Added logging, added Elmah error logging

Services/LdapService.cs

@@ -12,11 +12,13 @@ public class LdapService : IDisposable
 {
     private readonly LdapOptions _opts;
     private readonly LdapConnection _conn;
+    private ILogger _logger;
 
-    public LdapService(IOptions<LdapOptions> options)
+    public LdapService(IOptions<LdapOptions> options, ILogger<LdapService> logger)
     {
         _opts = options.Value;
         _conn = new LdapConnection { SecureSocketLayer = _opts.UseSsl };
+        _logger = logger;
         ConnectAndBind();
     }
 
@@ -26,7 +28,15 @@ public class LdapService : IDisposable
         {
             Console.WriteLine(_opts.Host);
             Console.WriteLine(_opts.Port);
-            _conn.Connect(_opts.Host, _opts.Port);
+            try
+            {
+                _conn.Connect(_opts.Host, _opts.Port);
+            }
+            catch (SystemException ex)
+            {
+                _logger.LogCritical("Unable to connect to LDAP: {ex.Message}\n{ex.StackTrace}", [ex.Message, ex.StackTrace]);
+                throw;
+            }
         }
         _conn.Bind(_opts.BindDn, _opts.BindPassword);
     }