Why shibboleth IdP idp-metadata.xml recommends 8443 for SOAP

Question

2.4.0 Shibboleth Identity Server的install.sh安装完成后，创建了idp-metadata.xml文件。为什么呢?使用标准HTTPS/443端口不够安全吗?

    <ArtifactResolutionService Binding="urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" Location="https://idp.example.com:8443/idp/profile/SAML1/SOAP/ArtifactResolution" index="1"/>
    <ArtifactResolutionService Binding="urn:oasis:names:tc:SAML:2.0:bindings:SOAP" Location="https://idp.example.com:8443/idp/profile/SAML2/SOAP/ArtifactResolution" index="2"/>
    <SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:SOAP" Location="https://idp.example.com:8443/idp/profile/SAML2/SOAP/SLO" />
    <AttributeService Binding="urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" Location="https://idp.example.com:8443/idp/profile/SAML1/SOAP/AttributeQuery"/>
    <AttributeService Binding="urn:oasis:names:tc:SAML:2.0:bindings:SOAP" Location="https://idp.example.com:8443/idp/profile/SAML2/SOAP/AttributeQuery"/>

谢谢,Tamas

Answer 1

使用Linux，像"tomcat"这样的非特权用户不能绑定1024以下的端口。前端负载均衡器(如Apache和Nginx)以root用户启动，绑定到特权端口，如端口80和端口443。常见的设置包括在非特权端口上运行Tomcat实例，如8080或8443，然后通过Apache或Nginx代理该端口。