On 2/20/2016 5:19 PM, Curtis Maurand wrote:
On 2/20/2016 1:46 PM, Viktor Dukhovni wrote:
On Sat, Feb 20, 2016 at 01:37:39PM -0500, Curtis Maurand wrote:
Nothing is chrooted. resolv.conf is world readable. Wietse's program
returns a valid address. It might not match the reverse, but it did return
an address.
# ./getaddr delivery.mailspamprotection.com
Hostname: delivery.mailspamprotection.com
Addresses: 108.163.228.171
There's your problem, it is supposed to return *all* the addresses. On
my system:
$ ./getaddrinfo delivery.mailspamprotection.com
Hostname: delivery.mailspamprotection.com
Addresses: 108.163.220.52 108.163.201.229 69.175.69.94
108.163.204.150 198.143.161.10 108.163.201.230 96.127.190.5 184.154.58.227
198.143.161.21 184.154.48.173 198.143.161.29 69.175.69.92 108.163.243.190
96.127.190.4 198.143.161.30 108.178.24.182 108.163.243.188 108.163.228.171
69.175.69.93 184.154.208.34 184.154.208.36 96.127.176.253 96.127.190.2
198.143.161.27 108.163.220.54 198.143.161.11 108.163.228.170 198.143.161.13
184.154.58.230 108.163.243.189 108.163.228.174 108.163.201.228 108.178.24.171
108.163.201.226 108.178.24.181 108.163.201.227 184.154.208.37 108.178.24.174
198.143.161.12 184.154.48.171 96.127.176.250 108.163.243.186 108.178.24.180
69.175.69.90 108.163.243.187 108.163.228.172 96.127.176.252 184.154.177.50
184.154.48.172 108.163.204.148 198.143.161.28 108.163.204.146 184.154.208.35
108.163.204.149 96.127.190.6 69.175.69.91 184.154.58.226 108.163.228.173
108.178.24.173 108.178.24.178 96.127.176.254 198.143.161.18 184.154.48.174
198.143.161.20 184.154.58.229 1
08.163.220.51 96.127.176.251 108.163.220.50 108.178.24.170 108.163.220.53
198.143.161.22 184.154.208.38 184.154.48.170 184.154.58.228 108.178.24.172
198.143.161.14 108.178.24.179 198.143.161.19 108.163.204.147 198.143.161.26
96.127.190.3
If your getaddrinfo returns only the first address, it is busted.
Perhaps this is controlled via /etc/hosts.conf:
http://www.linfo.org/etc_host_conf.html
/etc/hosts.conf:
multi on
That said. Since the unit has been updated, but not rebooted, I may need to
reboot to get the kernel fix. Ubuntu does, at least, backport fixes.
The getaddrinfo issue is not resolved via a kernel fix, it is
addressed via a glibc fix.
interesting. on my 12.04 mail server it works correctly. on the
14.04 server it is not. both have "multi on" set. I fired up another
virtual machine with 14.04 installed and that one works fine. As a
work around, I've set my mx to the 12.04 machine that works with a
transport command that sends the mail to the host that should be
receiving the mail. the machine that is not working right claims to
not have any updates available, thought the getaddrinfo() has been
patched. frustrating. Thank you for your help. The problem appears
to not be postfix.
The problem was in the /etc/nsswitch.conf.
I changed the line
hosts: files dns
to
hosts: dns files
and that solved the trouble.
--
Curtis Maurand
cur...@maurand.com <mailto:cur...@maurand.com>
207-252-7748
