Hi, I have two remote actor systems deployed on two different cloud platforms, one deployed on Google (port 80) and the other one on AWS (port 2552). I am managing AWS machine only, Google machine is being managed by client. I am instantiating connection from AWS actor to Google actor, sending a message and receiving results back. I want to block all unnecessary ports, so i added two rules to firewall 1. Allowed outbound connection to port 80 (to connect to remote actor) 2. Allowed incoming connection to port 2552 (to receive data back from remote actor)
Blocked all other ports, as soon as i block other ports, application stops connecting with remote actor. I have verified that actor system is listening at port 2552 ( [akka.tcp://Client@amd-machine:2552] ). It turns out that connection is using some dynamic ports for AWS deployed actor, here are the logs of traffic captured using tcpdump command: 16:05:46.811270 IP 10.0.2.15.56756 > 102.150.24.190.80: Flags [S], seq 1968780725, win 29200, options [mss 1460,sackOK,TS val 6205965 ecr 0,nop,wscale 7], length 0 16:05:46.849800 IP 102.150.24.190.80 > 10.0.2.15.56756: Flags [S.], seq 2602112001, ack 1968780726, win 65535, options [mss 1460], length 0 16:05:46.849841 IP 10.0.2.15.56756 > 102.150.24.190.80: Flags [.], ack 1, win 29200, length 0 16:05:46.850027 IP 10.0.2.15.56756 > 102.150.24.190.80: Flags [F.], seq 1, ack 1, win 29200, length 0 16:05:46.850164 IP 102.150.24.190.80 > 10.0.2.15.56756: Flags [.], ack 2, win 65535, length 0 where 102.150.24.190.80 is Google actor address 10.0.2.15.56756 is AWS actor address as can be seen from above logs, that actor system is picking some dynamic port for remote communication. Could anybody please help me understand why dynamic port is being used when actor system is listening at port 2552, and how can i make sure dynamic port is not used? Regards Abud -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
