diff --git a/app/controller/System.php b/app/controller/System.php
index 0e2ebf3..3b9597a 100644
--- a/app/controller/System.php
+++ b/app/controller/System.php
@@ -95,11 +95,12 @@ class System extends BaseController
     public function proxytest()
     {
         if (!checkPermission(2)) return $this->alert('error', '无权限');
-        $proxy_server = trim($_POST['proxy_server']);
-        $proxy_port = $_POST['proxy_port'];
-        $proxy_user = trim($_POST['proxy_user']);
-        $proxy_pwd = trim($_POST['proxy_pwd']);
-        $proxy_type = $_POST['proxy_type'];
+        $proxy_server = input('post.proxy_server', '', 'trim');
+        $proxy_port = input('post.proxy_port/d', 0);
+        $proxy_user = input('post.proxy_user', '', 'trim');
+        $proxy_pwd = input('post.proxy_pwd', '', 'trim');
+        $proxy_type = input('post.proxy_type', 'http', 'trim');
+        
         try {
             check_proxy('https://dl.amh.sh/ip.htm', $proxy_server, $proxy_port, $proxy_type, $proxy_user, $proxy_pwd);
         } catch (Exception $e) {
diff --git a/app/lib/deploy/ssh.php b/app/lib/deploy/ssh.php
index bd964c0..88a1501 100644
--- a/app/lib/deploy/ssh.php
+++ b/app/lib/deploy/ssh.php
@@ -159,14 +159,20 @@ class ssh implements DeployInterface
             file_put_contents($privateKeyPath, $this->config['privatekey']);
             file_put_contents($publicKeyPath, $publicKey);
             umask($umask);
-            if (!empty($this->config['passphrase'])) {
-                if (!ssh2_auth_pubkey_file($connection, $this->config['username'], $publicKeyPath, $privateKeyPath, $this->config['passphrase'])) {
-                    throw new Exception('私钥认证失败');
-                }
-            } else {
-                if (!ssh2_auth_pubkey_file($connection, $this->config['username'], $publicKeyPath, $privateKeyPath)) {
-                    throw new Exception('私钥认证失败');
+            
+            try {
+                if (!empty($this->config['passphrase'])) {
+                    if (!ssh2_auth_pubkey_file($connection, $this->config['username'], $publicKeyPath, $privateKeyPath, $this->config['passphrase'])) {
+                        throw new Exception('私钥认证失败');
+                    }
+                } else {
+                    if (!ssh2_auth_pubkey_file($connection, $this->config['username'], $publicKeyPath, $privateKeyPath)) {
+                        throw new Exception('私钥认证失败');
+                    }
                 }
+            } finally {
+                unlink($publicKeyPath);
+                unlink($privateKeyPath);
             }
         } else {
             if (!ssh2_auth_password($connection, $this->config['username'], $this->config['password'])) {