Package: unbound
Version: 1.4.20-1
Severity: normal
Tags: upstream

Arguably a problem with ifupdown (#705996), unbound fails to bind an
IPv6 socket that is "tentative":

  [1377457127] unbound[2694:0] error: can't bind socket: Cannot assign 
requested address
  [1377457127] unbound[2694:0] debug: failed address 2001:a60:f0fb::1 port 53
  [1377457127] unbound[2694:0] fatal error: could not open ports 

As a result, unbound fails to start.

As long as there are other sockets (v4 or v6) to bind to, unbound
should just start with those, and monitor the ones it failed to bind
on startup, keep retrying until success. See ntpd for an example of
a daemon that does this right.

-- System Information:
Debian Release: jessie/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.10-rc7-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_NZ, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages unbound depends on:
ii  adduser         3.113+nmu3
ii  libc6           2.17-92
ii  libevent-2.0-5  2.0.21-stable-1
ii  libgcc1         1:4.8.1-9
ii  libldns1        1.6.16-1
ii  libpython2.7    2.7.5-7
ii  libssl1.0.0     1.0.1e-3
ii  openssl         1.0.1e-3
ii  unbound-anchor  1.4.20-1

unbound recommends no packages.

unbound suggests no packages.

-- Configuration Files:
/etc/unbound/unbound.conf changed [not included]

-- no debconf information


-- 
 .''`.   martin f. krafft <madduck@d.o>      Related projects:
: :'  :  proud Debian developer               http://debiansystem.info
`. `'`   http://people.debian.org/~madduck    http://vcs-pkg.org
  `-  Debian - when you have better things to do than fixing systems

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