Linux SRV-16 6.18.44-paas #1 SMP PREEMPT_DYNAMIC Thu Aug 13 10:08:12 UTC 2026 x86_64

//usr/share/X11/xkb/symbols/terminate

 default  partial modifier_keys
xkb_symbols "ctrl_alt_bksp" {
    key <BKSP> {
        type="CTRL+ALT",
        symbols[Group1] = [ NoSymbol, NoSymbol, NoSymbol, NoSymbol, Terminate_Server ]
    };
};