diff --git a/packages/slave/slave.js b/packages/slave/slave.js
index ecc492ed..a4db4b7e 100755
--- a/packages/slave/slave.js
+++ b/packages/slave/slave.js
@@ -886,6 +886,11 @@ async function discoverInstances(instancesDir) {
 				continue;
 			}
 
+			if (instanceInfos.has(instanceConfig.get("instance.id"))) {
+				logger.warn(`Ignoring instance with duplicate id in folder ${entry.name}`);
+				continue;
+			}
+
 			let instancePath = path.join(instancesDir, entry.name);
 			logger.verbose(`found instance ${instanceConfig.get("instance.name")} in ${instancePath}`);
 			instanceInfos.set(instanceConfig.get("instance.id"), {
diff --git a/packages/web_ui/src/components/InstanceList.jsx b/packages/web_ui/src/components/InstanceList.jsx
new file mode 100644
index 00000000..4a010ffa
--- /dev/null
+++ b/packages/web_ui/src/components/InstanceList.jsx
@@ -0,0 +1,58 @@
+import React from "react";
+import { useHistory } from "react-router-dom";
+import { Table } from "antd";
+
+import { useSlaveList } from "../model/slave";
+
+const strcmp = new Intl.Collator(undefined, { numerice: "true", sensitivity: "base" }).compare;
+
+
+export default function InstanceList(props) {
+	let history = useHistory();
+	let [slaveList] = useSlaveList();
+
+	function slaveName(slaveId) {
+		let slave = slaveList.find(s => s.id === slaveId);
+		if (slave) {
+			return slave.name;
+		}
+		return String(slaveId);
+	}
+
+	let columns = [
+		{
+			title: "Name",
+			dataIndex: "name",
+			defaultSortOrder: "ascend",
+			sorter: (a, b) => strcmp(a["name"], b["name"]),
+		},
+		{
+			title: "Assigned Slave",
+			key: "assigned_slave",
+			render: instance => slaveName(instance["assigned_slave"]),
+			sorter: (a, b) => strcmp(slaveName(a["assigned_slave"]), slaveName(b["assigned_slave"])),
+		},
+		{
+			title: "Status",
+			dataIndex: "status",
+			sorter: (a, b) => strcmp(a["status"], b["status"]),
+		},
+	];
+
+	if (props.hideAssignedSlave) {
+		columns.splice(1, 1);
+	}
+
+	return <Table
+		size={props.size || "large"}
+		columns={columns}
+		dataSource={props.instances}
+		rowKey={instance => instance["id"]}
+		pagination={false}
+		onRow={(record, rowIndex) => ({
+			onClick: event => {
+				history.push(`/instances/${record.id}/view`);
+			},
+		})}
+	/>;
+}
diff --git a/packages/web_ui/src/components/InstanceViewPage.jsx b/packages/web_ui/src/components/InstanceViewPage.jsx
index e9bf72c9..c5a27cb5 100644
--- a/packages/web_ui/src/components/InstanceViewPage.jsx
+++ b/packages/web_ui/src/components/InstanceViewPage.jsx
@@ -9,7 +9,7 @@ import { useAccount } from "../model/account";
 import ControlContext from "./ControlContext";
 import PageLayout from "./PageLayout";
 import InstanceConfigTree from "./InstanceConfigTree";
-import InstanceConsole from "./InstanceConsole";
+import LogConsole from "./LogConsole";
 import InstanceRcon from "./InstanceRcon";
 import AssignInstanceModal from "./AssignInstanceModal";
 import StartStopInstanceButton from "./StartStopInstanceButton";
@@ -127,7 +127,7 @@ export default function InstanceViewPage(props) {
 			account.hasAnyPermission("core.log.follow", "core.instance.send_rcon")
 			&& <Title level={5} style={{ marginTop: 16 }}>Console</Title>
 		}
-		{account.hasPermission("core.log.follow") && <InstanceConsole id={instanceId} />}
+		{account.hasPermission("core.log.follow") && <LogConsole instances={[instanceId]} />}
 		{
 			account.hasPermission("core.instance.send_rcon")
 			&& <InstanceRcon id={instanceId} disabled={instance["status"] !== "running"} />
diff --git a/packages/web_ui/src/components/InstancesPage.jsx b/packages/web_ui/src/components/InstancesPage.jsx
index 85996fe2..fb6dbd71 100644
--- a/packages/web_ui/src/components/InstancesPage.jsx
+++ b/packages/web_ui/src/components/InstancesPage.jsx
@@ -1,6 +1,6 @@
 import React, { useContext, useState } from "react";
 import { useHistory } from "react-router-dom";
-import { Button, Form, Input, Modal, PageHeader, Table } from "antd";
+import { Button, Form, Input, Modal, PageHeader } from "antd";
 
