ERF50-9294 » History » Version 3
ERF50-9294 Failed to save: failed to detect boot server¶
ERF50-9294 [Foreman::WrappedException]: Unable to find IP address for 'foreman.home.lan' ([Resolv::ResolvError]: DNS result has no information for foreman.home.lan)
failed to detect boot server: ERF50-9294 [Foreman::WrappedException]: Unable to find IP address for 'capsule-server.satellite.example.com' ([SocketError]: getaddrinfo: Name or service not known)
- This happens when hostname set in the
tftp_servernameoption (TFTP Smart Proxy by default) has no valid DNS record via DNS servers set in SOA/NS record of the domain. Foreman resolves the hostname set in
tftp_servernameto an IP address in order to ensure clients boots without any DNS requests.
- By default, Foreman explicitly contacts DNS servers configured in the SOA therefore it ignores system-wide DNS setting (like
/etc/hosts, etc). This can lead to issues and this may be unexpected behaviour for some administrators.
- Luckily, there is a global setting "Query local nameservers" (see Administer -> Settings) available to change that behaviour. Foreman will then query the locally configured resolver instead of the SOA/NS authorities when the setting is set.
As an alternative, set the
tftp_servername configuration value to the server's IP address instead of the DNS name, directly in
/etc/foreman-proxy/settings.d/tftp.yml, so Foreman won't need to resolve the hostname.
The relevant setting can be found on the Smart Proxy in
Administer -> Settings -> Provisoning -> Query local nameservers (make sure to restart
foreman-proxy process after changing by issuing
# service foreman-proxy restart):
[root@myproxy ~]# cat /etc/foreman-proxy/settings.d/tftp.yml --- :enabled: true :tftproot: /var/lib/tftpboot/ :tftp_servername: 192.168.99.1
Foreman installer can set this automatically via