SAML Page gone because of Lets Encrypt

Hi,

i tried installing the Lets Encrypt App from the App Store. After successfully installing the app and successfully getting a LE cert for my fqdn hostname the webpage for the SAML URL is gone and I get an error 404 when trying to use a saml login from my nextcloud.

Yes, i also restarted the apache2 manually after the certification probing.
I can reproduce the error:

  • removing the LE App, restarting apache2 => now the saml page works again
  • installing the LE app again (getting cert, restarting apache2 again) => now with the right cert, but saml login page throws the error 404.

Log from ucr commit after installing the LE app:

root@ns1:/var/www# ucr commit
File: /etc/heimdal-kdc/kdc.conf
File: /var/www/univention/languages.json
File: /etc/security/packetfilter.d/10_univention-firewall_start.sh
File: /etc/security/access-ppp.conf
File: /usr/lib/univention-portal/config/config.json
File: /etc/default/docker
File: /etc/pam.d/other
File: /etc/security/access-su.conf
File: /var/www/robots.txt
File: /etc/simplesamlphp/univentiontheme/dictionaries/login.translation.json
File: /etc/apache2/mods-available/ssl.conf
File: /etc/pam.d/su
File: /etc/apache2/ucs-sites.conf.d/ucs-sites.conf
File: /etc/apache2/sites-available/univention-server-overview.conf
File: /etc/logrotate.d/univention-config-registry-replog
File: /etc/apt/apt.conf.d/20secureapt
File: /etc/init.d/heimdal-kdc
File: /etc/pam.d/login
File: /etc/nscd.conf
Multifile: /etc/postfix/ldap.virtual_mailbox
File: /etc/network/if-up.d/bind9
Multifile: /etc/network/interfaces
File: /etc/dhcp/dhclient.conf
Module: create_portal_entries
File: /etc/apt/sources.list.d/20_ucs-online-component.list
File: /etc/logrotate.d/univention-directory-manager-rest
File: /etc/logrotate.d/univention-join
File: /etc/e2fsck.conf
File: /etc/nsswitch.conf
File: /etc/security/access-login.conf
File: /etc/security/access-rsh.conf
File: /etc/heimdal-kdc/kadmind.acl
File: /etc/logrotate.d/wtmp
File: /etc/default/apache2
File: /etc/apache2/sites-available/univention-portal.conf
File: /etc/postfix/sasl/smtpd.conf
File: /usr/share/univention-heimdal/check_cracklib.py
Multifile: /etc/simplesamlphp/metadata/saml20-idp-hosted.php
File: /usr/share/univention-web/js/umc/hooks.json
File: /usr/share/univention-management-console/oidc/oidc.json
File: /etc/default/ssh
File: /etc/univention/directory/reports/default/de_DE/header.rml
File: /etc/logrotate.d/univention-directory-reports
File: /etc/resolv.conf
Module: xkbKeyboard
WARNING: Unknown X keysym "dead_belowmacron"
WARNING: Unknown X keysym "dead_belowmacron"
WARNING: Unknown X keysym "dead_belowmacron"
WARNING: Unknown X keysym "dead_belowmacron"
Multifile: /etc/postfix/ldap.saslusermapping
File: /etc/cron.d/univention-monitoring-client
File: /etc/ssh/ssh_config
File: /etc/issue
File: /etc/dhcp/dhclient.conf
File: /etc/logrotate.conf
File: /etc/cron.d/univention-nagios
File: /usr/share/univention-management-console/modules/apps.xml
File: /etc/logrotate.d/univention-directory-listener
File: /etc/security/packetfilter.d/20_docker.sh
File: /etc/bash.bashrc
File: /etc/default/locale
File: /etc/plymouth/plymouthd.conf
update-initramfs: Generating /boot/initrd.img-4.19.0-26-amd64
I: The initramfs will attempt to resume from /dev/sda2
I: (UUID=03eeeb98-b700-4886-9598-39b665778a9d)
I: Set the RESUME variable to override this.
Multifile: /etc/apache2/sites-available/default-ssl.conf
File: /etc/apache2/ports.conf
File: /etc/cron.d/univention-mail-postfix
Multifile: /etc/postfix/ldap.groups
Multifile: /etc/simplesamlphp/metadata/saml20-sp-remote.php
File: /etc/cron.d/univention-delayed-account-activation
File: /etc/ntp.conf
File: /etc/docker/daemon.json
File: /etc/modprobe.d/vmgfx.conf
