Where are ssh login attempts logged to on jailbroken iPhone with OpenSSH?
I just found the answer to this

you have to manually edit /Library/LaunchDaemons/com.openssh.sshd.plist

change this part:

&lt;key&gt;ProgramArguments&lt;/key&gt;
&lt;array&gt;
    &lt;string&gt;/usr/sbin/sshd&lt;/string&gt;
    &lt;string&gt;-i&lt;/string&gt;
&lt;/array&gt;


to this:

&lt;key&gt;ProgramArguments&lt;/key&gt;
&lt;array&gt;
    &lt;string&gt;/usr/sbin/sshd&lt;/string&gt;
    &lt;string&gt;-E /var/log/auth.log -i&lt;/string&gt;
&lt;/array&gt;


then reboot or restart sshd