[Bug 920749]
Alessandro-demaria-e
920749 at bugs.launchpad.net
Fri Oct 18 16:07:47 UTC 2013
Hello,
is there a workaround for this issue?
I want to be able to send some VAR* variables but it seems impossible at the moment.
I have tried many different configurations.
Is there any PAM conf change I can do to disable this behaviour and
allow me to inject variables?
Regards
Alessandro
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https://bugs.launchpad.net/bugs/920749
Title:
pam configuration for SSH prevents LANG override
Status in Portable OpenSSH:
Confirmed
Status in “openssh” package in Ubuntu:
Triaged
Status in “openssh” package in Debian:
Confirmed
Bug description:
The default /etc/pam.d/sshd configuration has:
# Read environment variables from /etc/environment and
# /etc/security/pam_env.conf.
#auth required pam_env.so # [1]
# In Debian 4.0 (etch), locale-related environment variables were moved to
# /etc/default/locale, so read that as well.
auth required pam_env.so envfile=/etc/default/locale
The default SSH client configuration has "Send LC_*" and the default
SSH server configuration has "Accept LC_*". The PAM configuration
prevents any user-overrides for locale settings.
For example, if /etc/default/locale has:
LANG=en_US.UTF-8
LC_COLLATE=C
Then running "LANG=zh_SG.utf8 LC_COLLATE=en_US.UTF-8 ssh myspecialhost.foo.bar.com" yields:
ubuntu at ip-10-12-15-243:~$ locale
LANG=en_US.UTF-8
LC_COLLATE=C
(output truncated for clarity)
While having a blank /etc/default/locale yeilds:
ubuntu at ip-10-12-15-243:~$ locale
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=zh_SG.utf8
LC_COLLATE=en_US.UTF-8
(output truncated for clarity)
I think, although I am not sure, that this is a bug with the default
configuration. It means that in order for server to accept multple
languages or LC_* bindings, the system locale default would have to be
unset. Effectively this is forcing the system default on all users.
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