Hi Vincent, thanks again for all your help.
Vincent Lefevre <vinc...@vinc17.net> writes: > On 2013-04-24 23:38:06 +0200, Andreas Leha wrote: >> Vincent Lefevre <vinc...@vinc17.net> writes: >> > On 2013-04-24 05:03:53 +0200, Andreas Leha wrote: >> >> Vincent Lefevre <vinc...@vinc17.net> writes: >> >> >> BTW, does "ssh -t localhost" work on both machines? >> >> >> >> I am not sure. On the 'client' it does. On the 'server' I get this: >> >> ,---- >> >> | > ssh root@192.168.2.109 bash >> >> | ssh -t localhost >> >> | Pseudo-terminal will not be allocated because stdin is not a terminal. >> >> | Host key verification failed. >> >> `---- >> > >> > That's normal if you don't have a tty in the first place. >> > Don't you have some kind of console? >> >> I am not sure I understand that question. > > Is there some kind of terminal access without needing ssh or telnet? No, unfortunately not. Only via network. > >> > $ ssh -t root@192.168.2.109 ls -l /dev/pts >> >> Here, I get >> ,---- >> | total 0 >> | crw--w---- 1 root tty 136, 0 Apr 24 21:19 0 >> | c--------- 1 root root 5, 2 Jan 1 1970 ptmx >> | Connection to 192.168.2.109 closed. >> `---- > > One can see that pts/0 has been created and used. > >> > You can also try whether telnet over SSH works... Or just simple >> > telnet if the local network is secure. If this works, you can try >> > again "ssh -t localhost" (or just "ssh localhost", since -t is >> > implied without a command) from there. >> >> I get the same problem using telnet: >> ,---- >> | > telnet 192.168.2.109 >> | Trying 192.168.2.109... >> | Connected to 192.168.2.109. >> | Escape character is '^]'. >> | Debian GNU/Linux 6.0 >> | debian login: andreas >> | Password: >> | Last login: Wed Apr 24 21:35:35 UTC 2013 from 192.168.2.101 on pts/0 > ^^^^^^^^ >> | Linux debian 2.6.32-5-kirkwood #1 Sun May 6 16:57:51 UTC 2012 armv5tel >> | >> | The programs included with the Debian GNU/Linux system are free software; >> | the exact distribution terms for each program are described in the >> | individual files in /usr/share/doc/*/copyright. >> | >> | Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent >> | permitted by applicable law. >> | Connection closed by foreign host. >> `---- > > So, it seems that pts/0 has correctly been allocated. > > But in both cases (ssh and telnet), there's a problem. Since it > happens also with telnet, I doubt there's any problem with sshd. > Perhaps a bug related to the (pseudo-)ttys. > > Look at /var/log/messages on the remote machine to see if there is > any error message. Just in case... I have no file '/var/log/messages'.... > > You can also search Google for "Connection closed by foreign host". > According to > > http://www.geexbox.org/forum/topic/telnet-connection-closed-by-foreign-host/ > > there was a recent bug affecting Raspberry Pi (ARM). Your machine is > also ARM-based. It might be related... > Thanks for that pointer. I got the corresponding commit: ,---- | hangeset f7753f053449 in /var/www/hg/openbricks | author: warped-rudi <r.i...@s-t.de> | details: http://hg.openbricks.org/openbricks?cmd=changeset;node=f7753f053449 | description: | [RPi] kernel: enable telnetd | diffstat: | | config/platforms/arm/bcm2708/linux.conf | 3 ++- | 1 files changed, 2 insertions(+), 1 deletions(-) | | diffs (13 lines): | | diff -r 0329ffe73d78 -r f7753f053449 config/platforms/arm/bcm2708/linux.conf | --- a/config/platforms/arm/bcm2708/linux.conf Tue Feb 05 23:36:10 2013 +0100 | +++ b/config/platforms/arm/bcm2708/linux.conf Wed Feb 06 19:58:17 2013 +0100 | @@ -1483,7 +1483,8 @@ | CONFIG_VT_HW_CONSOLE_BINDING=y | CONFIG_UNIX98_PTYS=y | # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set | -# CONFIG_LEGACY_PTYS is not set | +CONFIG_LEGACY_PTYS=y | +CONFIG_LEGACY_PTY_COUNT=16 | # CONFIG_SERIAL_NONSTANDARD is not set | # CONFIG_N_GSM is not set | # CONFIG_TRACE_SINK is not set `---- I did the same (which took a while as I have no prior experience in cross compiling). Now the newly compiled kernel booted ok, but things did not change :-( ,---- | > ssh root@192.168.2.109 | Linux debian 3.2.41-dockstar #1 Sun Apr 28 15:16:21 CEST 2013 armv5tel | | The programs included with the Debian GNU/Linux system are free software; | the exact distribution terms for each program are described in the | individual files in /usr/share/doc/*/copyright. | | Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent | permitted by applicable law. | Last login: Sun Apr 28 19:26:38 2013 from 192.168.2.101 | Connection to 192.168.2.109 closed. `---- Well, at least I learned sth about cross compiling. Regards, Andreas PS: I'd still be grateful for more pointers.... -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/874neqwieg....@med.uni-goettingen.de
