WinSCP :: Understanding SSH: " On slow links, this may increase throughput, while in faster connections the added CPU overhead may actually result in slower transfers, particularly depending on the data type you’re transferring. Large text files may still benefit significantly, while binaries may transfer more slowly. You may want to experiment to find what works best in your situation. Compression may also improve security slightly, in part by rendering known cyphertext attacks more difficult and by providing less data for cryptanalysis."
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