diff options
| author | Michael Biebl <biebl@debian.org> | 2022-05-04 15:35:24 +0200 |
|---|---|---|
| committer | Michael Biebl <biebl@debian.org> | 2022-05-04 15:35:24 +0200 |
| commit | 9959fdb2e8ddd06f2161798ca0a39c77d67c652d (patch) | |
| tree | 2ce24a336d2b1c5fd5dec3090db312eded6c78ba /README.md | |
| parent | 8c623dddbdebe354cb94bfc559a5371a14865317 (diff) | |
New upstream version 1.37.92 upstream/1.37.92
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/README.md b/README.md new file mode 100644 index 00000000..1676c2d6 --- /dev/null +++ b/README.md @@ -0,0 +1,88 @@ +****************** +NetworkManager core daemon has moved to gitlab.freedesktop.org! + +git clone https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git +****************** + + +Networking that Just Works +-------------------------- + +NetworkManager attempts to keep an active network connection available at all +times. The point of NetworkManager is to make networking configuration and +setup as painless and automatic as possible. NetworkManager is intended to +replace default route, replace other routes, set IP addresses, and in general +configure networking as NM sees fit (with the possibility of manual override as +necessary). In effect, the goal of NetworkManager is to make networking Just +Work with a minimum of user hassle, but still allow customization and a high +level of manual network control. If you have special needs, we'd like to hear +about them, but understand that NetworkManager is not intended for every +use-case. + +NetworkManager will attempt to keep every network device in the system up and +active, as long as the device is available for use (has a cable plugged in, +the killswitch isn't turned on, etc). Network connections can be set to +'autoconnect', meaning that NetworkManager will make that connection active +whenever it and the hardware is available. + +"Settings services" store lists of user- or administrator-defined "connections", +which contain all the settings and parameters required to connect to a specific +network. NetworkManager will _never_ activate a connection that is not in this +list, or that the user has not directed NetworkManager to connect to. + + +How it works: + +The NetworkManager daemon runs as a privileged service (since it must access +and control hardware), but provides a D-Bus interface on the system bus to +allow for fine-grained control of networking. NetworkManager does not store +connections or settings, it is only the mechanism by which those connections +are selected and activated. + +To store pre-defined network connections, two separate services, the "system +settings service" and the "user settings service" store connection information +and provide these to NetworkManager, also via D-Bus. Each settings service +can determine how and where it persistently stores the connection information; +for example, the GNOME applet stores its configuration in GConf, and the system +settings service stores its config in distro-specific formats, or in a distro- +agnostic format, depending on user/administrator preference. + +A variety of other system services are used by NetworkManager to provide +network functionality: wpa_supplicant for wireless connections and 802.1x +wired connections, pppd for PPP and mobile broadband connections, DHCP clients +for dynamic IP addressing, dnsmasq for proxy nameserver and DHCP server +functionality for internet connection sharing, and avahi-autoipd for IPv4 +link-local addresses. Most communication with these daemons occurs, again, +via D-Bus. + + +Why doesn't my network Just Work? + +Driver problems are the #1 cause of why NetworkManager sometimes fails to +connect to wireless networks. Often, the driver simply doesn't behave in a +consistent manner, or is just plain buggy. NetworkManager supports _only_ +those drivers that are shipped with the upstream Linux kernel, because only +those drivers can be easily fixed and debugged. ndiswrapper, vendor binary +drivers, or other out-of-tree drivers may or may not work well with +NetworkManager, precisely because they have not been vetted and improved by the +open-source community, and because problems in these drivers usually cannot +be fixed. + +Sometimes, command-line tools like 'iwconfig' will work, but NetworkManager will +fail. This is again often due to buggy drivers, because these drivers simply +aren't expecting the dynamic requests that NetworkManager and wpa_supplicant +make. Driver bugs should be filed in the bug tracker of the distribution being +run, since often distributions customize their kernel and drivers. + +Sometimes, it really is NetworkManager's fault. If you think that's +the case, please file a bug at: + +https://gitlab.freedesktop.org/NetworkManager/NetworkManager/issues + +Attaching NetworkManager debug logs from the journal (or wherever your +distribution directs syslog's 'daemon' facility output, as +/var/log/messages or /var/log/daemon.log) is often very helpful, and +(if you can get) a working wpa_supplicant config file helps +enormously. See the logging section of file +contrib/fedora/rpm/NetworkManager.conf for how to enable debug logging +in NetworkManager. |