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NM-SETTINGS-KEYFILE
Section: Configuration (5)Updated:
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NAME
nm-settings-keyfile - Description of keyfile settings pluginDESCRIPTION
NetworkManager is based on the concept of connection profiles that contain network configuration (see nm-settings(5) for details). The profiles can be stored in various formats. NetworkManager uses plugins for reading and writing the data. The plugins can be configured in NetworkManager.conf(5).
The keyfile plugin is the generic plugin that supports all the connection types and capabilities that NetworkManager has. It writes files out in a .ini-style format in /etc/NetworkManager/system-connections/. This plugin is always enabled and will automatically be used to store any connections that are not supported by any other active plugin. For security, it will ignore files that are readable or writable by any user or group other than 'root' since private keys and passphrases may be stored in plaintext inside the file.
FILE FORMAT
The keyfile config format is a simple .ini-style format. It consists of sections (groups) of key-value pairs. Each section corresponds to a setting name as described in the settings specification (nm-settings(5)). Each configuration key/value pair in the section is one of the properties listed in the settings specification. The majority of properties of the specification is written in the same format into the keyfile too. However some values are inconvenient for people to use. These are stored in the files in more readable ways. These properties are described below. An example could be IP addresses that are not written as integer arrays, but more reasonably as "1.2.3.4/12 1.2.3.254". More information of the generic key file format can be found at m[blue]GLib key file formatm[][1] (Lines beginning with a '#' are comments, lists are separated by character ; etc.).
Users can create or modify the keyfile connection files manually, even if that is not the recommended way of managing the profiles. However, if they choose to do that, they must inform NetworkManager about their changes (see monitor-connection-file in nm-settings(5) and nmcli con (re)load).
Examples of keyfile configuration.
-
A sample configuration for an ethernet network: [connection] id=Main eth0 uuid=27afa607-ee36-43f0-b8c3-9d245cdc4bb3 type=802-3-ethernet autoconnect=true [ipv4] method=auto [802-3-ethernet] mac-address=00:23:5a:47:1f:71
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A sample configuration for WPA-EAP (PEAP with MSCHAPv2) and always-ask secret: [connection] id=CompanyWIFI uuid=cdac6154-a33b-4b15-9904-666772cfa5ee type=wifi autoconnect=false [wifi] ssid=CorpWLAN mode=infrastructure security=802-11-wireless-security [wifi-security] key-mgmt=wpa-eap [ipv4] method=auto [ipv6] method=auto [802-1x] eap=peap; identity=joe ca-cert=/home/joe/.cert/corp.crt phase1-peapver=1 phase2-auth=mschapv2 password-flags=2
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A sample configuration for openvpn: [connection] id=RedHat-openvpn uuid=7f9b3356-b210-4c0e-8123-bd116c9c280f type=vpn timestamp=1385401165 [vpn] service-type=org.freedesktop.NetworkManager.openvpn connection-type=password password-flags=3 remote=ovpn.my-company.com cipher=AES-256-CBC reneg-seconds=0 port=443 username=joe ca=/etc/openvpn/ISCA.pem tls-remote=ovpn.my-company.com [ipv6] method=auto [ipv4] method=auto ignore-auto-dns=true never-default=true
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A sample configuration for a bridge and a bridge port: [connection] [connection] id=MainBridge id=br-port-1 uuid=171ae855-a0ab-42b6-bd0c-60f5812eea9d uuid=d6e8ae98-71f8-4b3d-9d2d-2e26048fe794 interface-name=MainBridge interface-name=em1 type=bridge type=ethernet master=MainBridge [bridge] slave-type=bridge interface-name=MainBridge
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A sample configuration for a VLAN: [connection] id=VLAN for building 4A uuid=8ce1c9e0-ce7a-4d2c-aa28-077dda09dd7e interface-name=VLAN-4A type=vlan [vlan] interface-name=VLAN-4A parent=eth0 id=4
DETAILS
keyfile plugin variables for the majority of NetworkManager properties have one-to-one mapping. It means a NetworkManager property is stored in the keyfile as a variable of the same name and in the same format. There are several exceptions to this rule, mainly for making keyfile syntax easier for humans. The exceptions handled specially by keyfile plugin are listed below. Refer to nm-settings(5) for all available settings and properties and their description.
Name aliases. Some of the NetworkManager setting names are somewhat hard to type or remember. Therefore keyfile introduces aliases that can be used instead of the names.
- setting name keyfile alias
- 802-3-ethernet = ethernet
- 802-11-wireless = wifi
- 802-11-wireless-security = wifi-security
Table 1. bridge setting (section)
| Property | Keyfile Variable | Format |
Description
|
| mac-address | mac-address | usual hex-digits-and-colons notation |
MAC address in traditional hex-digits-and-colons notation, or semicolon separated list of 6 decimal bytes (obsolete)
Example: mac-address=00:22:68:12:79:A2 mac-address=0;34;104;18;121;162;
|
Table 2. infiniband setting (section)
| Property | Keyfile Variable | Format |
Description
|
| mac-address | mac-address | usual hex-digits-and-colons notation |
MAC address in traditional hex-digits-and-colons notation, or or semicolon separated list of 20 decimal bytes (obsolete)
Example: mac-address= 80:00:00:6d:fe:80:00:00:00:00:00:00:00:02:55:00:70:33:cf:01
|
Table 3. ipv4 setting (section)
| Property | Keyfile Variable | Format |
Description
|
| dns | dns | list of DNS IP addresses |
List of DNS servers.
