Set the hostname to the first enclosing tmux when ssh-ing to a server. This snippet has to be put into the .bashrc *of the server*

tmux: settitle

# On the Server

## In .bashrc (or .zshrc)
```
settitle() {
    printf "\033k$1\033\\"
}
settitle "`hostname`"
```

## If you need to run tmux on your server:
```
bash_prompt_command() {
    settitle "$0"
}

if [ -z "${TMUX:+x}" ]; then
    settitle "`hostname`"
else
    PROMPT_COMMAND=bash_prompt_command
fi
```

## If you are using zsh, replace PROMPT_COMMAND by:

precmd_functions=(bash_prompt_command)

# In your local .bashrc
```
settitle() {
    printf "\033k$1\033\\"
    }

bash_prompt_command() {
    settitle "$0"
}

PROMPT_COMMAND=bash_prompt_command
# or, for zsh
precmd_functions=(bash_prompt_command)
```