 import { libConfig, libLink } from "@clusterio/lib";
 
@@ -8,10 +8,8 @@ import { useAccount } from "../model/account";
 import ControlContext from "./ControlContext";
 import PageLayout from "./PageLayout";
 import { useInstanceList } from "../model/instance";
+import InstanceList from "./InstanceList";
 import { notifyErrorHandler } from "../util/notify";
-import { useSlaveList } from "../model/slave";
-
-const strcmp = new Intl.Collator(undefined, { numerice: "true", sensitivity: "base" }).compare;
 
 
 function CreateInstanceButton(props) {
@@ -61,19 +59,9 @@ function CreateInstanceButton(props) {
 }
 
 export default function InstancesPage() {
-	let history = useHistory();
 	let account = useAccount();
-	let [slaveList] = useSlaveList();
 	let [instanceList] = useInstanceList();
 
-	function slaveName(slaveId) {
-		let slave = slaveList.find(s => s.id === slaveId);
-		if (slave) {
-			return slave.name;
-		}
-		return String(slaveId);
-	}
-
 	return <PageLayout nav={[{ name: "Instances" }]}>
 		<PageHeader
 			className="site-page-header"
@@ -81,34 +69,6 @@ export default function InstancesPage() {
 			extra={account.hasPermission("core.instance.create") && <CreateInstanceButton />}
 		/>
 
-		<Table
-			columns={[
-				{
-					title: "Name",
-					dataIndex: "name",
-					defaultSortOrder: "ascend",
-					sorter: (a, b) => strcmp(a["name"], b["name"]),
-				},
-				{
-					title: "Assigned Slave",
-					key: "assigned_slave",
-					render: instance => slaveName(instance["assigned_slave"]),
-					sorter: (a, b) => strcmp(slaveName(a["assigned_slave"]), slaveName(b["assigned_slave"])),
-				},
-				{
-					title: "Status",
-					dataIndex: "status",
-					sorter: (a, b) => strcmp(a["status"], b["status"]),
-				},
-			]}
-			dataSource={instanceList}
-			rowKey={instance => instance["id"]}
-			pagination={false}
-			onRow={(record, rowIndex) => ({
-				onClick: event => {
-					history.push(`/instances/${record.id}/view`);
-				},
-			})}
-		/>
+		<InstanceList instances={instanceList} />
 	</PageLayout>;
 }
diff --git a/packages/web_ui/src/components/InstanceConsole.jsx b/packages/web_ui/src/components/LogConsole.jsx
similarity index 88%
rename from packages/web_ui/src/components/InstanceConsole.jsx
rename to packages/web_ui/src/components/LogConsole.jsx
index aa2d50ca..aa76c7a7 100644
--- a/packages/web_ui/src/components/InstanceConsole.jsx
+++ b/packages/web_ui/src/components/LogConsole.jsx
@@ -49,7 +49,7 @@ function formatLog(info, key) {
 	return <span key={key}>[{level}] {info.message}<br/></span>;
 }
 
