Investigating high traffic volume affecting services on www.ibiblio.org
The b-greek forum is still offline as we continue to investigate and apply mitigations.
The intentional disruption of service to the b-greek forum has been removed, and we are monitoring for stability of www.ibiblio.org collections.
Over the last 18 hours, a steady but very large stream of synthetic traffic has caused significant downtime for most visitors to collections under the www.ibiblio.org. We believe we have characterized that stream and adapted our systems to carry what we can’t deny, and deny what we can as quickly as we are able.
Depending on the source and motives behind this traffic, we may have to adjust again. For now, we are monitoring and prepared to make more changes if necessary.
There are problems accessing www.ibiblio.org looks like IPv6 connection resets again.
C:\Users\kersh>curl -v -6 http://www.ibiblio.org/wcom/podcast/mp3s/WeeklyDoseOf/WeeklyDoseOf-2026-04-03.mp3 --output test.mp3
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 0* Host www.ibiblio.org:80 was resolved.
- IPv6: 2606:f640:6000:321:0:bad:cafe:23
- IPv4: (none)
- Trying [2606:f640:6000:321:0:bad:cafe:23]:80…
- Established connection to www.ibiblio.org (2606:f640:6000:321:0:bad:cafe:23 port 80) from 2600:1700:f91:2940:402f:e9b8:b654:a5e6 port 49700
- using HTTP/1.x
GET /wcom/podcast/mp3s/WeeklyDoseOf/WeeklyDoseOf-2026-04-03.mp3 HTTP/1.1
Host: www.ibiblio.org
User-Agent: curl/8.18.0
Accept: /
-
Request completely sent off
0 0 0 0 0 0 0 0 00:19 0* Recv failure: Connection was reset -
closing connection #0
curl: (56) Recv failure: Connection was reset
C:\Users\kersh>
The outage is not isolated to my computer. Several of our listeners are indicating the stream players they use are failing. I am seeing ipv4 resolves without issue, but all the ipv6 connections are failing. I can execute curl commands, or use the browser and duplicate the err_connection_reset. I’ve noted phone connected devices using Safari are working. Everything else is failing to connect.
Below are examples using a basic curl command.
C:\Users\kersh>curl -v -4 www.ibiblio.org
- Host www.ibiblio.org:80 was resolved.
- IPv6: (none)
- IPv4: 152.19.134.40
- Trying 152.19.134.40:80…
- Established connection to www.ibiblio.org (152.19.134.40 port 80) from 104.185.77.45 port 60542
- using HTTP/1.x
GET / HTTP/1.1
Host: www.ibiblio.org
User-Agent: curl/8.18.0
Accept: /
- Request completely sent off
< HTTP/1.1 301 Moved Permanently
< content-length: 0
< location: https://www.ibiblio.org/
< - Connection #0 to host www.ibiblio.org:80 left intact
C:\Users\kersh>curl -v -6 www.ibiblio.org
- Host www.ibiblio.org:80 was resolved.
- IPv6: 2606:f640:6000:321:0:bad:cafe:23
- IPv4: (none)
- Trying [2606:f640:6000:321:0:bad:cafe:23]:80…
- Established connection to www.ibiblio.org (2606:f640:6000:321:0:bad:cafe:23 port 80) from 2600:1700:f91:2940:402f:e9b8:b654:a5e6 port 60545
- using HTTP/1.x
GET / HTTP/1.1
Host: www.ibiblio.org
User-Agent: curl/8.18.0
Accept: /
- Request completely sent off
- Recv failure: Connection was reset
- closing connection #0curl: (56) Recv failure: Connection was reset