diff --git a/categories/devops/linux.md b/categories/devops/linux.md
index 72e416d..c4bd0f9 100644
--- a/categories/devops/linux.md
+++ b/categories/devops/linux.md
@@ -18,6 +18,13 @@ ssh-add ~/.ssh/id_rsa
 
 ssh-copy-id user@ip -p 22222
 ```
+
+### Add user to the sudo group
+
+```bash
+usermod -aG sudo youruser
+```
+
 ### IP table
 
 ### Cron job
@@ -231,6 +238,11 @@ rsync -avz --exclude downloads --exclude 'some-folder' /mnt rsync://user@192.168
 
 You can export `RSYNC_PASSWORD` to pass password to the command.
 
+#### Check rsync logs
+
+```bash
+grep -ir rsync /var/log
+```
 
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