File: /etc/cloud/cloud.cfg.d/91-univention-cloud-init.cfg
File: /etc/default/univention-directory-notifier
File: /etc/systemd/system/bind9.service.d/10-configure-backend.conf
File: /etc/logrotate.d/univention-system-setup
File: /etc/univention/directory/reports/config.ini
File: /etc/init.d/networking
File: /etc/systemd/system/docker.service.d/http-proxy.conf
File: /etc/ssh/sshd_config
File: /etc/apache2/sites-available/univention-vhosts.conf
File: /etc/logrotate.d/univention-directory-notifier
File: /etc/default/ntpdate
File: /etc/locale.gen
Generating locales (this might take a while)...
  de_DE.UTF-8... done
  en_US.UTF-8... done
Generation complete.
File: /etc/cron.d/univention-updater-check
Multifile: /etc/pam.d/common-auth
File: /etc/mailname
File: /etc/apache2/ucs-sites.conf.d/univention-portal.conf
Multifile: /etc/postfix/ldap.sharedfolderlocal
File: /etc/security/access-other.conf
File: /etc/apt/sources.list.d/15_ucs-online-version.list
File: /etc/modprobe.d/nfs-kernel-lockd.conf
File: /etc/pam.d/common-account
File: /etc/univention/service.info/services/univention-appcenter.cfg
File: /etc/apache2/sites-available/univention-letsencrypt.conf
File: /etc/apt/apt.conf.d/61invoke
File: /etc/default/grub
Generating grub configuration file ...
Found background: /boot/grub/uniboot.png
Found background image: /boot/grub/uniboot.png
Found linux image: /boot/vmlinuz-4.19.0-26-amd64
Found initrd image: /boot/initrd.img-4.19.0-26-amd64
Found linux image: /boot/vmlinuz-4.19.0-25-amd64
Found initrd image: /boot/initrd.img-4.19.0-25-amd64
Found linux image: /boot/vmlinuz-4.19.0-24-amd64
Found initrd image: /boot/initrd.img-4.19.0-24-amd64
Found memtest86+ image: /memtest86+.bin
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
done
File: /etc/security/packetfilter.d/80_univention-firewall_policy.sh
File: /etc/default/nfs-kernel-server
File: /etc/modules
File: /etc/inputrc
Multifile: /etc/python2.7/sitecustomize.py
File: /usr/share/univention-management-console/modules/setup-certificate.xml
File: /etc/libnss-ldap.conf
Script: /etc/univention/templates/scripts/symlink-web-theme.sh
Script: /etc/univention/templates/scripts/univention-maintenance-mode-service
Warning: The file '/etc/apache2/sites-available/univention-proxy.conf' is not registered as an UCR template.
File: /etc/apache2/sites-available/univention.conf
File: /etc/selinux/config
Module: univention_blog
File: /etc/apt/apt.conf.d/80proxy
File: /etc/systemd/system/univention-bind-ldap.service
File: /etc/pam.d/cron
File: /etc/bind/named.conf.samba4
Multifile: /etc/simplesamlphp/authsources.php
File: /etc/cron.d/univention-home-mounter
File: /etc/apt/apt.conf.d/55user_agent
File: /etc/logrotate.d/univention-ssl
Multifile: /etc/hosts
File: /etc/cron.d/univention-system-stats
File: /etc/init.d/nagios-nrpe-server
File: /etc/sudoers.d/univention
File: /etc/security/access-rlogin.conf
File: /etc/security/packetfilter.d/20_rsyslog.sh
File: /etc/pam.d/smtp
Module: setup_oidc_rp
umc/oidc/issuer not set, nothing to do
File: /usr/share/univention-management-console/i18n/de/apps.mo
File: /etc/listfilter.secret
File: /etc/logrotate.d/univention-management-console
Multifile: /etc/postfix/ldap.canonicalsender
File: /etc/logrotate.d/rsyslog
File: /etc/apache2/conf-available/univention-system-setup.conf
File: /etc/networks
Multifile: /etc/postfix/ldap.sharedfolderremote
File: /etc/systemd/system/getty@.service.d/nottyreset.conf
File: /etc/univention/directory/reports/default/de_DE/footer.rml
File: /etc/ldap/sasl2/slapd.conf
File: /etc/cron.d/univention-pam
File: /etc/default/keyboard
Module: configure_umc_multiprocessing
File: /etc/lsb-release
File: /etc/security/access-sshd.conf
File: /etc/pam.d/ppp
File: /etc/systemd/system/univention-directory-listener.service.d/20_start_order.conf
