From 999427854aa825ae7d7ca8ea509cefac68559ad1 Mon Sep 17 00:00:00 2001
From: Robin Dadswell <19610103+RobinDadswell@users.noreply.github.com>
Date: Mon, 31 May 2021 19:57:20 +0100
Subject: [PATCH] Fixed: Falls back to IP address when DNS resolution is not
 possible

---
 src/Prowlarr.Http/Extensions/RequestExtensions.cs | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/Prowlarr.Http/Extensions/RequestExtensions.cs b/src/Prowlarr.Http/Extensions/RequestExtensions.cs
index e5fd88d7c..cf65c2480 100644
--- a/src/Prowlarr.Http/Extensions/RequestExtensions.cs
+++ b/src/Prowlarr.Http/Extensions/RequestExtensions.cs
@@ -165,9 +165,16 @@ namespace Prowlarr.Http.Extensions
         {
             string ip = request.GetRemoteIP();
             IPAddress myIP = IPAddress.Parse(ip);
-            IPHostEntry getIPHost = Dns.GetHostEntry(myIP);
-            List<string> compName = getIPHost.HostName.ToString().Split('.').ToList();
-            return compName.First();
+            try
+            {
+                IPHostEntry getIPHost = Dns.GetHostEntry(myIP);
+                List<string> compName = getIPHost.HostName.ToString().Split('.').ToList();
+                return compName.First();
+            }
+            catch
+            {
+                return ip;
+            }
         }
 
         public static string GetServerUrl(this HttpRequest request)