I am wondering if anyone could offer me some advice on telnet access to the UML console. I run linuxzoo.net, which has very poor console access for users right now (it relies on network logins direct to the guests). Im trying to fix that...
I am using something like "con1=port:5800". I have in.telnetd from a fedora install. I have port-helper. My problem is that the console connection seems unreliable in two ways. Firstly: If I connect and login, then press CTRL-D before terminating telnet, it works fine when I telnet in again. If I connect and login, but terminate telnet before CTRL-D, then when I telnet in again I get the login prompt but the keymapping seems broken. Key codes are either corrupt or the characters invisible. I cannot find any way to recover from this except a reboot of the guest. It is almost like the guest OS fails to reset the console line, or it is stuck in raw mode, or there is a process left from the last session messing the connection up... Secondly: I have an intermittent rare problem where sometimes I cannot connect after disconnecting. I get console messages "no one waiting for port". I may also be left with one in.telnetd zombie. The result is that sometimes I can never get in again. It is like the port helper thread has became 1 connection out of sync. I am using a guest based on 2.6.18. I was using 2.6.8 previously, and this has the same problem. I dont see anything in the uml changelog which would suggest a more modern kernel is a solution to this, but I could be wrong. All advice appreciated. Happy to try anything. I have been investigating this for a few months and I cannot come up with a good solution. I could drop back to fd consoles and writing my own telnetd server to access the file descriptors, but I would prefer not to reinvent the wheel. I know I could use "screen" but for security reasons I would prefer not to allow users to log into the host machines. Perhaps a different in.telnetd source would help? (any pointers to a good version)? Anyone tried in.telnetd using screen rather than login? Would more consoles associated with port:5800 help? Thanks Gordon. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
