On Fri, Mar 29, 2013 at 1:09 PM, zGreenfelder <zgreenfelder at gmail.com>wrote: > On Fri, Mar 29, 2013 at 12:37 PM, Pat Haley <phaley at mit.edu> wrote: > > > > Hi, > > > > Actually we're talking about both SSH and XDMCP X11 forwarding. > > Both seem to be currently disabled by the iptables. > > > > We'll try out what you suggest and get back with the results. > > Thanks. > > > > Pat > > iptables should have no effect (well. I guess if you do some really > Read the entire thread. The OP tested with firewall rules and then with fw off/flushed rules. > odd config settings it -could-, but that's a bit of an edge case) on > ssh X tunnels. check your /etc/ssh/sshd_config for > X11Forwarding > it should be set to yes. if you have iptables that apply to > localhost/127.0.0.0/8 network, then I suppose iptables could be part > of the problem. but I'd think it'd make sense to drop most all of > those rules. > > it might also be helpful to look at the output of from your external > machine when you run ssh -vvvv -X user at clusterhost (I wouldn't send it > all to the list, cuz it'll be a ton of nonsense, but the last page or > of output lines have helped me find issues in the past) > > ... or am I completely off in left field and you're saying you're > unable to ssh into your machines? > -- > Even the Magic 8 ball has an opinion on email clients: Outlook not so good. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- ---~~.~~--- Mike // SilverTip257 //