Operating system: Ubuntu
OS version: 20.04
In syslog I found this issue today:
Dec 10 15:16:44 xst01 named[1202250]: none:100: 'max-cache-size 90%' - setting to 3456MB (out of 3840MB)
Dec 10 15:16:44 xst01 named[1202250]: configuring command channel from '/etc/bind/rndc.key'
Dec 10 15:16:44 xst01 named[1202250]: open: /etc/bind/rndc.key: permission denied
Dec 10 15:16:44 xst01 named[1202250]: couldn't add command channel 127.0.0.1#953: permission denied
Dec 10 15:16:44 xst01 named[1202250]: configuring command channel from '/etc/bind/rndc.key'
Dec 10 15:16:44 xst01 named[1202250]: open: /etc/bind/rndc.key: permission denied
Dec 10 15:16:44 xst01 named[1202250]: couldn't add command channel ::1#953: permission denied
The Permission are looks like this:
root@xst01:/etc/bind# ls -als
total 64
4 drwxr-sr-x 2 root bind 4096 Dec 10 15:16 .
12 drwxr-xr-x 121 root root 12288 Dec 9 14:02 ..
4 -rw-r--r-- 1 root root 1991 Aug 18 2020 bind.keys
4 -rw-r--r-- 1 root root 237 Apr 15 2020 db.0
4 -rw-r--r-- 1 root root 271 Apr 15 2020 db.127
4 -rw-r--r-- 1 root root 237 Apr 15 2020 db.255
4 -rw-r--r-- 1 root root 353 Apr 15 2020 db.empty
4 -rw-r--r-- 1 root root 270 Apr 15 2020 db.local
4 -rw-r--r-- 1 root bind 544 Dec 10 15:13 named.conf
4 -rw-r--r-- 1 root bind 498 Apr 15 2020 named.conf.default-zones
4 -rw-r--r-- 1 root bind 3966 Dec 10 15:16 named.conf.local
4 -rw-r--r-- 1 root bind 1115 Dec 10 15:08 named.conf.options
4 -rw-r----- 1 bind bind 100 Oct 8 2020 rndc.key
4 -rw-r--r-- 1 root root 1317 Apr 15 2020 zones.rfc1918
What permissions are here expected for rndc.key?