊ฒƒ์€ ์•ฝ๊ฐ„์˜ ๋ฌธ์ œ์ž…๋‹ˆ๋‹ค...

ํŽธ์ง‘ : ๋‹น์‹ ์ด ์‚ฌ์šฉํ•˜๋Š” ๋„๊ตฌ ์ƒ์ž๋ฅผ ์ˆ˜์ •ํ•  ์ˆ˜์žˆ๋Š” ๊ฒƒ ๊ฐ™๋‹ค /run/host/monitor/resolv.conf ๋Œ€์‹  /run/host/etc/resolv.conf .

/run/host/monitor/resolv.conf์™€ ํ•จ๊ป˜ ์ž‘๋™ํ•˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค. ๋งํฌ๊ฐ€ ์ƒ์ž๋ฅผ ์ค‘์ง€ํ•˜๊ณ  ๋‹ค์‹œ ์‹œ์ž‘ํ•˜๋„๋ก ์„ค์ •ํ–ˆ์Šต๋‹ˆ๋‹ค. ๋งํฌ๋Š” ๊ทธ๋Œ€๋กœ ์œ ์ง€๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

๋‚˜๋Š” ์ฃผ์œ„์˜ ์ž‘ํ’ˆ '@TingPing์™€์˜ ๊ฒฐ๊ณผ๋ฅผ'@fansari ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. Fedora 31 Workstation, toolbox-0.0.17-1.fc31.src.rpm , podman-1.6.2-2.fc31.src.rpm ๋ฐ registry.fedoraproject.org/f31/fedora-toolbox 31 a198bc8c3cda 4 weeks ago 448 MB ํ•˜๊ณ  ์žˆ๋Š”๋ฐ ์ด ๋ฌธ์ œ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๋ฐ ๋„์›€์ด ๋˜๋Š” ๋‹ค๋ฅธ ์„ธ๋ถ€์ •๋ณด๋ฅผ ์ œ๊ณตํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ์•Œ๋ ค์ฃผ์„ธ์š”(๋ง์žฅ๋‚œ ์—†์Œ).

์ด ๋ฌธ์ œ๋Š” ์–ธ์ œ ์ˆ˜์ •๋˜๋‚˜์š”? ์ด์ œ ๋‹ค์‹œ /run/host/monitor ๋””๋ ‰ํ† ๋ฆฌ(Fedora 31์—๋Š” ์กด์žฌํ•˜์ง€ ์•Š์Œ)๋ฅผ ์ƒ์„ฑํ•˜์—ฌ NetworkManager ๋งํฌ๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  resolv.conf๋ฅผ ๊ฑฐ๊ธฐ์— ๋ฐฐ์น˜ํ–ˆ์Šต๋‹ˆ๋‹ค.

๋„๊ตฌ ์ƒ์ž๋Š” ์ด ๋ฌธ์ œ ์—†์ด NetworkManager์™€ ํ•จ๊ป˜ ์ž‘๋™ํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

๋„๊ตฌ ์ƒ์ž์—์„œ /etc/resolv.conf ์— ์‚ฌ์šฉ์ž ์ง€์ • DNS ์„œ๋ฒ„๋ฅผ ์ถ”๊ฐ€ํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค. ๋‚˜๋Š” ๊ทธ๊ฒƒ์„ ๋ณต์‚ฌํ•˜๊ณ  ์—ฐ๊ฒฐ์„ ๋Š๊ณ  ๋‹ค์‹œ ๋ณต์‚ฌํ•ด์•ผํ–ˆ์Šต๋‹ˆ๋‹ค.

๋ฌธ์ œ๋Š” Fedora 31 /etc/resolv.conf ๊ฐ€ /run/host/etc/resolv.conf ์— ๋Œ€ํ•œ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์ด๋ฉฐ /var/run/NetworkManager/resolv.conf ๋Œ€ํ•œ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์ด๋ฉฐ ์ด ํŒŒ์ผ์€ ์‚ฌ์šฉํ•˜์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์— ์ปจํ…Œ์ด๋„ˆ์— ์กด์žฌํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋„คํŠธ์›Œํฌ ๋งค๋‹ˆ์ €.

์ด ๋ฌธ์ œ๋ฅผ ๋ฐฉ์ง€ํ•˜๋ ค๋ฉด registry.fedoraproject.org/f31/fedora-toolbox:31 ์ด๋ฏธ์ง€๋ฅผ ์ˆ˜์ •ํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

์ด ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์„ ์ฐพ์•˜์Šต๋‹ˆ๋‹ค.

