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Whenever I connect to production server using ssh from my terminal, is there any way to automatically change the appearance of the Ubuntu terminal with special color so that I don't execute some stupid commands thinking that I am running in my local system?

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Best way would be to reverse the prompt, so it is easily seen, that you're on a different system:

 PS1="$(tput rev)$LOGNAME@$(uname -n)>$(tput sgr0)> "
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If you're using Gnome Terminal, you can create different profiles for different purposes using File->New Profile.... Each profile can have their own terminal title, custom command, colors, background and other settings.

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