) will use the zerocopy TX mode, which gives a performance boost when used with KTLS hardware offload. Note that invalid TLS records might be transmitted if the file is changed while being sent. This option depends on <b>-sendfile</b>; when used alone, <b>-sendfile</b> is implied, and a warning is shown. Note that KTLS sendfile on FreeBSD always runs in the zerocopy mode.</p>

</dd>
<dt id="keylogfile-outfile"><b>-keylogfile</b> <i>outfile</i></dt>
<dd>

<p>Appends TLS secrets to the specified keylog file s