โฌข[ichavero<strong i="12">@toolbox</strong> ~]$ sudo -i
sudo: setrlimit(RLIMIT_CORE): Operation not permitted
โฌข[root<strong i="13">@toolbox</strong> ~]# ping google.com
ping: google.com: Name or service not known
โฌข[root<strong i="14">@toolbox</strong> ~]# mkdir /var/run/NetworkManager
โฌข[root<strong i="15">@toolbox</strong> ~]# echo "nameserver 192.168.1.254" > /var/run/NetworkManager/resolv.conf
โฌข[root<strong i="16">@toolbox</strong> ~]# ping -c2 google.com
PING google.com (216.58.217.14) 56(84) bytes of data.
64 bytes from qro02s15-in-f14.1e100.net (216.58.217.14): icmp_seq=1 ttl=57 time=6.74 ms
64 bytes from qro02s15-in-f14.1e100.net (216.58.217.14): icmp_seq=2 ttl=57 time=5.63 ms

--- google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 5.632/6.187/6.742/0.555 ms
โฌข[root<strong i="17">@toolbox</strong> ~]# 

๋‚˜๋Š” ์–ผ๋งˆ ์ „์— PR #380์—์„œ ์ด์— ๋Œ€ํ•œ ์ˆ˜์ • ์‚ฌํ•ญ์„ ๋ณด๋ƒˆ์Šต๋‹ˆ๋‹ค.

#380 ์„ ํ…Œ์ŠคํŠธํ–ˆ๋Š”๋ฐ systemd-resolved ์™€ ํ•จ๊ป˜ ์ž˜ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค.

๊ฐ์‚ฌ ํ•ด์š”

Fedora 32 Silverblue์šฉ ๋„๊ตฌ ์ƒ์ž๋ฅผ ๋งŒ๋“ค์—ˆ๋Š”๋ฐ ๋™์ผํ•œ ๋ฌธ์ œ๊ฐ€ ๋‹ค์‹œ ๋ฐœ์ƒํ–ˆ์Šต๋‹ˆ๋‹ค.
๋น ๋ฅธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์€ ๋‹ค์‹œ /etc/resolv.conf ๋งํฌ๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  /run/host/monitor.resolv.conf๋กœ ์„ค์ •ํ•˜๋Š” ๊ฒƒ์ด์—ˆ์Šต๋‹ˆ๋‹ค.

24 ์ดํ›„๋กœ ์—…๊ทธ๋ ˆ์ด๋“œ ๋œ Fedora 31 WS์—์„œ ์ง€๊ธˆ์ด ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•˜๊ณ  ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ๋ˆ„๊ตฐ๊ฐ€ Martin์˜ PR 380์„ ๋ณ‘ํ•ฉํ•  ์ˆ˜ ์žˆ๋‹ค๋ฉด ์ข‹์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋” ๋งŽ์€ ๋ฌธ์ œ๋ฅผ ์•ผ๊ธฐํ•˜๊ธฐ๋งŒ ํ•˜๋ฉด ์ตœ๊ณ ์˜ ์†Œํ”„ํŠธ์›จ์–ด๋Š” ์•„๋ฌด ์†Œ์šฉ์ด ์—†์Šต๋‹ˆ๋‹ค.

์šฐ๋ฆฌ๊ฐ€ ๊ทธ ์ •์ƒ์— ๋จธ๋ฌผ๊ณ  ์žˆ๋Š”์ง€ ํ™•์ธํ•˜์‹ญ์‹œ์˜ค :)
Fedora๋Š” Fedora 33( ๋งํฌ )์—์„œ ๊ธฐ๋ณธ์ ์œผ๋กœ systemd-resolved ๋ฅผ ํ™œ์„ฑํ™”ํ•˜๋Š” ๊ฒƒ์„ ๋ชฉํ‘œ๋กœ ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

์ด๊ฒƒ์€ https://bugzilla.redhat.com/show_bug.cgi?id=1785244 ์—์„œ๋„ ์ถ”์ ๋ฉ๋‹ˆ๋‹ค.

๋ฌธ์ œ๋Š” Fedora 31์—์„œ /etc/resolv.conf ๊ฐ€ ์— ๋Œ€ํ•œ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋ผ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
/run/host/etc/resolv.conf ๋Š” ์ฐจ๋ก€๋กœ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์ž…๋‹ˆ๋‹ค.
/var/run/NetworkManager/resolv.conf , ์ด ํŒŒ์ผ์€ ์— ์กด์žฌํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
NetworkManager๋ฅผ ์‚ฌ์šฉํ•˜์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์— ์ปจํ…Œ์ด๋„ˆ.

์Œ... ๋ณ„๋กœ.

