diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/examples/AgentPoolsCreate_CustomNodeConfig.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/examples/AgentPoolsCreate_CustomNodeConfig.json
index de43307bd2f6..8b893fcb6c41 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/examples/AgentPoolsCreate_CustomNodeConfig.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/examples/AgentPoolsCreate_CustomNodeConfig.json
@@ -33,7 +33,11 @@
           },
           "transparentHugePageEnabled": "always",
           "transparentHugePageDefrag": "madvise",
-          "swapFileSizeMB": 1500
+          "swapFileSizeMB": 1500,
+          "ulimits": {
+            "maxLockedMemory": "infinity",
+            "noFile": "1000"
+          }
         }
       }
     }
@@ -74,7 +78,11 @@
             },
             "transparentHugePageEnabled": "always",
             "transparentHugePageDefrag": "madvise",
-            "swapFileSizeMB": 1500
+            "swapFileSizeMB": 1500,
+            "ulimits": {
+              "noFile": "1000",
+              "maxLockedMemory": "infinity"
+            }
           }
         }
       }
diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/managedClusters.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/managedClusters.json
index b14aa9c0d1e4..e004a27af325 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/managedClusters.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/managedClusters.json
@@ -6522,6 +6522,10 @@
           "type": "integer",
           "format": "int32",
           "description": "The size in MB of a swap file that will be created on each node."
+        },
+        "ulimits": {
+          "$ref": "#/definitions/UlimitConfig",
+          "description": "Ulimit settings for Linux agent nodes."
         }
       }
     },
@@ -6635,6 +6639,8 @@
         "netIpv4TcpkeepaliveIntvl": {
           "type": "integer",
           "format": "int32",
+          "minimum": 10,
+          "maximum": 90,
           "description": "Sysctl setting net.ipv4.tcp_keepalive_intvl."
         },
         "netIpv4TcpTwReuse": {
@@ -6663,11 +6669,15 @@
         "netNetfilterNfConntrackMax": {
           "type": "integer",
           "format": "int32",
+          "minimum": 131072,
+          "maximum": 2097152,
           "description": "Sysctl setting net.netfilter.nf_conntrack_max."
         },
         "netNetfilterNfConntrackBuckets": {
           "type": "integer",
           "format": "int32",
+          "minimum": 65536,
+          "maximum": 524288,
           "description": "Sysctl setting net.netfilter.nf_conntrack_buckets."
         },
         "fsInotifyMaxUserWatches": {
@@ -6712,6 +6722,20 @@
         }
       }
     },
+    "UlimitConfig": {
+      "description": "Ulimit settings for Linux agent nodes",
+      "type": "object",
+      "properties": {
+        "maxLockedMemory": {
+          "type": "string",
+          "description": "Maximum locked-in-memory address space (KB)"
+        },
+        "noFile": {
+          "type": "string",
+          "description": "Maximum number of open files"
+        }
+      }
+    },
     "ManagedClusterHTTPProxyConfig": {
       "description": "Cluster HTTP proxy configuration.",
       "type": "object",