Debian 10
Nginx
nginx error log
I’m experiencing 502 gateway errors when accessing my site from time to time.
Ubuntu 20.04, Nginx, PHP-FPM 7.4, Virtualmin, Cloudflare
/etc/php/7.4/fpm/pool.d pastebin
/etc/php/7.4/fpm/pool.d pastepin
nginx error log
```
2021/01/02 17:14:00 [error] 56540#56540: *248074 connect() failed (111: Connection refused) while connecting to upstream, client: 188.114.110.89, server: example.com, request: "POST /index.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:8000", host: "www.example.com", referrer: "https://www.example.com/"
2021/01/02 17:14:26 [error] 56540#56540: *248088 connect() failed (111: Connection refused) while connecting to upstream, client: 162.158.165.247, server: example.com, request: "POST /index.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:8000", host: "www.example.com", referrer: "https://www.example.com/index.php"
2021/01/02 17:15:14 [error] 56540#56540: *248098 connect() failed (111: Connection refused) while connecting to upstream, client: 162.158.134.121, server: example.com, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:8000", host: "www.example.com"
2021/01/02 17:15:43 [error] 56540#56540: *248109 connect() failed (111: Connection refused) while connecting to upstream, client: 188.114.110.89, server: example.com, request: "POST /index.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:8000", host: "www.example.com", referrer: "https://www.example.com/"
```
Nginx.conf
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
events {
worker_connections 768;
# multi_accept on;
}
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_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/*;
server_names_hash_bucket_size 128;
}
#mail {
# # See sample authentication script at:
# # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
# # 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;
# }
#}
nginx - site-available
default
##
# You should look at the following URL’s in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# Getting Started | NGINX
# Pitfalls and Common Mistakes | NGINX
# https://wiki.debian.org/Nginx/DirectoryStructure
#
# In most cases, administrators will remove this file from sites-enabled/ and
# leave it as reference inside of sites-available where it will continue to be
# updated by the nginx packaging team.
#
# This file will automatically load configuration files provided by other
# applications, such as Drupal or Wordpress. These applications will be made
# available underneath a path with that package name, such as /drupal8.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
### Default server configuration # server { listen 80 default_server; listen [::]:80 default_server; # SSL configuration # # listen 443 ssl default_server; # listen [::]:443 ssl default_server; # # Note: You should disable gzip for SSL traffic. # See: https://bugs.debian.org/773332 # # Read up on ssl_ciphers to ensure a secure configuration. # See: https://bugs.debian.org/765782 # # Self signed certs generated by the ssl-cert package # Don't use them in a production server! # # include snippets/snakeoil.conf; root /var/www/html; # Add index.php to the list if you are using PHP index index.html index.htm index.nginx-debian.html; server_name _; location / { # First attempt to serve request as file, then # as directory, then fall back to displaying a 404. try_files $uri $uri/ =404; } # pass PHP scripts to FastCGI server # #location ~ \.php$ { # include snippets/fastcgi-php.conf; # # # With php-fpm (or other unix sockets): # fastcgi_pass unix:/run/php/php7.3-fpm.sock; # # With php-cgi (or other tcp sockets): # fastcgi_pass 127.0.0.1:9000; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # Virtual Host configuration for example.com # # You can move that to a different file under sites-available/ and symlink that # to sites-enabled/ to enable it. # #server { # listen 80; # listen [::]:80; # # server_name example.com; # # root /var/www/example.com; # index index.html; # # location / { # try_files $uri $uri/ =404; # } #}
nginx - site-available
mydomailname.com.conf
server {
server_name mydomailname.com www.mydomailname.com;
listen 2xx.1xx.x.xx;
root /home/mydomailname/public_html;
index index.html index.htm index.php;
access_log /var/log/virtualmin/mydomailname.com_access_log;
error_log /var/log/virtualmin/mydomailname.com_error_log;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param SCRIPT_FILENAME /home/mydomailname/public_html$fastcgi_script_name;
fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT /home/mydomailname/public_html;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param HTTPS $https;
fastcgi_keep_conn on;
location ~ .php(/|$) {
try_files $uri $fastcgi_script_name =404;
fastcgi_pass localhost:8000;
}
fastcgi_split_path_info ^(.+.php)(/.+)$;
listen 2xx.1xx.xx.xx:443 default ssl;
ssl_certificate /home/mydomailname/ssl.cert;
ssl_certificate_key /home/mydomailname/ssl.key;
}