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-rw-r--r--doc/protocols.rst13
1 files changed, 11 insertions, 2 deletions
diff --git a/doc/protocols.rst b/doc/protocols.rst
index c93a18d62..63f89ee95 100644
--- a/doc/protocols.rst
+++ b/doc/protocols.rst
@@ -458,7 +458,7 @@ Ceph is a scalable distributed storage system.
References: `Main site <https://ceph.io/en/>`_
-.. _Proto 381:
+.. _Proto 382:
`NDPI_PROTOCOL_GOOGLE_CHAT`
=========================
@@ -467,10 +467,19 @@ Google Chat is an instant messaging service from Google, which replaced Hangouts
References: `Main site <https://chat.google.com/>`_
-.. _Proto 382:
+.. _Proto 383:
`NDPI_PROTOCOL_ROUGHTIME`
=========================
A protocol that aims to achieve rough time synchronization while detecting servers that provide inaccurate time and providing cryptographic proof of their malfeasance.
References: `IETF Draft <https://www.ietf.org/archive/id/draft-ietf-ntp-roughtime-08.html>`_
+
+
+.. _Proto 384:
+
+`NDPI_PROTOCOL_PIA`
+=========================
+Private Internet Access (PIA) is a popular VPN service from Kape Technologies.
+
+References: `Main site <https://www.privateinternetaccess.com/>`_