How to start nginx via different port other than 80

Question

Hi I am a newbie on nginx  I tried to set it up on my server running Ubuntu 4    which already has apache running   So after I apt-get install it  I tried to start nginx  Then I get the message like this   Starting nginx  the configuration file  etc nginx nginx conf syntax is ok configuration file  etc nginx nginx conf test is successful  emerg   bind   to 0 0 0 0 80 failed  98  Address already in use   emerg   bind   to 0 0 0 0 80 failed  98  Address already in use   emerg   bind   to 0 0 0 0 80 failed  98  Address already in use   emerg   bind   to 0 0 0 0 80 failed  98  Address already in use   emerg   bind   to 0 0 0 0 80 failed  98  Address already in use    That makes sense as Apache is using port 80   Then I tried to modify nginx conf  I reference some articles  so I changed it like so      server            listen       8080           location              proxy pass  http   xx xx xx xx 9500           proxy set header   Host              host 8080           proxy set header   X-Real-IP         remote addr           proxy set header   X-Forwarded-For   proxy add x forwarded for           proxy set header Via     nginx               After saving this and try to start nginx again   I still get the same error as previously   I cannot really find a related post about this  could any good people shred some light   Thanks in advance                                                                                I should post all the content in conf here   user www-data  worker processes  1   error log   var log nginx error log  pid         var run nginx pid   events       worker connections  1024        multi accept on     http       include        etc nginx mime types       access log   var log nginx access log       sendfile        on       tcp nopush     on        keepalive timeout  0      keepalive timeout  65      tcp nodelay        on       gzip  on      gzip disable  MSIE  1-6        SV1         include  etc nginx conf d   conf      include  etc nginx sites-enabled        server            listen       81           location              proxy pass  http   94 143 9 34 9500           proxy set header   Host              host 81           proxy set header   X-Real-IP         remote addr           proxy set header   X-Forwarded-For   proxy add x forwarded for           proxy set header Via     nginx                         mail         See sample authentication script at        http   wiki nginx org NginxImapAuthenticateWithApachePhpScript        auth http localhost auth php        pop3 capabilities  TOP   USER         imap capabilities  IMAP4rev1   UIDPLUS         server            listen     localhost 110           protocol   pop3           proxy      on               server            listen     localhost 143           protocol   imap           proxy      on              Basically   I changed nothing except adding the server part

User · Answer

Follow this  Open your config file  vi  etc nginx conf d default conf   Change port number on which you are listening   listen       81  server name  localhost    Add a rule to iptables   vi  etc sysconfig iptables  -A INPUT -m state --state NEW -m tcp -p tcp --dport 81 -j ACCEPT   Restart IPtables   service iptables restart    Restart the nginx server  service nginx restart   Access yr nginx server files on port 81

User · Answer

You have to go to the  etc nginx sites-enabled  and if this is the default configuration  then there should be a file by name  default   Edit that file by defining your desired port  in the snippet below  we are serving the Nginx instance on port 81   server       listen 81      To start the server  run the command line below   sudo service nginx start   You may now access your application on port 81  for localhost  http   localhost 81

User · Answer

If you are on windows then below port related server settings are present in file nginx conf at  lt  nginx installation path   conf folder   server       listen       80      server name  localhost         Change the port number and restart the instance

User · Answer

You will need to change the configure port of either Apache or Nginx  After you do this you will need to restart the reconfigured servers  using the  service  command you used     Apache  Edit  sudo subl  etc apache2 ports conf    and change the 80 on the following line to something different    Listen 80   If you just change the port or add more ports here  you will likely also have to change the VirtualHost statement in  sudo subl  etc apache2 sites-enabled 000-default conf   and change the 80 on the following line to something different     lt VirtualHost   80 gt    then restart by    sudo service apache2 restart     Nginx  Edit    etc nginx sites-enabled default   and change the 80 on the following line    listen 80    then restart by    sudo service nginx restart

User · Answer

If you are experiencing this problem when using Docker be sure to map the correct port numbers  If you map port 81 80 when running docker  or through docker-compose yml   your nginx must listen on port 80 not 81  because docker does the mapping already   I spent quite some time on this issue myself  so hope it can be to some help for future googlers

[ubuntu] How to start nginx via different port(other than 80)

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