{"id":16486,"date":"2026-06-23T22:26:11","date_gmt":"2026-06-23T16:26:11","guid":{"rendered":"https:\/\/dtasiagroup.com\/syslogopediatechnical-guide-to-syslog-and-modern-log-pipelines\/"},"modified":"2026-07-22T09:14:44","modified_gmt":"2026-07-22T03:14:44","slug":"syslogopediatechnical-guide-to-syslog-and-modern-log-pipelines","status":"publish","type":"post","link":"https:\/\/dtasiagroup.com\/vi\/syslogopediatechnical-guide-to-syslog-and-modern-log-pipelines\/","title":{"rendered":"Syslogopedia: C\u1ea9m nang k\u1ef9 thu\u1eadt v\u1ec1 Syslog v\u00e0 c\u00e1c Pipeline x\u1eed l\u00fd log hi\u1ec7n \u0111\u1ea1i"},"content":{"rendered":"\n
\"\"\/<\/figure>\n\n\n\n

Trong nhi\u1ec1u th\u1eadp k\u1ef7 qua, Syslog \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ghi log trong h\u1ea1 t\u1ea7ng CNTT. C\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng, h\u1ec7 \u0111i\u1ec1u h\u00e0nh, t\u01b0\u1eddng l\u1eeda v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ec1u s\u1eed d\u1ee5ng Syslog \u0111\u1ec3 g\u1eedi d\u1eef li\u1ec7u v\u1eadn h\u00e0nh<\/strong>.<\/p>\n\n\n\n

Tuy nhi\u00ean, \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng ghi log \u0111\u00e1ng tin c\u1eady, vi\u1ec7c ch\u1ec9 \u0111\u01a1n thu\u1ea7n chuy\u1ec3n ti\u1ebfp c\u00e1c b\u1ea3n ghi log l\u00e0 ch\u01b0a \u0111\u1ee7. C\u00e1c k\u1ef9 s\u01b0 c\u1ea7n hi\u1ec3u r\u00f5 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Syslog, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c phi\u00ean b\u1ea3n tri\u1ec3n khai, c\u0169ng nh\u01b0 c\u00e1ch c\u00e1c pipeline x\u1eed l\u00fd log v\u1eadn h\u00e0nh trong c\u00e1c m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng t\u1ea3i l\u1edbn.<\/p>\n\n\n\n

Syslogopedia l\u00e0 m\u1ed9t kho tri th\u1ee9c \u0111\u01b0\u1ee3c tuy\u1ec3n ch\u1ecdn, t\u1eadp trung v\u00e0o vi\u1ec7c h\u1ec7 th\u1ed1ng h\u00f3a nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y. T\u1ea1i \u0111\u00e2y, ng\u01b0\u1eddi \u0111\u1ecdc c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u00e1c b\u00e0i vi\u1ebft chuy\u00ean s\u00e2u, nh\u1eefng ph\u00e2n t\u00edch v\u1ec1 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng v\u00e0 c\u00e1c th\u1ef1c ti\u1ec5n k\u1ef9 thu\u1eadt li\u00ean quan \u0111\u1ebfn Syslog c\u0169ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng ghi log d\u1ef1a tr\u00ean Syslog<\/p>\n\n\n\n

To\u00e0n b\u1ed9 n\u1ed9i dung \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean nhi\u1ec1u th\u1eadp k\u1ef7 kinh nghi\u1ec7m th\u1ef1c ti\u1ec5n trong vi\u1ec7c thi\u1ebft k\u1ebf, tri\u1ec3n khai v\u00e0 v\u1eadn h\u00e0nh h\u1ea1 t\u1ea7ng ghi log.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Syslog and Axoflow<\/h2>\n\n\n\n

Tr\u00ecnh n\u1ec1n (daemon) Syslog nguy\u00ean b\u1ea3n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho nh\u1eefng m\u00f4i tr\u01b0\u1eddng h\u1ea1 t\u1ea7ng t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n. Tuy nhi\u00ean, khi quy m\u00f4 v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng gia t\u0103ng, nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a n\u00f3 c\u0169ng d\u1ea7n b\u1ed9c l\u1ed9 r\u00f5.<\/strong><\/p>\n\n\n\n

N\u0103m 1998, k\u1ef9 s\u01b0 ph\u1ea7n m\u1ec1m Bal\u00e1zs Scheidler (khi \u0111\u00f3 c\u00f2n l\u00e0 sinh vi\u00ean \u0111\u1ea1i h\u1ecdc v\u00e0 hi\u1ec7n l\u00e0 CEO c\u1ee7a Axoflow) \u0111\u00e3 ph\u00e1t tri\u1ec3n syslog-ng \u2013 m\u1ed9t phi\u00ean b\u1ea3n m\u1edf r\u1ed9ng c\u1ee7a Syslog v\u1edbi kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 \u0111\u1ecbnh tuy\u1ebfn, l\u1ecdc v\u00e0 x\u1eed l\u00fd th\u00f4ng \u0111i\u1ec7p linh ho\u1ea1t h\u01a1n.<\/p>\n\n\n\n

Thay v\u00ec ch\u1ec9 \u0111\u01a1n thu\u1ea7n chuy\u1ec3n ti\u1ebfp c\u00e1c b\u1ea3n ghi log, syslog-ng gi\u1edbi thi\u1ec7u m\u00f4 h\u00ecnh pipeline x\u1eed l\u00fd log, cho ph\u00e9p d\u1eef li\u1ec7u log \u0111\u01b0\u1ee3c l\u1ecdc (filter), ph\u00e2n t\u00edch c\u00fa ph\u00e1p (parse), chuy\u1ec3n \u0111\u1ed5i (transform) v\u00e0 \u0111\u1ecbnh tuy\u1ebfn (route) t\u1edbi nhi\u1ec1u \u0111\u00edch kh\u00e1c nhau.<\/strong><\/p>\n\n\n\n

