Trong th\u1eddi \u0111\u1ea1i k\u1ef9 thu\u1eadt s\u1ed1, khi d\u1eef li\u1ec7u ch\u1ea3y nh\u01b0 d\u00f2ng ch\u1ea3y c\u1ee7a m\u1ed9t con s\u00f4ng, vi\u1ec7c s\u1eed d\u1ee5ng proxy \u0111\u00e3 t\u0103ng v\u1ecdt trong s\u1ed1 nh\u1eefng ng\u01b0\u1eddi d\u00f9ng t\u00ecm ki\u1ebfm s\u1ef1 \u1ea9n danh, t\u1ed1c \u0111\u1ed9 v\u00e0 quy\u1ec1n truy c\u1eadp v\u00e0o n\u1ed9i dung b\u1ecb h\u1ea1n ch\u1ebf. Tuy nhi\u00ean, m\u1ed9t tr\u1edf ng\u1ea1i ph\u1ed5 bi\u1ebfn m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi g\u1eb7p ph\u1ea3i l\u00e0 l\u1ed7i "Qu\u00e1 nhi\u1ec1u y\u00eau c\u1ea7u" kh\u00e9t ti\u1ebfng. S\u1ef1 c\u1ed1 n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m gi\u00e1n \u0111o\u1ea1n quy tr\u00ecnh l\u00e0m vi\u1ec7c m\u00e0 c\u00f2n c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf hi\u1ec7u qu\u1ea3 c\u1ee7a proxy, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean k\u00e9m h\u1eefu \u00edch h\u01a1n. Vi\u1ec7c hi\u1ec3u l\u1ed7i n\u00e0y v\u00e0 nh\u1eefng t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai \u0111i\u1ec1u h\u01b0\u1edbng m\u1ea1ng l\u01b0\u1edbi ph\u1ee9c t\u1ea1p c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn.<\/p>\n
L\u1ed7i "Qu\u00e1 nhi\u1ec1u y\u00eau c\u1ea7u" th\u01b0\u1eddng ph\u00e1t sinh t\u1eeb c\u00e1c h\u1ea1n ch\u1ebf ph\u00eda m\u00e1y ch\u1ee7 nh\u1eb1m ng\u0103n ch\u1eb7n vi\u1ec7c l\u1ea1m d\u1ee5ng v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng c\u00f4ng b\u1eb1ng gi\u1eefa nh\u1eefng ng\u01b0\u1eddi d\u00f9ng. Khi ng\u01b0\u1eddi d\u00f9ng th\u1ef1c hi\u1ec7n qu\u00e1 nhi\u1ec1u y\u00eau c\u1ea7u trong m\u1ed9t th\u1eddi gian ng\u1eafn, c\u00e1c m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c trang b\u1ecb c\u01a1 ch\u1ebf gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 s\u1ebd ph\u1ea3n h\u1ed3i l\u1ed7i n\u00e0y \u0111\u1ec3 b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean c\u1ee7a h\u1ecd. <\/p>\n
H\u00e3y xem x\u00e9t k\u1ecbch b\u1ea3n m\u1ed9t tr\u00ecnh thu th\u1eadp d\u1eef li\u1ec7u web t\u1ea5n c\u00f4ng m\u1ed9t trang web b\u1eb1ng h\u00e0ng ngh\u00ecn y\u00eau c\u1ea7u thu th\u1eadp d\u1eef li\u1ec7u. Trang web, nh\u1eadn ra s\u1ef1 gia t\u0103ng n\u00e0y, s\u1ebd k\u00edch ho\u1ea1t c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7 c\u1ee7a m\u00ecnh, d\u1eabn \u0111\u1ebfn l\u1ed7i \u0111\u00e1ng s\u1ee3. C\u00f3 r\u1ea5t nhi\u1ec1u v\u00ed d\u1ee5 th\u1ef1c t\u1ebf, t\u1eeb c\u00e1c n\u1ec1n t\u1ea3ng truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i h\u1ea1n ch\u1ebf c\u00e1c l\u1ec7nh g\u1ecdi API \u0111\u1ebfn c\u00e1c trang web th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u00e1 do bot \u0111i\u1ec1u khi\u1ec3n. Do \u0111\u00f3, vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c quan \u0111i\u1ec3m c\u1ee7a m\u00e1y ch\u1ee7 l\u00e0 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c \u0111i\u1ec1u h\u01b0\u1edbng b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 n\u00e0y.<\/p>\n
