New Public IPv4 for Jenkins Mirrors

Contributing Infrastructure
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The Jenkins project provides a download mirror infrastructure allowing to download Jenkins packages and plugins from a download server close to your location.

It provides a “HTTP redirector” service hosted behind the domains get.jenkins.io, mirrors.jenkins.io and mirrors.jenkins-ci.org which has a new public IP since the 12 June 2023.

Please update your DNS servers and firewall rules to the new IP 20.119.232.75 20.7.178.24 if you have a restricted environment.

The former redirector service and its previous IPv4 will be decommissioned the 27 of June 2023.

More details in https://github.com/jenkins-infra/helpdesk/issues/3351.

[edit] These IP changed again, as described in Post Mortem of the 7th July 2023 Jenkins Infrastructure Outage. The post here is up to date

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As far as I understand it, users that resolve the IP addresses of those hosts with a DNS server should already be switched to the new addresses. This is a reminder for those who may have made the mistaken choice of embedding an IP address in a configuration, instead of using a hostname.

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[edit] These IP changed again, as described in Post Mortem of the 7th July 2023 Jenkins Infrastructure Outage. The post here is up to date.