Error "502 Bad Gateway" - waa maxay? Sababaha iyo Remedies

user Internet kasta oo uu arkay in fariinta browser "502: Bad Gateway», taas oo macnaheedu yahay muuqaalka kore ee qalad dhinaca server web lagu jiro processing su'aal. Sababta ugu badan ee ah fashilaad la xidhiidha misconfigured hardware server web ama shirkadda martigelin. arrinta Standard waa DNS maaraysay aan habboonayn ama server wakiil.

Waa maxay macnaha "502: Bad Gateway"

Baadi Tani waxay muujinaysaa in codsiga ka browser si server web ku sameeyey, laakiin waxaa si qaldan u maareeyeen ama laga saaray safka caadi ah. Haddii server codsiga waxa uu ku yaalaa ka dambeeya albaab Internet ah, waxay u badan tahay dhibaatada waa in albaab ama shuqulkii server web ah, taas oo gudbiya macluumaadka si qalad ah albaabka, ka dibna waxaa la soo bandhigay in browser ee user ee.

Sababaha baadi 502. la'aanta khayraadka server

Dhibaatada ugu weyn ee dhacdo of baadi this waa ilaha server ku filnayn in ay la tacaalaan weydiimo soo socda, sababtoo ah taas oo server bilaabmin si ay baadi 502. la'aan ah khayraadka noqon karaa hardware (la'aanta xasuusta, xawaaraha processing ku filnayn ama drive) iyo software la xiriira server misconfiguration ama software loo isticmaalo.

Laakiin waxaa jira xaalado ay server leh khayraad ku filan si ay u sii xilliyo dhalin qalad 502: Bad Gateway. Waa maxay waxa ay noqon kartaa, haddii aan fashilaad hardware?

xadka Resource si toos ah loo gelin karaa marka aad baxdo server u gaar ah VPS ama la wadaago baxsan marti qorshaha canshuur ah. Sidaas darteed, server ka ma qaadi karaan load hadda.

server Web sida Apache, waxay leeyihiin tiro go'an oo gacanta ku haya codsi, kaas oo ku qeexan yihiin in ay u qaabeynta. Haddii labada ay mashquul ku yihiin, codsiga soo socda ayaa la galay safaf, iyo iyadoo aan laga yaabaa in ka badan hal daqiiqo, waayo, mid kasta oo iyaga ka mid ah. Haddii ay dhacdo in codsiga looga fekero waa galgasho oo user la soo bandhigay qaladka Handler ah 502. Intaa waxaa si fudud waxaa laga yaabaa in aysan haysan khayraadka hadda ku filan heli karo safka processing caadiga ah.

Haddii aad isticmaalayso on PHP server + software FastCGI xidhmooyinkoodii at tiro ka mid ah hababka php-CGI non-filaayo in had iyo jeer kac dollar la'aan iyo khayraadka.

Sababaha ugu badan ee la'aan ah ilaha dhaqaale ee codsiyada processing

1. server ma awoodi karo in tirada hadda ee visitors isku mar. Sidoo kale, qayb weyn oo ka mid ah ilaha ugu bixisaan kala duwan caarada search engine , iyo qabnay software qaldan.
2. dollar server inta lagu guda jiro Hackers DDos-attack markii server waa la keenay fashilka of tiro badan oo ah codsiyada isku mar si loo hawl.
3. Waxaa jira jeer marka la isticmaalayo adeegyada hosting dalwaddii si lama filaan ah qalad 502: Bad Gateway. Maxay ka dhigan tahay? Tani waxay muujin kartaa dhibaato dhinaca ciidanka, oo loo yaqaan E. overselling, t. Shirkadda Hosting geliya hal server lacagta ah ee macmiilka la xisaabay in daqiiqado of load ugu sarreysa hadda ay ka maqan khayraadka hardware.
4. qaabeynta khaldan ee server laftiisa, ama la'aanta software ama waafaqsan hardware.
5. Isticmaalka fur khayraadka dibadda online, sida counter booqdaha ah, basaasiinta kala duwan, qabnay. baadi The dhici kara in ay dhacdo dhibaato ilo dibadda.
6. Download files waaweyn in server marka tayada liidata ee internet.

Khaladaadka PHP Script

Error 502 dhici karaan sababtoo ah qabnay, fur-tago ama kordhin in PHP luqada, taas oo dhamaystaan server hirgelinta ma gudbiyaan code u dhigma. Tusaale ahaan, in ay curiyaan qalad 502: Bad Gateway nginx sida mid ka mid ah wakiil ka fursadaha server yaabaa in go'aan khaldan xaaladda script iyo aragtida of jarida leh adeegyada server web ah sida nidaamka failure ah.

Sidaas daraaddeed, dhammaan macluumaadka guurto ah (sawiro, pages site, Robots) gudbiyo si habboon oo aan qalad ku shuban. Waa maxay macnaha "502: Bad Gateway" kiiskan? Taasi failure dhaco waa markii degsado qabnay software, fur-tago iyo kordhin.

tallaabooyin sax ah 502

Tallaabada ugu horreysa waa in ay u falanqeeyaan load server hadda, gaar ahaan waqtiyada qaladka. fiiro gaar ah in la bixiyo, in ay xasuusta load iyo baahida loo qabo in la kordhiyo ay size si loo hagaajiyo processing su'aal.

Hubi meesha saxda ah ee xadka on tirada isku mar baaraandegi by habka php-CGI. Waxay u qaabeynta qaldan keenaysaa in adeeg deg deg ah oo fariin dhacdo dollar joogto ah "502: Bad Gateway". Waa maxay iyo sida si ay ula qabsadaan xadka geedi socodka, ka heli bixiyaha miiska adeega martigelin.

Yaree codsiyada in khayraadka network dibadda, oo wuxuu u yeelay wakhtiga xaddidan ee ay loading iyo jawaabta. Tani waxay u ogolaaneysaa in aad aragto, waxa inuu ka tago ilaha server ee, iyo ka caawin takhaluso dibadda "Godoo kale" ee goobta.

In case of shaki goobaha overselling ama aan sax ahayn u qaabeynta server, la xiriir ciidanka u taageero macaamiisha. Haddii ay jirto dareen-celin lahayn oo ay dhibaatada sii socoto, isbedel martigelin bixiyaha. server la heli karin oo keeni karta in khasaaraha ay sabab u tahay qalad fudud 502: Bad Gateway. Waa maxay tan micnaheedu ganacsiga, waxaan u maleynayaa in aan loo baahan yahay si ay u sharxaan.