# OpenWrt SSH Dropbear 替換 Openssh

**OpenWrt內建使用Dropbear SSH ，屬於輕量化SSH伺服器以節省記憶體和資源，OpenWrt為軟路由，沒有記憶體不夠的困擾可安裝Openssh獲得完整功能**

**以下為ChatGPT整理差異**

[![image.png](https://note.homesitetw.com/uploads/images/gallery/2025-10/scaled-1680-/g2Pimage.png)](https://note.homesitetw.com/uploads/images/gallery/2025-10/g2Pimage.png)

##### **安裝Openssh**

```
opkg update
opkg install openssh-server openssh-client openssh-sftp-server
```

**編輯`/etc/ssh/sshd_config`**

**先將openssh port改成不要和內建dropbear ssh 衝突，並開啟root登入**

```
Port 2222

PermitRootLogin yes
```

**啟動ssh**

```
/etc/init.d/sshd enable
/etc/init.d/sshd start
```

**打開新的openwrt session，確認可從port 2222 登入後，移除dropbear**

```
/etc/init.d/dropbear disable
/etc/init.d/dropbear stop
opkg remove dropbear
```