modified: README.md

README.md

@@ -16,6 +16,9 @@
   - [Network Configuration](#network-configuration)
     - [hostname / hostnamectl](#hostname--hostnamectl)
     - [static ip](#static-ip)
+  - [network utilities](#network-utilities)
+    - [ss - another utility to investigate sockets](#ss---another-utility-to-investigate-sockets)
+  - [processes](#processes)
   - [System info](#system-info)
   - [System Monitoring Utilities](#system-monitoring-utilities)
     - [btop](#btop)
@@ -225,6 +228,24 @@ Reiniciar configuração sem reboot de computador
 sudo /etc/init.d/networking restart
 ```
 
+### network utilities
+
+#### ss - another utility to investigate sockets
+
+ps aux | grep k3s
+
+``` bash
+ss -ltnp | grep 6444
+```
+
+### processes
+
+**find process:**
+
+``` bash
+ps aux | grep k3s
+```
+
 ### System info
 
 ```bash