Question

apt-get update returns error 'failure resolving repo.percona.com'

after trying to get all the updates loaded onto my droplet, update stopped working history 1976 sudo apt-get update 1977 sudo apt-get upgrade 1978 sudo dpkg --configure -a 1979 sudo apt-get upgrade 1980 sudo apt-get update 1981 apt-get -f install’ 1982 apt-get -f install 1983 sudo dpkg --configure -a 1984 sudo apt-get -f install 1985 sudo apt-get update 1986 sudo apt-get upgrade 1987 sudo apt-get update 1988 sudo apt-get upgrade 1989 sudo apt autoremove 1990 sudo reboot 1991 sudo apt-get update

The last update returns Err:1 http://repo.percona.com/percona/apt xenial InRelease Temporary failure resolving ‘repo.percona.com’ Err:2 http://repo.percona.com/apt xenial InRelease Temporary failure resolving ‘repo.percona.com’ Err:3 http://mirrors.digitalocean.com/ubuntu xenial InRelease Temporary failure resolving ‘mirrors.digitalocean.com’ Err:4 http://mirrors.digitalocean.com/ubuntu xenial-updates InRelease Temporary failure resolving ‘mirrors.digitalocean.com’ Err:5 http://mirrors.digitalocean.com/ubuntu xenial-backports InRelease Temporary failure resolving ‘mirrors.digitalocean.com’ Err:6 https://repos.sonar.digitalocean.com/apt main InRelease Could not resolve host: repos.sonar.digitalocean.com Err:7 http://ppa.launchpad.net/certbot/certbot/ubuntu xenial InRelease Temporary failure resolving ‘ppa.launchpad.net’ Err:8 http://security.ubuntu.com/ubuntu xenial-security InRelease Temporary failure resolving ‘security.ubuntu.com’ Reading package lists… Done W: Failed to fetch http://mirrors.digitalocean.com/ubuntu/dists/xenial/InRelease Temporary failure resolving ‘mirrors.digitalocean.com’ W: Failed to fetch http://mirrors.digitalocean.com/ubuntu/dists/xenial-updates/InRelease Temporary failure resolving ‘mirrors.digitalocean.com’ W: Failed to fetch http://mirrors.digitalocean.com/ubuntu/dists/xenial-backports/InRelease Temporary failure resolving ‘mirrors.digitalocean.com’ W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease Temporary failure resolving ‘security.ubuntu.com’ W: Failed to fetch http://ppa.launchpad.net/certbot/certbot/ubuntu/dists/xenial/InRelease Temporary failure resolving ‘ppa.launchpad.net’ W: Failed to fetch https://repos.sonar.digitalocean.com/apt/dists/main/InRelease Could not resolve host: repos.sonar.digitalocean.com W: Failed to fetch http://repo.percona.com/percona/apt/dists/xenial/InRelease Temporary failure resolving ‘repo.percona.com’ W: Failed to fetch http://repo.percona.com/apt/dists/xenial/InRelease Temporary failure resolving ‘repo.percona.com’ W: Some index files failed to download. They have been ignored, or old ones used instead.

cat /etc/resolv.conf

Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)

DO NOT EDIT THIS FILE BY HAND – YOUR CHANGES WILL BE OVERWRITTEN

sudo service networking restart Job for networking.service failed because the control process exited with error code. See “systemctl status networking.service” and “journalctl -xe” for details.

systemctl status networking.service ● networking.service - Raise network interfaces Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled) Drop-In: /run/systemd/generator/networking.service.d └─50-insserv.conf-$network.conf Active: failed (Result: exit-code) since Sun 2018-12-30 11:12:55 EST; 3min 43s ago Docs: man:interfaces(5) Process: 20195 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE) Process: 20191 ExecStartPre=/bin/sh -c [ “$CONFIGURE_INTERFACES” != “no” ] && [ -n “$(ifquery --read-environment --list --exclude=lo)” Main PID: 20195 (code=exited, status=1/FAILURE)

Dec 30 11:12:55 kbcmhub ifup[20195]: Failed to bring up lo. Dec 30 11:12:55 kbcmhub ifup[20195]: RTNETLINK answers: File exists Dec 30 11:12:55 kbcmhub ifup[20195]: Failed to bring up eth0. Dec 30 11:12:55 kbcmhub ifup[20195]: /etc/network/if-up.d/sendmail: 44: .: Can’t open /usr/share/sendmail/dynamic Dec 30 11:12:55 kbcmhub ifup[20195]: run-parts: /etc/network/if-up.d/sendmail exited with return code 2 Dec 30 11:12:55 kbcmhub ifup[20195]: /sbin/ifup: post-up script failed. Dec 30 11:12:55 kbcmhub systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE Dec 30 11:12:55 kbcmhub systemd[1]: Failed to start Raise network interfaces. Dec 30 11:12:55 kbcmhub systemd[1]: networking.service: Unit entered failed state. Dec 30 11:12:55 kbcmhub systemd[1]: networking.service: Failed with result ‘exit-code’.

Sendmail is not working


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