Wtmp log - unable to see who was/is logged in

I would like to see who and when logged in to my turris omnia, wtmp seems to be disabled and there seems to be no last and w command, how to enable wtmp log and which packages contains mentioned commands?

ok, I found a way via:

cat /var/log/messages.1 | grep “Accepted publickey for”

but I still don’t understand what makes wtmp and last command tick on OpenWRT…

From some conversation on dev.openwrt …

By default applications like openssh and dropbear are configured with the following flags:
--disable-lastlog --disable-utmp --disable-wtmp

so that’s possibly why utmp,btmp,wtmp are not present or zero size.

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