> From: Mark Wielaard <[email protected]> > Sent: Monday, May 18, 2026 5:45 PM > > Hi Haochen, > > On Mon, May 18, 2026 at 08:10:10AM +0000, Jiang, Haochen via Gcc wrote: > > Recently I am building gcc on AWS systems. However, when I am > > trying to download gcc prereq, I got: > > > > $ ./contrib/download_prerequisites > > https://gcc.gnu.org/pub/gcc/infrastructure/gmp-6.3.0.tar.bz2: > > 2026-05-18 08:02:11 ERROR 403: Forbidden. > > error: Cannot download gmp-6.3.0.tar.bz2 from > https://gcc.gnu.org/pub/gcc/infrastructure/ > > > > This did not happen on weekends. It just happens today. > > > > Is some AWS IP prohibited due to bot attack just today? Or I met > > bad luck (I believe not since two AWS nodes reporting to me that)? > > Yes, AWS is problematic because they sometimes host botnets which we > might have to block when they get past our other defenses. > > At the moment the following AWS related ip/blocks are in place: > > # Specific Amazon AWS ips that hammer /git > 35.89.156.172 > 34.218.210.115 > # 2026-01-28 git-over-http DOS, AWS > 35.161.163.0/24 > 54.213.72.0/24 > 52.36.47.0/24 > # AWS git history/blame scraper > 35.80.0.0/12 > 34.192.0.0/10 > 52.0.0.0/10 > 54.200.0.0/14 > # Amazon Technologies Inc. (AT-88-Z) > 13.24.0.0/13 > # Amazon Data Services NoVa (ADSN-1) > 100.24.0.0/13 > > If you are using one of these ip/ranges for normal usage and not > scraper bots, then let us know and we'll remove the blocks. >
Oh I c. Let's keep those for now if that is the case since bot is really annoying. I could change my script to upload those prereq from local machines instead of downloading on those remote machines. Thx for your help! Thx, Haochen
