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.