Example: dns=1.2.3.4;8.8.8.8;8.8.4.4;
|
| addresses | address1, address2, ... | address/plen |
List of static IP addresses.
Example: address1=192.168.100.100/24 address2=10.1.1.5/24
|
| gateway | gateway | string |
Gateway IP addresses as a string.
Example: gateway=192.168.100.1
|
| routes | route1, route2, ... | route/plen[,gateway,metric] |
List of IP routes.
Example: route1=8.8.8.0/24,10.1.1.1,77 route2=7.7.0.0/16
|
Table 4. ipv6 setting (section)
| Property | Keyfile Variable | Format |
Description
|
| dns | dns | list of DNS IP addresses |
List of DNS servers.
Example: dns=2001:4860:4860::8888;2001:4860:4860::8844;
|
| addresses | address1, address2, ... | address/plen |
List of static IP addresses.
Example: address1=abbe::cafe/96 address2=2001::1234
|
| gateway | gateway | string |
Gateway IP addresses as a string.
Example: gateway=abbe::1
|
| routes | route1, route2, ... | route/plen[,gateway,metric] |
List of IP routes.
Example: route1=2001:4860:4860::/64,2620:52:0:2219:222:68ff:fe11:5403
|
Table 5. serial setting (section)
| Property | Keyfile Variable | Format |
Description
|
| parity | parity | 'e', 'o', or 'n' |
The connection parity; even, odd, or none. Note that older versions of NetworkManager stored this as an integer: 69 ('E') for even, 111 ('o') for odd, or 110 ('n') for none.
Example: parity=n
|
Table 6. vpn setting (section)
| Property | Keyfile Variable | Format |
Description
|
| data | separate variables named after keys of the dictionary |
The keys of the data dictionary are used as variable names directly under [vpn] section.
Example: remote=ovpn.corp.com cipher=AES-256-CBC username=joe
| |
| secrets | separate variables named after keys of the dictionary |
The keys of the secrets dictionary are used as variable names directly under [vpn-secrets] section.
Example: password=Popocatepetl
|
Table 7. 802-3-ethernet setting (section)
| Property | Keyfile Variable | Format |
Description
|
| mac-address | mac-address | usual hex-digits-and-colons notation |
MAC address in traditional hex-digits-and-colons notation (e.g. 00:22:68:12:79:A2), or semicolon separated list of 6 bytes (obsolete) (e.g. 0;34;104;18;121;162)
|
| cloned-mac-address | cloned-mac-address | usual hex-digits-and-colons notation |
Cloned MAC address in traditional hex-digits-and-colons notation (e.g. 00:22:68:12:79:B2), or semicolon separated list of 6 bytes (obsolete) (e.g. 0;34;104;18;121;178).
|
| mac-address-blacklist | mac-address-blacklist | list of MACs (separated with semicolons) |
MAC address blacklist.
Example: mac-address-blacklist= 00:22:68:12:79:A6;00:22:68:12:79:78
|
Table 8. 802-11-wireless setting (section)
| Property | Keyfile Variable | Format |
Description
|
| ssid | ssid | string (or decimal-byte list - obsolete) |
SSID of Wi-Fi network.
Example: ssid=Quick Net
|
| mac-address | mac-address | usual hex-digits-and-colons notation |
MAC address in traditional hex-digits-and-colons notation (e.g. 00:22:68:12:79:A2), or semicolon separated list of 6 bytes (obsolete) (e.g. 0;34;104;18;121;162).
|
| cloned-mac-address | cloned-mac-address | usual hex-digits-and-colons notation |
Cloned MAC address in traditional hex-digits-and-colons notation (e.g. 00:22:68:12:79:B2), or semicolon separated list of 6 bytes (obsolete) (e.g. 0;34;104;18;121;178).
|
| mac-address-blacklist | mac-address-blacklist | list of MACs (separated with semicolons) |
MAC address blacklist.
Example: mac-address-blacklist= 00:22:68:12:79:A6;00:22:68:12:79:78
|
Secret flags
Each secret property in a NetworkManager setting has an associated flags property that describes how to handle that secret. In the keyfile plugin, the value of -flags variable is a decimal number (0 - 7) defined as a sum of the following values:
- • 0 - (NM owned) - the system is responsible for providing and storing this secret.
- • 1 - (agent-owned) - a user-session secret agent is responsible for providing and storing this secret; when it is required, agents will be asked to provide it.
- • 2 - (not-saved) - this secret should not be saved but should be requested from the user each time it is required.
- • 4 - (not-required) - in some situations it cannot be automatically determined that a secret is required or not. This flag hints that the secret is not required and should not be requested from the user.
FILES
/etc/NetworkManager/system-connections/*
SEE ALSO
nm-settings(5), nm-settings-ifcfg-rh(5), NetworkManager(8), NetworkManager.conf(5), nmcli(1), nmcli-examples(7)
NOTES
- 1.
-
GLib key file format
Index
This document was created by man2html, using the manual pages.
Time: 04:45:56 GMT, September 16, 2022
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