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I couldn't find that anywhere so I'm wondering am I the only one hitting such issue.

By default ssh on Red Hat and Debian at least has a ssh_config with SendEnv option passing LC* and LANG variables in the remote session. If one is not root to change /etc/ssh/ssh_config, how can he disable that behavior? SendEnv option seems to be accumulating and I can't see any way to reset it.

And to avoid being asked, I need to avoid passing my locale to test machines to avoid side effects on scripts and programs that rely on locale being the default for the machine.

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This is not an answer to your question, but can you solve your problem by invoking the scripts and programs on your test machines through env or with a wrapper script? – Scott Oct 9 '12 at 20:57
yeah, workarounds are possible but inconvenient – akostadinov Oct 10 '12 at 7:34
up vote 11 down vote accepted

You're not the only one. As documented in ssh_config(5) you can't unset SendEnv, because

Multiple environment variables may be [...] spread across multiple SendEnv directives.

If you have root on the test machines you could change AcceptEnv to not accept variables sent by the client, though.

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crap, I see only -F on command line can help but it's too inconvenient to really use. See – akostadinov Oct 10 '12 at 7:30

This can't be done in ~/.ssh/config because SendEnv cannot be overridden.

Using aliases won't work for scripts that call ssh.

One alternative is to export a function. E.g. in ~/.bashrc:

function ssh() {
    LANG="en_US.UTF-8" \
    LC_NAME="$LANG" \
    LC_PAPER="$LANG" \
    LC_TIME="$LANG" \
    LC_ALL="$LANG" \
    /usr/bin/ssh $@
export -f ssh
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If you are using bash you may set up an alias ssh='LANG= command ssh' to disable LANG passing to the other servers.

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You can use su - youruser when you are logged in over ssh. This will reinitialize the environment for the user.

Actually you initialize a new session with a new environment.

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Question is to have environment sane automatically. And btw su is not always installed. And you have to type in your password with su. Not useful. There are easier workarounds. – akostadinov Apr 15 '15 at 8:46

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