10/12/2020 10:50 - CEDIA FOSS Mirrors via CentOS-mirror wrote: 10/07/2020 21:50 - TUNA Mirror Team wrote: Hi, all On our servers, the following UAs are blocked and similar repeated requests against large iso files can be rejected: map $http_user_agent $isbadbrowser { default 0; "~*Mozilla/5\.0 \(Linux; Android\)" 1; "~*Chrome/49\.0\.2623\.87" 1; "~*Firefox/3.6.3" 1; } According to our experience of operating largest mirror site in China, such User-Agent list is able to protect against most of those traffic, IP blocking is not needed and the list didn't require an update for several years. Great to know. I have just implemented it with your suggestion. I will monitor the traffic for 2-3 days and see if it works. hi just to let know that the traffic during this week has been lower than last week when we blocked CN and way lower than 2 weeks ago when we have no control implemented. So to sum it up: as suggested by TUNA team, by blocking queries based on misbehaved user-agents we were able to lower the traffic in a significant amount (25-30% lower than 2 weeks ago). regards epe thanks epe -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-mirror/attachments/20201015/bc0f44a3/attachment-0005.html>