Ta yaya ake yin cache da Nginx ba tare da fallasa amsoshin sirri ba?

Question

IT Interview Practice · Accepted Answer

Sanya a cache amsoshin da masu ziyara da aka nufa suke da izinin rabawa kawai. Bayanin samfur na jama'a da shafin asusun abokin ciniki da ya shiga suna da buƙatu daban.

## Ga yadda fallasa bayanai zai iya faruwa

Ka yi tunanin Alice ta nemi `/account` kuma Nginx ya ajiye amsarta a ƙarƙashin wannan URL. Idan Bob daga baya ya karɓi amsar cache ɗin, zai ga bayanan Alice. Matsalar ita ce an yi amfani da shared cache ga sakamakon sirri.

Fara da routes da aka bayyana a fili cewa na jama'a ne. Cache key, wadda take ba amsar da aka ajiye suna, dole ta bambance nau'o'in da suka dace kamar host, hanya, query da harshe.

## Ga route na sirri, sarrafa bangarorin biyu

Cikin server da aka riga aka saita proxy cache a wasu wurare, location ta sirri ta musamman za ta iya ƙunsar:

```nginx
location /account/ {
    proxy_pass http://127.0.0.1:3000;
    proxy_cache_bypass 1;
    proxy_no_cache 1;
}
```

`proxy_cache_bypass` yana hana karanta amsar shared cache. `proxy_no_cache` yana hana adana sabuwar amsa. Wannan misali yana kare prefix `/account/`; binciki sauran routes na sirri da locations masu gogayya ma.

## Gwada da masu amfani daban

Gwada asusu biyu da baƙon da bai shiga ba, kana duba abun ciki da halayyar cache. Bi yadda manhajar ke sarrafa `Cache-Control` da `Set-Cookie`. Idan shafin samfur na jama'a yana da farashi na musamman ga mutum, ware bayanan sirrin ko cire amsar daga shared caching.

[Takardun hukuma](https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_cache_bypass).

Ga yadda fallasa bayanai zai iya faruwa

Ga route na sirri, sarrafa bangarorin biyu

Gwada da masu amfani daban

Tambayoyi masu alaƙa