Let me first ask you how to use nginx to tell the difference between a mobile phone and a pc.

fill in the configuration file that you want to use nginx to distinguish between computer and pc:

server {
   listen      5000;
   server_name  localhost;
   root /usr/local/build;
   if ( $http_user_agent ~ "(MIDP)|(WAP)|(UP.Browser)|(Smartphone)|(Obigo)|(Mobile)|(AU.Browser)|(wxd.Mms)|(WxdB.Browser)|(CLDC)|(UP.Link)|(KM.Browser)|(UCWEB)|(SEMC\-Browser)|(Mini)|(Symbian)|(Palm)|(Nokia)|(Panasonic)|(MOT\-)|(SonyEricsson)|(NEC\-)|(Alcatel)|(Ericsson)|(BENQ)|(BenQ)|(Amoisonic)|(Amoi\-)|(Capitel)|(PHILIPS)|(SAMSUNG)|(Lenovo)|(Mitsu)|(Motorola)|(SHARP)|(WAPPER)|(LG\-)|(LG/)|(EG900)|(CECT)|(Compal)|(kejian)|(Bird)|(BIRD)|(G900/V1.0)|(Arima)|(CTL)|(TDG)|(Daxian)|(DAXIAN)|(DBTEL)|(Eastcom)|(EASTCOM)|(PANTECH)|(Dopod)|(Haier)|(HAIER)|(KONKA)|(KEJIAN)|(LENOVO)|(Soutec)|(SOUTEC)|(SAGEM)|(SEC\-)|(SED\-)|(EMOL\-)|(INNO55)|(ZTE)|(iPhone)|(Android)|(Windows CE)|(Wget)|(Java)|(curl)|(Opera)" )
        {
                root /usr/local/website/mobile;
        }

        index index.html index.htm;
  location / {

   }
   location @fallback {
     rewrite .* /index.html break;
                                                              6,1-8        
    }
    error_page   500 502 503 504  /50x.html;
   location = /50x.html {
     root   html;
   }
}

but it is wrong to report "root" directive is not allowed here in / etc/nginx/vhost/example.conf:7,. Excuse me, why is this?

Mar.06,2021

nginx root instruction, if used in if , this if must be in location .
configuration here

   if ( $http_user_agent ~ "(MIDP)|(WAP)|(UP.Browser)|(Smartphone)|(Obigo)|(Mobile)|(AU.Browser)|(wxd.Mms)|(WxdB.Browser)|(CLDC)|(UP.Link)|(KM.Browser)|(UCWEB)|(SEMC\-Browser)|(Mini)|(Symbian)|(Palm)|(Nokia)|(Panasonic)|(MOT\-)|(SonyEricsson)|(NEC\-)|(Alcatel)|(Ericsson)|(BENQ)|(BenQ)|(Amoisonic)|(Amoi\-)|(Capitel)|(PHILIPS)|(SAMSUNG)|(Lenovo)|(Mitsu)|(Motorola)|(SHARP)|(WAPPER)|(LG\-)|(LG/)|(EG900)|(CECT)|(Compal)|(kejian)|(Bird)|(BIRD)|(G900/V1.0)|(Arima)|(CTL)|(TDG)|(Daxian)|(DAXIAN)|(DBTEL)|(Eastcom)|(EASTCOM)|(PANTECH)|(Dopod)|(Haier)|(HAIER)|(KONKA)|(KEJIAN)|(LENOVO)|(Soutec)|(SOUTEC)|(SAGEM)|(SEC\-)|(SED\-)|(EMOL\-)|(INNO55)|(ZTE)|(iPhone)|(Android)|(Windows CE)|(Wget)|(Java)|(curl)|(Opera)" )
        {
                root /usr/local/website/mobile;
        }

        index index.html index.htm;
  location / {

   }
Change

to

    index index.html index.htm;
    location / {
        if ( $http_user_agent ~ "(MIDP)|(WAP)|(UP.Browser)|(Smartphone)|(Obigo)|(Mobile)|(AU.Browser)|(wxd.Mms)|(WxdB.Browser)|(CLDC)|(UP.Link)|(KM.Browser)|(UCWEB)|(SEMC\-Browser)|(Mini)|(Symbian)|(Palm)|(Nokia)|(Panasonic)|(MOT\-)|(SonyEricsson)|(NEC\-)|(Alcatel)|(Ericsson)|(BENQ)|(BenQ)|(Amoisonic)|(Amoi\-)|(Capitel)|(PHILIPS)|(SAMSUNG)|(Lenovo)|(Mitsu)|(Motorola)|(SHARP)|(WAPPER)|(LG\-)|(LG/)|(EG900)|(CECT)|(Compal)|(kejian)|(Bird)|(BIRD)|(G900/V1.0)|(Arima)|(CTL)|(TDG)|(Daxian)|(DAXIAN)|(DBTEL)|(Eastcom)|(EASTCOM)|(PANTECH)|(Dopod)|(Haier)|(HAIER)|(KONKA)|(KEJIAN)|(LENOVO)|(Soutec)|(SOUTEC)|(SAGEM)|(SEC\-)|(SED\-)|(EMOL\-)|(INNO55)|(ZTE)|(iPhone)|(Android)|(Windows CE)|(Wget)|(Java)|(curl)|(Opera)" )
        {
            root /usr/local/website/mobile;
        }
    }
< hr >

however, I recommend using map to configure variables, which is better than if .


permission issue. Brother

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b36f06-2c05b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b36f06-2c05b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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