kea-dhcp4-server 在树莓派重启后不工作

Question

我已经在 raspberry pi3 b+ 上安装了 kea-dhcp4-server。我在 /etc/kea/kea-dhcp4.conf 上配置了所有内容，但出现问题。当我重新启动树莓派时，kea 不再响应 dhcp 请求，所以我运行 sudo service kea-dhcp4-server status 向我展示了这个

● kea-dhcp4-server.service - ISC KEA IPv4 DHCP daemon
   Loaded: loaded (/lib/systemd/system/kea-dhcp4-server.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2020-03-04 12:08:52 CET; 5min ago
     Docs: man:kea-dhcp4(8)
 Main PID: 415 (kea-dhcp4)
    Tasks: 1 (limit: 2200)
   Memory: 10.2M
   CGroup: /system.slice/kea-dhcp4-server.service
           └─415 /usr/sbin/kea-dhcp4 -c /etc/kea/kea-dhcp4.conf

Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile
Mar 04 12:08:53 rasp1 kea-dhcp4[415]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/isc_kea_logger_lockfile

我必须使用 sudo mkdir /var/run/kea/ 创建文件夹，然后使用 sudo service kea-dhcp4-service restart 重新启动服务以使其工作。但是如果我再次重启树莓派，问题又会出现。

我该如何解决？

Answer 1

我也在 Raspberry Pi 上使用 kea，我通过在每次 systemd 启动 kea 时创建 /var/run/kea 来解决它。

为此，请执行以下操作：

将kea systemd-unit文件复制到/etc/systemd/system

cp /lib/systemd/system/kea-dhcp4-server.service /etc/systemd/system

复制这个单元文件确保它不会被 kea 包的下一次更新覆盖。
将以下内容添加到此文件的 [Service]-部分：(/etc/systemd/system/kea-dhcp4-server.service)
```
ExecStartPre=/bin/mkdir -p /var/run/kea
```
此命令在 systemd 启动 kea 之前执行，它将创建丢失的目录。
执行systemctl daemon-reload。这将使 systemd 注意到新配置。

重启即可。

kea-dhcp4-server 在树莓派重启后不工作

kea-dhcp4-server doesn't work after a restart of the raspberry

raspberry-pi

raspberry-pi3