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    解決nginx 503 Service Temporarily Unavailable方法示例

    時間:2019-12-10來源:系統城作者:電腦系統城

    最近網站刷新后經常出現503 Service Temporarily Unavailable錯誤,有時有可以,聯想到最近在nginx.conf里做了單ip訪問次數限制,(limit_req_zone $binary_remote_addr zone=allips:20m rate=20r/s;) 把這個數量放大后在刷新發現問題解決。(還順便把這個改大了 limit_req zone=allips burst=50 nodelay;   )為了證實該問題,反復改動該數量測試發現問題確實在這。這個數量設得太小有問題,通過fiddler發現web頁面刷新一下,因為頁面上引用的js,css,圖片都算一個連接。所以單個頁面刷新下就有可能刷爆這個限制,超過這個限制就會提示503 Service Temporarily Unavailable。

    附上nginx.conf

    
     
    1. #user nobody;
    2. worker_processes 1;
    3. #worker_rlimit_nofile 100000;
    4. #error_log logs/error.log;
    5. #error_log logs/error.log notice;
    6. #error_log logs/error.log info;
    7.  
    8. #pid logs/nginx.pid;
    9.  
    10. events {
    11. worker_connections 1024;
    12. }
    13.  
    14. http {
    15. include mime.types;
    16. default_type application/octet-stream;
    17.  
    18. ##cache##
    19. proxy_connect_timeout 5;
    20. proxy_read_timeout 60;
    21. proxy_send_timeout 5;
    22. proxy_buffer_size 16k;
    23. proxy_buffers 4 64k;
    24. proxy_busy_buffers_size 128k;
    25. proxy_temp_file_write_size 128k;
    26. proxy_temp_path /home/temp_dir;
    27. proxy_cache_path /usr/local/nginx/cache levels=1:2 keys_zone=cache_one:200m inactive=1dmax_size=30g;
    28. ##end##
    29. #limit per ip per second access times 10
    30. limit_req_zone $binary_remote_addr zone=allips:20m rate=20r/s;
    31.  
    32. #log_format main '$remote_addr - $remote_user [$time_local] "$request" '
    33. # '$status $body_bytes_sent "$http_referer" '
    34. # '"$http_user_agent" "$http_x_forwarded_for"';
    35.  
    36. #access_log logs/access.log main;
    37.  
    38. sendfile on;
    39. #tcp_nopush on;
    40.  
    41. #keepalive_timeout 0;
    42. keepalive_timeout 65;
    43.  
    44. #gzip on;
    45. upstream myweb80{
    46. ip_hash;
    47. server 192.168.3.105:80;
    48. server 192.168.3.103:80;
    49. }
    50.  
    51. upstream myweb8080{
    52. ip_hash;
    53. server 192.168.3.222:10080;
    54. #server 192.168.3.103:8080;
    55. }
    56. upstream myweb10086{
    57. ip_hash;
    58. server 192.168.3.102:10086;
    59. server 192.168.3.108:10086;
    60. }
    61. upstream myweb443{
    62. ip_hash;
    63. server 192.168.3.105:443;
    64. server 192.168.3.103:443;
    65. }
    66.  
    67. # another virtual host using mix of IP-, name-, and port-based configuration
    68. #
    69. server {
    70. listen 80;
    71. allow 218.17.158.2;
    72. allow 127.0.0.0/24;
    73. allow 192.168.0.0/16;
    74. allow 58.251.130.1;
    75. allow 183.239.167.3;
    76. allow 61.145.164.1;
    77. deny all;
    78. server_name myweb.com;
    79. location / {
    80. proxy_pass http://myweb80;
    81. proxy_set_header X-Real-IP $remote_addr;
    82. limit_req zone=allips burst=50 nodelay;
    83. }
    84. }
    85.  
    86. server {
    87. listen 8080;
    88. allow 218.17.158.2;
    89. allow 127.0.0.0/24;
    90. allow 192.168.0.0/16;
    91. allow 58.251.130.1;
    92. allow 183.239.167.3;
    93. allow 61.145.164.1;
    94. deny all;
    95. location / {
    96. proxy_pass http://myweb8080;
    97. proxy_set_header X-Real-IP $remote_addr;
    98. limit_req zone=allips burst=50 nodelay;
    99. }
    100. }
    101.  
    102. # HTTPS server
    103. #
    104. server {
    105. listen 10086 ssl;
    106. server_name localhost;
    107. allow 218.17.158.2;
    108. allow 127.0.0.0/24;
    109. allow 192.168.0.0/16;
    110. allow 58.251.130.1;
    111. allow 183.239.167.3;
    112. allow 61.145.164.1;
    113. #deny all;
    114. ssl_certificate ssl/1_www.myweb.com_bundle.crt;
    115. ssl_certificate_key ssl/2_www.myweb.com.key;
    116.  
    117. # ssl_session_cache shared:SSL:1m;
    118. # ssl_session_timeout 5m;
    119.  
    120. # ssl_ciphers HIGH:!aNULL:!MD5;
    121. # ssl_prefer_server_ciphers on;
    122.  
    123. location / {
    124. proxy_pass https:// myweb10086;
    125. #roft html;
    126. #index index.html index.htm;
    127. }
    128. }
    129.  
    130. 服務器{
    131. listen 443 ssl;
    132. server_name localhost;
    133.  
    134. ssl_certificate ssl / 1_www.myweb.com_bundle.crt;
    135. ssl_certificate_key ssl / 2_www.myweb.com.key;
    136.  
    137. #ssl_session_cache共享:SSL:1m;
    138. #ssl_session_timeout 5m;
    139.  
    140. #ssl_ciphers HIGH:!aNULL:!MD5;
    141. #ssl_prefer_server_ciphers on;
    142.  
    143. location / {
    144. proxy_pass https:// myweb443;
    145. #roft html;
    146. #roft html;
    147. #index index.html index.htm;
    148. }
    149. }
    150. }

    以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持我們。

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