Hi Martin.
Le 10/05/2018 à 13:24, Martin Steigerwald a écrit :
Especially I wonder about network without Network Manager
The first thing I've done as from at least a dozen years, after
installing a new version of Debian, was to 'apt-get remove --purge
network-manager'. This f. crap is always in your way to
deconfigure/misconfigure the network. ifupdown with a simple interfaces
file does the job as it always did. In case you want your system to
deconfigure/reconfigure Ethernet interfaces when you unplug/replug the
cables, then 'apt-get install ifplugd'; it's potterware but it just works.
BTW, I'm not sure ifupdown and the interfaces file are installed by
default nowadays. I don't remember which package one must install to
have all this traditional infrastructure, though, if it's already
installed, it won't be removed when dist-upgrading.
If you have a wifi interface, it is more complicated. Explained below.
'apt-get install wpa-supplicant wpa-gui', then write the following two
lines into /etc/wpa_supplicant/wpa_supplicant.conf:
ctrl_interface=DIR=/run/wpa_supplicant GROUP=dialout
update_config=1
Make yourself a member of group dialout. Then search the web for a
tutorial on wifi roaming with wpa_supplicant: it will explain you how to
write the wifi part of the interfaces file. To finish with,
'dpkg-reconfigure ifplugd' to tell it to handle your wifi interface. Use
wpa_gui everytime you want to connect your laptop to a yet-unknown wifi hub.
Didier
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