folgende Konfiguration hat sich als gut herausgestellt:
anpassen /etc/squid/local.conf auf paedML_server:
#anpassungen für wcrafter
acl wscrafter dstdomain .worksheetcrafter.com
acl wscrafter1 dstdomain .getschoolcraft.com
acl wscrafter2 dstdomain .arbeitsblatt-profi.de
acl wscrafter3 dstdomain .eulenpost.ws
acl wscrafter4 dstdomain .www.getschoolcraft.com
acl wscrafter5 dstdomain .license.getschoolcraft.com
acl wscrafter6 dstdomain .license.worksheetcrafter.com
acl wscrafter7 dstdomain .tauschboerse.arbeitsblatt-profi.de
acl wscrafter8 dstdomain .materialboerse.worksheetcrafter.com
acl wscrafter9 dstdomain .printery.worksheetcrafter.com
acl wscrafter10 dstdomain .eulenpost.ws
acl wscrafter11 dstdomain .wsgo-code.de
acl wscrafter12 dstdomain .wsgo-user.de
acl wscrafter13 dstdomain .openclipart.org
acl wscrafter14 dstdomain .pixabay.com
acl wscrafter15 dstdomain .marketplace.worksheetcrafter.net
acl wscrafter16 dstdomain .downloads.worksheetcrafter.net
#
http_access allow wscrafter
http_access allow wscrafter1
http_access allow wscrafter2
http_access allow wscrafter3
http_access allow wscrafter4
http_access allow wscrafter5
http_access allow wscrafter6
http_access allow wscrafter7
http_access allow wscrafter8
http_access allow wscrafter9
http_access allow wscrafter10
http_access allow wscrafter11
http_access allow wscrafter12
http_access allow wscrafter13
http_access allow wscrafter14
http_access allow wscrafter15
http_access allow wscrafter16
danach systemctl restart squid