Symptoms:

An issue has been identified when using the 'httpclient.proxy-autodetect=false' setting to force the system to use the HTTP proxy settings in core.proxy.server.properties and using a proxy server which authenticates via LDAP. When an electronic update is scheduled, the update fails with the following shown in core.update.log:

2019-01-11 11:38:57 ERROR [http-bio-8888-exec-8] [UpdateServiceImpl] java.net.UnknownHostException: updates.palamida.com
2019-01-11 11:38:57 ERROR [http-bio-8888-exec-8] [UpdateServiceImpl] Error checking for updates
com.palamida.appsec.BusinessException: Error download from HTTPS: updates.palamida.com
at com.palamida.appsec.service.impl.UpdateServiceImpl.downloadHTTPS(UpdateServiceImpl.java:1449)
at com.palamida.appsec.service.impl.UpdateServiceImpl.downloadFromUpdatesHTTPS(UpdateServiceImpl.java:1386)
at com.palamida.appsec.service.impl.UpdateServiceImpl.isManifestFileAvailable(UpdateServiceImpl.java:1216)
at com.palamida.appsec.service.impl.UpdateServiceImpl$$FastClassBySpringCGLIB$$33823c93.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)