Merge pull request #109437 from memildin/asc-melvyn-20200129

Tiny fix - removed dupe listing of port 1900

Author: PRMerger16

articles/security-center/security-center-adaptive-network-hardening.md

@@ -27,7 +27,7 @@ Adaptive Network Hardening provides recommendations to further harden the NSG ru
 For example, let's say the existing NSG rule is to allow traffic from 140.20.30.10/24 on port 22. The Adaptive Network Hardening's recommendation, based on the analysis, would be to narrow the range and allow traffic from 140.23.30.10/29 – which is a narrower IP range, and deny all other traffic to that port.
 
 >[!TIP]
-> Adaptive Network Hardening recommendations are only supported on the following specific ports (for both UDP and TCP): 13, 17, 19, 22, 23, 53, 69, 81, 111, 119, 123, 135, 137, 138, 139, 161, 162, 389, 445, 512, 514, 593, 636, 873, 1433, 1434, 1900, 1900, 2049, 2301, 2323, 2381, 3268, 3306, 3389, 4333, 5353, 5432, 5555, 5800, 5900, 5900, 5985, 5986, 6379, 6379, 7000, 7001, 7199, 8081, 8089, 8545, 9042, 9160, 9300, 11211, 16379, 26379, 27017, 37215
+> Adaptive Network Hardening recommendations are only supported on the following specific ports (for both UDP and TCP): 13, 17, 19, 22, 23, 53, 69, 81, 111, 119, 123, 135, 137, 138, 139, 161, 162, 389, 445, 512, 514, 593, 636, 873, 1433, 1434, 1900, 2049, 2301, 2323, 2381, 3268, 3306, 3389, 4333, 5353, 5432, 5555, 5800, 5900, 5900, 5985, 5986, 6379, 6379, 7000, 7001, 7199, 8081, 8089, 8545, 9042, 9160, 9300, 11211, 16379, 26379, 27017, 37215
 
 
 ![Network hardening view](./media/security-center-adaptive-network-hardening/traffic-hardening.png)