Thema: hostname
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Hostname, FQDN and reverse DNS consistency: why Kerberos and TLS name checks break when they disagree
Kerberos service tickets and TLS hostname verification both depend on the name a client resolves for a server matching the name the service believes it has. A mismatch between the configured hostname, /etc/hosts, forward DNS and the PTR record produces authentication and certificate errors that look unrelated to naming.
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Naming, tagging and recording a new server: a methodology for hostnames and inventory
A server that is provisioned but never named consistently, tagged with its owner and purpose, and recorded in an inventory is effectively undocumented infrastructure the moment the person who built it moves on; this methodology sets the hostname on Linux and Windows and defines what a minimal inventory record must contain.
Maschinenlesbar: JSON