-export default function InstanceConsole(props) {
+export default function LogConsole(props) {
 	let account = useAccount();
 	let control = useContext(ControlContext);
 	let anchor = useRef();
@@ -57,16 +57,20 @@ export default function InstanceConsole(props) {
 	let [lines, setLines] = useState([]);
 
 	useEffect(() => {
+		let logFilter = {
+			all: props.all || false,
+			master: props.master || false,
+			slave_ids: props.slaves || [],
+			instance_ids: props.instances || [],
+		};
+
 		// Scroll view to the anchor so it sticks to the bottom
 		let parent = anchor.current.parentElement;
 		parent.scrollTop = parent.scrollHeight - parent.clientHeight;
 
 		if (account.hasPermission("core.log.query")) {
 			libLink.messages.queryLog.send(control, {
-				all: false,
-				master: false,
-				slave_ids: [],
-				instance_ids: [props.id],
+				...logFilter,
 				max_level: null,
 				limit: 400,
 				order: "desc",
@@ -85,11 +89,11 @@ export default function InstanceConsole(props) {
 			));
 		}
 
-		control.onInstanceLog(props.id, logHandler);
+		control.onLog(logFilter, logHandler);
 		return () => {
-			control.offInstanceLog(props.id, logHandler);
+			control.offLog(logFilter, logHandler);
 		};
-	}, [props.id]);
+	}, [props.all, props.master, props.slaves, props.instances]);
 
 	return <>
 		<Paragraph code className="instance-console">
diff --git a/packages/web_ui/src/components/MasterPage.jsx b/packages/web_ui/src/components/MasterPage.jsx
index 53c83877..088d347e 100644
--- a/packages/web_ui/src/components/MasterPage.jsx
+++ b/packages/web_ui/src/components/MasterPage.jsx
@@ -1,15 +1,23 @@
 import React, { useContext } from "react";
+import { Typography } from "antd";
 
+import LogConsole from "./LogConsole";
 import { useAccount } from "../model/account";
 import MasterConfigTree from "./MasterConfigTree";
 import PageLayout from "./PageLayout";
 
+const { Title } = Typography;
+
 
 export default function SlavesPage() {
 	let account = useAccount();
 
 	return <PageLayout nav={[{ name: "Master" }]}>
 		<h2>Master</h2>
+		{account.hasPermission("core.log.follow") && <>
+			<Title level={5} style={{ marginTop: 16 }}>Console</Title>
+			<LogConsole master={true} />
+		</>}
 		{account.hasPermission("core.master.get_config") && <MasterConfigTree />}
 	</PageLayout>;
 };
diff --git a/packages/web_ui/src/components/SlaveViewPage.jsx b/packages/web_ui/src/components/SlaveViewPage.jsx
new file mode 100644
index 00000000..c5a985bd
--- /dev/null
+++ b/packages/web_ui/src/components/SlaveViewPage.jsx
@@ -0,0 +1,60 @@
+import React, { useContext, useState } from "react";
+import { Descriptions, PageHeader, Spin, Typography } from "antd";
+import { useParams } from "react-router-dom";
+
+import InstanceList from "./InstanceList";
+import LogConsole from "./LogConsole";
+import { useAccount } from "../model/account";
+import { useInstanceList } from "../model/instance";
+import { useSlave } from "../model/slave";
+import PageLayout from "./PageLayout";
+
+const { Title } = Typography;
+
+
+export default function SlaveViewPage(props) {
+	let params = useParams();
+	let slaveId = Number(params.id);
+	let account = useAccount();
+	let [instanceList] = useInstanceList();
+	let [slave] = useSlave(slaveId);
+
+	instanceList = instanceList.filter(instance => instance["assigned_slave"] === slaveId);
+
+	let nav = [{ name: "Slaves", path: "/slaves" }, { name: slave.name || slaveId }];
+	if (slave.loading) {
+		return <PageLayout nav={nav}><Spin size="large" /></PageLayout>;
+	}
+
+	if (slave.missing) {
+		return <PageLayout nav={nav}>
+			<PageHeader
+				className="site-page-header"
+				title={slaveId}
+			/>
+			<p>Slave with id {slaveId} was not found on the master server.</p>
+		</PageLayout>;
+	}
+
+	return <PageLayout nav={nav}>
+		<PageHeader
+			className="site-page-header"
+			title={slave.name || slaveId}
+		/>
+
+		<Descriptions bordered size="small" column={{ xs: 1, sm: 2, xl: 4 }}>
+			<Descriptions.Item label="Name">{slave["name"]}</Descriptions.Item>
+			<Descriptions.Item label="Connected">{slave["connected"] ? "yes" : "no"}</Descriptions.Item>
+			<Descriptions.Item label="Agent">{slave["agent"]}</Descriptions.Item>
+			<Descriptions.Item label="Version">{slave["version"]}</Descriptions.Item>
+		</Descriptions>
+		{account.hasPermission("core.instance.list") && <>
+			<Title level={5} style={{ marginTop: 16 }}>Instances</Title>
+			<InstanceList instances={instanceList} size="small" hideAssignedSlave />
+		</>}
+		{account.hasPermission("core.log.follow") && <>
+			<Title level={5} style={{ marginTop: 16 }}>Console</Title>
+			<LogConsole slaves={[slaveId]} />
+		</>}
+	</PageLayout>;
+}
diff --git a/packages/web_ui/src/components/SlavesPage.jsx b/packages/web_ui/src/components/SlavesPage.jsx
index f94001a8..9333752a 100644
--- a/packages/web_ui/src/components/SlavesPage.jsx
+++ b/packages/web_ui/src/components/SlavesPage.jsx
@@ -1,4 +1,5 @@
 import React, { useContext, useRef, useState } from "react";
+import { useHistory } from "react-router-dom";
 import { Button, Form, Input, Modal, PageHeader, Table } from "antd";
 
