Github user sjcorbett commented on a diff in the pull request:
https://github.com/apache/incubator-brooklyn/pull/741#discussion_r34260328
--- Diff: docs/guide/dev/tips/troubleshooting-connectivity.md ---
@@ -0,0 +1,141 @@
+---
+layout: website-normal
+title: Troubleshooting Server Connectivity Issues in the Cloud
+toc: /guide/toc.json
+---
+
+A common problem when setting up an application in the cloud is getting
the basic connectivity right - how
+do I get my service (e.g. a TCP host:port) publicly accessible over the
internet.
+
+This varies a lot - e.g. is the VM public or in a private network, is the
service only accessible through
+a load balancer, should the service be globally reachable or only to a
particular CIDR.
+
+This blog post gives some general tips for debugging connectivity issues,
which are applicable to a
+range of different service types. Choose those that are appropriate for
your use-case.
+
+## VM reachable
+If the VM is supposed to be accessible directly (e.g. from the public
internet, or if in a private network
+then from a jump host)...
+
+### ping
+Can you `ping` the VM from the machine you are trying to reach it from.
--- End diff --
A number of these paragraphs should end with question marks.
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