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...ny way to test whether a connection can be opened? Analogous to isOpen something like canOpen... Or would I want to look into the error handling options? By the way, the data is the internet volume used so far, which I want to track regularly (on every R-Start via Rprofile). My brother (a computer schientist in progress) did not know a solution, so I set out to try this with R - which I got to work fine (except the above mentioned). "R beats java", I told him, to which he responded nothing ;-) Isn't it amazing, what one can do with R? Thanks ahead, Berry Boessenkool [[alt...