B\u1ecf qua gi\u1edbi h\u1ea1n t\u1ef7 l\u1ec7<\/strong>: Kh\u00f4ng l\u00e0m quen v\u1edbi c\u00e1c gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 c\u1ee5 th\u1ec3 do m\u00e1y ch\u1ee7 \u0111\u00edch \u0111\u1eb7t ra c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i l\u1eb7p l\u1ea1i. Lu\u00f4n \u0111\u1ecdc t\u00e0i li\u1ec7u ho\u1eb7c \u0111i\u1ec1u kho\u1ea3n d\u1ecbch v\u1ee5.<\/p>\n<\/li>\n Qu\u00e1 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c Proxy \u0111\u01a1n l\u1ebb<\/strong>: S\u1eed d\u1ee5ng m\u1ed9t proxy duy nh\u1ea5t cho t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u c\u00f3 th\u1ec3 nhanh ch\u00f3ng k\u00edch ho\u1ea1t gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9. Ph\u00e2n ph\u1ed1i c\u00e1c y\u00eau c\u1ea7u tr\u00ean nhi\u1ec1u proxy c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro n\u00e0y.<\/p>\n<\/li>\n B\u1ecf qua vi\u1ec7c h\u1ea1n ch\u1ebf y\u00eau c\u1ea7u<\/strong>: G\u1eedi y\u00eau c\u1ea7u li\u00ean ti\u1ebfp m\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 s\u1ef1 ch\u1eadm tr\u1ec5 n\u00e0o c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u1edd ngay l\u1eadp t\u1ee9c. Vi\u1ec7c th\u1ef1c hi\u1ec7n t\u1ea1m d\u1eebng c\u00f3 ch\u1ee7 \u0111\u00edch gi\u1eefa c\u00e1c y\u00eau c\u1ea7u l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft.<\/p>\n<\/li>\n Ghi ch\u00e9p kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7<\/strong>: Kh\u00f4ng theo d\u00f5i c\u00e1c m\u1eabu y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i l\u1eb7p l\u1ea1i. C\u00e1c c\u00f4ng c\u1ee5 ghi nh\u1eadt k\u00fd c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c h\u00e0nh vi c\u00f3 v\u1ea5n \u0111\u1ec1 theo th\u1eddi gian.<\/p>\n<\/li>\n S\u1eed d\u1ee5ng Proxy C\u01b0 tr\u00fa Kh\u00f4ng \u0111\u00fang c\u00e1ch<\/strong>: Proxy d\u00e2n d\u1ee5ng th\u01b0\u1eddng \u00edt b\u1ecb g\u1eafn c\u1edd h\u01a1n, nh\u01b0ng ch\u00fang v\u1eabn c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i nh\u1eefng h\u1ea1n ch\u1ebf. S\u1eed d\u1ee5ng ch\u00fang trong c\u00e1c t\u00ecnh hu\u1ed1ng t\u1ea7n su\u1ea5t cao c\u00f3 th\u1ec3 ph\u1ea3n t\u00e1c d\u1ee5ng.<\/p>\n<\/li>\n<\/ol>\n V\u00ed d\u1ee5 trong Python: Xoay Proxy<\/strong>:<\/p>\n<\/li>\n V\u00ed d\u1ee5: Gi\u00e1m s\u00e1t kh\u1ed1i l\u01b0\u1ee3ng y\u00eau c\u1ea7u<\/strong>:<\/p>\n<\/li>\n Tri\u1ec3n khai c\u00e1c c\u00f4ng c\u1ee5 ghi nh\u1eadt k\u00fd n\u00e2ng cao nh\u01b0 Grafana ho\u1eb7c Kibana \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1c m\u1eabu y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n. X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ed9t bi\u1ebfn c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh c\u00e1c chi\u1ebfn l\u01b0\u1ee3c c\u1ee7a m\u00ecnh.<\/p>\n<\/li>\n S\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 gi\u1ea3i CAPTCHA<\/strong>:<\/p>\n<\/li>\n N\u1ebfu b\u1ea1n \u0111ang ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi CAPTCHA c\u00f9ng v\u1edbi gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9, vi\u1ec7c t\u00edch h\u1ee3p d\u1ecbch v\u1ee5 gi\u1ea3i CAPTCHA c\u00f3 th\u1ec3 gi\u00fap duy tr\u00ec hi\u1ec7u qu\u1ea3 thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n.