當介面連線時執行自訂腳本

Question

我使用 USB wifi 適配器連接到互聯網。當無線連線中斷時，我也會遺失一些 iproute 規則。

當介面再次連接時如何重置這些規則？

Answer 1

如果您ifupdown（很可能您使用的是 Debian 或基於 Debian 的發行版），請查看man interfaces：

   post-up command
          Run command after bringing the interface up.  If this command fails then ifup aborts, refraining from marking the interface as  con‐
          figured  (even though it has really been configured), prints an error message, and exits with status 0.  This behavior may change in
          the future.

所以/etc/network/interfaces你可以有類似的東西

auto eth0
    iface eth0 inet dhcp
    post-up /usr/local/sbin/my-custom-script

將 eth0 替換為您的實際介面。