From cf184055c4d0115f8f6bbf267afccbb6ef1446dd Mon Sep 17 00:00:00 2001
From: Niklas Meyer <62480600+DerLinkman@users.noreply.github.com>
Date: Wed, 6 Apr 2022 18:55:48 +0200
Subject: [PATCH] [Reverse Proxy] Added new Proxy Buffers to NGINX Reverse
 Proxy Conf (for SOGO 2022-04) (#390)

Co-authored-by: Niklas Meyer <niklas.meyer@tinc.gmbh>
---
 docs/post_installation/firststeps-rp.de.md | 9 +++++++--
 docs/post_installation/firststeps-rp.en.md | 7 ++++++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/docs/post_installation/firststeps-rp.de.md b/docs/post_installation/firststeps-rp.de.md
index 97263e8c2..4b7a92ee5 100644
--- a/docs/post_installation/firststeps-rp.de.md
+++ b/docs/post_installation/firststeps-rp.de.md
@@ -95,7 +95,7 @@ Let's Encrypt wird unserem Rewrite folgen, Zertifikatsanfragen in mailcow werden
 
 Let's Encrypt folgt unserem Rewrite, Zertifikatsanfragen funktionieren problemlos.
 
-**Kümmern Sie sich um die hervorgehobenen Zeilen**.
+**Achten Sie auf die hervorgehobenen Zeilen**.
 
 ``` hl_lines="4 10 12 13 25 39"
 server {
@@ -130,7 +130,7 @@ server {
     proxy_connect_timeout 75;
     proxy_send_timeout 3650;
     proxy_read_timeout 3650;
-    proxy_buffers 64 256k;
+    proxy_buffers 64 512k; # Seit dem 2022-04 Update nötig für SOGo
     client_body_buffer_size 512k;
     client_max_body_size 0;
   }
@@ -142,6 +142,11 @@ server {
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header X-Forwarded-Proto $scheme;
     client_max_body_size 0;
+  # Die folgenden Proxy-Buffer müssen gesetzt werden, wenn Sie SOGo nach dem Update 2022-04 (April 2022) verwenden wollen
+  # Andernfalls wird ein Login wie folgt fehlschlagen: https://github.com/mailcow/mailcow-dockerized/issues/4537
+	proxy_buffer_size 128k;
+    proxy_buffers 64 512k;
+    proxy_busy_buffers_size 512k;
   }
 }
 ```
diff --git a/docs/post_installation/firststeps-rp.en.md b/docs/post_installation/firststeps-rp.en.md
index afd9a65f5..0b4697beb 100644
--- a/docs/post_installation/firststeps-rp.en.md
+++ b/docs/post_installation/firststeps-rp.en.md
@@ -131,7 +131,7 @@ server {
     proxy_connect_timeout 75;
     proxy_send_timeout 3650;
     proxy_read_timeout 3650;
-    proxy_buffers 64 256k;
+    proxy_buffers 64 512k; # Needed since the 2022-04 Update for SOGo
     client_body_buffer_size 512k;
     client_max_body_size 0;
   }
@@ -143,6 +143,11 @@ server {
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header X-Forwarded-Proto $scheme;
     client_max_body_size 0;
+  # The following Proxy Buffers has to be set if you want to use SOGo after the 2022-04 (April 2022) Update
+  # Otherwise a Login will fail like this: https://github.com/mailcow/mailcow-dockerized/issues/4537
+	proxy_buffer_size 128k;
+    proxy_buffers 64 512k;
+    proxy_busy_buffers_size 512k;
   }
 }
 ```