Bug#969784: cups: Cups fails to bind to a network ip address after system reboot

[Pavel Shamis <pasharesearch@gmail.com>]

Package: cups
Version: 2.2.10-6+deb10u3
Severity: important

Dear Maintainer,

Cups fails to bind to a network ip address after system reboot with
error "Unable to open listen socket for address XXX.XXX.XXX.XXX:631 -
Cannot assign requested address." If the services restarted manually
after reboot is works as usual. Similar issues was reported to redhat
while ago https://bugzilla.redhat.com/show_bug.cgi?id=970809 . To
workaround the issues I added "After=network.target" to cups.service.
With the dependency set it works with no problem. I suggest to add this
dependency by default.

-- System Information:
Debian Release: 10.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-10-amd64 (SMP w/12 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages cups depends on:
ii  cups-client            2.2.10-6+deb10u3
ii  cups-common            2.2.10-6+deb10u3
ii  cups-core-drivers      2.2.10-6+deb10u3
ii  cups-daemon            2.2.10-6+deb10u3
ii  cups-filters           1.21.6-5
ii  cups-ppdc              2.2.10-6+deb10u3
ii  cups-server-common     2.2.10-6+deb10u3
ii  debconf [debconf-2.0]  1.5.71
ii  ghostscript            9.27~dfsg-2+deb10u4
ii  libavahi-client3       0.7-4+b1
ii  libavahi-common3       0.7-4+b1
ii  libc6                  2.28-10
ii  libcups2               2.2.10-6+deb10u3
ii  libcupsimage2          2.2.10-6+deb10u3
ii  libgcc1                1:8.3.0-6
ii  libstdc++6             8.3.0-6
ii  libusb-1.0-0           2:1.0.22-2
ii  poppler-utils          0.71.0-5
ii  procps                 2:3.3.15-2

Versions of packages cups recommends:
ii  avahi-daemon                     0.7-4+b1
ii  colord                           1.4.3-4
ii  cups-filters [ghostscript-cups]  1.21.6-5
ii  printer-driver-gutenprint        5.3.1-7

Versions of packages cups suggests:
ii  cups-bsd                                   2.2.10-6+deb10u3
pn  cups-pdf                                   <none>
ii  foomatic-db-compressed-ppds [foomatic-db]  20181217-2
ii  hplip                                      3.18.12+dfsg0-2
ii  printer-driver-hpcups                      3.18.12+dfsg0-2
pn  smbclient                                  <none>
ii  udev                                       241-7~deb10u4

-- debconf information:
  cupsys/backend: lpd, socket, usb, snmp, dnssd
  cupsys/raw-print: true