if port 8888 is used for jvb health checking, is it mandatory to have this port open to any requests ?
I’m using jitsi-videobridge2 ( 2.1-202-g5f9377b9-1 ) and I notice this message once in the log
kernel: [5758258.813974] TCP: request_sock_TCP: Possible SYN flooding on port 8888. Sending cookies. Check SNMP counters
I ran tcpdump and saw what I assume were unsollicited requests. So:
- if this port is only used by internal applications, does jvb need to listen on the internet ?
- if not, can I apply a rate-limiter ?