<\/p>\n<\/li>\n B\u1eaft ch\u01b0\u1edbc h\u00e0nh vi c\u1ee7a con ng\u01b0\u1eddi<\/strong>:<\/p>\n<\/li>\n L\u1ed7i "Qu\u00e1 nhi\u1ec1u y\u00eau c\u1ea7u", m\u1eb7c d\u00f9 g\u00e2y kh\u00f3 ch\u1ecbu, nh\u01b0ng l\u1ea1i l\u00e0 l\u1eddi nh\u1eafc nh\u1edf v\u1ec1 m\u1ed1i quan h\u1ec7 t\u1ebf nh\u1ecb gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 m\u00e0 h\u1ecd truy c\u1eadp. B\u1eb1ng c\u00e1ch hi\u1ec3u \u0111\u01b0\u1ee3c nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5, tr\u00e1nh nh\u1eefng c\u1ea1m b\u1eaby ph\u1ed5 bi\u1ebfn v\u00e0 tri\u1ec3n khai c\u00e1c chi\u1ebfn l\u01b0\u1ee3c chu \u0111\u00e1o, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft th\u00e1ch th\u1ee9c n\u00e0y m\u1ed9t c\u00e1ch kh\u00e9o l\u00e9o. <\/p>\n Cu\u1ed1i c\u00f9ng, nh\u1eefng \u0111i\u1ec1u quan tr\u1ecdng c\u1ea7n ghi nh\u1edb l\u00e0 t\u00f4n tr\u1ecdng gi\u1edbi h\u1ea1n m\u00e1y ch\u1ee7, s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 m\u1ed9t c\u00e1ch kh\u00f4n ngoan v\u00e0 lu\u00f4n linh ho\u1ea1t trong c\u00e1ch ti\u1ebfp c\u1eadn c\u1ee7a b\u1ea1n. Khi b\u1ea1n \u0111i qua b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 r\u1ed9ng l\u1edbn v\u1edbi proxy c\u1ee7a m\u00ecnh, h\u00e3y \u0111\u1ec3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t n\u00e0y h\u01b0\u1edbng d\u1eabn b\u1ea1n \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m tr\u1ef1c tuy\u1ebfn m\u01b0\u1ee3t m\u00e0 v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>","protected":false},"excerpt":{"rendered":" Introduction In the digital age, where data flows like the currents of a river, the use of proxies has surged among users seeking anonymity, speed, and access to restricted content. However, a common stumbling block that many encounter is the notorious “Too Many Requests” error. This issue not only disrupts workflows but can also hinder […]<\/p>\n","protected":false},"author":2,"featured_media":546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[153],"tags":[309,252,311,187,312,310,308,104,66,125],"class_list":["post-545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-failures","tag-api-rate-limits","tag-error-handling","tag-http-status-codes","tag-performance-optimization","tag-programming-tips","tag-server-errors","tag-too-many-requests","tag-troubleshooting","tag-user-experience","tag-web-development"],"acf":[],"_links":{"self":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/posts\/545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/comments?post=545"}],"version-history":[{"count":0,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/posts\/545\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/media\/546"}],"wp:attachment":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/media?parent=545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/categories?post=545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/tags?post=545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Gi\u1ea3i ph\u00e1p<\/h2>\n
B\u1ea3n s\u1eeda l\u1ed7i th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/h3>\n
\n
\n python
\n import time
\n time.sleep(2) # Wait 2 seconds between requests<\/code><\/p>\n<\/li>\nGi\u1ea3i ph\u00e1p trung gian<\/h3>\n
\n
\n python
\n import time
\n retries = 5
\n for i in range(retries):
\n response = make_request()
\n if response.status_code == 429:
\n time.sleep(2 ** i) # Wait longer with each retry
\n else:
\n break<\/code><\/p>\n<\/li>\nX\u1eed l\u00fd s\u1ef1 c\u1ed1 n\u00e2ng cao<\/h3>\n
\n
C\u00f4ng c\u1ee5 & C\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/h2>\n
\n
Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n