I installed Shorewall on my cluster per the instructions for two- interface setup. However, now I can't ssh from the master node to any other node -- it simply says "ssh: connect to host node2 port 22: No route to host." (same for all other nodes). Additionally, I can't SSH into the cluster anymore from my remote clients.
I thought that the tutorial said SSH would be enabled? When I shut off Shorewall, I still can't ssh between nodes, but I am able to ssh into the cluster from my remote clients. Even when I do a "shorewall clear" I still cannot get to my other nodes. I imagine this is a simple fix, but I don't know how based on the tutorial and my lack of IP vocabulary. A little info on my system: -1 master node, 15 slave nodes -Master node has two network cards: eth0 is attached to the local network, eth1 is attached to the outside network (I made sure to change the default files to account for this since the tutorial assumes eth0 is the external interface) -I'm configuring it remotely by ssh-ing into the master node as the root user, but the cluster does have a direct interface I can use if necessary (I'm just not sitting at it right now). -I'm running Ubuntu 8.04 Server -I installed Shorewall 4.0.6 from the Ubuntu repositories -All of my configuration files are essentially the default (as in the tutorial) except for the eth1 / eth0 switch. Sorry, this is a real rookie problem, but I don't know what's going on. Thanks guys. --------------------------------------------- Christopher Tanner Space Systems Design Laboratory Georgia Institute of Technology [email protected] ---------------------------------------------- ------------------------------------------------------------------------------ _______________________________________________ Shorewall-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/shorewall-users
