diff --git a/Dockerfile b/Dockerfile
index efe6460..1c66662 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,3 +27,9 @@ RUN sudo chmod +x ${JAMOTA_ROOT}/start.sh
 # redis script setup
 COPY ./redis/redis.sh ${JAMOTA_ROOT}/redis/redis.sh
 RUN sudo chmod +x ${JAMOTA_ROOT}/redis/redis.sh
+
+RUN sudo mkdir -p ${JAMOTA_ROOT}/channels/files
+RUN sudo chmod a+rwx ${JAMOTA_ROOT}/channels/files
+
+RUN sudo mkdir -p ${JAMOTA_ROOT}/channels/commands
+RUN sudo chmod a+rwx ${JAMOTA_ROOT}/channels/commands
diff --git a/TODO.md b/TODO.md
index a77d870..3741471 100644
--- a/TODO.md
+++ b/TODO.md
@@ -26,6 +26,7 @@
         * through website, user executes jamkill to stop current running JAMScript program
         * through website, user uploads new .jxe file
         * through website, user executes jamrun to start new file
+        * update jxe_loader to match website data
 1. website
     * robust UI
     * auto-refresh page data (pull/push)
diff --git a/ota-portal/app.js b/ota-portal/app.js
index f35dc7f..3b8931c 100644
--- a/ota-portal/app.js
+++ b/ota-portal/app.js
@@ -17,6 +17,7 @@ var app = express();
 
 // basic middleware
 app.use(logger('dev'));
+app.use(express.raw());
 app.use(express.text({
     type: "text/*"
 }));
diff --git a/ota-portal/bin/www b/ota-portal/bin/www
index ceb9c96..cde5308 100644
--- a/ota-portal/bin/www
+++ b/ota-portal/bin/www
@@ -10,6 +10,9 @@ var fs = require('fs');
 var crypto = require('crypto');
 var rclient = require('../utils/redis-client');
 
+// Print current user
+console.log(require("os").userInfo().username);
+
 /**
  * Create admin user.
  */
diff --git a/ota-portal/public/javascripts/nodes/tools.js b/ota-portal/public/javascripts/nodes/tools.js
index de8ec90..c790da4 100644
--- a/ota-portal/public/javascripts/nodes/tools.js
+++ b/ota-portal/public/javascripts/nodes/tools.js
@@ -10,7 +10,7 @@ async function deleteNode(nodeId) {
     await dataRequest("DELETE", `nodes/${nodeId}`);
 }
 
-async function uploadFile(networkId) {
+async function getChannel(networkId) {
     // get node IDs to upload to
     let nodeSelectElements = document.querySelectorAll("input.node-selector");
     let nodeIds = [];
@@ -24,15 +24,18 @@ async function uploadFile(networkId) {
     let channelRes = await dataRequest("POST", `networks/${networkId}/channel`, undefined, {
         "nodeIds": nodeIds
     });
+    console.log(channelRes);
+}
 
-    return;
+async function uploadFile(networkId) {
+    await getChannel(networkId);
 
     // upload file
     let file = document.querySelector("#file-input").files[0];
     const reader = new FileReader();
     reader.onload = (e) => {
         console.log("Sending file " + file.name);
-        dataRequest("POST", "file", undefined, e.target.result, "application/octet-stream")
+        dataRequest("POST", `networks/${networkId}/channel/file`, undefined, e.target.result, "application/octet-stream")
             .then((data) => {
                 console.log(data);
             })
@@ -40,5 +43,18 @@ async function uploadFile(networkId) {
                 console.log(err);
             });
     };
+
+    // read file
     reader.readAsArrayBuffer(file);
 }
+
+async function uploadCommand(networkId) {
+    await getChannel(networkId);
+
+    // read command
+    const cmd = document.querySelector("#cmd-input").value;
+
+    // upload command
+    let cmdRes = await dataRequest("POST", `networks/${networkId}/channel/cmd`, undefined, cmd, "text/plain");
+    console.log(cmdRes);
+}
diff --git a/ota-portal/routes/networkChannels.js b/ota-portal/routes/networkChannels.js
index fad9ec1..e051ec7 100644
--- a/ota-portal/routes/networkChannels.js
+++ b/ota-portal/routes/networkChannels.js
@@ -12,6 +12,31 @@ const rclient = require("../utils/redis-client");
 const network = require("../utils/network");
 const channel = require("../utils/channel");
 const node = require("../utils/node");
+const fs = require("fs");
+
+const { spawn } = require("child_process");
+
+const scriptPath = (script) => `${process.env.JAMOTA_ROOT}/ota-portal/bin/${script}.js`;
+
+async function execNodeScript(args, onstdout, onstderr) {
+    return new Promise((resolve, reject) => {
+        const proc = spawn("node", args, {
+            detached: true
+        });
+
+        if (onstdout) {
+            proc.stdout.on("data", onstdout);
+        }
+
+        if (onstderr) {
+            proc.stderr.on("data", onstderr);
+        }
+
+        proc.on("exit", (code) => {
+            resolve(code);
+        });
+    });
+}
 
