Choose the override file for the installed package:

PackageService defaults
RPM/etc/sysconfig/rundeckd
DEB/etc/default/rundeckd

Merge these properties into its existing RDECK_JVM_OPTS value:

RDECK_JVM_OPTS="-Dhttp.proxyHost=proxy.example.net -Dhttp.proxyPort=8080 -Dhttps.proxyHost=proxy.example.net -Dhttps.proxyPort=8080 -Dhttp.nonProxyHosts=localhost|127.*|*.internal.example"

Preserve the other startup options and apply through the normal service restart. The file affects the next JVM launch, not the running one. For permitted public-service calls, the HTTP proxy list supplies candidates for the HTTP proxy host and port fields. Rundeck documents these package override locations; editing /etc/rundeck/profile directly can be overwritten on upgrade.

Use this route for clients honoring Java proxy properties inside the Rundeck JVM. A job's external program or plugin-owned transport can need another input. Identify the failed operation before applying the service defaults to it.

Erthyglow kevrennek