RDNS is not redirecting to jitsi
I have created a jitsi linode server. after creating I have updated the rdns with my domain but I was unable to load jitsi in the domain url.
rDNS is only what shows up when someone does a PTR lookup against the IP address. That does nothing for configuring DNS that would allow someone to go to jitsi.domain.com and reach your server. You'll need to create A/AAAA records appropriately wherever DNS is configured for your domain. Alternatively, you could use Linode's DNS service to provide DNS resolution for your domain.