Proxy settings
If a proxy is used to connect to Planon, add the following parameters to the tanuki configuration file of the server that should communicate via the proxy:
Mandatory
wrapper.java.additional.<follow previous no.>=-Dhttp.proxyHost=<Proxy server host>
wrapper.java.additional.<follow previous no.>=-Dhttp.proxyPort=<Proxy server port>
Optional
When you use user name password authentication:
wrapper.java.additional.<follow previous no.>=-Dhttp.proxyUserName=<Proxy server username>
wrapper.java.additional.<follow previous no.>=-Dhttp.proxyPassword=<Proxy server password>
When you want to exclude communication from the proxy, for example the WebDAV server installed by Planon:
wrapper.java.additional.<follow previous no.>=-Dhttp.nonProxyHosts="localhost|127.0.0.1|*.theDomaintoExclude.com"
- for example "localhost|127.0.0.1|*.planon-fm.com"
* 
For details about the configuration, see Networking properties (https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/net/doc-files/net-properties.html).
If configured for the web server, disable the minimal httpClient in the remoting.xml located in \Server\tomcat-*\conf:
<httpClient>
<minimal>false</minimal>
</httpClient>
* 
If you want WebDAV to communicate via the proxy, user name password authentication is not supported for the proxy. You need to use another authentication method, such as IP or active directory.