Looking for logging into the Jenkins Redirect site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Jenkins Redirect site. After that you can login as usual with your login credentials.
https://issues.jenkins-ci.org/browse/JENKINS-14313
https://issues.jenkins-ci.org/browse/JENKINS-48083
https://issues.jenkins-ci.org/browse/JENKINS-31384
https://groups.google.com/d/topic/jenkinsci-dev/Tr1Ln3VK2g0
https://wiki.jenkins.io/display/JENKINS/GitLab+OAuth+Plugin
https://wiki.jenkins.io/display/JENKINS/Google+Login+Plugin
https://wiki.jenkins.io/display/JENKINS/GitHub+OAuth+Plugin
https://serverfault.com/questions/873796/running-jenkins-with-apache-at-jenkins
https://stackoverflow.com/questions/10212543/jenkins-with-github-and-oauth-stuck-in-redirect-loop-on-login
https://github.com/openshift/jenkins-openshift-login-plugin/blob/master/README.md
https://docs.bitnami.com/installer/apps/jenkins/administration/force-https-apache/
https://exchange.xforce.ibmcloud.com/vulnerabilities/142978
https://linuxacademy.com/community/posts/show/topic/21533-no-redirect-to-unlock-jenkins-page-after-selinux-setup