{"id":768,"date":"2025-07-09T23:50:52","date_gmt":"2025-07-09T14:50:52","guid":{"rendered":"https:\/\/www.decteng.com\/?p=768"},"modified":"2025-08-19T12:57:15","modified_gmt":"2025-08-19T03:57:15","slug":"debian-linux-ntp-time-synchronization-setup","status":"publish","type":"post","link":"https:\/\/www.decteng.com\/ko\/debian-linux-ntp-time-synchronization-setup\/","title":{"rendered":"\ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc124\uce58 \ud6c4 \ud544\uc218 \uc124\uc815 4 \u2013 NTP \uc2dc\uac04 \ub3d9\uae30\ud654"},"content":{"rendered":"\n

\uc708\ub3c4\uc6b0\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c, \ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc5ed\uc2dc \uc124\uce58\ud55c \ud6c4 \ud544\uc218\uc801\uc73c\ub85c \ud574\uc57c \ud558\ub294 \uc124\uc815\ub4e4\uc774 \uba87 \uac00\uc9c0 \uc788\ub2e4. \uadf8 \uc911, (\ud544\uc790 \uc0dd\uac01\uc73c\ub85c\ub294) \ub9c8\uc9c0\ub9c9\uc778, NTP \uc124\uc815\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc790.<\/p><\/section>

NTP(Network Time Protocol)\uc774\ub780<\/h2>

NTP<\/dfn>\ub294 \ub124\ud2b8\uc6cc\ud06c\ub97c \uc774\uc6a9\ud574 \uc2dc\uac04 \uc815\ubcf4\ub97c \uc8fc\uace0 \ubc1b\ub294 \ud504\ub85c\ud1a0\ucf5c\uc774\ub2e4. \ucef4\ud4e8\ud130\uc758 \uc2dc\uac04\uc740 \ucef4\ud4e8\ud130 \uba54\uc778\ubcf4\ub4dc\uc5d0 \ub0b4\uc7a5\ub41c \uc790\uccb4 \uc2dc\uacc4\ub97c \uc774\uc6a9\ud574 \uc720\uc9c0\ub418\uae34 \ud558\uc9c0\ub9cc, \uc2dc\uac04\uc774 \uc9c0\ub0a0\uc218\ub85d \uc2e4\uc81c \uc2dc\uac01\uacfc \uc624\ucc28\uac00 \ubc1c\uc0dd\ud558\uac8c \ub41c\ub2e4. \uc774\ub97c \ubc29\uce58\ud560 \uacbd\uc6b0 \uac04\ub2e8\ud558\uac8c\ub294 \ub85c\uadf8 \ubd84\uc11d \ub4f1\uc744 \uc9c4\ud589\ud560 \ub54c \uadc0\ucc2e\uc544 \uc9c0\ub294 \uac83\uc5d0\uc11c \uc2dc\uc791\ud574, \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \ub530\ub77c \uc11c\ubc84\uc758 \ub3d9\uc791\uc5d0\ub3c4 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\ub294 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/p>

\uc774 \ub54c\ubb38\uc5d0, NTP\ub97c \uc774\uc6a9\ud574 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \ud0c0\uc784\uc11c\ubc84\ub85c\ubd80\ud130 \uc2dc\uac04 \ub370\uc774\ud130\ub97c \ubc1b\uc544, \ub85c\uceec \uc2dc\uacc4\ub97c \uacc4\uc18d \ub3d9\uae30\ud654 \ud574 \uc8fc\ub294 \uc791\uc5c5\uc774 \uaf2d \ud544\uc694\ud558\ub2e4.<\/p><\/section>

NTP \ud074\ub77c\uc774\uc5b8\ud2b8 \uc124\uce58 \uc808\ucc28<\/h2>

\ub370\ube44\uc548 \ub9ac\ub205\uc2a4\uc758 \ub9ce\uc740 \ud328\ud0a4\uc9c0\ub4e4 \uc911\uc5d0\uc11c \uc2dc\uac04\uacfc \uad00\ub828\ub41c \uae30\ub2a5\ub4e4\uc744 \uc81c\uacf5\ud558\ub294 ntpdate<\/code>\ub77c\uace0 \ud558\ub294 \ud328\ud0a4\uc9c0\uac00 \uc788\ub2e4. \uc774 \ud328\ud0a4\uc9c0\ub97c \uc774\uc6a9\ud574 NTP\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uc815\ud574 \ubcf4\uaca0\ub2e4.<\/p>sudo apt-get install ntpdate<\/kbd>

