{"id":32682,"date":"2019-10-31T21:48:22","date_gmt":"2019-10-31T18:48:22","guid":{"rendered":"https:\/\/prohoster.info\/blog\/ishhem-problemu-ne-v-tom-meste\/"},"modified":"2019-10-31T21:48:22","modified_gmt":"2019-10-31T18:48:22","slug":"ishhem-problemu-ne-v-tom-meste","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/ishhem-problemu-ne-v-tom-meste","title":{"rendered":"K\u00fcsimus pole vale koht","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>See on lugu t\u00f5elisest praktikast, kus v\u00e4ike probleem, h\u00e4sti maskeeritud talitlush\u00e4ire t\u00f5ttu, muutub peavaluks.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>V\u00e4ike olukorra kirjeldus:<\/h2>\n<p>\nK\u00fcla v\u00e4ikese kontoriga, kus on oma PBX (Asterisk + FreePBX) lauaarvuti riistvaral ja samasugune kohalik terminaliserver koos 1C, failihalduse ja virtuaalse RO domeinikontrol\u00f6riga. Interneti jagab Mikrotik. Kontor on v\u00e4ike, seda on piisavalt.<br \/>\nK\u00f5ik algas monitooringust (aja puudumise ja laiskuse t\u00f5ttu ei j\u00e4lgita k\u00f5ike), mis teatas \u00fche <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-los-angeles\/\"   title=\"serverilt\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3495\">serverilt<\/a> (PBX) kontoris \u00fclekuumenemisest. Samal ajal, kui kohalikud p\u00fc\u00fcdsid probleemi lahendada, hungus vanake ja rikkus veidi MySQL andmebaasi.<\/p>\n<h3>Palju viitas sellele, et on oodata muret, aga mitte seda\u2026<\/h3>\n<p>\nPole hullu, andmebaas saadi korda, k\u00f5ik peaks toimima. Kuid kohalikud kaebavad, k\u00f5ned katkevad. Olgu - FreePBX-is esineb vahel probleeme, v\u00f5tame varukoopia, taastame, k\u00f5ik on korras.<br \/>\nKuid probleem p\u00fcsib, kohalikud kaebavad j\u00e4tkuvalt, k\u00f5ned ei toimi normaalselt. Neile helistades tundub, et k\u00f5ne l\u00e4heb normi, kuid kui nad ise helistavad v\u00f5i \u00fcksteisele helistavad, on viivitus mitu sekundit. Alustan Asterisk ja FreePBX mahtude ja arusaamatute logide uurimist, probleem ei paista silma. M\u00e4letan, et STUN ja ICE probleem p\u00f5hjustas sarnast viivitust. L\u00fclitan k\u00f5ik v\u00e4lja, tulemus null.<\/p>\n<h3>Mure on tee halbadeni otsusteni:<\/h3>\n<p>\nLangen masendusse, tundide jooksul PBX-i tuhnimine ei vii hea tulemuseni, kell on juba hilja ja probleem on endiselt lahendamata.<br \/>\nJ\u00e4tan probleemi hommikusse, lootuses v\u00e4rskele m\u00f5tlemisele. Hommikul tehakse j\u00e4rjekordne eba\u00f5nnestunud otsus: kuna s\u00fcsteem on purunenud (kuigi hungus ei saanud enne nii h\u00e4vitav olla), p\u00fc\u00fcan s\u00fcsteemi parandada, installides k\u00f5ik paketid uuesti. Tulemus on veidi parem nullist, viivitus v\u00e4henes (mitte oluliselt, aga siiski edu).<br \/>\nV\u00f5tan vastu veel \u00fche halva otsuse: kui OS osaline remont (ja andmebaasi taastamine varukoopiast) andis v\u00e4ikese edu, kuid probleemi juur on endiselt ebaselge, ja olles juba kulutanud palju aega p\u00f5hjuse leidmiseks, otsustan tegutseda radikaalselt: eemaldame operatsioonis\u00fcsteemi ja installime k\u00f5ik puhtalt (\u00f5nneks automatiseerimise t\u00f5ttu on see ajaliselt vastuv\u00f5etav). Installin FreePBX-i konfiguratsiooni varukoopiast. J\u00e4llegi eba\u00f5nnestumine. Tulemus on null!<\/p>\n<h3>Meeleheide - m\u00f5istus on h\u00e4gune, lahendused muutuvad veelgi halvemaks.<\/h3>\n<p>\nJ\u00e4\u00e4n meeleheitesse. Tulevad peale t\u00e4iesti kahtlased m\u00f5tted, m\u00f5tlen: \u00e4kki on varukoopia halvas seisukorras (mul on nii juhtunud p\u00e4rast mitmeid uuendusi, mil see enam ei t\u00f6\u00f6tanud, ja ma ei suutnud p\u00f5hjust leida), ei j\u00e4\u00e4 midagi muud \u00fcle: tuleb k\u00f5ik nullist k\u00e4sitsi \u00fcles laadida. Milline h\u00e4bi! Tulemuseks on rangelt null, lisaks on aega raisatud palju!<\/p>\n<h3>Aktsepteerimine - tee arusaamiseni<\/h3>\n<p>\nDesperaatsetes katsetes m\u00f5ista toimuvat, hakkan hoolikalt logisid uurima. M\u00e4rkan mustrit. Extension'i kutsumine toimub t\u00e4pselt 5 sekundi p\u00e4rast ja kolme Extension'i r\u00fchma kutsumine 15 sekundi p\u00e4rast! Hakkan googeldama kutsumise viivitust, kuid juba kirjeldan konkreetset viivitust. Ja sattun varem leitud vastusele, inimesed r\u00e4\u00e4givad, et probleem on DNS-is, aga mina tean ju t\u00e4pselt, et probleeme ei ole, k\u00f5ik aadressid lahendatakse!