Hello, me again... I tried to run reposync on CentOS with Zypper and DNF as backend. In both cases, I get these messages for http links: [Errno 14] curl#1 - "Protocol "b'http" not supported or disabled in libcurl". for https links: [Errno 14] curl#1 - "Protocol "b'https" not supported or disabled in libcurl". curl cli can download the sources without issues. I also tried a minimal pycurl script and it can download a https rpm file without issues. So it is not a setup issue. Not sure if i am at the right place but I cannot identify any potential issues in spacewalk/satellite_tools/download.py. The Urls seem to be passed properly. Are you aware of these issues or can pinpoint me where to look? Maybe the exact place that is calling/configuring pycurl to see what is passed? Thank you and best wishes, Stefan