newuser@debian:~$ sudo apt-get install ntpdate<\/kbd>\n\ud328\ud0a4\uc9c0 \ubaa9\ub85d\uc744 \uc77d\ub294 \uc911\uc785\ub2c8\ub2e4... \uc644\ub8cc\n\uc758\uc874\uc131 \ud2b8\ub9ac\ub97c \ub9cc\ub4dc\ub294 \uc911\uc785\ub2c8\ub2e4... \uc644\ub8cc\n\uc0c1\ud0dc \uc815\ubcf4\ub97c \uc77d\ub294 \uc911\uc785\ub2c8\ub2e4... \uc644\ub8cc\nThe following additional packages will be installed:\n  ntpsec-ntpdate ntpsec-ntpdig python3-ntp\n\ub2e4\uc74c \uc0c8 \ud328\ud0a4\uc9c0\ub97c \uc124\uce58\ud560 \uac83\uc785\ub2c8\ub2e4:\n  ntpdate ntpsec-ntpdate ntpsec-ntpdig python3-ntp\n0\uac1c \uc5c5\uadf8\ub808\uc774\ub4dc, 4\uac1c \uc0c8\ub85c \uc124\uce58, 0\uac1c \uc81c\uac70 \ubc0f 0\uac1c \uc5c5\uadf8\ub808\uc774\ub4dc \uc548 \ud568.\n172 k\ubc14\uc774\ud2b8 \uc544\uce74\uc774\ube0c\ub97c \ubc1b\uc544\uc57c \ud569\ub2c8\ub2e4.\n\uc774 \uc791\uc5c5 \ud6c4 599 k\ubc14\uc774\ud2b8\uc758 \ub514\uc2a4\ud06c \uacf5\uac04\uc744 \ub354 \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4.\n\uacc4\uc18d \ud558\uc2dc\uaca0\uc2b5\ub2c8\uae4c? [Y\/n] Y<\/kbd>\n\ubc1b\uae30:1 http:\/\/deb.debian.org\/debian bookworm\/main amd64 python3-ntp amd64 1.2.2+dfsg1-1+deb12u1 [88.9 kB]\n\ubc1b\uae30:2 http:\/\/deb.debian.org\/debian bookworm\/main amd64 ntpsec-ntpdig amd64 1.2.2+dfsg1-1+deb12u1 [31.9 kB]\n\ubc1b\uae30:3 http:\/\/deb.debian.org\/debian bookworm\/main amd64 ntpsec-ntpdate amd64 1.2.2+dfsg1-1+deb12u1 [29.0 kB]\n\ubc1b\uae30:4 http:\/\/deb.debian.org\/debian bookworm\/main amd64 ntpdate all 1:4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1 [22.0 kB]\n\ub0b4\ub824\ubc1b\uae30 172 k\ubc14\uc774\ud2b8, \uc18c\uc694\uc2dc\uac04 0\ucd08 (2,247 k\ubc14\uc774\ud2b8\/\ucd08)\nSelecting previously unselected package python3-ntp.\n(\ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc77d\ub294\uc911 ...\ud604\uc7ac 33821\uac1c\uc758 \ud30c\uc77c\uacfc \ub514\ub809\ud130\ub9ac\uac00 \uc124\uce58\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.)\nPreparing to unpack ...\/python3-ntp_1.2.2+dfsg1-1+deb12u1_amd64.deb ...\nUnpacking python3-ntp (1.2.2+dfsg1-1+deb12u1) ...\nSelecting previously unselected package ntpsec-ntpdig.\nPreparing to unpack ...\/ntpsec-ntpdig_1.2.2+dfsg1-1+deb12u1_amd64.deb ...\nUnpacking ntpsec-ntpdig (1.2.2+dfsg1-1+deb12u1) ...\nSelecting previously unselected package ntpsec-ntpdate.\nPreparing to unpack ...\/ntpsec-ntpdate_1.2.2+dfsg1-1+deb12u1_amd64.deb ...\nUnpacking ntpsec-ntpdate (1.2.2+dfsg1-1+deb12u1) ...\nSelecting previously unselected package ntpdate.\nPreparing to unpack ...\/ntpdate_1%3a4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1_all.deb ...