Say you want to transfer a lot of data, and want some information about selecting a protocol...
Protocol Performance on 10BaseT or 100BaseT Performance on Gigabit Encrypted? Good for incremental transfers (transfer resumption) Progress report Works well in a pipeline? Stable?
NFS Poor. Note that reads are faster than writes Good, because it can take advantage of jumbo frames Typically not, but can be combined with mcrypt or similar to a limited extent No None but can be combined with reblock or similar to a limited extent Only as a source or sink, not both If you get the right client/server pair, it can be very stable. However, there have been many interoperability problems historically
rsh Good Can be rather poor, but perhaps if recompiled to use a larger block size it would be better Typically not, but can be combined with mcrypt or similar Quite good if combined with rsync Typically none. OK if combined with rsync. Good if combined with reblock or similar Yes Yes
ssh (OpenSSH) Good Poor. However, there are two or more sets of patches available for speeding it up somewhat (for example here). Yes, normally Quite good if combined with rsync Typically none. OK if combined with rsync. Good if combined with reblock or similar Yes Yes
ftp Good ? Typically not, but can be combined with mcrypt or similar If server and client support it, there is limited availability Traditionally poor, but modern ftp clients like tnftp (formerly lukemftp) are good Only as a source or sink, not both Yes
pnetcat Good Good - has an adjustable block size, maximizing the benefit of jumbo frames Typically not, but can be combined with mcrypt or similar No None unless combined with reblock or similar Can be a source and sink concurrently, but must be done as two different commands on the two different systems Yes, but is relatively untested code



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Timestamp: 2024-04-16 14:28:59 PDT

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