Re: network-manager takes 1-4 restarts in order to recognize and connect to already-configured wifi network, USB dongle NIC
Hi there,
On Sat, 28 Mar 2020, Alan Tu wrote:
... "Debian testing" system ... network-manager 1.22.8-1. ...
# systemctl restart network-manager
After one to four times of this, eventually network-manager
establishes the network connection.
It seems to me that network-manager is only really useful for people
with no more knowledge of their network configuration than the average
Windows user. If you have already configured your network connections
I guess that you know more about your networks than that (very likely
more than the authors of network-manager too). Therefore it can do
little but harm to allow network-manager to get itself involved.
My networks tend to be slightly more complex than most, but it is only
slightly. Even so, I have yet to find network-manager does anything
except cause trouble. I see much ire directed toward systemd but IMHO
network-manager deserves more. For probably the past decade it's been
the amongst the first things that I'll purge from a freshly installed
Debian system.
Seting up a simple network really isn't at all difficult. You have to
pick sane IP addresses and network masks for your interfaces, script
them and a few routes, and perhaps load a module or two to get the
interfaces running if that doesn't happen by default in the gargantuan
Debian kernels. Wireless networks can be a bit more complex but every
operation is a simple one-liner, and, for twenty-five years, even in
the most complex networks that I've worked with, I don't think I've
ever needed more than a dozen lines in rc.local to set up networking
for any of a couple of hundred machines. It's _much_ easier to learn
how to set up your network than it is to find out what network-manager
has done to screw things up; and when you have that basic knowledge
under your belt it's a great deal easier to find out what's gone wrong
when it does (for example when you rashly type 'apt-get dist-upgrade'
which the past three or four times has, each time I've done it, broken
increasingly badly most systems that I've done it to - apparently many
and misguided attempts to solve problems I've never actually had).
--
73,
Ged.
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