> True, we know the OP has a problem with with sudo. What we do not know > is the hostname he chose during the installation, although it looks like > it was "localhost" from the second line of > > 127.0.0.1 localhost > 127.0.1.1 localhost >
root@localhost:~# cat /etc/hostname localhost > The installer recommends a single word for the hostname. The "single" > aspect is the result of a number of years of experience and bug reports. > Although "localhost.localdomain" is not an invalid hostname the OP does > not appear to have used it. (We have not been given the contents of his > /etc/hostname explicitly). > I agree choosing "localhost" is wrong per-RFC. But I have been doing it for years and stuff never broke. stretch+sudo 1.8.19p1-2.1 is a first. Bad luck of me. > What was the problem with his resolv.conf? Have I missed that? > Hardcoded company nameserver in /etc/resolv.conf that only works when VPN is up. VPN was down and problem appeared. x9p