server - Authentication error while restarting apache - Ask Ubuntu


i'm connecting cloud server (ovh) using ssh key , i'm trying restart apache , gets error:

ubuntu@server-1:~$ service apache2 reload  ==== authenticating org.freedesktop.systemd1.manage-units === authentication required reload 'apache2.service'. authenticating as: ubuntu (ubuntu) password:  polkit-agent-helper-1: pam_authenticate failed: authentication failure ==== authentication failed === failed reload apache2.service: access denied see system logs , 'systemctl status apache2.service' details.

how solve it?

you must run command using sudo follow:

sudo service apache2 reload

update:
if have sudo: unable resolve host server-1 problem, need fix hostname through /etc/hostname , /etc/hosts , reboot linux machine take affect. retry above command again.
more details problem: error message when run sudo: unable resolve host (none)


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