\nUnpacking ntpdate (1:4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1) ...\npython3-ntp (1.2.2+dfsg1-1+deb12u1) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nntpsec-ntpdig (1.2.2+dfsg1-1+deb12u1) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nntpsec-ntpdate (1.2.2+dfsg1-1+deb12u1) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nntpdate (1:4.2.8p15+dfsg-2~1.2.2+dfsg1-1+deb12u1) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nProcessing triggers for man-db (2.11.2-2) ...<\/samp><\/pre><\/section>
NTP \uc124\uc815<\/h2>
\uc815\uc0c1\uc801\uc73c\ub85c \uc124\uce58\uac00 \ub410\uc73c\uba74 timedatectl<\/code>\uc744 \uc785\ub825\ud574\uc11c \uc0c1\ud0dc\ub97c \ud655\uc778\ud574 \ubcf8\ub2e4.<\/p>
newuser@debian:~$ timedatectl<\/kbd>\n                       Local time: \uc218 2024-11-06 00:03:33 KST\n                   Universal time: \ud654 2024-11-05 15:03:33 UTC\n                         RTC time: \uc218 2024-11-06 00:03:33\n                        Time zone: Asia\/Seoul (KST, +0900)\n       System clock synchronized: yes\n                     NTP service: inactive\n                 RTC in local TZ: yes\n\nWarning: The system is configured to read the RTC time in the local time zone.\n         This mode cannot be fully supported. It will create various problems\n         with time zone changes and daylight saving time adjustments. The RTC\n         time is never updated, it relies on external facilities to maintain it.\n         If at all possible, use RTC in UTC by calling\n         'timedatectl set-local-rtc 0'.<\/samp><\/pre>
\uc815\uc0c1\uc801\uc73c\ub85c \uc124\uce58\uac00 \ub418\uae34 \ud588\uc73c\ub098 \uc544\uc9c1 \uba87\uac00\uc9c0 \uc124\uc815\uc744 \ub354 \ud574\uc8fc\uc5b4\uc57c \ud55c\ub2e4. \uba3c\uc800, \uc544\ub798\uc5d0 \ub098\ud0c0\ub09c \uacbd\uace0 \uba54\uc2dc\uc9c0 \ubd80\ud130 \uc5c6\uc560\ubcf4\ub3c4\ub85d \ud558\uaca0\ub2e4. (\uacbd\uace0 \uba54\uc2dc\uc9c0\uac00 \ub098\ud0c0\ub098\uc9c0 \uc54a\uc558\ub2e4\uba74 \ub118\uc5b4\uac00\ub3c4 \ubb34\ubc29\ud558\ub2e4.)<\/p>
RTC \uae30\uc900 \uc2dc\uac04 \uc124\uc815<\/h3>sudo timedatectl set-local-rtc 0<\/kbd>
\uc774 \uba85\ub839\uc740 \uc2dc\uc2a4\ud15c\uc758 \ud558\ub4dc\uc6e8\uc5b4 \uc2dc\uacc4\uc758 \uae30\uc900\uc744 UTC\ub85c \ubcc0\uacbd\ud574 \uc8fc\ub294 \uba85\ub839\uc774\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub9ac\ub205\uc2a4 \uc2dc\uc2a4\ud15c\uc740 \uc124\uc815\ub41c \ud45c\uc900 \uc2dc\uac04\ub300\ub97c \ud558\ub4dc\uc6e8\uc5b4 \uc2dc\uacc4\ub97c \uae30\uc900\uc73c\ub85c \uc0ac\uc6a9\ud558\uac8c \ub41c\ub2e4. timedatectl<\/code>\uc744 \uc785\ub825\ud574\uc11c, \uacbd\uace0 \uba54\uc2dc\uc9c0\uac00 \uc0ac\ub77c\uc84c\ub294\uc9c0 \ud655\uc778\ud574 \ubcf4\uc790.<\/p>