 import { libLink } from "@clusterio/lib";
@@ -75,6 +76,7 @@ function GenerateSlaveTokenButton(props) {
 
 export default function SlavesPage() {
 	let account = useAccount();
+	let history = useHistory();
 	let [slaveList] = useSlaveList();
 
 	return <PageLayout nav={[{ name: "Slaves" }]}>
@@ -112,6 +114,11 @@ export default function SlavesPage() {
 			dataSource={slaveList}
 			rowKey={slave => slave["id"]}
 			pagination={false}
+			onRow={(record, rowIndex) => ({
+				onClick: event => {
+					history.push(`/slaves/${record.id}/view`);
+				},
+			})}
 		/>
 	</PageLayout>;
 };
diff --git a/packages/web_ui/src/index.jsx b/packages/web_ui/src/index.jsx
index a692e723..ae2b6bbc 100644
--- a/packages/web_ui/src/index.jsx
+++ b/packages/web_ui/src/index.jsx
@@ -13,8 +13,10 @@ export { default as BaseConfigTree } from "./components/BaseConfigTree";
 export { default as InstanceConfigTree } from "./components/InstanceConfigTree";
 export { default as MasterConfigTree } from "./components/MasterConfigTree";
 
+export { default as LogConsole } from "./components/LogConsole";
+
 export { default as AssignInstanceModal } from "./components/AssignInstanceModal";
-export { default as InstanceConsole } from "./components/InstanceConsole";
+export { default as InstanceList } from "./components/InstanceList";
 export { default as InstanceRcon } from "./components/InstanceRcon";
 
 export { default as PageLayout } from "./components/PageLayout";
diff --git a/packages/web_ui/src/pages.jsx b/packages/web_ui/src/pages.jsx
index b643b0e5..cec0de30 100644
--- a/packages/web_ui/src/pages.jsx
+++ b/packages/web_ui/src/pages.jsx
@@ -2,6 +2,7 @@ import React from "react";
 
 import MasterPage from "./components/MasterPage";
 import SlavesPage from "./components/SlavesPage";
+import SlaveViewPage from "./components/SlaveViewPage";
 import InstancesPage from "./components/InstancesPage";
 import InstanceViewPage from "./components/InstanceViewPage";
 import UsersPage from "./components/UsersPage";
@@ -24,6 +25,11 @@ export const pages = [
 		permission: "core.slave.list",
 		content: <SlavesPage />,
 	},
+	{
+		path: "/slaves/:id/view",
+		sidebarPath: "/slaves",
+		content: <SlaveViewPage />,
+	},
 	{
 		path: "/instances",
 		sidebarName: "Instances",
diff --git a/packages/web_ui/src/util/websocket.jsx b/packages/web_ui/src/util/websocket.jsx
index 18c54f1c..5473ad49 100644
--- a/packages/web_ui/src/util/websocket.jsx
+++ b/packages/web_ui/src/util/websocket.jsx
@@ -27,6 +27,22 @@ export class ControlConnector extends libLink.WebSocketClientConnector {
 	}
 }
 
