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Failed to start nginx on ubuntu 16.04 server

Posted June 17, 2020 5.6k views
Nginx 
root@ip-172-31-11-69:/# systemctl status nginx.service 
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Wed 2020-06-17 03:24:27 UTC; 18min ago

Jun 17 03:24:27 ip-172-31-11-69 systemd[1]: Starting A high performance web server and a reverse proxy server...
Jun 17 03:24:27 ip-172-31-11-69 nginx[20727]: nginx: [emerg] could not build server_names_hash, you should increase server_names_hash_bucket_size: 64
Jun 17 03:24:27 ip-172-31-11-69 nginx[20727]: nginx: configuration file /etc/nginx/nginx.conf test failed
Jun 17 03:24:27 ip-172-31-11-69 systemd[1]: nginx.service: Control process exited, code=exited status=1
Jun 17 03:24:27 ip-172-31-11-69 systemd[1]: Failed to start A high performance web server and a reverse proxy server.
Jun 17 03:24:27 ip-172-31-11-69 systemd[1]: nginx.service: Unit entered failed state.
Jun 17 03:24:27 ip-172-31-11-69 systemd[1]: nginx.service: Failed with result 'exit-code'.
root@ip-172-31-11-69:/#
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By:
snjazim

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1 answer
jasonjpeters June 17, 2020

In the /etc/nginx/nginx.conf file update the http block to include the following

http {
    ...
    server_names_hash_bucket_size 64;
    ...
}

Test your configuration with nginx -t

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  • snjazim June 17, 2020

    Thanks @jasonjpeters for your response.

    Test is failing after updating the http block.

    root@ip-172-31-11-69:/home/ubuntu# nano /etc/nginx/nginx.conf
root@ip-172-31-11-69:/home/ubuntu# nginx -t
nginx: [emerg] "server_names_hash_bucket_size" directive is duplicate in /etc/nginx/sites-enabled/ec2-13-233-150-249.ap-south-1.compute.amazonaws.com.conf:1
nginx: configuration file /etc/nginx/nginx.conf test failed
root@ip-172-31-11-69:/home/ubuntu#
    Reply Report
    • snjazim June 17, 2020 
      http {

        ##
        # Basic Settings
        ##

        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;
        # server_tokens off;

        server_names_hash_bucket_size 64;
        # server_name_in_redirect off;

        include /etc/nginx/mime.types;
        default_type application/octet-stream;

        ##
        # SSL Settings
        ##

        ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
        ssl_prefer_server_ciphers on;

        ##
        # Logging Settings
        ##

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        ##
        # Gzip Settings
        ##

        gzip on;
        gzip_disable "msie6";

        # gzip_vary on;
        # gzip_proxied any;
        # gzip_comp_level 6;
        # gzip_buffers 16 8k;
        # gzip_http_version 1.1;
        # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

        ##
        # Virtual Host Configs
        ##

        include /etc/nginx/conf.d/*.conf;
        include /etc/nginx/sites-enabled/*;
}

      ^This is the http block in my nginx.conf file

      Reply Report
    • jasonjpeters June 17, 2020

      You will need to make sure that directive is only declared once in all of your configuration files excluding the nginx.conf

      Reply Report

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