On Sun, 19 Jun 2011 09:46:08 +0200 (CEST), Julien Claassen wrote
> Hello Ken!
> Yes, it's 8888. :-) But telnet needs to open a pts/something, or
> LinuxSampler does to accept the telnet connection. I didn't know it,
> before I found, that it didn't work and I had to look deeper into
> things. I researched it some more and am still no further. My system
> at home runs perfectly and does that, this systems normally runs
> perfectly, but doesn't do it. I can't find the difference, except in
> the kernels (My home kernel is custom built)
So the problematic system's kernel is _not_ custom build?
What does:
grep -i PTY /boot/config-`uname -r`
print? (Here we're just checking the kernel's support for pseudo
terminals as well as the support for legacy pseudo terminals).
> and in the very
> specific fact, that this system runs udev. Warm regards
But that's the way devices are handled in "recent" kernels. And not
a bad way, if I might add ...
So, for debugging purposes, can you do:
ssh localhost
on the problematic system. Iff you theoy is correct, this should
not work.
Can you compile and run the following small C program (compile it with:
gcc tty-tester.c -o tty-tester -lutil )
----X file: tty-tester.c X-------------------------------------------
/* Compile with
gcc tty-tester.c -o tty-tester -lutil
*/
#include <stdio.h>
#include <pty.h>
#include <unistd.h>
#include <errno.h>
int main (int argc, char** argvs) {
int res;
int master, slave;
char termname[256];
struct termios termp;
struct winsize winp;
res = openpty(&master, &slave, termname, &termp, &winp);
if (res) {
printf("Could not open pseudo terminal\n");
perror("tty-tester");
return res;
}
printf("Got terminal at %s\n", termname);
while(1) {sleep(1);}
return(0);
}
-------X end file: tty-tester.c X---------------------------------
Just run it and see if we get some more meaningfull error message.
HTH Ralf Mattes
--
R. Mattes -
Hochschule fuer Musik Freiburg
rm@xxxxxxxxxxxxxxxxxx
b
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