DOCS-15980 ubuntu compatibility (#84)

* DOCS-15980 ubuntu compatibility

* Fix build errors

* DOCS-15980 ubuntu compatibility

* Copyable

* Review feedback

* Subst

* Clean up

Author: Dave Cuthbert

source/includes/changelogs/releases/100.5.2.rst

@@ -6,8 +6,9 @@
 *Released 2022-02-03*
 
 This release fixes an issue where inserting large documents with
-:ref:`mongorestore` or :ref:`mongoimport` could cause extremely high
-memory usage (:issue:`TOOLS-2875`). It also fixes a few minor bugs.
+:ref:`mongorestore <mongorestore>` or :ref:`mongoimport <mongoimport>`
+could cause extremely high memory usage (:issue:`TOOLS-2875`). It also
+fixes a few minor bugs.
 
 Bug
 ~~~

source/includes/changelogs/releases/100.7.0.rst

@@ -51,6 +51,6 @@ Task
 - :issue:`TOOLS-3256` Make the push tasks only run on git tags
 - :issue:`TOOLS-3257` Override deprecated mongo shell functions to fix
   qa-tests-latest
-- :issue:`TOOLS-3259` Remove 6.3 tests on `ZAP s390x RHEL 7.2` and `ZAP
-  PPC64LE RHEL 8.1`
+- :issue:`TOOLS-3259` Remove 6.3 tests on ``ZAP s390x RHEL 7.2`` and
+  ``ZAP PPC64LE RHEL 8.1``
 - :issue:`TOOLS-3260` Fix qa-tests on Debian 11

source/includes/ubuntu-connection.rst

@@ -0,0 +1,10 @@
+Ubuntu 18.04 may use a non-standard DNS resolver. When you use a
+non-standard DNS resolver, |app-name| returns an error message like:
+
+.. code-block:: shell
+   :copyable: false
+
+   error parsing uri: lookup <HOSTNAME> on 127.0.0.53:53: cannot unmarshal DNS message
+
+To resolve the problem, edit ``/etc/resolv.conf`` to point to a
+different DNS resolver.

source/mongodump.txt

@@ -75,6 +75,12 @@ Platform Support
 
 .. include:: /includes/fact-platform-support.rst
 
+Additional Considerations for Ubuntu 18.04
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. |app-name| replace:: ``mongodump``
+.. include:: /includes/ubuntu-connection.rst
+
 Installation
 ------------
 

source/mongorestore.txt

@@ -62,6 +62,12 @@ platforms:
 
 .. include:: /includes/fact-platform-support.rst
 
+Additional Considerations for Ubuntu 18.04
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. |app-name| replace:: ``mongorestore``
+.. include:: /includes/ubuntu-connection.rst
+
 Installation
 ------------