I will try to explain again. This is not an urgent problem, but it is highly irritating.
I have an older PC running Debian Stable (Woody, 2.2.20). My new PC is running Debian Unstable (Sid, 2.4.18-bf2.4). I am using the latter for development, and my wife uses it for her e-mail, e-bay, etc. Both machines are connected through a Linksys router/firewall to DSL, and the Linksys is in its default mode which lets nothing through (except returning packets, etc), doesn't answer pings, etc. I would like for these two Linux systems to completely trust each other so I can run remote X (XDMCP), using the KDE3 service on the faster, more up-to-date PC, for my window manager on the older PC. You cannot do this through ssh as far as I can tell, and it would create quite a bit of overhead even if you could. I have gotten ssh, rsh, rlogin, ftp to work, but not remote X. I have tried all of the ideas given in this thread. I went carefully through the HOWTO on XDMCP and made all the changes given there on both hosts. But I still get the message "Error: Can't open display: woody:0.0" after I do the xhost + on Woody, do a rsh to Sid, and try xclock -display woody:0.0 . I just noticed I can do telnet from Sid to Woody, but not to Sid from Sid, nor to Sid from Woody. Both have the same lines in /etc/inetd.conf about telnet, and both have 'LISTEN' in the 'netstat -l | grep telnet' output. I made sure that ipchains is in the ACCEPT mode by doing ipchains -F on Woody. I can't find the firewall on Sid - maybe that is the problem. I probably will post this in another debian group, but I think it is a security setting that causing the problem. Thanks for any ideas. Boyd KO4WK Zech 4:6