Theo th\u1eddi gian, syslog-ng™ \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p tri\u1ec3n khai Syslog \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong c\u00e1c h\u1ec7 th\u1ed1ng ghi log m\u00e3 ngu\u1ed3n m\u1edf c\u0169ng nh\u01b0 c\u00e1c m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p.<\/p>\n\n\n\n

Bal\u00e1zs \u0111\u00e3 c\u00f3 h\u01a1n hai th\u1eadp k\u1ef7 nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c gi\u1ea3i ph\u00e1p v\u1ec1 h\u1ea1 t\u1ea7ng ghi log, pipeline d\u1eef li\u1ec7u b\u1ea3o m\u1eadt v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd log quy m\u00f4 l\u1edbn. Axoflow ti\u1ebfp t\u1ee5c k\u1ebf th\u1eeba v\u00e0 ph\u00e1t tri\u1ec3n nh\u1eefng th\u00e0nh qu\u1ea3 \u0111\u00f3 th\u00f4ng qua syslog-ng v\u00e0 AxoSyslog \u2013 phi\u00ean b\u1ea3n fork theo gi\u1ea5y ph\u00e9p GPLv3 c\u1ee7a syslog-ng™.<\/p>\n\n\n\n

\"\"\/<\/a><\/figure>\n\n\n\n

<\/p>\n\n\n\n

T\u00ecm hi\u1ec3u v\u1ec1 Syslog<\/h1>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Giao th\u1ee9c n\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ghi log<\/strong><\/p>\n\n\n\n

Syslog l\u00e0 m\u1ed9t trong nh\u1eefng giao th\u1ee9c ghi log l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t hi\u1ec7n nay. Router, m\u00e1y ch\u1ee7 Linux, c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng \u0111\u1ec1u t\u1ea1o ra c\u00e1c th\u00f4ng \u0111i\u1ec7p Syslog nh\u01b0 m\u1ed9t ph\u1ea7n trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng.<\/strong><\/p>\n\n\n\n

Ch\u00ednh v\u00ec t\u00ednh ph\u1ed5 bi\u1ebfn n\u00e0y, Syslog th\u01b0\u1eddng tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ghi log t\u1eadp trung (centralized logging).<\/p>\n\n\n\n

Tuy nhi\u00ean, giao th\u1ee9c Syslog \u0111\u00e3 ph\u00e1t tri\u1ec3n d\u1ea7n theo th\u1eddi gian th\u00f4ng qua nhi\u1ec1u phi\u00ean b\u1ea3n RFC (Request for Comments) v\u00e0 c\u00e1c c\u00e1ch tri\u1ec3n khai kh\u00e1c nhau. Do \u0111\u00f3, \u0111\u1ecbnh d\u1ea1ng th\u00f4ng \u0111i\u1ec7p, c\u01a1 ch\u1ebf truy\u1ec1n t\u1ea3i c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o t\u1eebng m\u00f4i tr\u01b0\u1eddng tri\u1ec3n khai.<\/p>\n\n\n\n

C\u00e1c b\u00e0i vi\u1ebft trong Syslogopedia s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5:<\/p>\n\n\n\n

    \n
  • C\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t th\u00f4ng \u0111i\u1ec7p Syslog.<\/li>\n\n\n\n
  • C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n t\u1ea3i (transport) kh\u00e1c nhau trong Syslog.<\/li>\n\n\n\n
  • C\u00e1ch c\u00e1c gi\u1ea3i ph\u00e1p nh\u01b0 syslog-ng m\u1edf r\u1ed9ng v\u00e0 n\u00e2ng cao kh\u1ea3 n\u0103ng c\u1ee7a giao th\u1ee9c Syslog.<\/li>\n\n\n\n
  • C\u00e1ch c\u00e1c pipeline x\u1eed l\u00fd log ti\u1ebfp nh\u1eadn, x\u1eed l\u00fd v\u00e0 \u0111\u1ecbnh tuy\u1ebfn c\u00e1c b\u1ea3n ghi log trong h\u1ea1 t\u1ea7ng hi\u1ec7n \u0111\u1ea1i.<\/li>\n<\/ul>\n\n\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    Trong nhi\u1ec1u th\u1eadp k\u1ef7 qua, Syslog \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ghi log trong h\u1ea1 t\u1ea7ng CNTT. C\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng, h\u1ec7 \u0111i\u1ec1u h\u00e0nh, t\u01b0\u1eddng l\u1eeda v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ec1u s\u1eed d\u1ee5ng Syslog \u0111\u1ec3 g\u1eedi d\u1eef li\u1ec7u v\u1eadn h\u00e0nh.<\/p>\n","protected":false},"author":11,"featured_media":16371,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56,79],"tags":[],"class_list":["post-16486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-bai-viet"],"_links":{"self":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts\/16486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/comments?post=16486"}],"version-history":[{"count":1,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts\/16486\/revisions"}],"predecessor-version":[{"id":16488,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts\/16486\/revisions\/16488"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/media\/16371"}],"wp:attachment":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/media?parent=16486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/categories?post=16486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/tags?post=16486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}