Avahi / mDNS不工作

Question

我在让我的服务器通过mDNS / Avahi互相交谈时遇到了问题。

我有两个服务器，一个Ubuntu服务器和一个Raspberry PI。

user@WORKCOM9001~ ()$ sudo service avahi-daemon status
● avahi-daemon.service - Avahi mDNS/DNS-SD Stack
     Loaded: loaded (/lib/systemd/system/avahi-daemon.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2020-07-01 21:54:45 PDT; 4min 6s ago
TriggeredBy: ● avahi-daemon.socket
   Main PID: 1101 (avahi-daemon)
     Status: "avahi-daemon 0.7 starting up."
      Tasks: 2 (limit: 18921)
     Memory: 2.5M
     CGroup: /system.slice/avahi-daemon.service
             ├─1101 avahi-daemon: running [WORKCOM9001.local]
             └─1160 avahi-daemon: chroot helper

在我的覆盆子上我得到了：

pi@raspberrypi2:~ $ sudo service avahi-daemon status
● avahi-daemon.service - Avahi mDNS/DNS-SD Stack
   Loaded: loaded (/lib/systemd/system/avahi-daemon.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2020-07-01 18:36:47 PDT; 3h 21min ago
 Main PID: 276 (avahi-daemon)
   Status: "avahi-daemon 0.7 starting up."
   Memory: 956.0K
   CGroup: /system.slice/avahi-daemon.service
           ├─276 avahi-daemon: running [raspberrypi2.local]
           └─287 avahi-daemon: chroot helper

我可以用IP地址(即ssh pi@192.168.1.80)从彼此之间将ping和SSH分别插入其中，但是使用主机名+ .local，则不工作。

但是avahi-browse没有显示来自另一个设备的任何一种设备。(即从我的服务器)：

+ wlp61s0 IPv6 EPSON XP-830 Series                           _uscan._tcp          local
+ wlp61s0 IPv4 EPSON XP-830 Series                           _uscan._tcp          local
+ wlp61s0 IPv6 EPSON XP-830 Series                           _privet._tcp         local
+ wlp61s0 IPv4 EPSON XP-830 Series                           _privet._tcp         local
+ wlp61s0 IPv6 EPSON XP-830 Series                           Secure Internet Printer local
+ wlp61s0 IPv4 EPSON XP-830 Series                           Secure Internet Printer local
+ wlp61s0 IPv6 EPSON XP-830 Series                           Internet Printer     local
+ wlp61s0 IPv4 EPSON XP-830 Series                           Internet Printer     local
+ wlp61s0 IPv6 EPSON XP-830 Series                           _scanner._tcp        local
+ wlp61s0 IPv4 EPSON XP-830 Series                           _scanner._tcp        local
+ wlp61s0 IPv6 EPSON XP-830 Series                           Microsoft Windows Network local
+ wlp61s0 IPv4 EPSON XP-830 Series                           Microsoft Windows Network local
+ wlp61s0 IPv6 EPSON XP-830 Series                           Web Site             local
+ wlp61s0 IPv4 EPSON XP-830 Series                           Web Site             local
+ wlp61s0 IPv6 EPSON XP-830 Series                           PDL Printer          local
+ wlp61s0 IPv4 EPSON XP-830 Series                           PDL Printer          local
+ wlp61s0 IPv6 EPSON XP-830 Series                           UNIX Printer         local
+ wlp61s0 IPv4 EPSON XP-830 Series                           UNIX Printer         local
+ wlp61s0 IPv6 5c:1d:d9:8f:a4:05@fe80::5e1d:d9ff:fe8f:a405   _apple-mobdev2._tcp  local
+ wlp61s0 IPv4 5c:1d:d9:8f:a4:05@fe80::5e1d:d9ff:fe8f:a405   _apple-mobdev2._tcp  local
+ wlp61s0 IPv4 Chromecast-Ultra-a41f56bb802c5975b2ecb845394ab75d _googlecast._tcp     local
+ wlp61s0 IPv4 a41f56bb-802c-5975-b2ec-b845394ab75d          _googlezone._tcp     local

来自树莓派：

+  wlan0 IPv6 EPSON XP-830 Series                           Internet Printer     local
+  wlan0 IPv4 EPSON XP-830 Series                           Internet Printer     local
+  wlan0 IPv6 EPSON XP-830 Series                           Secure Internet Printer local
+  wlan0 IPv4 EPSON XP-830 Series                           Secure Internet Printer local
+  wlan0 IPv4 5c:1d:d9:8f:a4:05@fe80::5e1d:d9ff:fe8f:a405   _apple-mobdev2._tcp  local
+  wlan0 IPv6 5c:1d:d9:8f:a4:05@fe80::5e1d:d9ff:fe8f:a405   _apple-mobdev2._tcp  local
+  wlan0 IPv6 EPSON XP-830 Series                           _privet._tcp         local
+  wlan0 IPv4 EPSON XP-830 Series                           _privet._tcp         local
+  wlan0 IPv4 a41f56bb-802c-5975-b2ec-b845394ab75d          _googlezone._tcp     local
+  wlan0 IPv4 EPSON XP-830 Series                           UNIX Printer         local
+  wlan0 IPv4 EPSON XP-830 Series                           PDL Printer          local
+  wlan0 IPv4 EPSON XP-830 Series                           Web Site             local
+  wlan0 IPv4 EPSON XP-830 Series                           Microsoft Windows Network local
+  wlan0 IPv4 EPSON XP-830 Series                           _scanner._tcp        local
+  wlan0 IPv4 EPSON XP-830 Series                           _uscan._tcp          local
+  wlan0 IPv6 EPSON XP-830 Series                           UNIX Printer         local
+  wlan0 IPv6 EPSON XP-830 Series                           PDL Printer          local
+  wlan0 IPv6 EPSON XP-830 Series                           Web Site             local
+  wlan0 IPv6 EPSON XP-830 Series                           Microsoft Windows Network local
+  wlan0 IPv6 EPSON XP-830 Series                           _scanner._tcp        local
+  wlan0 IPv6 EPSON XP-830 Series                           _uscan._tcp          local
+  wlan0 IPv4 Chromecast-Ultra-a41f56bb802c5975b2ecb845394ab75d _googlecast._tcp     local

有人能帮我吗？

谢谢

Answer 1

设备需要被命名为name.local

Working局域网设置

• LAN: 2* Mac，1*网络附加打印机，2* VM (Ubuntu 20.04)，1* pi
• Ubuntu和pi正在将avahi-daemon作为一种服务运行：$ sudo服务Avahi -守护进程状态avahi-daemon.service -avahi mDNS/DNS-mDNS加载: loaded (/lib/systemd/system/avahi-daemon.service；已启用；供应商预置:已启用) active (运行)active(运行)自清华2020-07-02 12:00:59 UTC；7h左TriggeredBy: avahi-daemon.socket主PID: 784 (avahi-守护进程)状态：“avahi-守护进程0.7启动”。任务:2(限制: 1069)内存: 1.3M CGroup: /system.片/avahi-daemon.service├─784 avahi-守护进程:运行└─828 avahi-守护进程: chroot
• 所有的机器都可以像name.local和ping printer.local那样互相联系。
• avahi-browse只安装在一个VM上，没有列出局域网上的所有设备

Answer 2

安装sudo apt-get install avahi-autoipd对我起了作用。

avahi-autoipd主要用于缺乏DHCP服务器的ad网络中.