{"id":478195,"date":"2023-08-09T09:28:42","date_gmt":"2023-08-09T09:28:42","guid":{"rendered":""},"modified":"2023-09-05T11:16:13","modified_gmt":"2023-09-05T11:16:13","slug":"network-time-protocol","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/kr\/wiki\/network-time-protocol\/","title":{"rendered":"\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c"},"content":{"rendered":"<p>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c\uc5d0 \ub300\ud55c \uac04\ub7b5\ud55c \uc815\ubcf4<\/p>\n<p>NTP(Network Time Protocol)\ub294 \ub124\ud2b8\uc6cc\ud06c \ub0b4\uc758 \ucef4\ud4e8\ud130\uc640 \uc7a5\uce58\uc758 \uc2dc\uacc4\ub97c \uacf5\ud1b5 \uc2dc\uac04 \uc18c\uc2a4\uc640 \ub3d9\uae30\ud654\ud558\ub294 \uc911\uc694\ud55c \uc2dc\uc2a4\ud15c\uc785\ub2c8\ub2e4. \uc774\ub294 \uc815\ud655\ud55c \uc2dc\uac04 \uc720\uc9c0\uc5d0 \uc758\uc874\ud558\uace0 \uc870\uc815\uc744 \uc81c\uacf5\ud558\uba70 \ub2e4\uc591\ud55c \ud50c\ub7ab\ud3fc\uc5d0\uc11c \uc6b4\uc601\uc758 \uc77c\uad00\uc131\uc744 \ubcf4\uc7a5\ud558\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ubc0f \uc2dc\uc2a4\ud15c\uc5d0 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n<h2>\ub124\ud2b8\uc6cc\ud06c \ud0c0\uc784 \ud504\ub85c\ud1a0\ucf5c(Network Time Protocol)\uc758 \uc720\ub798\uc640 \ucd5c\ucd08 \uc5b8\uae09\uc758 \uc5ed\uc0ac<\/h2>\n<p>NTP\uc758 \uae30\uc6d0\uc740 David L. Mills\uac00 RFC 778\uc5d0\uc11c \ucc98\uc74c \uc124\uba85\ud55c 1981\ub144\uc73c\ub85c \uac70\uc2ac\ub7ec \uc62c\ub77c\uac11\ub2c8\ub2e4. \ub124\ud2b8\uc6cc\ud06c \uc804\uccb4\uc5d0\uc11c \uc2dc\uac04 \ub3d9\uae30\ud654\uc5d0 \ub300\ud55c \ud544\uc694\uc131\uc774 \uc810\uc810 \ub354 \ubd84\uba85\ud574\uc84c\uace0 Mills\uc758 \uac1c\ub150\uc740 \ud504\ub85c\ud1a0\ucf5c \uac1c\ubc1c\uc758 \ud1a0\ub300\ub97c \ub9c8\ub828\ud588\uc2b5\ub2c8\ub2e4. NTP\ub294 1985\ub144 RFC 958\uc5d0\uc11c \uacf5\uc2dd\uc801\uc73c\ub85c \uc815\uc758\ub418\uc5c8\uc73c\uba70 \uadf8 \uc774\ud6c4\ub85c \uc218\ub9ce\uc740 \uac1c\uc815\uacfc \uac1c\uc120\uc744 \uac70\ucce4\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \uc815\ubcf4: \uc8fc\uc81c \ud655\uc7a5<\/h2>\n<p>NTP\ub294 \uacc4\uce35 \uc218\uc900\uc73c\ub85c \ubd84\ub958\ub41c \uacc4\uce35\uc801 \ubc18\uacc4\uce35 \uc2dc\uac04 \uc18c\uc2a4 \uc2dc\uc2a4\ud15c\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. Stratum 0\uc740 \uc6d0\uc790 \uc2dc\uacc4\uc640 \uac19\uc740 \uace0\uc815\ubc00 \uc2dc\uac04 \uc18c\uc2a4\ub85c \uad6c\uc131\ub418\uba70, \ub0ae\uc740 Stratum \uc218\uc900\uc5d0\uc11c\ub294 \uc810\uc810 \uc815\ud655\ub3c4\uac00 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uc9c0\uce35 0:<\/strong> \uc6d0\uc790\uc2dc\uacc4, GPS \uc2dc\uacc4<\/li>\n<li><strong>\uc9c0\uce35 1:<\/strong> Stratum 0 \uc7a5\uce58\uc5d0 \uc9c1\uc811 \uc5f0\uacb0\ub41c \ucef4\ud4e8\ud130<\/li>\n<li><strong>\uc9c0\uce35 2:<\/strong> Stratum 1 \uc11c\ubc84\uc5d0 \uc5f0\uacb0\ub41c \uc7a5\uce58<\/li>\n<li><strong>Stratum 3 \uc774\uc0c1:<\/strong> \uc5f0\uc18d\uc801\uc778 \uc11c\ubc84 \ubc0f \ud074\ub77c\uc774\uc5b8\ud2b8 \uacc4\uce35<\/li>\n<\/ul>\n<p>NTP\ub294 \ud3ec\ud2b8 123\uc744 \ud1b5\ud574 UDP(\uc0ac\uc6a9\uc790 \ub370\uc774\ud130\uadf8\ub7a8 \ud504\ub85c\ud1a0\ucf5c)\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud1b5\uc2e0\ud558\uace0 \uac11\uc791\uc2a4\ub7ec\uc6b4 \uc804\ud658\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc810\uc9c4\uc801\uc73c\ub85c \uc2dc\uac04\uc744 \uc870\uc815\ud558\uc5ec \uc6d0\ud65c\ud55c \uc804\ud658\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c\uc758 \ub0b4\ubd80 \uad6c\uc870: \uc791\ub3d9 \ubc29\uc2dd<\/h2>\n<p>NTP\ub294 \uba54\uc2dc\uc9c0\uac00 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc11c \uc11c\ubc84\ub85c \uc774\ub3d9\ud558\uace0 \ub2e4\uc2dc \ub3cc\uc544\uc624\ub294 \ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\uc744 \uce21\uc815\ud558\uc5ec \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc11c\ubc84 \uc2dc\uac04\uacfc \ud074\ub77c\uc774\uc5b8\ud2b8 \uc2dc\uac04\uc758 \ucc28\uc774\ub97c \uacc4\uc0b0\ud558\uace0 \ud544\uc694\ud55c \uc870\uc815\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n<ol>\n<li><strong>\uc694\uad6c:<\/strong> \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \ud0c0\uc784\uc2a4\ud0ec\ud504\uac00 \ud3ec\ud568\ub41c \uc694\uccad\uc744 \uc11c\ubc84\uc5d0 \ubcf4\ub0c5\ub2c8\ub2e4.<\/li>\n<li><strong>\uc218\uc2e0 \ubc0f \uc804\uc1a1:<\/strong> \uc11c\ubc84\ub294 \uc694\uccad\uc774 \uc218\uc2e0\ub41c \uc2dc\uc810\uacfc \uc751\ub2f5\uc774 \uc804\uc1a1\ub41c \uc2dc\uc810\uc5d0 \ub300\ud55c \ud0c0\uc784\uc2a4\ud0ec\ud504\ub97c \ucd94\uac00\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uacc4\uc0b0 \ubc0f \uc870\uc815:<\/strong> \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \uc655\ubcf5 \uc9c0\uc5f0\uacfc \uc624\ud504\uc14b\uc744 \uacc4\uc0b0\ud558\uace0 \uc774\uc5d0 \ub530\ub77c \uc2dc\uacc4\ub97c \uc870\uc815\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c\uc758 \uc8fc\uc694 \uae30\ub2a5 \ubd84\uc11d<\/h2>\n<ul>\n<li><strong>\uc815\ud655\uc131:<\/strong> NTP\ub294 \uacf5\uc6a9 \uc778\ud130\ub137\uc744 \ud1b5\ud574 10\ubc00\ub9ac\ucd08 \uc774\ub0b4\uc758 \uc815\ud655\ub3c4\ub97c \ub2ec\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uc720\uc5f0\uc131:<\/strong> \ub2e4\uc591\ud55c \ub124\ud2b8\uc6cc\ud06c \ud1a0\ud3f4\ub85c\uc9c0\uc5d0\uc11c \uc791\ub3d9\ud560 \uc218 \uc788\uc73c\uba70 \ub2e4\uc591\ud55c \uc2dc\uac04 \uc18c\uc2a4\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ubcf4\uc548:<\/strong> \uc545\uc758\uc801\uc778 \uc2dc\uac04 \ubcc0\uacbd\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc778\uc99d\uacfc \uac19\uc740 \ubcf4\uc548 \uc870\uce58\uac00 \uad6c\ud604\ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c\uc758 \uc720\ud615<\/h2>\n<p>\ub2e4\uc74c\uc740 NTP\uc758 \ub450 \uac00\uc9c0 \uc8fc\uc694 \ubc84\uc804\uc744 \uac15\uc870\ud558\ub294 \ud45c\uc785\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\ubc84\uc804<\/th>\n<th>\uc124\uba85<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NTP<\/td>\n<td>\ubaa8\ub4e0 \uc2dc\ub098\ub9ac\uc624\uc5d0 \uc801\ud569\ud55c \uc804\uccb4 \uad6c\ud604\uc785\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>SNTP(\ub2e8\uc21c NTP)<\/td>\n<td>\ub35c \uc911\uc694\ud55c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc801\ud569\ud55c \ub2e8\uc21c\ud654\ub41c \ubc84\uc804\uc785\ub2c8\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c \uc0ac\uc6a9 \ubc29\ubc95, \ubb38\uc81c \ubc0f \ud574\uacb0 \ubc29\ubc95<\/h2>\n<ul>\n<li><strong>\uc6a9\ub3c4:<\/strong> \uc2dc\uc2a4\ud15c \uc2dc\uacc4 \ub3d9\uae30\ud654, \ubd84\uc0b0 \uc2dc\uc2a4\ud15c \uc870\uc815, \ub85c\uae45 \ubc0f \ucd94\uc801.<\/li>\n<li><strong>\ubb38\uc81c:<\/strong> \ub124\ud2b8\uc6cc\ud06c \uc9c0\uc5f0, \uc545\uc758\uc801\uc778 \uacf5\uaca9, \ud558\ub4dc\uc6e8\uc5b4 \ube44\ud638\ud658\uc131.<\/li>\n<li><strong>\uc194\ub8e8\uc158:<\/strong> \uc778\uc99d\ub41c NTP \uc11c\ubc84 \uc0ac\uc6a9, \uc801\uc808\ud55c \ubc29\ud654\ubcbd \uad6c\uc131, \uc801\uc808\ud55c \uc2dc\uac04 \uc18c\uc2a4 \uc120\ud0dd.