diff --git a/docs/DOCKER_PORTAINER.md b/docs/DOCKER_PORTAINER.md
index d1a08dc9..673c7757 100755
--- a/docs/DOCKER_PORTAINER.md
+++ b/docs/DOCKER_PORTAINER.md
@@ -46,6 +46,9 @@ services:
       - NET_RAW
       - NET_ADMIN
       - NET_BIND_SERVICE
+      - CHOWN
+      - SETUID
+      - SETGID               
     volumes:
       - ${APP_FOLDER}/netalertx/config:/data/config
       - ${APP_FOLDER}/netalertx/db:/data/db
diff --git a/docs/FILE_PERMISSIONS.md b/docs/FILE_PERMISSIONS.md
index 4621607e..ccad1604 100755
--- a/docs/FILE_PERMISSIONS.md
+++ b/docs/FILE_PERMISSIONS.md
@@ -60,6 +60,8 @@ To run as the root user, it usually looks like this (verify the IDs on your serv
 ...
 ```
 
+If you use a custom `PUID` (e.g. `0`) and `GUID` (e.g. `100`) make sure you also update the `tmpfs` ownership, e.g. `/tmp:uid=0,gid=100...`
+
 ### Solution
 
 1. **Run the container once as root** (`--user "0"`) to allow it to correct permissions automatically:
diff --git a/docs/PERFORMANCE.md b/docs/PERFORMANCE.md
index b8589141..a5f7cd63 100755
--- a/docs/PERFORMANCE.md
+++ b/docs/PERFORMANCE.md
@@ -92,6 +92,9 @@ services:
       - NET_RAW
       - NET_ADMIN
       - NET_BIND_SERVICE
+      - CHOWN
+      - SETUID
+      - SETGID
 
     volumes:
       - ${APP_FOLDER}/netalertx/config:/data/config
diff --git a/docs/SYNOLOGY_GUIDE.md b/docs/SYNOLOGY_GUIDE.md
index 7c978e9d..1329c0c2 100755
--- a/docs/SYNOLOGY_GUIDE.md
+++ b/docs/SYNOLOGY_GUIDE.md
@@ -47,6 +47,9 @@ services:
       - NET_RAW
       - NET_ADMIN
       - NET_BIND_SERVICE
+      - CHOWN
+      - SETUID
+      - SETGID
     volumes:
       - /app_storage/netalertx:/data
       # to sync with system time