<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> I just found that one of my systems that uses systemd-networkd did not have DNS setup. Below is the all the commands I ran to debug this problem that showed up after the system was dnf updated and rebooted. This is what I found: $ host google.com Host google.com not found: 2(SERVFAIL) $ more /etc/resolv.conf # This is /run/systemd/resolve/stub-resolv.conf managed by <a class="moz-txt-link-freetext" href="man:systemd-resolved(8)">man:systemd-resolved(8)</a>. # <snip> nameserver 127.0.0.53 options edns0 trust-ad search . $ resolvectl Global Protocols: LLMNR=resolve -mDNS -DNSOverTLS DNSSEC=no/unsupported resolv.conf mode: stub Link 2 (internal) Current Scopes: LLMNR/IPv4 LLMNR/IPv6 Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported DNS will not work - next to figure out why resolved is not setup. $ ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: internal: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether ac:1f:6b:f6:e0:94 brd ff:ff:ff:ff:ff:ff inet 172.16.2.200/24 brd 172.16.2.255 scope global internal valid_lft forever preferred_lft forever inet6 fe80::ae1f:6bff:fef6:e094/64 scope link valid_lft forever preferred_lft forever $ more 10-internal.link [Link] Description=Set internal ethernet interface name Name=internal [Match] # eno1 MACAddress=ac:1f:6b:f6:e0:94 $ more internal-if.network [Match] Name=internal [Network] Description=Internal network Address=172.16.2.200/24 Gateway=172.16.2.254 DNS=172.16.2.254 Domains=chelsea.private $ networkctl IDX LINK TYPE OPERATIONAL SETUP 1 lo loopback carrier unmanaged 2 internal ether routable configuring Odd - configuring! $ networkctl status ● State: routable Online state: online Address: 172.16.2.200 on internal fe80::ae1f:6bff:fef6:e094 on internal Gateway: 172.16.2.254 on internal DNS: 172.16.2.254 Search Domains: chelsea.private Mar 18 09:20:41 fender.chelsea.private systemd-networkd[573]: internal: Gained IPv6LL Mar 21 08:50:15 fender.chelsea.private systemd[1]: Starting systemd-networkd.service - Network Configuration... Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: internal: Link UP Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: internal: Gained carrier Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: lo: Link UP Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: lo: Gained carrier Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: internal: Gained IPv6LL Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: Enumeration completed Mar 21 08:50:15 fender.chelsea.private systemd[1]: Started systemd-networkd.service - Network Configuration. Mar 21 08:50:15 fender.chelsea.private systemd-networkd[63749]: internal: Configuring with /etc/systemd/network/internal-if.network. $ networkctl status internal ● 2: internal Link File: /etc/systemd/network/10-internal.link Network File: /etc/systemd/network/internal-if.network Type: ether Kind: n/a State: routable (configured) Online state: online Path: pci-0000:01:00.0 Driver: igb Vendor: Intel Corporation Model: I210 Gigabit Network Connection Hardware Address: ac:1f:6b:f6:e0:94 (Super Micro Computer, Inc.) MTU: 1500 (min: 68, max: 9216) QDisc: mq IPv6 Address Generation Mode: eui64 Number of Queues (Tx/Rx): 8/8 Auto negotiation: yes Speed: 1Gbps Duplex: full Port: tp Address: 172.16.2.200 fe80::ae1f:6bff:fef6:e094 Gateway: 172.16.2.254 DNS: 172.16.2.254 Search Domains: chelsea.private Activation Policy: up $ resolvectl Global Protocols: LLMNR=resolve -mDNS -DNSOverTLS DNSSEC=no/unsupported resolv.conf mode: stub Link 2 (internal) Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6 Protocols: +DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported Current DNS Server: 172.16.2.254 DNS Servers: 172.16.2.254 DNS Domain: chelsea.private What?!?!? Configured! $ networkctl IDX LINK TYPE OPERATIONAL SETUP 1 lo loopback carrier unmanaged 2 internal ether routable configured Now configured! So after 3 days of being stuck in configured it working now that I run only the above commands. One of the status commands unstuck networkd? The last event on the system was a dns update 2023-03-18 that includes these packages: ---> Package systemd.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd.x86_64 251.13-6.fc37 will be an upgrade ---> Package systemd-boot-unsigned.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd-boot-unsigned.x86_64 251.13-6.fc37 will be an upgrade ---> Package systemd-libs.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd-libs.x86_64 251.13-6.fc37 will be an upgrade ---> Package systemd-networkd.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd-networkd.x86_64 251.13-6.fc37 will be an upgrade ---> Package systemd-oomd-defaults.noarch 251.13-5.fc37 will be upgraded ---> Package systemd-oomd-defaults.noarch 251.13-6.fc37 will be an upgrade ---> Package systemd-pam.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd-pam.x86_64 251.13-6.fc37 will be an upgrade ---> Package systemd-resolved.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd-resolved.x86_64 251.13-6.fc37 will be an upgrade ---> Package systemd-rpm-macros.noarch 251.13-5.fc37 will be upgraded ---> Package systemd-rpm-macros.noarch 251.13-6.fc37 will be an upgrade ---> Package systemd-udev.x86_64 251.13-5.fc37 will be upgraded ---> Package systemd-udev.x86_64 251.13-6.fc37 will be an upgrade Why was the interface stuck in configuring? Barry </body> </html>