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pyrmont's avatar
pyrmont
Guide
Feb 22, 2018
Solved

MD5-Signed Certificate Warning with OpenVPN on iOS

As of version 1.2.8 of the OpenVPN app on iOS, OpenVPN issues the following warning: > WARN TLS: received certificate signed with MD5. > Please inform your admin to upgrade to a > stronger algori...
  • Babylon5's avatar
    Babylon5
    Aug 19, 2015
    On an asymmetrical link, where the upload rate is a fraction of the download rate it’s possible to choke the network with upload data. So for example with a large TCP download where packets are acknowledged by the receiving computer then there can be a corresponding high upload of data, and if the upload rate limit is significantly lower that the download rate limit then the Internet connection can grind to a halt. The first few paragraphs of this .pdf might explain better than I can; http://www.sigcomm.org/sites/default/files/ccr/papers/2012/January/2096149-2096158.pdf