I have a created file serving tool using http. it was working without any issue. I did recently upgraded to httpd services. post that not able view/open any files.
my http.conf
ServerRoot "/etc/httpd"
Include conf.modules.d/*.conf 
User apache
Group apache
<VirtualHost *:443>
SSLEngine on
SSLProtocol -ALL -SSLv3 +TLSv1.2 
SSLCipherSuite      ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256
SSLHonorCipherOrder on
SSLCompression      off
SSLSessionTickets   off
SSLCertificateFile /etc/pki/tls/certs/tool.crt
SSLCertificateKeyFile /etc/pki/tls/private/tool.key
SSLCertificateChainFile /etc/pki/tls/certs/tool.crt
Servername 10.x.x.x
</VirtualHost>
ServerAdmin root@localhost
DocumentRoot "/opt"
<Directory "/opt">
 AllowOverride None
 Require all granted
</Directory>
<Directory "/opt/tool">
Options Indexes FollowSymLinks
    Require all granted
</Directory>
<IfModule dir_module>
    DirectoryIndex index.html
</IfModule>
ErrorLog "logs/error_log"
LogLevel warn
<IfModule log_config_module>   
    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common
    <IfModule logio_module>
      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
    </IfModule>
    CustomLog "logs/access_log" combined
</IfModule>
<IfModule alias_module>
    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
</IfModule>
<Directory "/var/www/cgi-bin">
    AllowOverride None
    Options None
    Require all granted
</Directory>
<IfModule mime_module>
    TypesConfig /etc/mime.types
    AddType application/x-compress .Z
    AddType application/x-gzip .gz .tgz
    AddType text/html .shtml
    AddOutputFilter INCLUDES .shtml
</IfModule>
AddDefaultCharset UTF-8
<IfModule mime_magic_module>
        MIMEMagicFile conf/magic
</IfModule>
EnableSendfile on
IncludeOptional conf.d/*.confmy error:
[Mon Apr 25 22:42:04.696565 2022] [mime_magic:error] [pid 16538] (13)Permission denied: [client 10.x.x.x:53639] AH01513: mod_mime_magic: read failed: /opt/Backup/2022/Apr/25/device.config not sure, how to fix this issue.
my finding,
1.when give permission 751 to files, i am able to see but unable to open it getting some error.
error
Forbidden
You don't have permission to access /tool/2022/Apr/25/device.config on this server.2.when i create files extension with .txt able to see but able to open not able to see any content. getting below
<!DOCTYPE HTML PUBLIC "-//IETF//DTD am not from dev background. need some help here.
