I try this conf with
server {
listen %ip%:%web_ssl_port% ssl;
listen %ip%:%web_ssl_port% quic;
server_name %domain_idn% %alias_idn%;
root %sdocroot%;
index index.php index.html index.htm;
access_log /var/log/nginx/domains/%domain%.log combined;
access_log /var/log/nginx/domains/%domain%.bytes bytes;
error_log /var/log/nginx/domains/%domain%.error.log error;
ssl_certificate %ssl_pem%;
ssl_certificate_key %ssl_key%;
ssl_stapling on;
ssl_stapling_verify on;
http3 on;
quic_retry on;
quic_gso on;
add_header Alt-Svc 'h3=":$server_port"; ma=86400';
add_header X-protocol $server_protocol always;
…
I think something is missing from the Hestia conf
P.S.
sudo add-apt-repository ppa:5-sergey/nginx-quic
sudo apt update
sudo cp -r /etc/nginx /etc/nginx_bak
sudo apt purge nginx -y
nano /etc/apt/sources.list.d/nginx.list
#deb [arch=arm64 signed-by=/usr/share/keyrings/nginx-keyring.gpg] Index of /packages/mainline/ubuntu/ jammy nginx
ecc…