global
    log 127.0.0.1 local0 info
    maxconn 4096

defaults
    option  dontlognull        # Do not log connections with no requests
    option  contstats          # Enable continuous traffic statistics updates
    retries 3                  # Try to connect up to 3 times in case of failure
    timeout connect 5s         # 5 seconds max to connect or to stay in queue
    timeout http-keep-alive 1s # 1 second max for the client to post next request
    timeout http-request 15s   # 15 seconds max for the client to send a request
    timeout queue 30s          # 30 seconds max queued on load balancer
    timeout client 30s  # 客户端超时时间设置为30秒，你可以根据需要调整这个值
    timeout connect 10s # 连接超时时间设置为10秒，你也可以根据需要调整
    timeout server 30s  # 服务端超时时间设置为30秒，根据需要调整
    backlog 10000              # Size of SYN backlog queue

frontend ftp_fe
    bind 0.0.0.0:20-21 name ftp-control
    bind 0.0.0.0:21100-21110 name ftp-data
    mode tcp
    option tcplog
    log global
    default_backend ftp_be21

backend ftp_be21
    balance leastconn
    stick on src
    stick-table type ip size 100k expire 1h
    server ftp-server1 47.98.251.134 check port 21

listen nvr
    bind *:200
    mode http
    server s1 192.168.3.200:80 check


listen car_plate
    bind *:98
    mode http
    server s98 192.168.3.98:80 check