OpenSUSE 多播不工作？
我正在尝试通过受信任的 java applet 在 OpenSuSE 上进行多播 dns<->，但我在网络上查找任何内容的尝试都被默默阻止了！可能是什么问题？
I'm trying to do multicast dns on OpenSuSE through a trusted java applet<->, and my attempts to find anything on the network are silently blocked! What could be the problem?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
OpenSUSE 在安装过程中不会告诉您，但它默认启用防火墙来阻止多播操作。您必须禁用两个防火墙服务才能使多播正常工作，
即
OpenSUSE won't tell you during installation, but it enabled a firewall by default that will block multicast operations. You will have to disable the two firewall services to get multicast working properly, namely
and
原因确实是防火墙（正如 Stefan Kendall 所指出的）。如果您希望在不禁用防火墙的情况下修复此问题，请使用与默认区域不同的区域。例如，“home”区域没有此限制（或者至少我安装的 OpenSUSE Tumbleweed 没有）。我相信 NetworkManager 应该允许您基于每个网络选择防火墙区域。
编辑：“内部”区域也应该起作用。 “YaST 防火墙”可用于确认哪些区域可以工作，并在其他区域中启用它（查找“mdns”）。
The reason is indeed the firewall (as pointed out by Stefan Kendall). If you wish to fix this without disabling the firewall, use a different zone to the default. The "home" zone, for example, does not have this restriction (or at least my install of OpenSUSE Tumbleweed did not). I believe that NetworkManager should allow you to select a firewall zone on a per-network basis.
EDIT: the "internal" zone should also work. "YaST Firewall" can be used to confirm which zones will work and also enable it in other zones (look for "mdns").