When perfoming an “apt-get upgrade” on your machine, and you have both PowerDNS and Plesk installed, you may encounter a cumbersome situation:<\/p>\n\n\n\n
Plesk automatically tries to reactivate bind9. However, bind9 and PowerDNS may be listening on the same UDP port (53). The best countermeasure against that is<\/p>\n\n\n\n
Additionally, Debian and PowerDNS aren’t really friends. The problem mentioned at https:\/\/github.com\/PowerDNS\/pdns\/issues\/4219<\/a> which is resolved with https:\/\/github.com\/PowerDNS\/pdns\/issues\/4219#issuecomment-234250149<\/a> still isn’t handled out of the box. So, additionally, you should comment the line<\/p>\n\n\n\n in \/lib\/systemd\/system\/pdns.service. This adjustment may get overwritten with each upgrade that you perform. Afterwards do a<\/p>\n\n\n\n If you forget to comment the line mentioned above, you may end up with the strange error message:<\/p>\n\n\n\n The article gives hints on how to properly re-adjust the Debian configuration, if both Plesk (with BIND\/Named) and PowerDNS are installed. It addresses the error message “Failed at step ADDRESS_FAMILIES spawning”.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-1162","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=\/wp\/v2\/posts\/1162","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1162"}],"version-history":[{"count":2,"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=\/wp\/v2\/posts\/1162\/revisions"}],"predecessor-version":[{"id":1167,"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=\/wp\/v2\/posts\/1162\/revisions\/1167"}],"wp:attachment":[{"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1162"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.schmoigl-online.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}sudo service bind9 stop<\/code>sudo service bind9 disable<\/code><\/p>\n\n\n\nRestrictAddressFamilies=AF_UNIX AF_INET AF_INET6<\/code><\/p>\n\n\n\nsudo systemctl daemon-reload
sudo service pdns restart<\/code><\/p>\n\n\n\npdns.service: Failed at step ADDRESS_FAMILIES spawning \/usr\/sbin\/pdns_server: Invalid argument<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"