๋‹น์‹ ์ด ์˜๋ฏธํ•˜๋Š” ๋ฐ”๋Š” Fedora 31 ํ˜ธ์ŠคํŠธ์—์„œ /etc/resolv.conf ๊ฐ€ /run/NetworkManager/resolv.conf /var/run ์— ๋Œ€ํ•œ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋ผ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค ( /run ๋Œ€ํ•œ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์ด๊ธฐ ๋•Œ๋ฌธ์—) .

/etc/resolv.conf ๋Š” Fedora 33 ์ด์ „์˜ ๋ชจ๋“  Fedora ํ˜ธ์ŠคํŠธ์—์„œ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋ฅผ ์˜๋ฏธํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. Fedora 33๋ถ€ํ„ฐ๋Š” systemd-resolved ์˜ํ•ด ๊ด€๋ฆฌ๋˜๋ฉฐ ์‹ค์ œ๋กœ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๊ฐ€ ๋ฉ๋‹ˆ๋‹ค. ๊ฐ€์ƒ ๋จธ์‹  ๋“ฑ์— Fedora < 33 ์‹œ์Šคํ…œ์„ ์ฒ˜์Œ๋ถ€ํ„ฐ ์„ค์น˜ํ•˜์—ฌ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๊ทธ๋Ÿฌ๋‚˜ ์˜ค๋ž˜๋œ(๋˜๋Š” ํ†ต๊ณผํ•˜๋Š”?) NetworkManager ๋ฒ„๊ทธ ๋กœ ์ธํ•ด ๋ช‡ ๋…„ ๋™์•ˆ ํ•œ ๋ฆด๋ฆฌ์Šค์—์„œ ๋‹ค๋ฅธ ๋ฆด๋ฆฌ์Šค๋กœ ์ผ๋ จ์˜ ์—…๊ทธ๋ ˆ์ด๋“œ๋ฅผ ๊ฑฐ์นœ Fedora ์‹œ์Šคํ…œ์€ /etc/resolv.conf ๊ฐ€ ์–ธ๊ธ‰ํ•œ ๋Œ€๋กœ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋กœ ๋๋‚  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. .

Fedora 33์—์„œ ์ž„๋ฐ•ํ•œ systemd-resolved ๋ณ€๊ฒฝ ์‚ฌํ•ญ์— ๋Œ€ํ•œ ์—…๋ฐ์ดํŠธ์ž…๋‹ˆ๋‹ค.

๊ธฐ๋ณธ์ ์œผ๋กœ Fedora๋Š” /etc/resolv.conf ์— ๋Œ€ํ•œ ์ƒ๋Œ€ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋กœ ../run/systemd/resolve/stub-resolv.conf ๋ฅผ ์ œ๊ณตํ•˜๋ฉฐ Ubuntu๋„ ๋งˆ์ฐฌ๊ฐ€์ง€์ž…๋‹ˆ๋‹ค. ์ด๊ฒƒ์€ ์ปค๋ฐ‹ d63b0a9c0f1cd8a137ebc818b297f3b9303b5c32 ๋•Œ๋ฌธ์— Toolbox 0.0.14๋ถ€ํ„ฐ ์ด๋ฏธ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค.

์ด ์ƒํ™ฉ์€ ์ƒ๋Œ€ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์˜ ์ด์ ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ์ ‘๋‘์‚ฌ ๋˜๋Š” ๋ฃจํŠธ๊ฐ€ ๋ณ€๊ฒฝ๋˜๋”๋ผ๋„ ๋งํฌ๊ฐ€ ๊ณ„์†ํ•ด์„œ ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ํ•ด๊ฒฐ๋˜๋„๋ก ํ•ฉ๋‹ˆ๋‹ค.

๋”ฐ๋ผ์„œ ์˜ค๋Š˜ ๋ฐฐ์†ก๋˜๋Š” Toolbox์™€ ํ•จ๊ป˜ ์ž‘๋™ํ•˜๋Š” ๋น ๋ฅธ ์†”๋ฃจ์…˜์ด ํ•„์š”ํ•œ ๊ฒฝ์šฐ ์‹œ์Šคํ…œ์—์„œ ์ƒ๋Œ€ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ๋กœ ์ „ํ™˜ํ•˜๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค.

์ž‘๋™ํ•˜์ง€ ์•Š๊ณ  ์ˆ˜์ •ํ•ด์•ผ ํ•˜๋Š” ๊ฒƒ์€ ์ ˆ๋Œ€ ์‹ฌ๋ณผ๋ฆญ ๋งํฌ์ž…๋‹ˆ๋‹ค. ์ฆ‰, /etc/resolv.conf ์— ์—ฐ๊ฒฐ๋˜๋Š” /run/systemd/resolve/stub-resolv.conf .

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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