File: /etc/logrotate.d/univention-appcenter
File: /etc/cron.d/univention-directory-policy
File: /etc/pam.d/sshd
Multifile: /etc/postfix/ldap.virtual
File: /etc/logrotate.d/listener-modules
Multifile: /etc/apache2/sites-available/000-default.conf
Multifile: /etc/postfix/ldap.virtualdomains
File: /etc/memcached_univention_saml.conf
Multifile: /etc/postfix/ldap.virtualwithcanonical
File: /etc/ldap/ldap.conf
File: /etc/aliases
Multifile: /etc/postfix/ldap.external_aliases
File: /etc/simplesamlphp/univentiontheme/dictionaries/errors.translation.json
Multifile: /etc/postfix/main.cf
File: /etc/default/stunnel4
File: /etc/apache2/sso-vhost.conf.d/csp.conf
File: /etc/stunnel/univention_saml.conf
File: /var/lib/univention-ldap/translog/DB_CONFIG
File: /etc/bind/named.conf
File: /etc/cron.d/univention-blocklist-clean-expired-entries
Multifile: /etc/pam.d/univention-management-console
File: /etc/postfix/tls_policy
File: /etc/modprobe.d/univention-blacklist.conf
File: /etc/default/univention-directory-listener
File: /etc/init.d/postfix
File: /etc/apache2/sites-available/univention.conf
Module: symlink_portal
File: /etc/apache2/sites-available/univention-saml.conf
File: /etc/network/if-down.d/bind9
File: /etc/security/access-sudo.conf
File: /etc/cron.d/univention-letsencrypt
Module: autostart
File: /etc/cron.d/univention-ucr-cronjobs
File: /etc/logrotate.d/univention-directory-manager
Multifile: /etc/postfix/ldap.distlist
File: /etc/security/limits.conf
File: /etc/apache2/sites-available/univention-udm.conf
File: /etc/rsyslog.d/univention-admin-diary-client.conf
File: /etc/security/access-chsh.conf
File: /etc/cron.d/univention-config-registry-backup
File: /etc/initramfs-tools/initramfs.conf
File: /etc/logrotate.d/univention-admindiary
File: /etc/security/access-screen.conf
File: /etc/default/nfs-common
File: /etc/logrotate.d/univention-portal
Multifile: /etc/postfix/ldap.sharedfolderlocal_aliases
File: /etc/pam_ldap.conf
File: /etc/logrotate.d/heimdal-kdc
File: /etc/nagios/nrpe.cfg
File: /etc/apache2/conf-available/univention-web.conf
Multifile: /etc/postfix/ldap.transport
File: /etc/init.d/slapd
File: /etc/logrotate.d/univention-maintenance
File: /boot/boot.msg
Module: setup_saml_sp
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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curl: (22) The requested URL returned error: 404 Not Found
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Try to download idp metadata (43/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (44/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (45/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (46/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (47/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (48/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (49/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (50/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (51/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (52/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (53/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (54/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (55/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (56/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (57/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (58/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (59/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
Try to download idp metadata (60/60)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
E: your request could not be fulfilled
try `univention-config-registry --help` for more information
root@ns1:/var/www# 

Does anyone also have this error upon installing Lets Encrypt?

Greetings
hasechris

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