<\/li>\n<\/ul>\n<h2>\uc8fc\uc694 \ud2b9\uc9d5 \ubc0f \uc720\uc0ac \uc6a9\uc5b4\uc640\uc758 \ube44\uad50<\/h2>\n<p>NTP\ub97c \ub2e4\ub978 \uc2dc\uac04 \ub3d9\uae30\ud654 \ud504\ub85c\ud1a0\ucf5c\uacfc \ube44\uad50:<\/p>\n<table>\n<thead>\n<tr>\n<th>\ud2b9\uc9d5<\/th>\n<th>NTP<\/th>\n<th>PTP(\uc815\ubc00 \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c)<\/th>\n<th>TSP(\uc2dc\uac04 \ub3d9\uae30\ud654 \ud504\ub85c\ud1a0\ucf5c)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc815\ud655\uc131<\/td>\n<td>\ub192\uc740<\/td>\n<td>\ub9e4\uc6b0 \ub192\uc74c<\/td>\n<td>\ubcf4\ud1b5\uc758<\/td>\n<\/tr>\n<tr>\n<td>\ubcf5\uc7a1\uc131<\/td>\n<td>\ubcf4\ud1b5\uc758<\/td>\n<td>\ub192\uc740<\/td>\n<td>\ub0ae\uc740<\/td>\n<\/tr>\n<tr>\n<td>\ubcf4\uc548<\/td>\n<td>\uc88b\uc740<\/td>\n<td>\ubcf4\ud1b5\uc758<\/td>\n<td>\ub0ae\uc740<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>NTP\uc640 \uad00\ub828\ub41c \ubbf8\ub798\uc758 \uad00\uc810\uacfc \uae30\uc220<\/h2>\n<p>NTP\uc758 \ud5a5\ud6c4 \uac1c\ubc1c\uc5d0\ub294 \uc815\ud655\ub3c4 \ud5a5\uc0c1, \ubcf4\uc548 \uc870\uce58 \ubc0f IoT \uc7a5\uce58\uc640 \uac19\uc740 \uc2e0\uae30\uc220\uacfc\uc758 \ud1b5\ud569\uc774 \ud3ec\ud568\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ud504\ub85d\uc2dc \uc11c\ubc84\ub97c \ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c\uacfc \uc0ac\uc6a9\ud558\uac70\ub098 \uc5f0\uacb0\ud558\ub294 \ubc29\ubc95<\/h2>\n<p>OneProxy\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uac83\uacfc \uac19\uc740 \ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \uc911\uac1c\uc790 \uc5ed\ud560\uc744 \ud558\uace0, NTP \uc694\uccad\uc744 \uc804\ub2ec\ud558\uace0, \ucd94\uac00 \ubcf4\uc548 \uc870\uce58\ub97c \uc81c\uacf5\ud568\uc73c\ub85c\uc368 NTP\uc5d0\uc11c \uc5ed\ud560\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uad00\ub828\ub41c \ub9c1\ud06c\ub4e4<\/h2>\n<ul>\n<li><a href=\"http:\/\/www.ntp.org\/\" target=\"_new\" rel=\"noopener nofollow\">NTP \uacf5\uc2dd \uc6f9\uc0ac\uc774\ud2b8<\/a><\/li>\n<li><a href=\"https:\/\/tf.nist.gov\/\" target=\"_new\" rel=\"noopener nofollow\">NIST\uc758 \uc2dc\uac04 \ubc0f \uc8fc\ud30c\uc218 \ubd80\ubb38<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/kr\/\" target=\"_new\" rel=\"noopener\">OneProxy \uc11c\ube44\uc2a4<\/a><\/li>\n<li><a href=\"https:\/\/datatracker.ietf.org\/wg\/ntp\/about\/\" target=\"_new\" rel=\"noopener nofollow\">IETF NTP \uc6cc\ud0b9 \uadf8\ub8f9<\/a><\/li>\n<\/ul>\n<p>\ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04 \ud504\ub85c\ud1a0\ucf5c(Network Time Protocol)\uc758 \uc138\uacc4\ub97c \ub354 \uae4a\uc774 \ud0d0\uad6c\ud558\ub824\ub294 \uc0ac\ub78c\ub4e4\uc744 \uc704\ud574 \uc774 \ub9ac\uc18c\uc2a4\ub294 NTP\uc5d0 \ub300\ud55c \ud3ec\uad04\uc801\uc778 \ud1b5\ucc30\ub825, \ud45c\uc900 \ubc0f \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ube44\uc988\ub2c8\uc2a4 \uc6a9\ub3c4\uc774\ub4e0 \uac1c\uc778 \ud0d0\uc0c9\uc774\ub4e0 NTP\uc5d0 \ub300\ud55c \uc774\ud574\ub294 \uc624\ub298\ub0a0\uc758 \uc0c1\ud638 \uc5f0\uacb0\ub41c \ub514\uc9c0\ud138 \uc2dc\ub300\uc5d0 \uc911\ucd94\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>","protected":false},"featured_media":478196,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478195","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Network Time Protocol: The Foundation of Time Synchronization<\/mark>","faq_items":[{"question":"What is Network Time Protocol (NTP)?","answer":"<p>Network Time Protocol (NTP) is a system designed to synchronize the clocks of computers and devices within a network to a common time source. It ensures accurate and coordinated timekeeping across various platforms and is widely used in various applications that require precise time measurements.