 /**
  * Create a channel to communicate with multiple nodes. Each network can only have one active channel.
@@ -45,7 +70,51 @@ router.post("/:id/channel", errors.asyncWrap(async function(req, res) {
     await channel.newChannelObj(networkId, nodeIds);
 
     // return response
-    res.status(200);
+    res.sendStatus(200);
 }));
 
+/**
+ * Upload a file to the channel.
+ */
+router.post("/:id/channel/file", async function(req, res) {
+    req.setEncoding(null);
+
+    try {
+        // persist file locally
+        fs.writeFileSync(`${process.env.JAMOTA_ROOT}/channels/${req.params.id}`, Buffer.from(req.body));
+
+        // asynchronously dispatch process to upload file to nodes
+        execNodeScript([scriptPath("jxe_loader"), "--networkId", req.params.id, "--type", "file"], (data) => {
+            console.log(data.toString());
+        });
+
+        res.sendStatus(200);
+    }
+    catch (e) {
+        console.log("Failed", e);
+        res.sendStatus(500);
+    }
+});
+
+/**
+ * Upload a command to the channel.
+ */
+router.post("/:id/channel/cmd", async function(req, res) {
+    try {
+        let cmd = req.body;
+        console.log(cmd);
+
+        // dispatch process to send command to nodes
+        execScript([scriptPath("jxe_loader"), "--networkId", req.params.id, "--type", "command"], (data) => {
+            console.log(data.toString());
+        });
+
+        res.sendStatus(200);
+    }
+    catch (e) {
+        console.log("Failed", e);
+        res.sendStatus(500);
+    }
+});
+
 module.exports = router;
diff --git a/ota-portal/routes/networks.js b/ota-portal/routes/networks.js
index fc67d72..4db7bfe 100644
--- a/ota-portal/routes/networks.js
+++ b/ota-portal/routes/networks.js
@@ -11,6 +11,7 @@ const request = require("../utils/request");
 
 const ijam_types = require("../utils/ijam_types");
 const network = require("../utils/network");
+const passphrases = require("../utils/network_passphrase");
 const node = require("../utils/node");
 
 /**
@@ -61,7 +62,7 @@ router.delete("/:id", errors.asyncWrap(async function(req, res, next) {
     await rclient.del(node.networkNodesKey(networkId));
 
     // delete passphrases
-    await network.clearPassphrases(networkId);
+    await passphrases.clearPassphrases(networkId);
 
     // remove from user network list
     await rclient.removeFromSet(network.userNetworksKeyFromReq(req), networkId);
@@ -91,7 +92,7 @@ async function filterNetworkEntries(networkIds) {
 
             networks[networkId] = map(networkObj,
                 await rclient.getSetSize(node.networkNodesKey(networkId)),
-                await network.getNumberOfPassphrases(networkId));
+                await passphrases.getNumberOfPassphrases(networkId));
         }
     }
 
diff --git a/ota-portal/utils/network_passphrase.js b/ota-portal/utils/network_passphrase.js
index f1079cd..b07e1d0 100644
--- a/ota-portal/utils/network_passphrase.js
+++ b/ota-portal/utils/network_passphrase.js
@@ -1,4 +1,6 @@
 
+const rclient = require("./redis-client");
+
 const maxPassphraseLength = 16;
 
 /** Get the key mapping to the network's active passphrases. */
diff --git a/ota-portal/views/node/list.pug b/ota-portal/views/node/list.pug
index ebbe418..a7aeaae 100644
--- a/ota-portal/views/node/list.pug
+++ b/ota-portal/views/node/list.pug
@@ -6,9 +6,15 @@ block content
   h2 Command center
 
   div
-    label Select file to upload to selected nodes
-      input(type="file" id="file-input")
-      input(type="submit" value="Upload", onclick="uploadFile('" + networkId + "')")
+    p
+      label Select file to upload to selected nodes
+        input(type="file" id="file-input")
+        input(type="submit" value="Upload", onclick="uploadFile('" + networkId + "')")
+
+    p
+      label Send command to selected nodes
+        input(type="text" id="cmd-input")
+        input(type="submit" value="Upload" onclick="uploadCommand('" + networkId + "')")
 
   h2 Table of nodes