[AG-TECH] How configure a Bridge server?

Jason Bell j.bell at cqu.edu.au
Thu Jul 22 01:22:25 CDT 2010


G'day Sangil

Can I ask how you are starting you Unicast Bridge.  As the ports specified might be different to those configured within iptables.

For example, you might noticed that some unicast bridges, as listed in Venue Client -> Tools -> Preferences -> Bridging have different port ranges.

Not sure if it helps, but I updated a security document yesterday (see http://www.accessgrid.org/node/1987) which might be of some assistance.  I have those firewall rules in place and I am able to connect to the bridge.  

The one rule I can see missing is "iptables -A INPUT -d 224.0.0.0/4 -j ACCEPT" which is required for multicast.

Hope this helps.

Cheers,
Jason.

-----Original Message-----
From: ag-tech-bounces at lists.mcs.anl.gov [mailto:ag-tech-bounces at lists.mcs.anl.gov] On Behalf Of Sangil Choi
Sent: Thursday, 22 July 2010 12:04 PM
To: ag-tech at mcs.anl.gov
Subject: [AG-TECH] How configure a Bridge server?

Hi everyone,
I've been asked to configure a bridge server.

I did installation of 'AGTk3.2 beta 1' and configure the firewall port to be used as a bridge server.
However, if I use that, client's VIC doesn't show anything. (and other computer's captured video which is connected via the service manager.)
RAT does not show sound information of the others in the same venue.

To solve the problem, I turn off the firewall. There are still problems.
I don't know how I can solve this challenge.
I look forward to getting your response.

regards,
Sangil Choi
Attached 'firewall's open ports list in bridge server'.
==========================================================
Table: filter
Chain INPUT (policy ACCEPT)
num  target     prot opt source               destination
1    ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTABLISHED
2    ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0
3    ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
4    ACCEPT     udp  --  0.0.0.0/0            224.0.0.251         state NEW udp dpt:5353
5    ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:631
6    ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:631
7    ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:22
8    ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:10000
9    ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:10002
10   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:10004
11   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:11000
12   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:20000
13   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:20200
14   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:20200
15   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpts:50000:52000
16   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpts:50000:52000
17   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpts:5900:5920
18   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:8000
19   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:8000
20   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:8002
21   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:8002
22   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW tcp dpt:8006
23   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state NEW udp dpt:8006
24   REJECT     all  --  0.0.0.0/0            0.0.0.0/0           reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT)
num  target     prot opt source               destination
1    REJECT     all  --  0.0.0.0/0            0.0.0.0/0           reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT)
num  target     prot opt source               destination

==========================================================



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