diff --git a/blog/_posts/2015-06-12-ufw.md b/blog/_posts/2015-06-12-ufw.md
index c136c3a..a4bf5df 100644
--- a/blog/_posts/2015-06-12-ufw.md
+++ b/blog/_posts/2015-06-12-ufw.md
@@ -44,6 +44,7 @@ ufw allow from fe80::/10 to any port 631
 #ufw allow from 192.168.8.0/24 to any port 5353 proto udp
 ufw allow from fe80::/10 to any port 5353 proto udp
 #ufw allow from <static:Yggdrasil:IPv6> to any port 5900
+ufw allow 6771/udp
 ufw allow from fe80::/10 to any port 9001 proto udp
 ufw allow 60000:61000/udp
 ```
@@ -69,6 +70,7 @@ ufw allow 60000:61000/udp
 * 5353 UDP/mdns/Avahi — used for `.local` addresses.
 * 5900 — VNC port at least for `krfb kdrc` (KDE Remote Desktop server & client).
   I tend to only allow it from specific Yggdrasil address(es).
+* 6771/udp — [Bittorrent Local Peer Discovery](http://bittorrent.org/beps/bep_0014.html)
 * 9001/udp — [Yggdrasil](https://yggdrasil-network.github.io/) automatic
   peering port only on link-local.
 * 60000:61000 UDP/mosh — I feel this is the most insecure part of this