server {
        listen 8080;
        server_name  localhost;
        charset utf-8;
        root    /opt/nginx-web/files;             # 文件存放目錄
        # 下載
        location / {
            autoindex on;                         # 啟用自動(dòng)首頁(yè)功能
            autoindex_format html;                # 首頁(yè)格式為HTML
            autoindex_exact_size off;             # 文件大小自動(dòng)換算
            autoindex_localtime on;               # 按照服務(wù)器時(shí)間顯示文件時(shí)間
            default_type application/octet-stream;# 將當(dāng)前目錄中所有文件的默認(rèn)MIME類型設(shè)置為
                                              # application/octet-stream
            if ($request_filename ~* ^.*?\.(txt|doc|pdf|rar|gz|zip|docx|exe|xlsx|ppt|pptx)$){
                # 當(dāng)文件格式為上述格式時(shí)，將頭字段屬性Content-Disposition的值設(shè)置為"attachment"
                add_header Content-Disposition: 'attachment;';
            }
            sendfile on;                          # 開(kāi)啟零復(fù)制文件傳輸功能
            sendfile_max_chunk 1m;                # 每個(gè)sendfile調(diào)用的最大傳輸量為1MB
            tcp_nopush on;                        # 啟用最小傳輸限制功能
            aio on;                               # 啟用異步傳輸
            directio 5m;                          # 當(dāng)文件大于5MB時(shí)以直接讀取磁盤(pán)的方式讀取文件
            directio_alignment 4096;              # 與磁盤(pán)的文件系統(tǒng)對(duì)齊
            output_buffers 4 32k;                 # 文件輸出的緩沖區(qū)大小為128KB
            limit_rate 1m;                        # 限制下載速度為1MB
            limit_rate_after 2m;                  # 當(dāng)客戶端下載速度達(dá)到2MB時(shí)進(jìn)入限速模式
            max_ranges 4096;                      # 客戶端執(zhí)行范圍讀取的最大值是4096B
            send_timeout 20s;                     # 客戶端引發(fā)傳輸超時(shí)時(shí)間為20s
            postpone_output 2048;                 # 當(dāng)緩沖區(qū)的數(shù)據(jù)達(dá)到2048B時(shí)再向客戶端發(fā)送
            chunked_transfer_encoding on;         # 啟用分塊傳輸標(biāo)識(shí)
        }
    }
 

[root@ansible01 nginx]# cat /etc/nginx/nginx.conf|grep -v "^$"|grep -v "^#"
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /usr/share/nginx/modules/*.conf;
events {
    worker_connections 1024;
}
http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 4096;
    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;
        # Load configuration files for the default server block.
    server {
        listen 8080;
        server_name  11.0.1.18;
        charset utf-8;
        root    /opt/nginx-web/files;             # 文件存放目錄
        # 下載
        location / {
            autoindex on;                         # 啟用自動(dòng)首頁(yè)功能
            autoindex_format html;                # 首頁(yè)格式為HTML
            autoindex_exact_size off;             # 文件大小自動(dòng)換算
            autoindex_localtime on;               # 按照服務(wù)器時(shí)間顯示文件時(shí)間
            default_type application/octet-stream;# 將當(dāng)前目錄中所有文件的默認(rèn)MIME類型設(shè)置為
                                              # application/octet-stream
            if ($request_filename ~* ^.*?\.(txt|doc|pdf|rar|gz|zip|docx|exe|xlsx|ppt|pptx)$){
                # 當(dāng)文件格式為上述格式時(shí)，將頭字段屬性Content-Disposition的值設(shè)置為"attachment"
                add_header Content-Disposition: 'attachment;'; 
            }
            sendfile on;                          # 開(kāi)啟零復(fù)制文件傳輸功能
            sendfile_max_chunk 1m;                # 每個(gè)sendfile調(diào)用的最大傳輸量為1MB
            tcp_nopush on;                        # 啟用最小傳輸限制功能
            aio on;                               # 啟用異步傳輸
            directio 5m;                          # 當(dāng)文件大于5MB時(shí)以直接讀取磁盤(pán)的方式讀取文件
            directio_alignment 4096;              # 與磁盤(pán)的文件系統(tǒng)對(duì)齊
            output_buffers 4 32k;                 # 文件輸出的緩沖區(qū)大小為128KB
            limit_rate 1m;                        # 限制下載速度為1MB
            limit_rate_after 2m;                  # 當(dāng)客戶端下載速度達(dá)到2MB時(shí)進(jìn)入限速模式
            max_ranges 4096;                      # 客戶端執(zhí)行范圍讀取的最大值是4096B
            send_timeout 20s;                     # 客戶端引發(fā)傳輸超時(shí)時(shí)間為20s
            postpone_output 2048;                 # 當(dāng)緩沖區(qū)的數(shù)據(jù)達(dá)到2048B時(shí)再向客戶端發(fā)送
            chunked_transfer_encoding on;         # 啟用分塊傳輸標(biāo)識(shí)
        }
    }
}

[root@ansible01 files]# tree /opt/nginx-web/files/
/opt/nginx-web/files/
├── doc
└── txt
2 directories, 0 files