A workaround for the issue is filtering out TCP port 8008 and 8009 with netfilter locally: -A INPUT -p tcp -m tcp --sport 8009 -j REJECT --reject-with icmp-port-unreachable -A INPUT -p tcp -m tcp --dport 8009 -j REJECT --reject-with icmp-port-unreachable -A INPUT -p tcp -m tcp --sport 8008 -j REJECT --reject-with icmp-port-unreachable -A INPUT -p tcp -m tcp --dport 8008 -j REJECT --reject-with icmp-port-unreachable