trying https://www.mersenne.org/ftp_root/gimps/p95v308b15.source.zip
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   196  100   196    0     0    253      0 --:--:-- --:--:-- --:--:--   253
100 48.9M  100 48.9M    0     0  8182k      0  0:00:06  0:00:06 --:--:-- 10.0M