<\/p>\n<h3>Ilmselge - mitte t\u00f5en\u00e4oline<\/h3>\n<p>\nPole midagi teha, v\u00f5tan k\u00e4es nslookup'i ja bingo (oleks pidanud kohe selle \u00e4ra tegema)! Peamine DNS on maas (virtuaalmasin kontrolleriga), aga ma ei m\u00e4rganudki! Kui oleks olnud \u00fcks DNS, oleks viga kohe ilmunud \ud83d\ude09<\/p>\n<h3>Kokkuv\u00f5te<\/h3>\n<p>\nElemantaalne probleem, mida oleks v\u00f5inud j\u00e4lgimine n\u00e4idata (mida peaks seadistama k\u00f5igile s\u00f5lmedele), maski all DNS-i taluvusest, viis peaaegu kahe t\u00f6\u00f6p\u00e4eva kaotamiseni lollide olukordade lahendamisel. Laiskus on t\u00f5sine peavalu, j\u00e4lgimise seadistamine v\u00f5tab minuti - otsida probleemi seal, kus seda ei ole - kaks p\u00e4eva.<\/p>\n<p class=\"for_users_only_msg\">Ainult registreeritud kasutajad saavad k\u00fcsitluses osaleda. <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/auth\/login\/\">Logige sisse<\/a><\/noindex>, palun.<\/p>\n<h2 class=\"default-block__polling-title\">Kas on sarnaseid juhtumeid ka sinuga juhtunud?<\/h2>\n<ul class=\"content-list content-list_polling\">\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Jah, v\u00e4ga harva<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Jah, harva<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Jah, tihti<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Jah, v\u00e4ga tihti<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Ei, kellegagi, ainult mitte minuga!<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Ei, mina olen v\u00e4\u00e4ramatu!<\/p>\n<\/li>\n<\/ul>\n<p>    H\u00e4\u00e4letas 2 kasutajat. 1 kasutaja hoidus.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/450044\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u042d\u0442\u043e \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u0430\u044f \u0438\u0441\u0442\u043e\u0440\u0438\u044f \u0438\u0437 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0439 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438, \u043a\u043e\u0433\u0434\u0430 \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430, \u0445\u043e\u0440\u043e\u0448\u043e \u0437\u0430\u043c\u0430\u0441\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u043e\u0442\u043a\u0430\u0437\u043e\u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c\u044e, \u043f\u0440\u0435\u0432\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f \u0432 \u0433\u043e\u043b\u043e\u0432\u043d\u0443\u044e \u0431\u043e\u043b\u044c. \u041d\u0435\u0431\u043e\u043b\u044c\u0448\u0430\u044f \u0434\u0438\u0441\u043f\u043e\u0437\u0438\u0446\u0438\u044f: \u041c\u0430\u043b\u0435\u043d\u044c\u043a\u0438\u0439 \u0444\u0438\u043b\u0438\u0430\u043b\u044c\u0447\u0438\u043a, \u0432 \u043d\u0435\u043c \u0435\u0441\u0442\u044c \u0441\u0432\u043e\u044f \u0410\u0422\u0421 (asterisk + FreePBX) \u043d\u0430 \u0431\u0430\u0437\u0435 \u0434\u0435\u0441\u043a\u0442\u043e\u043f\u043d\u043e\u0433\u043e \u0436\u0435\u043b\u0435\u0437\u0430 \u0438 \u0442\u0430\u043a\u043e\u0439-\u0436\u0435 \u043c\u0435\u0441\u0442\u043d\u044b\u0439 \u0442\u0435\u0440\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u0435\u0440\u0432\u0430\u0447\u043e\u043a \u0441 1\u0421, \u0444\u0430\u0439\u043b\u043e-\u043f\u043e\u043c\u043e\u0439\u043a\u043e\u0439 \u0438 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u043c RO \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u043c \u0434\u043e\u043c\u0435\u043d\u0430. \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442 \u0440\u0430\u0437\u0434\u0430\u0435\u0442 Mikrotik. \u0424\u0438\u043b\u0438\u0430\u043b\u044c\u0447\u0438\u043a \u043c\u0430\u043b\u0435\u043d\u044c\u043a\u0438\u0439, \u0438\u043c \u044d\u0442\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e. \u0412\u0441\u0435 \u043d\u0430\u0447\u0430\u043b\u043e\u0441\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-32682","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u042d\u0442\u043e \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u0430\u044f \u0438\u0441\u0442\u043e\u0440\u0438\u044f \u0438\u0437 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0439 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438, \u043a\u043e\u0433\u0434\u0430 \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430, \u0445\u043e\u0440\u043e\u0448\u043e 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