問題總是等著自己去解決，剛弄了下nginx開機自啟動和開機禁用防火牆，可是在瀏覽器訪問卻報了403 Forbidden錯誤。

檢視錯誤日誌，發現是許可權不足導致的。

[[email protected] logs]# cat error.log 
2018/04/13 08:54:50 [emerg] 1179#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2018/04/13 08:54:50 [emerg] 1179#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2018/04/13 08:54
 
:50 [emerg] 1179#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2018/04/13 08:54:50 [emerg] 1179#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2018/04/13 08:54:50 [emerg] 1179#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2018/04/13 08:54:50 [emerg] 1179#0: still could not bind()
2018/04/13 08:55:03 [notice] 1180
 
#0: signal process started
2018/04/13 10:02:45 [error] 918#0: *1 "/root/hbk/nginx2//html/index.html" is forbidden (13: Permission denied), client:uest: "GET / HTTP/1.1", host: "192.168.254.128"
2018/04/13 10:02:45 [error] 918#0: *1 open() "/root/hbk/nginx2//html/favicon.ico" failed (13: Permission denied), clienequest: "GET /favicon.ico HTTP/1.1"
 
, host: "192.168.254.128", referrer: "http://192.168.254.128/"
2018/04/13 10:02:52 [error] 918#0: *1 "/root/hbk/nginx2//html/index.html" is forbidden (13: Permission denied), client:uest: "GET / HTTP/1.1", host: "192.168.254.128"
2018/04/13 10:02:52 [error] 918#0: *1 open() "/root/hbk/nginx2//html/favicon.ico" failed (13: Permission denied), clienequest: "GET /favicon.ico HTTP/1.1", host: "192.168.254.128", referrer: "http://192.168.254.128/"
2018/04/13 10:03:05 [error] 918#0: *1 "/root/hbk/nginx2//html/index.html" is forbidden (13: Permission denied), client:uest: "GET / HTTP/1.1", host: "192.168.254.128"

網上看了相關幾篇部落格，才知道是因為配置檔案conf/nginx.conf檔案的執行使用者和當前使用者不一致導致的，把之前的nobody改成當前使用者root。

user root;
worker_processes  4;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}

重啟配置即可，問題完美解決。