When I run this command on Debian 8.1
# sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get dist-upgrade -y && sudo apt-get autoremove --purge -y && sudo apt-get autoclean -y
I got this error: https://gist.githubusercontent.com/RoldanLT/ee00d64154727e31c495/raw/9f57bec5f8da1459b1bd0728a687fa7d727c6356/gistfile1.txt
How to solve this? My server hostname has proper DNS IP pointed to it.
Hello @RoldanLT
could you please provide me output of following commands:
cat /etc/hostname
and
cat /etc/hosts
cat /etc/hostname
myhost.name.com
cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 debian
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allroutersHello @RoldanLT
Please replace
127.0.1.1 debian
with
127.0.1.1 myhost.name.com
and try
apt-get update
Hope above will resolve your sudo: unable to resolve host myhost.name.com problem
I used to get this same “Unable to resolve host” error a lot, when setting up debian servers (not so much anymore). I used to get this error so often, I made a development note about it, in my Apple Notes app. When I opened that note, I was reminded that there used to be a script you needed to run, after changing:
/etc/hostname
…which was:
/etc/init.d/hostname.sh start
However, I believe that script has now been replaced with the following command:
sudo service hostname start
…which should allow you to test by issuing the following command:
hostname
…which should output your newly assigned hostname. I suggest though, you may need to test the output of the last command, after restarting your server.
But I got this:
Failed to restart hostname.service: Unit hostname.service is masked.
Hello @RoldanLT
I hope your query is resolved. I am closing this support topic for now.
Feel free to create a new support topic if you have any queries further. 