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I need help with finding documentation if it exists.
My problem started when many google searches seemed to indicate that NM causes problems with WOL settings, and that appeared to be the case on a fedora 20 computer. I'd use ethtool to set "wol g" on the NIC, but on reboot it would be back to disabled. I found many references saying that NM is the culprit.
So I started searching for how NM handles starting and stopping NIC's and couldn't find any documentation. I looked at /etc/NetworkManager/NetworkManager.conf and it only contains "plugins=ifcfg-rh", which prompted the question "what is a NM plugin and how do they work". Again no documentation could be found.
Ultimately I turned off NM and used just the network service, which solved my problem on that computer, but I'm frustrated that an important part of a linux system would be so undocumented. I don't have the time or inclination to try to reverse-engineer the source code to find answers.
So if you have links to the details of how NM plugins work, how /etc/NetworkManager/dispatch.d/ scripts work, how NM interacts with ifcfg files in /etc/systemconfig/network-scripts/ they would be appreciated. tia.
Documentation in general is a huge weakness in the linux world, but NM seems worse than most packages.
I do not have NM installed in any of my boxes, thus can't tell for sure, but did you look in /usr/share/doc?
Yep, nothing there that has any useful details. I got excited when I saw an examples/ directory but there was only one server.conf file there with no explanation of what it was an example of, or how to use it's settings. Pfui.
Anyway, thanks a lot for your time and effort. I think I'm going to put NM aside and continue to simply disable it whenever it gets in the way. I probably wouldn't ever have used NM if it weren't turned on by default in Fedora. I suspect it would be handy but without any decent documentation it's already cost me a lot more time than it's worth.
If anyone does know of any decent administrator-level documentation for NetworkManager feel free to share, but it looks like it doesn't exist
Thanks EDDY1. I already found that documentation, and a) it's a couple versions out of date, and says nothing about being compatible documentation with CentOS (which I also use). And I didn't find any details about dispatcher.d scripts, plugins, or other admin-type information. This doc is primarily a rundown of how to use the gui screens.
But thanks anyway. I'll keep hoping something turns up.