I configured my mainWP server on a Centos8 VPS + NGINX. This is the output and server info
### Server Info Required Detected Status ###
MainWP Dashboard
MainWP Dashboard Version Warning: An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the support forums. (WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.) in /var/www/wpadmin.com/html/wp-admin/includes/plugin-install.php on line 1834.1.7 Warning: An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the support forums. (WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.) in /var/www/wpadmin.com/html/wp-admin/includes/plugin-install.php on line 183
Warning
MainWP Upload Directory Writable Writable Pass
MainWP Extensions
No installed extensions
WordPress
WordPress Version >=3.6 5.8 Pass
WordPress Memory Limit >=64M 40M Warning
MultiSite Disabled =true true Pass
FileSystem Method = direct direct Pass
PHP
PHP Version >=5.6 7.4.23 Pass
PHP Safe Mode Disabled =true true Pass
PHP Max Execution Time >=30 seconds 30 Pass
PHP Max Input Time >=30 seconds 60 Pass
PHP Memory Limit >=128M 516M Pass
PCRE Backtracking Limit >=10000 1000000 Pass
PHP Upload Max Filesize >=2M 64M Pass
PHP Post Max Size >=2M 8M Pass
SSL Extension Enabled =true true Pass
SSL Warnings = empty Pass
cURL Extension Enabled =true true Pass
cURL Timeout >=300 seconds 350 Pass
cURL Version >=7.18.1 7.61.1 Pass
cURL SSL Version >=OpenSSL/0.9.8l OpenSSL/1.1.1g Pass
PHP Allow URL fopen YES
PHP Exif Support YES ( V7.4.)
PHP IPTC Support YES
PHP XML Support YES
PHP Disabled Functions No functions disabled.
PHP Loaded Extensions Core, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bz2, calendar, cgi-fcgi, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, json, libxml, mbstring, mysqli, mysqlnd, openssl, pcre, pdo_mysql, pdo_sqlite, session, sockets, sodium, sqlite3, standard, tokenizer, xml, xmlreader, xmlwriter, xsl, zlib
MySQL
MySQL Version >=5.0 8.0.21 Pass
MySQL Mode NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
MySQL Client Encoding utf8
Server Info
Server Software nginx/1.14.1
Operating System Linux
Architecture 64 bit
Server Protocol HTTP/1.1
HTTPS OFF
Server self connect The HTTP response test get an error "cURL error 7: "Not expected HTTP response body:
User Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36
Gateway Interface CGI/1.1
Memory Usage 3.83 MB
Request Time 1630418963
Accept Content text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Charset Content N/A
MainWP Settings
Number Of Child Sites 0
Use WP-Cron No
Optimize for Shared Hosting or Big NetworksNo
Automatic Daily Update Install trusted updates
Abandoned Plugins/Themes Tolerance
Maximum number of posts to return
Maximum number of pages to return
Primary Backup System Default MainWP Backups
Maximum simultaneous requests 4
Minimum delay between requests 200
Maximum simultaneous requests per ip1
Minimum delay between requests to the same ip1000
Maximum simultaneous sync requests
Minimum simultaneous install/update requests
Active Plugins
Akismet Anti-Spam 4.1.10 Inactive
Hello Dolly 1.7.2 Inactive
MainWP Dashboard 4.1.7 Active