munin-node ignores permissions

Hi, I have a fedora22 system with munin-2.0.25 and have a few modules that I just can't get to work. They all respond with some form of "permission denied". I've disabled SELinux (security=0), and I've checked all permissions as the user running the script. 2015/12/29-21:34:48 [3814] Error output from bind9_rndc: 2015/12/29-21:34:48 [3814] rndc: error: open: /etc/rndc.key: permission denied 2015/12/29-21:34:48 [3814] rndc: could not load rndc configuration 2015/12/29-21:34:48 [3814] /etc/munin/plugins/bind9_rndc: /var/named/chroot/var/named/data/named.stats: Permission denied If I change /etc/rndc.key to 644, it runs fine. The contents of /etc/munin/plugin-conf.d/munin-node: [bind9_rndc] user named group named env.querystats /var/named/chroot/var/named/data/named.stats env.rndc /usr/sbin/rndc env.graph_args --upper-limit 100 -l 0 env.graph_scale no env.graph_vlabel % I added a system() to bind9_rndc: system("id > /tmp/123.out"); It creates the file owned by named with group nobody, despite "group named" above. The contents of the file are: uid=25(named) gid=99(nobody) groups=99(nobody),25(named) Why is it ignoring the "group named" above? I've even tried creating the config file as /etc/munin/plugin-conf.d/bind9_rndc and it still seems to ignore it. Is that the proper place and format for it? I have another virtually identically fc22 munin-2.0.25 system with the same config files and it's not having a problem. Any ideas greatly appreciated.