+function logFilter({ all, master, slave_ids, instance_ids }, info) {
+	if (all) {
+		return true;
+	}
+	if (master && info.slave_id === undefined) {
+		return true;
+	}
+	if (info.slave_id && slave_ids.includes(info.slave_id)) {
+		return true;
+	}
+	if (info.instance_id && instance_ids.includes(info.instance_id)) {
+		return true;
+	}
+	return false;
+}
+
 /**
  * Handles running the control
  *
@@ -70,7 +86,7 @@ export class Control extends libLink.Link {
 		this.slaveUpdateHandlers = new Map();
 		this.instanceUpdateHandlers = new Map();
 		this.saveListUpdateHandlers = new Map();
-		this.instanceLogHandlers = new Map();
+		this.logHandlers = new Map();
 
 		this.connector.on("connect", data => {
 			this.accountName = data.account.name;
@@ -302,23 +318,20 @@ export class Control extends libLink.Link {
 	async logMessageEventHandler(message) {
 		let info = message.data.info;
 
-		if (info.instance_id !== undefined) {
-			let instanceHandlers = this.instanceLogHandlers.get(info.instance_id);
-			for (let handler of instanceHandlers || []) {
-				handler(info);
+		for (let [filter, handlers] of this.logHandlers) {
+			if (logFilter(filter, info)) {
+				for (let handler of handlers) {
+					handler(info);
+				}
 			}
 		}
 	}
 
-	async onInstanceLog(id, handler) {
-		if (!Number.isInteger(id)) {
-			throw new Error("Invalid instance id");
-		}
-
-		let handlers = this.instanceLogHandlers.get(id);
+	async onLog(filter, handler) {
+		let handlers = this.logHandlers.get(filter);
 		if (!handlers) {
 			handlers = [];
-			this.instanceLogHandlers.set(id, handlers);
+			this.logHandlers.set(filter, handlers);
 		}
 
 		handlers.push(handler);
@@ -328,15 +341,15 @@ export class Control extends libLink.Link {
 		}
 	}
 
-	async offInstanceLog(id, handler) {
-		let handlers = this.instanceLogHandlers.get(id);
+	async offLog(filter, handler) {
+		let handlers = this.logHandlers.get(filter);
 		if (!handlers || !handlers.length) {
-			throw new Error(`No handlers for instance ${id} exist`);
+			throw new Error("No handlers for the given filter exists");
 		}
 
 		let index = handlers.lastIndexOf(handler);
 		if (index === -1) {
-			throw new Error(`Given handler is not registered for instance ${id}`);
+			throw new Error("Given handler is not registered for the filter");
 		}
 
 		handlers.splice(index, 1);
@@ -350,13 +363,29 @@ export class Control extends libLink.Link {
 			return;
 		}
 
-		await libLink.messages.setLogSubscriptions.send(this, {
+		let combinedFilter = {
 			all: false,
 			master: false,
 			slave_ids: [],
-			instance_ids: [...this.instanceLogHandlers.keys()],
-			max_level: null,
-		});
+			instance_ids: [],
+		};
+
+		for (let filter of this.logHandlers.keys()) {
+			if (filter.all) { combinedFilter.all = true; }
+			if (filter.master) { combinedFilter.master = true; }
+			for (let slaveId of filter.slave_ids || []) {
+				if (!combinedFilter.slave_ids.includes(slaveId)) {
+					combinedFilter.slave_ids.push(slaveId);
+				}
+			}
+			for (let instanceId of filter.instance_ids || []) {
+				if (!combinedFilter.instance_ids.includes(instanceId)) {
+					combinedFilter.instance_ids.push(instanceId);
+				}
+			}
+		}
+
+		await libLink.messages.setLogSubscriptions.send(this, { ...combinedFilter, max_level: null });
 	}
 
 	async debugWsMessageEventHandler(message) {