Opening FTP:
Open ports 21 and 49152-65535 ranges:
sudo firewall-cmd --permanent --add-port=49152-65535/tcp
sudo firewall-cmd --permanent --add-port=49152-65535/udp
sudo firewall-cmd --permanent --add-port=21/tcp
sudo firewall-cmd --reload
SLL Let’s Encrypt:
Always remove:
Redirect visitors from HTTP to HTTPS via a SEO friendly 301 redirect