NGINX problems after uninstalling apache (duplicate server) - apache

Question

I tried to install NGINX on my Debian server. Before switching to NGINX I used Apache2.4 and uninstalled it before installing NGINX.
My problem now is: I can't get it to work, the error is the following: "[emerg] a duplicate default server for 0.0.0.0:80 in /etc/nginx/sites-enabled/justarandomname.conf:4"
And yes, there are many posts about this problem, but none of them fixed it for me.
Additional information:
I uninstalled Apache properly (I think) and shut it down before uninstalling. Dpkg is not detecting any apache leftovers. I deleted the apache folder.
In my sites-enabled is only "justarandomname" and "justarandomname.conf" I deleted "default" (no other hidden files in there)
NGINX had some problem while installing, but after doing it manually it worked.
"justarandomname" looks like this:
server {
server_name mydomain.abc www.mydomain.abc;
listen 80 default_server;
listen [::]:80 default_server;
root /var/www/html;
}
and my "justarandomname.conf" looks like this:
server {
server_name mydomain.abc www.mydomain.abc;
listen 80 default_server;
listen [::]:80 default_server;
root /var/www/html;
}
My nginx.conf:
user www-data;
worker_processes 4;
pid /run/nginx.pid;
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_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 app$
##
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
#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;
# }
#}
EDIT: Of course I restarted the server multiple times

Answer 1

In your nginx.conf, you include all files under /etc/nginx/sites-enabled/ by
include /etc/nginx/sites-enabled/*
and in your justarandomname and justarandomname.conf file, you both have the same line
listen 80 default_server
That is what causing you problem. see here
The default_server parameter, if present, will cause the server to become the default server for the specified address:port pair.
You can either delete the justarandomname or change that line in nginx.conf to
include /etc/nginx/sites-enabled/*.conf