newuser@debian:~$ sudo timedatectl set-local-rtc 0<\/kbd>\nnewuser@debian:~$ timedatectl<\/kbd>\n                       Local time: \uc218 2024-11-06 11:11:22 KST\n                   Universal time: \uc218 2024-11-06 02:11:22 UTC\n                         RTC time: \uc218 2024-11-06 02:11:22\n                        Time zone: Asia\/Seoul (KST, +0900)\n       System clock synchronized: yes\n                     NTP service: inactive\n                 RTC in local TZ: no<\/samp><\/pre>
\uacbd\uace0 \uba54\uc2dc\uc9c0\uac00 \uc0ac\ub77c\uc9c4 \uac83\uc774 \ubcf4\uc778\ub2e4. \uc774\uc81c \ub098\uba38\uc9c0 NTP \uc124\uc815\uc744 \uc9c4\ud589 \ud558\ub3c4\ub85d \ud55c\ub2e4.<\/p>
\uc0ac\uc6a9\uc790\uc758 \ud45c\uc900 \uc2dc\uac04\ub300 \uc124\uc815<\/h3>
\uc704\uc758 \uc608\uc5d0\uc11c\ub294 Time zone<\/code>\uc774 Asia\/Seoul (KST, +0900)<\/code>\ub85c \ud45c\uc2dc\ub418\uace0 \uc788\ub2e4. \ub9cc\uc57d \ub2e4\ub978 \uc2dc\uac04\ub300\ub97c \uc0ac\uc6a9\ud558\uace0 \uc2f6\ub2e4\uac70\ub098, \uc6d0\ud558\ub294 \uc2dc\uac04\ub300\uac00 \uc544\ub2d0 \uacbd\uc6b0 \uc2dc\uac04\ub300\ub97c \ubcc0\uacbd \ud574 \uc8fc\uc5b4\uc57c \ud55c\ub2e4. \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc2dc\uac04\ub300 \ubaa9\ub85d\uc744 \ud655\uc778\ud558\uae30 \uc704\ud574 \ub2e4\uc74c\uacfc \uac19\uc774 \uc785\ub825\ud574 \ubcf4\uc790.<\/p>timedatectl list-timezones<\/kbd>
\uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc2dc\uac04\ub300\uc758 \ubaa9\ub85d\uc774 \uc88c\ub77c\ub77d \ud3bc\uccd0\uc9c4\ub2e4. (\uc774 \ubb38\uc11c\uc5d0\uc11c\ub294 \ubaa9\ub85d\uc774 \ub108\ubb34 \uae38\uc5b4 \ud45c\uc2dc\ud558\uc9c0 \uc54a\ub294\ub2e4.) \uc774 \uc911 \uc6d0\ud558\ub294 \uc2dc\uac04\ub300\ub97c \ucc3e\uc544 \uc544\ub798\uc758 \uba85\ub839\uacfc \uac19\uc774 \uc801\uc6a9\uc2dc\ucf1c \uc8fc\uba74 \ub41c\ub2e4.<\/p>sudo timedatectl set-timezone Asia\/Seoul<\/kbd>
\uc774\ub807\uac8c \ud558\uba74 \uc0ac\uc6a9\uc790 \uc2dc\uac04\ub300\uac00 \ub300\ud55c\ubbfc\uad6d \ud45c\uc900\uc2dc\ub85c \ubcc0\uacbd \ub41c\ub2e4. \ub2e4\ub978 \uc2dc\uac04\ub300\ub97c \uc6d0\ud560 \uacbd\uc6b0, list-timezones\uc744 \ud1b5\ud574 \ud655\uc778\ud55c \uc2dc\uac04\ub300 \uc774\ub984\uc744 Asia\/Seoul<\/code> \uc790\ub9ac\uc5d0 \ub300\uc2e0 \ub123\uc5b4\uc8fc\uba74 \ub41c\ub2e4.<\/p>
NTP \ub3d9\uae30\ud654 \uc124\uc815 \ubc0f NTP \uc11c\ubc84 \ucd94\uac00<\/h3>
\uc2dc\uac04 \ub3d9\uae30\ud654\uc5d0 \uc0ac\uc6a9\ud560 NTP \uc11c\ubc84\uc8fc\uc18c\uc640 \uae30\ud0c0 \uc124\uc815 \uc815\ubcf4\ub294 \uc544\ub798\uc758 \ud30c\uc77c\uc5d0 \uc800\uc7a5 \ub418\uc5b4 \uc788\ub2e4.<\/p>\/etc\/systemd\/timesyncd.conf<\/code>
\uc774 \ud30c\uc77c\uc758 \ub0b4\uc6a9\uc744 \uc5d0\ub514\ud130\ub97c \uc774\uc6a9\ud574 \uc218\uc815\ud574 \uc8fc\uba74 \ub41c\ub2e4. \ud544\uc790\ub294 nano\ub97c \uc774\uc6a9\ud574 \ud30c\uc77c\uc744 \uc218\uc815\ud574 \ubcf4\uaca0\ub2e4.<\/p>sudo nano \/etc\/systemd\/timesyncd.conf<\/kbd>
