Error 502 Bad Gateway on nginx

[Lahiru Prasad]

Hi,
     Does nc -l 9000 gives the same bind error ?
If so, better to check netstat for :9000 sockets with all status, like
netstat -anp | grep :9000
to get an idea.

Regards,
Lahiru Prasad.

On Mon, Oct 7, 2019 at 11:38 AM mmpl <nginx-forum at forum.nginx.org> wrote:

> Error 502 Bad Gateway on nginx and php-fpm
> Posted by: mmpl
>
> I can't start php7-fpm in supervisor. The error log:
>
> unable to bind listening socket for address '127.0.0.1:9000': Address in >
> use (98)
>
> In browser:
>
> localhost:8090 is error: 502 Bad Gateway
>
> netstat -tulnp
>
> tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 13/nginx
> tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 13/nginx
> tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN 13/nginx
> tcp 0 0 :::3000 :::* LISTEN 11/node
> tcp 0 0 :::7000 :::* LISTEN 10/node
> ps aux
>
> / # ps aux
> PID USER TIME COMMAND
> 1 root 0:00 {bootloader} /bin/sh /boot/bootloader
> 8 root 0:01 {supervisord} /usr/bin/python2 /usr/bin/supervisord
> 62 root 0:00 /bin/sh
> 92 root 0:00 nginx: master process /usr/sbin/nginx
> 93 root 0:00 nginx: worker process
> 94 root 0:00 nginx: worker process
> 122 root 0:00 ps aux
> php-fpm.d/www/conf
>
> [www]
>
> user = nobody
> group = nobody
>
> listen = 127.0.0.1:9000
>
> pm = dynamic
>
> pm.max_children = 5
>
> pm.start_servers = 2
>
> pm.min_spare_servers = 1
>
> pm.max_spare_servers = 3
> /etc/nginx/sites-enabled/page1
>
> server {
> listen 8090;
> root /usr/bin;
> server_name localhost;
> access_log /dev/null;
> error_log /dev/null;
>
> location / {
> proxy_pass http://127.0.0.0:7000;
> proxy_http_version 1.1;
> proxy_set_header Upgrade $http_upgrade;
> proxy_set_header Connection 'upgrade';
> proxy_set_header Host $host;
> proxy_set_header X-Real-IP $remote_addr;
> proxy_set_header X-Fowarded-For $proxy_add_x_forwarded_for;
> proxy_set_header X-Fowarded-Proto $scheme;
> proxy_cache_bypass $http_upgrade;
>
> try_files $uri $uri/ =404;
> }
>
> location ~ \.(gif) {
> root /var/lib;
> }
>
> }
> /etc/nginx/sites-enabled/page2
>
> server {
> server_name localhost;
> root /www;
> index index.php;
> access_log /dev/null;
> error_log /dev/null;
>
> client_max_body_size 100M;
> fastcgi_read_timeout 1800;
>
> location / {
> try_files $uri $uri/ /index.php$query_string;
> }
>
> location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ {
> expires max;
> log_not_found off;
> access_log off;
> }
>
> location ~ \.php$ {
> try_files $uri =404;
> include fastcgi_params;
> fastcgi_index index.php;
> fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
> fastcgi_pass 127.0.0.1:9000;
> }
> }
> Where is error? I don't just any idea.
>
> Posted at Nginx Forum:
> https://forum.nginx.org/read.php?2,285807,285807#msg-285807
>
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