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nginx's Introduction

NGINX

Image of Nginx

PROCESS ARCH - MASTER/WORKER processes

GRACEFULLY LOAD WORKER PROCESS

ASYNC Architecture is non blocking mode

Reverse proxy

Protocol support

  • HTTP1/2 , Server push (style sheet, CSS , IMAGES reduce RTT-round trip time eventually boost performance)
  • TCP/UDP (TCP-> SMTP , LDAP || UDP-> DNS , SYSLOG , RADIUS)
  • gRPC
  • FASTCGI
  • MEMCACHED
  • SCGI/UWCGI

Load balancing

Upstream servers Block

  • Weight=5
  • backup
  • down
  • slow_start=30s
  • max_conns
  • queue 100 timeout=70

Algorithms

  • Round robin (default)
  • least_conn
  • ip_hash
  • Generic hash $request_uri consistent
  • least_time
    • header
    • last_byte
    • last_byte inflight
  • random two least_time=last_byte

Session persistence

  • Sticky cookie
  • Sticky route
  • Sticky learn (most sophisticated server side cookie, not at client side)

SECURITY

TLS termination

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