# \uc5b4\uca4c\uace0.....\n# \uc800\uca4c\uace0.....\n# \uc8fc\uc800\ub9ac.....\n# .....\n[Time]\n#NTP=\n#FallbackNTP=0.debian.pool.ntp.org 1.debian.pool.ntp.org 2.debian.pool.ntp.org 3.debian.pool.ntp.org\n#RootDistanceMaxSec=5\n#PollIntervalMinSec=32\n#PollIntervalMaxSec=2048\n#ConnectionRetrySec=30\n#SaveIntervalSec=60<\/code><\/pre>
\ud30c\uc77c\uc758 \ub05d\ubd80\ubd84 \uc815\ub3c4\uc5d0 \uc704\uce58\ud55c [Time]<\/code>\ubd80\ubd84\uc5d0 \uc124\uc815\uc744 \uc801\uc5b4 \uc8fc\uba74\ub41c\ub2e4. \ucc38\uace0\ub85c #<\/code>\uc73c\ub85c \uc2dc\uc791\ud558\ub294 \uc904\uc740 \uc8fc\uc11d\ucc98\ub9ac \ub418\uc5b4 \ubb34\uc2dc\ub418\ub294 \uc904 \uc774\ub2e4. \uac01\uac01\uc758 \ud56d\ubaa9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>
NTP<\/dt>
\uc8fc\ub85c \uc0ac\uc6a9\ud560 NTP \uc11c\ubc84\uc758 \uc8fc\uc18c\ub97c \uc801\uc5b4\uc900\ub2e4.<\/dd>
FallbackNTP<\/dt>
\uc8fc\ub85c \uc0ac\uc6a9\ud560 NTP \uc11c\ubc84\uc640 \ud1b5\uc2e0\uc5d0 \ubb38\uc81c\uac00 \uc0dd\uacbc\uc744 \uacbd\uc6b0 \uc0ac\uc6a9\ud560 \uc608\ube44 NTP \uc11c\ubc84\uc758 \uc8fc\uc18c\ub4e4\uc744 \uc801\uc5b4\uc900\ub2e4.<\/dd>
RootDistanceMaxSec<\/dt>
NTP \uc11c\ubc84\uc5d0\uc11c \uc2dc\uac04\uc815\ubcf4\ub97c \uc218\uc2e0\ud558\ub294\ub370 \uac78\ub9ac\ub294 \uc2dc\uac04 \uc81c\ud55c \uac12. 5<\/var>\uc758 \uc758\ubbf8\ub294, \uc2dc\uac04 \uc815\ubcf4\ub97c \ubc1b\uc544\uc624\ub294\ub370 5\ucd08 \uc774\uc0c1\uc774 \uac78\ub9b0\ub2e4\uba74, \ud574\ub2f9 NTP \uc11c\ubc84\ub97c \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uaca0\ub2e4\ub294 \uc758\ubbf8\uc774\ub2e4.<\/dd>
PollIntervalMinSec<\/dt>
NTP \uc11c\ubc84\uc5d0 \uc2dc\uac04\uc744 \uc694\uccad\ud558\ub294 \ucd5c\uc18c \uc2dc\uac04 \uac04\uaca9<\/dd>
PollIntervalMaxSec<\/dt>
NTP \uc11c\ubc84\uc5d0 \uc2dc\uac04\uc744 \uc694\uccad\ud558\ub294 \ucd5c\ub300 \uc2dc\uac04 \uac04\uaca9<\/dd>
ConnectionRetrySec<\/dt>
NTP \uc11c\ubc84\uc5d0 \uc5f0\uacb0\uc774 \uc2e4\ud328\ud588\uc744 \uacbd\uc6b0 \uc7ac \uc2dc\ub3c4\ud558\ub294 \uac04\uaca9<\/dd>
SaveIntervalSec<\/dt>
\ud604\uc7ac \uc2dc\uac04 \uc0c1\ud0dc\ub97c \ub514\uc2a4\ud06c\uc5d0 \uc800\uc7a5\ud558\ub294 \uc8fc\uae30<\/dd><\/dl>
[Time]<\/code>\ud56d\ubaa9 \ub0b4\ubd80\uc758 \ubaa8\ub4e0 #<\/code>\uc744 \uc0ad\uc81c\ud574 \uc900\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c Ctrl+X\ub97c \ub20c\ub7ec \ud30c\uc77c\uc744 \uc800\uc7a5\ud574 \uc8fc\uba74 \ub418\uaca0\ub2e4.<\/p>
