openwrt开启ssh的sftp

``` 修改dropbear的端口为2222 uci set dropbear.@dropbear[0].Port='2222' uci commit dropbear 重启dropbear生效 /etc/init.d/dropbear restart

安装openssh-server和openssh-sftp-server即可

在/etc/ssh/sshd_config最后添加 HostKeyAlgorithms ssh-rsa,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521 重启ssh: /etc/init.d/sshd restart