解决网络问题

使用这些过程来：

• 配置防火墙设置以便 Unity 可以访问 Package Manager 注册表服务器。
• Configure your proxy server, either by setting environment variables or adding custom certificate authority (CA) certificates.

配置防火墙

将以下域名添加到防火墙的允许域列表中：

• packages.unity.com
• download.packages.unity.com
• upm-cdn.unity.com（对于中国的地点，则是 upm-cdn-china.unitychina.cn）

这样可确保 Unity Package Manager 可以使用 HTTPS 访问这些域名。

提示：请参阅操作系统的帮助以了解如何将域名添加到防火墙的安全列表中。

配置代理服务器

When using a proxy server, configure the HTTP_PROXY and HTTPS_PROXY environment variables for the Unity Package Manager to use when performing requests against the Unity package registry. For more information, refer to Use environment variables to identify your proxy server.

You can set these variables globally (either system or user variables) according to your operating system. Alternatively, you can create a command file to set these environment variables and launch the Hub.

For environments where you are behind a proxy server using a certificate that Package Manager doesn’t recognize, you can configure a custom certificate authority.

自定义证书颁发机构

In some organizations, users can only access the internet through a proxy server. Some proxies unpack the HTTPS content and repack it with their own SSL certificate. Unity Package Manager’s underlying HTTPS layer sometimes rejects these certificates because it doesn’t recognize the certificate authority that emitted them. When this happens, the Package Manager treats the connection as a possible machine-in-the-middle attack (MITM). This means that you can’t use many features in Unity, including the Package Manager, unless you configure additional SSL certificate authorities to allow these certificates.

要配置其他 SSL 证书颁发机构，请执行以下操作：

1. Locate the upmconfig.toml global configuration file. If the file doesn’t already exist, create an empty text file.

2. Create a text file with one or more certificates for custom certificate authorities. The file must consist of one or more trusted certificates in the Privacy-Enhanced Mail (PEM) format. For example:

   -----BEGIN CERTIFICATE-----
   MIIC+zCCAeOgAwIBAgIJAO0U6hVJnbvjMA0GCSqGSIb3DQEBBQUAMBQxEjAQBgNV
   BAMMCWxvY2FsaG9zdDAeFw0xOTAzMTIwMTIxMzRaFw0yOTAzMDkwMTIxMzRaMBQx
   (additional lines omitted for conciseness)
   LFwHSUdqk0lJK4b0mCwyTHNvYO1IDziE5EKwfuaKVgOa62iCHVahgIVa+een4EfS
   hCCr3M3cq11Mi+mnRi1scxxrOno4OEEChWg2szZLlxBrkVJllrrq620XJ6RLB/8=
   -----END CERTIFICATE-----
   -----BEGIN CERTIFICATE-----
   MIIDtzCCAp+gAwIBAgIQDOfg5RfYRv6P5WD8G/AwOTANBgkqhkiG9w0BAQUFADBl
   MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
   (additional lines omitted for conciseness)
   H2sMNgcWfzd8qVttevESRmCD1ycEvkvOl77DZypoEd+A5wwzZr8TDRRu838fYxAe
   +o0bJW1sj6W3YQGx0qMmoRBxna3iw/nDmVG3KwcIzi7mULKn+gpFL6Lw8g==
   -----END CERTIFICATE-----
   

3. 尽管 Unity 支持文件系统上的任何位置，请尽量将此文件与全局配置文件保存在同一个文件夹中。

4. In the global configuration file, add the caFile key and set its value as an absolute file path to your PEM file. Important: When setting Windows paths in TOML files, use forward slashes (/) or double backslashes (\\). Don’t use single backslashes (\) because they’re special characters which mark escape sequences and can cause TOML parsing errors.

   Windows example

   caFile = "C:\\ProgramData\\Unity\\config\\cert.pem"
   

   macOS and Linux example

   caFile = "/etc/cert.pem"
   

其他资源

• Using Unity through web proxies