# \uc218\uc815\ub41c timesyncd.conf\uc758 \uc608\n# \uc5b4\uca4c\uace0.....\n# \uc800\uca4c\uace0.....\n# \uc8fc\uc800\ub9ac.....\n# .....\n[Time]\nNTP=192.168.256.257\nFallbackNTP=0.debian.pool.ntp.org 1.debian.pool.ntp.org 2.debian.pool.ntp.org 3.debian.pool.ntp.org\nRootDistanceMaxSec=5\nPollIntervalMinSec=32\nPollIntervalMaxSec=2048\nConnectionRetrySec=30\nSaveIntervalSec=60<\/code><\/pre>
NTP \uc11c\ube44\uc2a4 \ud65c\uc131\ud654<\/h3>sudo timedatectl set-ntp true<\/kbd>
\uc11c\ube44\uc2a4 \uc7ac\uc2dc\uc791<\/h3>sudo systemctl restart systemd-timesyncd.service<\/kbd>
\ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc11c\ube44\uc2a4\ub97c \uc7ac\uc2dc\uc791\ud574 \uc8fc\uba74 \ub41c\ub2e4. \uc791\uc5c5\uc774 \uc644\ub8cc \ub41c \ud6c4, timedatectl<\/code>\uc744 \uc785\ub825\ud574\uc11c \uc0c1\ud0dc\ub97c \ud655\uc778\ud574 \ubcf8\ub2e4.<\/p>
newuser@debian:~$ timedatectl<\/kbd>\n                       Local time: \uc218 2024-11-06 00:03:33 KST\n                   Universal time: \ud654 2024-11-05 15:03:33 UTC\n                         RTC time: \uc218 2024-11-06 00:03:33\n                        Time zone: Asia\/Seoul (KST, +0900)\n       System clock synchronized: yes\n                     NTP service: active\n                 RTC in local TZ: no<\/samp><\/pre>
\uc704\uc640 \uac19\uc774 \ud45c\uc2dc \ub41c\ub2e4\uba74, NTP \uc11c\ube44\uc2a4 \uc124\uc815\uc774 \uc815\uc0c1\uc801\uc73c\ub85c \uc774\ub8e8\uc5b4\uc9c4 \uac83\uc774\ub2e4.<\/p>
NTP \ub3d9\uc791 \ud655\uc778<\/h3>
\ub9c8\uc9c0\ub9c9\uc73c\ub85c, NTP\uac00 \uc2e4\uc81c\ub85c \uc798 \ub3d9\uc791\ud558\uace0 \uc788\ub294\uc9c0\ub97c \ud655\uc778\ud574 \ubcf4\uae30\ub85c \ud55c\ub2e4.<\/p>sudo systemctl status systemd-timesyncd.service<\/kbd>
timesyncd \uc11c\ube44\uc2a4\uc758 \ub3d9\uc791\uc0c1\ud0dc\uac00 \ud45c\uc2dc\ub418\uba70, \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc2dc\uac04\uc744 \uac00\uc838\uc628 \uc2dc\uac01\uacfc \uac00\uc838\uc628 \uc11c\ubc84 \uc815\ubcf4\ub4e4\uc774 \ud45c\uc2dc\ub41c\ub2e4. \ud574\ub2f9 \ub0b4\uc6a9\uc774 \uc788\ub2e4\uba74, NTP\uac00 \uc815\uc0c1\uc801\uc73c\ub85c \ub3d9\uc791\ud558\uba70 \uc2dc\uac04\uc744 \ub3d9\uae30\ud654 \ud558\uace0 \uc788\ub2e4\ub294 \ub73b\uc774\ub2e4.<\/p>
newuser@debian:~$ sudo systemctl status systemd-timesyncd.service<\/kbd>\n\u25cf systemd-timesyncd.service - Network Time Synchronization\n     Loaded: loaded (\/lib\/systemd\/system\/systemd-timesyncd.service; enabled; preset: enabled)\n     Active: active (running) since Wed 2024-11-06 12:29:07 KST; 7min ago\n       Docs: man:systemd-timesyncd.service(8)\n   Main PID: 1650 (systemd-timesyn)\n     Status: \"Contacted time server 121.174.142.82:123 (0.debian.pool.ntp.org).\"\n      Tasks: 2 (limit: 19041)\n     Memory: 1.4M\n        CPU: 33ms\n     CGroup: \/system.slice\/systemd-timesyncd.service\n             \u2514\u25001650 \/lib\/systemd\/systemd-timesyncd<\/samp><\/pre><\/section>
\uc694\uc57d \ubc0f FAQ<\/h2>
