Create page about diagnostics (#126)

source/manual.rst

@@ -39,5 +39,6 @@ User Manual
    manual/captiveportal
    manual/dynamic_routing
    manual/opnsense_tools
+   manual/diagnostics
    manual/monit
    manual/howtos

source/manual/diagnostics.rst

@@ -0,0 +1,32 @@
+===========
+Diagnostics
+===========
+
+In order to get more insight into your network, and to help solve problems, OPNsense contains several diagnostic tools.
+
+The tools can be found in three places:
+
+* **System -> Diagnostics**
+* **Interfaces -> Diagnostics**
+* **Firewall -> Diagnostics**
+
+The following tools are available:
+
+=================================================== ===========================================================================
+ **System -> Diagnostics -> Activity**               Show executed commands
+ **System -> Diagnostics -> Services**               Shows running services, allows starting/stopping/restarting
+ **Interfaces -> Diagnostics -> ARP Table**          Show ARP table, which lists local connected IPv4 peers
+ **Interfaces -> Diagnostics -> DNS Lookup**         Easy lookup of IPs and A records that belong to a hostname
+ **Interfaces -> Diagnostics -> NDP Table**          Show NDP table, which lists local connected IPv6 peers
+ **Interfaces -> Diagnostics -> Packet capture**     Capture packets travelling through an interface
+ **Interfaces -> Diagnostics -> Ping**               Ping a hostname or IP address
+ **Interfaces -> Diagnostics -> Port Probe**         Test if a host has a certain TCP port open and accepts connections on it
+ **Interfaces -> Diagnostics -> Trace Route**        Trace route to a hostname or IP address
+ **Firewall -> Diagnostics -> pfInfo**               General information and statistics for pf
+ **Firewall -> Diagnostics -> pfTop**                Currently active pf states and routes
+ **Firewall -> Diagnostics -> pfTables**             Shows IP addresses belonging to aliases
+ **Firewall -> Diagnostics -> Sockets**              Shows listening sockets for IPv4 and IPv6
+ **Firewall -> Diagnostics -> States Dump**          Currently active states
+ **Firewall -> Diagnostics -> States Reset**         Delete active states and source tracking (cancels connections)
+ **Firewall -> Diagnostics -> States Summary**       Show states sorted by criteria like source IP, destination IP, …
+=================================================== ===========================================================================