RS: Port 53 must be available for RS installation on any OS (#1084)

* DOC-4620 RS: Port 53 must be available for installation on any OS

* Remove comma

Author: rrelledge

content/embeds/port-53.md

@@ -1,8 +1,6 @@
-If port 53 is in use, the installation fails. This can occur in
-default installations of Ubuntu 18.04 and 20.04 in which `systemd-resolved` (DNS server) is running.
+If port 53 is in use, the installation fails. This issue can occur in default installations of certain operating systems in which `systemd-resolved` (DNS server) is running.
 
-To prevent this issue, change the system configuration to make this port available
-before installation.
+To prevent this issue, change the system configuration to make this port available before installation.
 
 1. Edit `/etc/systemd/resolved.conf`: 
 

content/operate/rs/7.4/installing-upgrading/install/prepare-install/port-availability.md

@@ -19,6 +19,6 @@ Before [installing Redis Enterprise Software]({{< relref "/operate/rs/installing
 
 {{<embed-md "port-collision-avoidance.md">}}
 
-## Ubuntu conflicts with port 53
+## OS conflicts with port 53
 
 {{<embed-md "port-53.md">}}

content/operate/rs/7.4/installing-upgrading/quickstarts/redis-enterprise-software-quickstart.md

@@ -37,7 +37,7 @@ For production environments, see the [install and setup]({{< relref "/operate/rs
 
 {{<embed-md "port-collision-avoidance.md">}}
 
-### Ubuntu conflicts with port 53
+### OS conflicts with port 53
 
 {{<embed-md "port-53.md">}}
 

content/operate/rs/7.4/networking/port-configurations.md

@@ -134,7 +134,7 @@ rladmin cluster config cnm_http_port <new-port>
 rladmin cluster config cnm_https_port <new-port>
 ```
 
-### Ubuntu conflicts with port 53
+### OS conflicts with port 53
 
 {{<embed-md "port-53.md">}}
 

content/operate/rs/installing-upgrading/install/prepare-install/port-availability.md

@@ -18,6 +18,6 @@ Before [installing Redis Enterprise Software]({{< relref "/operate/rs/installing
 
 {{<embed-md "port-collision-avoidance.md">}}
 
-## Ubuntu conflicts with port 53
+## OS conflicts with port 53
 
 {{<embed-md "port-53.md">}}

content/operate/rs/installing-upgrading/quickstarts/redis-enterprise-software-quickstart.md

@@ -36,7 +36,7 @@ For production environments, see the [install and setup]({{< relref "/operate/rs
 
 {{<embed-md "port-collision-avoidance.md">}}
 
-### Ubuntu conflicts with port 53
+### OS conflicts with port 53
 
 {{<embed-md "port-53.md">}}
 

content/operate/rs/networking/port-configurations.md

@@ -133,7 +133,7 @@ rladmin cluster config cnm_http_port <new-port>
 rladmin cluster config cnm_https_port <new-port>
 ```
 
-### Ubuntu conflicts with port 53
+### OS conflicts with port 53
 
 {{<embed-md "port-53.md">}}