<\/p>"},{"question":"How did Network Time Protocol originate?","answer":"<p>Network Time Protocol originated in 1981 when David L. Mills first described the concept in RFC 778. The formal definition came in 1985 with RFC 958, and since then, the protocol has undergone several revisions and improvements.<\/p>"},{"question":"What are the main features of NTP?","answer":"<p>The key features of NTP include high accuracy (often within 10 milliseconds over the public internet), flexibility to work across various network topologies, and security measures such as authentication to prevent unauthorized time alterations.<\/p>"},{"question":"How does Network Time Protocol work?","answer":"<p>NTP works by measuring the time it takes for a message to travel between a client and a server. It calculates the round-trip delay and the offset between server and client times, making the necessary adjustments to align the client's clock with the server's time.<\/p>"},{"question":"What types of Network Time Protocol exist?","answer":"<p>Two main versions of NTP exist: the full NTP implementation, suitable for all scenarios, and SNTP (Simple NTP), a simplified version suitable for less critical applications.<\/p>"},{"question":"What are the ways to use Network Time Protocol and the associated problems?","answer":"<p>NTP is used for synchronizing system clocks, coordination in distributed systems, logging, and tracking. Potential problems include network delays, malicious attacks, and hardware incompatibility. Solutions may involve using authenticated NTP servers, proper firewall configuration, and selecting suitable time sources.<\/p>"},{"question":"How does NTP compare with similar protocols?","answer":"<p>NTP offers high accuracy and good security but has moderate complexity. In comparison, PTP (Precision Time Protocol) offers very high accuracy but is more complex, while TSP (Time Sync Protocol) is simpler but offers moderate accuracy and low security.<\/p>"},{"question":"What are the future prospects related to Network Time Protocol?","answer":"<p>Future developments in NTP may include enhancements in accuracy, security measures, and integration with emerging technologies such as IoT devices.<\/p>"},{"question":"How can proxy servers be associated with Network Time Protocol?","answer":"<p>Proxy servers, like those provided by OneProxy, can act as intermediaries in NTP communication. They can forward NTP requests and may also provide additional security measures.<\/p>"},{"question":"Where can I find more information about Network Time Protocol?","answer":"<p>You can find more information about NTP from resources like the official NTP website, NIST's Time and Frequency Division, IETF NTP Working Group, and OneProxy's website. Links to these resources are available in the related links section of the article.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/478195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/478195\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media\/478196"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media?parent=478195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}