fixed server ports
vombi Nov 7, 2002 11:48 AMI have Tomcat on 192.168.2.1 and JBoss on 192.168.3.2.
A Servlet on Tomcat requests a simple Session bean.
My concern is that there shall be a firewall between the two hosts with a fixed number of ports open. From the doc and dump I see that ports 1099 and 4444 are necessary for RMI and naming. But the ejb instance seems to listen on a "random" port (this case 32874, but will be different next time) Is there a way to fix this port, preferrable to one Port for all instances as it is possible with UnicastRemoteObject?
Thanks in advance!
tcpdump: listening on fxp0
192.168.2.1.34415 > 192.168.3.2.4444: F 2692529456:2692529456(0) ack 1982095151 win 8760 (DF)
192.168.3.2.4444 > 192.168.2.1.34415: . ack 1 win 24820 (DF)
192.168.3.2.4444 > 192.168.2.1.34415: F 1:1(0) ack 1 win 24820 (DF)
192.168.2.1.34415 > 192.168.3.2.4444: . ack 2 win 8760 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: S 2697818702:2697818702(0) win 8760 <mss 1460> (DF)
192.168.3.2.4444 > 192.168.2.1.34416: S 1992128595:1992128595(0) ack 2697818703 win 24820 <mss 1460> (DF)
192.168.2.1.34416 > 192.168.3.2.4444: . ack 1 win 8760 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: P 1:8(7) ack 1 win 8760 (DF)
192.168.3.2.4444 > 192.168.2.1.34416: . ack 8 win 24820 (DF)
192.168.3.2.4444 > 192.168.2.1.34416: P 1:19(18) ack 8 win 24820 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: . ack 19 win 8760 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: P 8:29(21) ack 19 win 8760 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: P 29:317(288) ack 19 win 8760 (DF)
192.168.3.2.4444 > 192.168.2.1.34416: . ack 317 win 24820 (DF)
192.168.3.2.4444 > 192.168.2.1.34416: P 19:370(351) ack 317 win 24820 (DF)
192.168.3.2.4444 > 192.168.2.1.34416: F 370:370(0) ack 317 win 24820 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: . ack 371 win 8760 (DF)
192.168.2.1.34416 > 192.168.3.2.4444: F 317:317(0) ack 371 win 8760 (DF)
192.168.3.2.4444 > 192.168.2.1.34416: . ack 318 win 24820 (DF)
192.168.2.1.34425 > 192.168.3.2.1099: S 2713342981:2713342981(0) win 8760 <mss 1460> (DF)
192.168.3.2.1099 > 192.168.2.1.34425: S 2021595371:2021595371(0) ack 2713342982 win 24820 <mss 1460> (DF)
192.168.2.1.34425 > 192.168.3.2.1099: . ack 1 win 8760 (DF)
192.168.3.2.1099 > 192.168.2.1.34425: P 1:5(4) ack 1 win 24820 (DF)
192.168.2.1.34425 > 192.168.3.2.1099: . ack 5 win 8760 (DF)
192.168.3.2.1099 > 192.168.2.1.34425: P 5:84(79) ack 1 win 24820 (DF)
192.168.2.1.34425 > 192.168.3.2.1099: . ack 84 win 8760 (DF)
192.168.3.2.1099 > 192.168.2.1.34425: FP 84:355(271) ack 1 win 24820 (DF)
192.168.2.1.34425 > 192.168.3.2.1099: . ack 356 win 8760 (DF)
192.168.2.1.34426 > 192.168.3.2.32874: S 2713633877:2713633877(0) win 8760 <mss 1460> (DF)
--------------------+++++++++++++++++
192.168.3.2.32874 > 192.168.2.1.34426: S 2022170249:2022170249(0) ack 2713633878 win 24820 <mss 1460> (DF)
192.168.2.1.34426 > 192.168.3.2.32874: . ack 1 win 8760 (DF)
192.168.2.1.34426 > 192.168.3.2.32874: P 1:8(7) ack 1 win 8760 (DF)
192.168.3.2.32874 > 192.168.2.1.34426: . ack 8 win 24820 (DF)