OpenVAS NTV Sync plugin updates

[XtremuZ]

I'm having a problem updating it
It says "Error: rsync failed. Your NVT collection might be broken now."
Firewall? ..I'm using a domain for downloads, and that's blocking me.. How can i define the proxy in the Konsole, like I had to do on Firefox?

Ty

[XtremuZ]

OpenVAS NVT Sync $

Configured NVT Feed: rsync://rsync.openvas.org:/nvt-feed
Synchronized into: /usr/local/lib/openvas/plugins

Searching for required system tools ...
Synchonizing NVTs via RSYNC ...
rsync: failed to connect to rsync.openvas.org: Connection timed out (110)
rsync error: error in socket IO (code 10) at clientserver.c(122) [receiver=3.0.3]
Error: rsync failed. Your NVT collection might be broken now.

please anyone?
edit: already used the "export" command and still not working with this matter