NTP\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\ub294 \uc774\uc720\ub294?<\/dt>
\ucef4\ud4e8\ud130 \uba54\uc778\ubcf4\ub4dc\uc5d0 \ub0b4\uc7a5\ub41c \uc2dc\uacc4\uc758 \uc815\ud655\ub3c4\ub294 \ubc30\ud130\ub9ac\uc640 \uc628\ub3c4\ub4f1\uc758 \uc601\ud5a5\uc744 \ubc1b\ub294\ub2e4. \ub54c\ubb38\uc5d0 \uc2e4\uc81c \uc2dc\uac04\uacfc\uc758 \uc624\ucc28\uac00 \uacc4\uc18d\ud574\uc11c \ubc1c\uc0dd\ud558\uac8c \ub41c\ub2e4. \uc774\ub97c \ubc29\uce58\ud560 \uacbd\uc6b0 \uc5ec\ub7ec\uac00\uc9c0 \ubb38\uc81c\uc810\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/dd>
\ud558\ub4dc\uc6e8\uc5b4 \uc2dc\uacc4\ub97c UTC\ub85c \ub9de\ucdb0\uc57c \ud558\ub294 \uc774\uc720\ub294?<\/dt>
OS\uc5d0\uc11c \uc124\uc815\ub41c \uc2dc\uac04\ub300\ub294 \uac00\ubcc0\uc801\uc774\ub2e4. \ub54c\ubb38\uc5d0 \ud558\ub4dc\uc6e8\uc5b4 \uc2dc\uac04\uc744 UTC\uc5d0 \ub9de\ucd94\uace0 OS\uc5d0\uc11c \uc0ac\uc6a9\uc790 \uc2dc\uac04\ub300\ub85c \ubcc0\ud658\ud574\uc11c \ud45c\uc2dc\ud558\ub294 \ubc29\uc2dd\uc774 \ud63c\ub3d9\uc744 \ubc29\uc9c0\ud560 \uc218 \uc788\ub2e4.<\/dd>
\uc2dc\uac04 \uac31\uc2e0 \uac04\uaca9\uc740 \uc9e7\uc744 \uc218\ub85d \uc88b\uc740\uac00?<\/dt>
\ud544\uc790\ub294 \uc57d 1\uc2dc\uac04 \uc815\ub3c4\ub97c \uad8c\uc7a5\ud55c\ub2e4. \ub108\ubb34 \uc9e7\uc73c\uba74 \ub124\ud2b8\uc6cc\ud06c\uc640 \uc2dc\uc2a4\ud15c\uc758 \ubd80\ud558\uac00 \uc0c1\uc2b9\ud55c\ub2e4.<\/dd>
\ud558\ub4dc\uc6e8\uc5b4 \uc2dc\uacc4\uc758 \uc815\ud655\ub3c4\uac00 \ub108\ubb34 \ub098\uc060\uacbd\uc6b0 \uc870\uce58 \ubc29\ubc95\uc740?<\/dt>
\ud558\ub4dc\uc6e8\uc5b4 \uc2dc\uacc4\uc5d0 \ud074\ub7ed\uc744 \uacf5\uae09\ud558\ub294 \uc218\uc815\ubc1c\uc9c4\uc790\ub294 \uc628\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ub9ce\uc774 \ubc1b\ub294\ub2e4. \uc2dc\uc2a4\ud15c\uc758 \uc628\ub3c4\ub97c \uc77c\uc815\ud558\uac8c \uc720\uc9c0\uc2dc\ucf1c \uc8fc\uc5b4\uc57c \ud55c\ub2e4. \ub610\ud55c, \uba54\uc778\ubcf4\ub4dc\uc758 \ubc31\uc5c5 \ubc30\ud130\ub9ac\uc758 \uc804\uc555\uc774 \ub0ae\uc744 \uacbd\uc6b0\uc5d0\ub3c4 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud55c\ub2e4. \ubc30\ud130\ub9ac\ub97c \uad50\uccb4\ud574 \ubcf8\ub2e4.<\/dd>
\ud574\uc678\uc758 NTP \uc11c\ubc84\ub294 \ubd80\uc815\ud655\ud55c\uac00?<\/dt>
\ud574\uc678\uc5d0 \uc704\uce58\ud55c \uc11c\ubc84\uc640 \ud1b5\uc2e0\uc744 \uc704\ud574\uc11c\ub294 \uad6d\ub0b4 \uc11c\ubc84\uc5d0 \ube44\ud574 \uc2dc\uac04\uc774 \ub354 \uac78\ub9b0\ub2e4. \ud558\uc9c0\ub9cc NTP\ub294 \uc2dc\uac04 \ubcf4\uc815\uc744 \uc704\ud55c \ud504\ub85c\ud1a0\ucf5c\ub85c, \uc804\uc1a1\uc9c0\uc5f0\uc5d0 \ub300\ud574\uc11c\ub3c4 \ub300\uc751\ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\ub2e4. \ub54c\ubb38\uc5d0 \ud574\uc678\uc758 NTP \uc11c\ubc84\ub97c \uc0ac\uc6a9\ud574\ub3c4 \ubb38\uc81c\ub294 \uc5c6\ub2e4. \ud558\uc9c0\ub9cc \uc2dc\uac04\uc774\ub77c\ub294 \ud2b9\uc131 \uc0c1 \uc870\uae08\uc774\ub77c\ub3c4 \ube60\ub978 \uc751\ub2f5\uc744 \uc6d0\ud55c\ub2e4\uba74 \uad6d\ub0b4\uc758 \uc11c\ubc84\ub97c \uc0ac\uc6a9\ud560 \uac83\uc744 \uad8c\ud55c\ub2e4.<\/dd>
