[Pdns-users] How to debug / log more info about: pdns operation not permitted.
sjcjonker at sjc.nl
Thu Jun 16 01:41:29 UTC 2016
In my (small) home setup I have been running for a couple years pdns/pnds-recursor. The pdns with the gmysql backend.
Initially on ubuntu and recently on Centos7. In both instances I receive these, as shown below, syslog messages a couple times a day. The total amount of queries is low, as it's a home network.
Jun 15 04:12:03 emani pdns: Unable to send a packet to our recursing backend: Operation not permitted
Jun 15 04:59:04 emani pdns: Unable to send a packet to our recursing backend: Operation not permitted
A google and maillist search turned up some "Unable to send packet" but none with the reason "Operation not permitted"
Additionally I couldn't find documentation how to log these failed/denied queries.
No issue getting my hands dirty :-) and dig through logs (or code, but far from c expert), how to obtain some further logging why this is denied?
Current info on distro and version:
[emani ~]$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)
[emani ~]$ rpm -qi pdns
Name : pdns
Version : 3.4.8
Release : 1.el7
Install Date: Thu May 26 23:42:07 2016
Group : System Environment/Daemons
Size : 8561959
License : GPLv2
Signature : RSA/SHA256, Thu Feb 4 19:41:53 2016, Key ID 6a2faea2352c64e5
Source RPM : pdns-3.4.8-1.el7.src.rpm
Build Date : Wed Feb 3 18:59:43 2016
Build Host : buildvm-19-nfs.phx2.fedoraproject.org
[emani ~]$ /usr/sbin/pdns_server --version
Jun 16 03:31:11 PowerDNS Authoritative Server 3.4.8 (jenkins at autotest.powerdns.com) (C) 2001-2015 PowerDNS.COM BV
Jun 16 03:31:11 Using 64-bits mode. Built on 20160203175745 by mockbuild at buildvm-19-nfs.phx2.fedoraproject.org, gcc 4.8.5 20150623 (Red Hat 4.8.5-4).
Jun 16 03:31:11 PowerDNS comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it according to the terms of the GPL version 2.
Jun 16 03:31:11 Features: cryptopp libdl lua remotebackend-zeromq
Jun 16 03:31:11 Built-in modules:
[emani ~]# grep -v -e ^# -e ^$ /etc/pdns/pdns.conf
allow-recursion=127.0.0.0/8, 192.168.0.0/16, ::1/128, fe80::/10, 2001:610:600:89c2::/64
Thanks in advance,
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