@WASTECH

A few quick things to check. Login to the CLI and:

Open /etc/php5/fpm/pool.d/www.conf

• Search for listen – are you using /var/run/php5-fpm.sock? If so, comment the line by adding a ; before it and then add listen = 127.0.0.1:9000 below it.

• Search for listen.allowed_clients – is it commented or uncommented? If uncommented, comment it out by adding a ; before it.

• Save /etc/php5/fpm/pool.d/www.conf.

Open /etc/nginx/sites-available/default or the name of the file you created for your server block:

• Search for fastcgi_pass and change /var/run/php5-fpm.sock to 127.0.0.1:9000.

• Save /etc/nginx/sites-available/default.

Now restart php-fpm and then nginx by running:

• service php-fpm restart && service nginx restart

Let me know if that fixes the connection issue. If it does, the issue is because of the lack of read/write permissions on the /var/run/php5-fpm.sock file. If you’re running from the default php-fpm configuration, the user would be www-data and since this user is not a privileged user, it’s unable to read/write to files that are owned by root. Since the sock file has to be executable by the www-data user, and it’s owned by another, you won’t be able to connect.

You can undo the changes above and revert back to using the sock file, though using TCP (which is what the above details swap you over to) works just as well. Latency is negligible unless we’re dealing with a high-traffic scenario and even then, we’d still use TCP to connect to a secondary server.

Looks like a xmlrpc attack. Look for the method in that linked document that best suites your need to mitigate the attack.

@WASTECH

Is SELinux, by chance, enabled on your Droplet? If so, this could be the cause and you’d need to run either:

/usr/sbin/setsebool httpd_can_network_connect 1

or

/usr/sbin/setsebool httpd_can_network_connect true

… from the CLI. Once you have, restart NGINX using:

service nginx restart

or

/usr/sbin/nginx -s restart

If that doesn’t work, please post the output of your log after the commands have been executed as well as the configuration located in /etc/nginx/nginx.conf and your primary server block configured for the domain.

Hi,

Im getting a similar error, but I have:

    # With php7.0-cgi alone:
    #       fastcgi_pass 127.0.0.1:9000;
    #       # With php7.0-fpm:
    #       fastcgi_pass unix:/run/php/php7.0-fpm.sock;

do I need to change unix:/run/php/php7.0-fpm.sock to 127.0.0.1:9000?

Also, /etc/php7/fpm/pool.d/www.conf is not found

Mine issue was slightly different I was reverse-proxying my subdomain wordpress blog site on my main site, and I wasn’t using PHP-fpm for handling PHP pages.
the error was:

connect() failed (111: Connection refused) while connecting to upstream, client: xxx.xxx.xxx.xxx, server: “my.site.com”, request: GET /blog HTTP/1.0", upstream: “my.blog.site”, host: “my.site.com”

the issue was in my blog server’s firewall where WordPress was blocking my site IP address.

check status of firewall #ufw status verbose
if status active next

check the iptable #iptables -S
check if list contains “f2b-wordpress-hard -s xx.main.site.ip.xx/32 -j REJECT –reject-with icmp-port-unreachable”

do #fail2ban-client set wordpress-hard unbanip xx.main.site.ip.xx

for more details visit:
https://gist.github.com/stephenscaff/a0527da89b69dab57f93c09b4287b174