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<p>You said this is "shared hosting" - when you say "shared hosting"
do you mean this is *not* a dedicated machine but one machine out
of many in a shared environment?</p>
<p>Have you tested briefly by disabling your firewall just to see if
that fixes the issue?</p>
<p>What is the backend? You're passing everything to 8080 which
suggests the backend might be having issues too.</p>
<p><br>
</p>
<p>Thomas</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 8/13/20 3:04 PM, nathanpgibson
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:890e53d40b86b429b03b4886c31b941e.NginxMailingListEnglish@forum.nginx.org">
<pre class="moz-quote-pre" wrap="">Hi All,
Newbie question. I posted this on Stack Overflow but haven't gotten any
replies yet.
<a class="moz-txt-link-freetext" href="https://stackoverflow.com/questions/63391424/why-do-i-get-connection-timeout-on-ssl-even-though-nginx-is-listening-and-firewa">https://stackoverflow.com/questions/63391424/why-do-i-get-connection-timeout-on-ssl-even-though-nginx-is-listening-and-firewa</a>
Most/many visitors to my site <a class="moz-txt-link-freetext" href="https://example.org">https://example.org</a> get a connection timeout.
Some visitors get through, possibly ones redirected from <a class="moz-txt-link-freetext" href="http://example.org">http://example.org</a>
or those who've previously visited the site.
I'm trying to determine if this is a firewall issue or an nginx
configuration issue.
Firewall
I'm using UFW as a firewall, which has the following rules:
To Action From
-- ------ ----
SSH ALLOW Anywhere
Nginx Full ALLOW Anywhere
80/tcp ALLOW Anywhere
443/tcp ALLOW Anywhere
SSH (v6) ALLOW Anywhere (v6)
Nginx Full (v6) ALLOW Anywhere (v6)
80/tcp (v6) ALLOW Anywhere (v6)
443/tcp (v6) ALLOW Anywhere (v6)
I could give some relevant rules from iptables if anyone needs that, but I'd
need some direction on what to look for.
For sudo netstat -anop | grep LISTEN | grep ':443' I get
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN
120907/nginx: worke off (0.00/0/0)
tcp6 0 0 :::443 :::* LISTEN
120907/nginx: worke off (0.00/0/0)
Not sure what "worke off" means.
nginx
It's a virtual host with the server name myservername.com which serves up
two websites, example.org and example.com/directory. Example.org points to a
docker container running eXist-db. Example.com/directory is serving up a
directory on localhost:8080 proxied from another server where example.com
lives. Example.com/directory is running smoothly on https when I access it
in the browser -- I presume this is because it actually talks to the
example.com host over http.
Example.org and myservername.com both have certs from let's encrypt
generated by certbot.
When I try nmap from my local machine I get some results I can't explain.
Notice the discrepancy between ports 80 and ports 443 and between IPv4 and
IPv6
$ nmap -A -T4 -p443 example.org
443/tcp filtered https
$ nmap -A -T4 -p443 my.server.ip.address
443/tcp filtered https
$ nmap -A -T4 -p443 -6 my:server:ip::v6:address
443/tcp open ssl/http nginx 1.10.3
$ nmap -A -T4 -p80 example.org
80/tcp open http nginx 1.10.3
$ nmap -A -T4 -p80 my.server.ip.address
80/tcp open http nginx 1.10.3
My nginx.conf is
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
##
client_max_body_size 50M;
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/*;
}
and my nginx server blocks:
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _ myservername.com;
return 301 <a class="moz-txt-link-freetext" href="https://myservername.com$request_uri">https://myservername.com$request_uri</a>;
}
server {
# SSL configuration
#
listen 443 ssl default_server;
listen [::]:443 ssl default_server;
server_name _ myservername.com;
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_pass <a class="moz-txt-link-freetext" href="http://localhost:8080">http://localhost:8080</a>;
}
ssl_certificate
/etc/letsencrypt/live/myservername.com/fullchain.pem;
ssl_certificate_key
/etc/letsencrypt/live/myservername.com/privkey.pem;
}
server {
listen 80;
listen [::]:80;
server_name example.com <a class="moz-txt-link-abbreviated" href="http://www.example.com">www.example.com</a>;
gzip off;
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_pass <a class="moz-txt-link-freetext" href="http://localhost:8080">http://localhost:8080</a>;
}
}
server {
listen 80;
listen [::]:80;
server_name example.org <a class="moz-txt-link-abbreviated" href="http://www.example.org">www.example.org</a>;
return 301 <a class="moz-txt-link-freetext" href="https://example.org$request_uri">https://example.org$request_uri</a>;
}
server {
# SSL configuration
#
listen 443 ssl;
listen [::]:443 ssl;
server_name example.org <a class="moz-txt-link-abbreviated" href="http://www.example.org">www.example.org</a>;
gzip off;
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_pass
http://docker.container.ip.address:port/exist/apps/example/;
}
location /workshop2020/ {
return 302 <a class="moz-txt-link-freetext" href="http://example.org/forum2020/">http://example.org/forum2020/</a>;
}
location /exist/apps/example/ {
rewrite ^/exist/apps/example/(.*)$ /$1;
}
ssl_certificate /etc/letsencrypt/live/example.org/fullchain.pem; #
managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/example.org/privkey.pem; #
managed by Certbot
}
Very grateful for any help!!
Nathan
Posted at Nginx Forum: <a class="moz-txt-link-freetext" href="https://forum.nginx.org/read.php?2,289099,289099#msg-289099">https://forum.nginx.org/read.php?2,289099,289099#msg-289099</a>
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</pre>
</blockquote>
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