Hi. a query, by default the update of greenbone-nvt-sync, uses rsync, as it could be changed so that it uses by default; wget or curl.
since we validate the exit port and use the 873 to the ip: 89.146.224.58
The GCE Feed is only via RSYNC available. So curl or wget does not offer delta transfers.
Rsync will always be the preferred way of synchronizing the feeds.
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