我已在 osX 服务器上启用了缓存服务器，因为它亮起了绿灯。在此阶段，我从应用商店下载了一个应用程序，但下图中缓存显示无。此 osX 服务器上还有其他需要配置的东西吗？
/Library/Server/Caching/Logs/Debug.log 中的日志显示：
2015-12-08 10:57:19.989 Request for configuration from http://suconfig.apple.com/resource/registration/v1/config.plist succeeded
2015-12-08 10:57:20.000 Registering with local address: localIPAddress (Masked for security) (100 Mbit/sec wired); on AC power: yes; cache size: ~350 GB; capabilities: im,ns,pc,qp,sc; portable: no
2015-12-08 10:57:20.368 Cleanup succeeded.
2015-12-08 10:57:22.440 Request for registration from https://lcdn-registration.apple.com/lcdn/register succeeded
2015-12-08 10:57:22.440 Got back public IP *.*.*.* (Masked for security)
2015-12-08 10:57:22.451 This server has 0 peers
在服务器日志中我可以看到：
Dec 8 11:27:40 MyOSXServer AssetCache[94461]: Caching Server started
Dec 8 11:27:40 MyOSXServer AssetCache[94461]: CoreData: Failed to load optimized model at path '/Applications/Server.app/Contents/ServerRoot/usr/libexec/AssetCache/AssetCache.momd/AssetCache-v5.omo'
XServer AssetCache[94461]: Registration succeeded. Resuming server.
应用商店中有人请求更新server.app，EL Capitan我更新了它，但到目前为止没有任何反应。我在Log部分收到以下错误：
'/Applications/Server.app/Contents/ServerRoot/usr/libexec/AssetCache/AssetCache.momd/AssetCache-v5.omo'
XServer AssetCache[94461]: Registration succeeded. Resuming server.
在 osX 服务器上，防火墙设置为关闭。我是否也应该在外部 firefall（公共 IP 地址）上打开此端口？