RHEL 서버가 내부 DNS를 통해 라우팅되지 않고 루트 DNS와 직접 통신하는 이유
Issue
- RHEL 서버는 내부 DNS를 통해 라우팅되지 않고 루트 DNS와 직접 통신합니다.
- 로그에서 보고된 시간에 서버에서 DNSSEC 유효성 검사 관련 메시지만 발견되었습니다.
[root@xyz ~]# cat /var/log/messages| grep 00:00
Mar 6 00:00:02 xyz systemd[1]: Stopping User Slice of root.
Mar 6 00:00:02 xyz systemd: Stopping User Slice of root.
Mar 6 00:00:20 xyz systemd[1]: Started update of the root trust anchor for DNSSEC validation in unbound.
Mar 6 00:00:20 xyz systemd: Started update of the root trust anchor for DNSSEC validation in unbound.
Mar 7 00:00:01 xyz systemd[1]: Starting update of the root trust anchor for DNSSEC validation in unbound...
Mar 7 00:00:01 xyz systemd: Starting update of the root trust anchor for DNSSEC validation in unbound...
Environment
- Red Hat Enterprise Linux(RHEL) 7 및 8
- DNS
- unbound
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