Unbound and Logitech Media Server: Couldn't resolve IP address

Bern D bernid111 at gmail.com
Wed Jul 4 07:36:39 UTC 2018

I have issue with Logitech Media Server (LMS).
After upgrade from Ubuntu server 17.10 to 18.04 LMS lost the external 
connection (eg to the Internet). All other application which need 
internet connection work fine.
So I can’t play external streams (eg internet radio).
Looking to LMS logs I can see:
[18-07-04 09:04:54.7588] main::init (387) Starting Logitech Media Server 
(v7.9.2, 1529332109, Mon Jun 18 16:46:57 CEST 2018) perl 5.026001 - 
[18-07-04 09:05:05.6116] Slim::Formats::XML::gotErrorViaHTTP (339) 
Error: getting https://www.mysqueezebox.com/api/sounds/v1/opml
Couldn't resolve IP address for: www.mysqueezebox.com
[18-07-04 09:05:05.6123] Slim::Plugin::Sounds::Plugin::_gotSoundsError 
(83) Error: Unable to cache Sounds & Effects menu from SN: Couldn't 
resolve IP address for: www.mysqueezebox.com
[18-07-04 09:05:05.6134] Slim::Networking::Repositories::__ANON__ (146) 
Failed to fetch https://repos.squeezecommunity.org/extensions.xml: 
Couldn't resolve IP address for: repos.squeezecommunity.org
[18-07-04 09:05:05.6139] Slim::Networking::Repositories::__ANON__ (149) 
https lookup failed - trying plain text http instead: 
[18-07-04 09:05:07.6136] Slim::Formats::XML::gotErrorViaHTTP (339) 
Error: getting http://opml.radiotime.com/Index.aspx?partnerId=16
Couldn't resolve IP address for: opml.radiotime.com

I use Ubuntu server 18.04 as the home router/firewall/gate with three 
network interfaces:
-> WAN ( which is seen from the internet as public address 
-> LAN (
-> WLAN (
I use also unbound as DNS resolver and shorewall as firewall. Before 
upgrade LMS with those packets worked fine.
I don’t know how to investigate/diagnose the issue and  do not really 
know if the issue  concerns unbound or firewall settings . See my 
unbound configuration file (below) and enclosed report  from firewall – 
shorewall after few seconds after LMS starting (LMS in this raport is 
called squeezeboxserve)
Please give me directions  how could I investigate the issue.

      # Common Server Options
      chroot: ""
      directory: "/etc/unbound"
     # username: "nobody"
      port: 53
      do-ip4: yes
      do-ip6: no
      do-udp: yes
      do-tcp: yes
      so-reuseport: yes
      do-not-query-localhost: yes

      # System Tuning
      num-threads: 1
so-reuseport: yes
infra-cache-slabs: 1
key-cache-slabs: 1
msg-cache-slabs: 1
rrset-cache-slabs: 1
rrset-cache-size: 64m
msg-cache-size: 32m
key-cache-size: 32m
outgoing-range: 8192
num-queries-per-thread: 4096
so-sndbuf: 4m
so-rcvbuf: 4m

      # Logging Options
      verbosity: 1
      use-syslog: yes
      log-time-ascii: yes
      log-queries: no

      # Unbound Statistics
      statistics-interval: 0
      statistics-cumulative: yes
      extended-statistics: yes

      # Prefetching
      prefetch: yes
      prefetch-key: yes

      # Randomise any cached responses
      rrset-roundrobin: yes

      # Privacy Options
      hide-identity: yes
      hide-version: yes
      qname-minimisation: yes
      minimal-responses: yes

      # DNSSEC
      auto-trust-anchor-file: "/var/lib/unbound/root.key"
      val-permissive-mode: no
      val-clean-additional: yes
      val-log-level: 1

      # Hardening Options
      harden-glue: yes
      harden-short-bufsize: no
      harden-large-queries: yes
      harden-dnssec-stripped: yes
      harden-below-nxdomain: yes
      harden-referral-path: yes
      harden-algo-downgrade: no
      use-caps-for-id: no

      # Listen on all interfaces
      interface-automatic: yes

      # Allow access from everywhere
      access-control: allow

      # Bootstrap root servers
      root-hints: "/usr/share/dns/root.hints"

      # Include DHCP leases
      #include: "/etc/unbound/dhcp-leases.conf"

      # Include any forward zones
      #include: "/etc/unbound/forward.conf"

      control-enable: yes
      control-use-cert: yes
      server-key-file: "/etc/unbound/unbound_server.key"
      server-cert-file: "/etc/unbound/unbound_server.pem"
      control-key-file: "/etc/unbound/unbound_control.key"
      control-cert-file: "/etc/unbound/unbound_control.pem"

# Import any local configurations
#include: "/etc/unbound/local.d/*.conf"

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