can we issue letsencrypt for main hostname ??

The only thing that can mess up virtual.conf main host is if you install phpmyadmin.sh addon. Otherwise, you can manually setup main hostname outlined in Getting Started Guide step 1 with HTTPS using vhost generator at Generate Centmin Mod Nginx Vhost - CentminMod.com LEMP Nginx web stack for CentOS

type on domain fieldin main host name domain which has to have valid DNS A record pointing to server ip i.e. host.domain.com and check box that says Generate Self-Signed SSL / Letsencrypt SSL HTTPS Vhost (File ONLY) *

Vhost type = basic and hit submit

follow first 3 acme.sh commands only to get letsencrypt ssl cert but edit web root from
/home/nginx/domains/host.domain.com/public to point to /usr/local/nginx/html and remove www. domain from -d

enable letsencrypt in 123.09beta01 - 3 commands

Code (Text):

touch /etc/centminmod/custom_config.inc
echo "LETSENCRYPT_DETECT='y'" >> /etc/centminmod/custom_config.inc
/usr/local/src/centminmod/addons/acmetool.sh acmeupdate

get letsencrypt ssl cert - 1 line cmd - webroot defined by -w /usr/local/nginx/html

Code (Text):

/root/.acme.sh/acme.sh --force --issue --days 60 -d host.domain.com -w /usr/local/nginx/html -k 2048 --useragent centminmod-centos-acmesh-webroot --log /root/centminlogs/acmetool.sh-debug-log-host.domain.com.log --log-level 2

install letsencrypt ssl cert - 2 line cmds

Code (Text):

mkdir -p /usr/local/nginx/conf/ssl/host.domain.com
/root/.acme.sh/acme.sh --installcert -d host.domain.com --certpath /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-acme.cer --keypath /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-acme.key --capath /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-acme.cer --reloadCmd /usr/bin/ngxreload --fullchainpath /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-fullchain-acme.key

then make a copy of /usr/local/nginx/conf/conf.d/virtual.conf as /usr/local/nginx/conf/conf.d/virtual.ssl.conf

Code (Text):

cp -a /usr/local/nginx/conf/conf.d/virtual.conf /usr/local/nginx/conf/conf.d/virtual.ssl.conf

now edit within /usr/local/nginx/conf/conf.d/virtual.ssl.conf with ssl cert lines so looks like

Code (Text):

server {
  listen 443 ssl http2;
  server_name host.domain.com;

  ssl_certificate      /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-acme.cer;
  ssl_certificate_key  /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-acme.key;
  include /usr/local/nginx/conf/ssl_include.conf;

  http2_max_field_size 16k;
  http2_max_header_size 32k;
  http2_max_requests 5000;
  # dual cert supported ssl ciphers
  ssl_ciphers TLS13-AES-128-GCM-SHA256:TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS;
  ssl_prefer_server_ciphers   on;
  #add_header Alternate-Protocol  443:npn-spdy/3;
  #add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";
  #add_header X-Frame-Options SAMEORIGIN;
  #add_header X-Xss-Protection "1; mode=block" always;
  #add_header X-Content-Type-Options "nosniff" always;
  #spdy_headers_comp 5;
  ssl_buffer_size 1369;
  ssl_session_tickets on;

  # enable ocsp stapling
  resolver 8.8.8.8 8.8.4.4 valid=10m;
  resolver_timeout 10s;
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /usr/local/nginx/conf/ssl/host.domain.com/host.domain.com-acme.cer;

        root   html;
        access_log              /var/log/nginx/localhost.access.log     combined buffer=8k flush=1m;
        error_log               /var/log/nginx/localhost.error.log      error;

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

# limit_conn limit_per_ip 16;
# ssi  on;

        location /nginx_status {
        stub_status on;
        access_log   off;
        allow 127.0.0.1;
        #allow youripaddress;
        deny all;
        }

            location / {

# block common exploits, sql injections etc
#include /usr/local/nginx/conf/block.conf;

#Enables directory listings when index file not found
#autoindex  on;
    
            }

include /usr/local/nginx/conf/staticfiles.conf;
include /usr/local/nginx/conf/include_opcache.conf;
include /usr/local/nginx/conf/php.conf;
#include /usr/local/nginx/conf/phpstatus.conf;
include /usr/local/nginx/conf/drop.conf;
#include /usr/local/nginx/conf/errorpage.conf;
#include /usr/local/nginx/conf/vts_mainserver.conf;

       }

restart nginx

Code (Text):

ngxrestart

now you should be able to access both https and non-https hostname and then if all is working do a non-https to https 302 temp redirect



If you do have phpmyadmin.sh installed phpmyadmin, you can probably try this to fix the conflict via these steps.

1. Get the contents of /usr/local/nginx/conf/phpmyadmin_https.conf and place it in your above created
/usr/local/nginx/conf/conf.d/virtual.ssl.conf main hostname HTTPS nginx vhost within server{} context

2. Backup locally copy of phpmyadmin.sh auto generated self-signed SSL cert HTTPS vhost at /usr/local/nginx/conf/conf.d/phpmyadmin_ssl.conf

3. Then take the below following values contained within /usr/local/nginx/conf/conf.d/phpmyadmin_ssl.conf and transpose them into your above created
/usr/local/nginx/conf/conf.d/virtual.ssl.conf main hostname HTTPS nginx vhost within server{} context

Code (Text):

keepalive_timeout 3000;
client_body_buffer_size 256k;
client_body_timeout 3000s;
client_header_buffer_size 256k;
## how long a connection has to complete sending
## it's headers for request to be processed
client_header_timeout 60s;
client_max_body_size 512m;
connection_pool_size 512;
directio 512m;
ignore_invalid_headers on;
large_client_header_buffers 8 256k;

4. Then remove /usr/local/nginx/conf/conf.d/phpmyadmin_ssl.conf

5. Test Nginx config & Restart Nginx & PHP-FPM

Code (Text):

nginx -t
nprestart