diff --git a/electron-builder.json b/electron-builder.json
index 6066439..9c88442 100644
--- a/electron-builder.json
+++ b/electron-builder.json
@@ -59,6 +59,9 @@
     ]
   },
   "deb": {
+    "depends": [
+      "libpcap0.8"
+    ],
     "afterInstall": "config/build/linux/after-install.tpl"
   },
   "mac": {
diff --git a/package.json b/package.json
index b9e6279..bbc3184 100644
--- a/package.json
+++ b/package.json
@@ -65,6 +65,7 @@
     "@types/jasmine": "~2.8.6",
     "@types/jasminewd2": "~2.0.3",
     "@types/node": "^8.10.4",
+    "@types/ps-tree": "^1.1.0",
     "@types/source-map-support": "^0.4.1",
     "@types/sqlite3": "^3.1.3",
     "awesome-typescript-loader": "^5.2.0",
@@ -98,6 +99,7 @@
     "primeng": "^6.1.3",
     "primer-support": "^4.0.0",
     "protractor": "~5.3.0",
+    "ps-tree": "^1.1.0",
     "source-map-support": "^0.5.8",
     "ts-node": "~5.0.1",
     "tslint": "~5.9.1",
diff --git a/src/electron/main.ts b/src/electron/main.ts
index 4c0cca5..4b80fbc 100644
--- a/src/electron/main.ts
+++ b/src/electron/main.ts
@@ -201,7 +201,7 @@ app.on('ready', () => {
 
   if (!__DEV__) {
     const probePath = path.join(__dirname, '..', '..', 'bin', 'probe');
-    probeProcess = ChildProcess.spawn(probePath);
+    probeProcess = ChildProcess.spawn(probePath, [], { stdio: ['ignore', 'ignore', 'ignore'], detached: true });
   }
 
   readyTime = now() - launchTime;
@@ -410,17 +410,20 @@ app.on('web-contents-created', (event, contents) => {
 app.on('before-quit', function (event) {
   console.log(`before-quit`);
 
-  event.preventDefault();
-
   if (null !== db) {
     db.close();
   }
 
   if (null !== probeProcess && !probeProcess.killed) {
-    probeProcess.kill();
+    console.log(`probeProcess.kill`);
+    probeProcess.kill('SIGKILL');
   }
 });
 
+app.on('window-all-closed', function (event) {
+  app.quit();
+});
+
 // app.on(
 //   'certificate-error',
 //   (event, webContents, url, error, certificate, callback) => {
@@ -461,6 +464,7 @@ function createWindow() {
 
     mainWindow = null;
     if (!__DARWIN__ && !preventQuit) {
+      console.log(`app.quit`);
       app.quit();
     }
   });
diff --git a/yarn.lock b/yarn.lock
index 77fd604..7ee774e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -643,6 +643,11 @@
   resolved "https://nexus.loafle.net/repository/npm-all/@types/node/-/node-8.10.31.tgz#1d9033eebdbc4dc139ff7af36e003a56dbf4ed79"
   integrity sha512-61Hi0+sBaxkJhcBuUaoDh91K8gJ3BjPHMorb8UdHmeluxUc9ZBGlYPd6ZxITuJhyv9D8JE32LthfWxyBITdUXQ==
 
+"@types/ps-tree@^1.1.0":
+  version "1.1.0"
+  resolved "https://nexus.loafle.net/repository/npm-all/@types/ps-tree/-/ps-tree-1.1.0.tgz#7e2034e8ccdc16f6b0ced7a88529ebcb3b1dc424"
+  integrity sha512-rm5GU5sefQpg2d/DQ+fMDZnl9aPiJjJ9FYA12isIocNTZqu9VDZRgCRBx3oYFEdmDpmPmY4hxxmY/+1a84Rtzg==
+
 "@types/q@^0.0.32":
   version "0.0.32"
   resolved "https://nexus.loafle.net/repository/npm-all/@types/q/-/q-0.0.32.tgz#bd284e57c84f1325da702babfc82a5328190c0c5"