Yup. And if I understand correctly, "mirrors" are mirrors -- i.e. they will all contain exactly the same content once any updates have a chance to percolate through. Hence, choosing just one each of a CRAN and Bioconductor mirror should suffice, with perhaps a backup should one or the other go down for some reason. For security reasons, I would stay away from Github or any other repository not listed in the official CRAN listing that Chris provided. As I understand it, all of these mirrors are self-contained and would not contain dependencies that go outside CRAN. **
** If any of the above is wrong or requires clarification, please post a correction. ** Cheers, Bert On Thu, Nov 20, 2025 at 9:12 AM Chris Ryan <[email protected]> wrote: > That's a tall order. > > I'm no expert, but I believe you can specify what CRAN mirror to use > when obtaining packages. I don't know if an institution could restrict a > user to using just one of them. > > Here is a list of CRAN mirrors: > > https://cran.r-project.org/mirrors.html > > I've never used Bioconductor, but here is a list of mirrors: > > https://bioconductor.org/about/mirrors/ > > --Chris Ryan > > > Jyoti Prajapati wrote: > > Dear R Team, > > > > I am currently setting up R in the Bank of Baroda environment, and as > part > > of the security process, I need to request whitelisting of all > URLs/domains > > required for installing R packages (including dependencies). > > > > To complete this request, I kindly ask you to please share the *full list > > of URLs, domains, CRAN/Bioconductor mirrors, GitHub links, and any other > > repositories* that R connects to during installation and updating of > > packages. > > > > Once I receive the list, I will forward it to the Network/IT Security > team > > for whitelisting. > > > > Requesting your support in providing this information at the earliest. > > > > Thank you. > > > > Regards, > > *Jyoti Prajapati* > > Manager – Model Validation > > Risk Management Department > > Bank of Baroda > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > [email protected] mailing list -- To UNSUBSCRIBE and more, see > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide > https://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > > > ______________________________________________ > [email protected] mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > https://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide https://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