NTP\ubcf4\ub2e4 \ub354 \uc815\ubc00\ud55c \uc2dc\uac04 \ubcf4\uc815\uc774 \ud544\uc694\ud560 \uacbd\uc6b0 \ubc29\ubc95\uc740<\/dt>
NTP\uc758 \uc815\ud655\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ucf1c \uc880 \ub354 \uc815\ubc00\ud55c \uc2dc\uac04 \uc815\ubcf4\ub97c \ubc1b\uc544\uc624\uae30 \uc704\ud55c PTP(Precision Time Protocol) \ud504\ub85c\ud1a0\ucf5c\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \ub9c8\uc774\ud06c\ub85c\ucd08 \uc774\ud558\uc758 \uc815\ud655\ub3c4\ub97c \uac00\uc9c0\uba70, \ubc29\uc1a1\uc7a5\ube44\ub4e4\uc758 \uc2f1\ud06c\ub97c \ub9de\ucd94\ub294 \ub370\uc5d0\ub3c4 \uc0ac\uc6a9\ud55c\ub2e4.<\/dd><\/dl><\/section>\n","protected":false},"excerpt":{"rendered":"
\ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc11c\ubc84 \uc124\uce58 \ud6c4 \ubc18\ub4dc\uc2dc \uc9c4\ud589\ud574\uc57c \ud558\ub294 \ud544\uc218 \uc124\uc815 \ub124\ubc88\uc9f8. NTP\ub97c \uc774\uc6a9\ud55c \ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ub3d9\uae30\ud654 \uc124\uc815 \ubc29\ubc95\uc744 \ud1b5\ud574, \ud45c\uc900 \uc2dc\uac04\ub300, \ud558\ub4dc\uc6e8\uc5b4 RTC \uc2dc\uac04 \uc124\uc815 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uace0, \uc2dc\uc2a4\ud15c \uc2dc\uac04\uc744 \uc81c\uc5b4\ud558\ub294 timedatectl \uc0ac\uc6a9 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc124\uba85\ud55c\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":1001,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[138,140,133,7,139,13,141],"class_list":{"0":"post-768","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-linux","8":"tag-ntp","9":"tag-rtc","10":"tag-debianlinux","11":"tag-linux","12":"tag-time-sync","13":"tag-procedure","14":"tag-standard-time","15":"content-layout-excerpt-thumb"},"_links":{"self":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts\/768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/comments?post=768"}],"version-history":[{"count":2,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts\/768\/revisions"}],"predecessor-version":[{"id":1544,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts\/768\/revisions\/1544"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/media\/1001"}],"wp:attachment":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/media?parent=768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/categories?post=768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/tags?post=768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}