|CONNMAN(8)||System Manager's Manual||CONNMAN(8)|
ConnMan - network management daemon
connmand [-c file] [-d [file[,...]]] [-i interface[,...]] [-I interface[,...]] [-W driver[,...]] [-p plugin[,...]] [-P plugin[,...]] [-n] [-r]
The ConnMan provides a daemon for managing internet connections within devices running the Linux operating system. The Connection Manager is designed to be slim and to use as few resources as possible. It is a fully modular system that can be extended, through plug-ins, to support all kinds of wired or wireless technologies. Also, configuration methods, like DHCP and domain name resolving, are implemented using plug-ins. The plug-in approach allows for easy adaption and modification for various use cases.
The following options are supported:
- -v, --version
- Print the ConnMan software version and exit.
- -h, --help
- Print ConnMan's available options and exit.
- -c file, --config=file
- Specify configuration file to set up various settings for ConnMan. If not specified, the default value of /etc/connman/main.conf is used. See connman.conf(5) for more information on configuration file. The use of config file is optional and sane default values are used if config file is missing.
- -d [file[,...]], --debug[=file[,...]]
- Sets how much information ConnMan sends to the log destination (usually syslog's "daemon" facility). If the file options are omitted, then debugging information from all the source files are printed. If file options are present, then only debug prints from that source file are printed. Example:
- -i interface[,...], --device=interface[,...]
- Only manage these network interfaces. By default all network interfaces are managed.
- -I interface[,...], --nodevice=interface[,...]
- Never manage these network interfaces.
- -p plugin[,...], --plugin=plugin[,...]
- Load these plugins only. The option can be a pattern containing "*" and "?" characters.
- -P plugin[,...], --noplugin=plugin[,...]
- Never load these plugins. The option can be a pattern containing "*" and "?" characters.
- -W driver[,...], --wifi=driver[,...]
- Wifi driver that WiFi/Supplicant should use. If this flag is omitted, then the value "nl80211,wext" is used by default.
- -n, --nobacktrace
- Don't print out backtrace information.
- -n, --nodaemon
- Do not daemonize. This is useful for debugging, and directs log output to the controlling terminal in addition to syslog.
- -r, --nodnsproxy
- Do not act as a DNS proxy or support external DNS resolving. Depending on how ConnMan is compiled, it will by default direct all DNS traffic to itself by setting nameserver to 127.0.0.1 in resolv.conf(5) file or leave DNS management to an external entity, such as systemd-resolved. If this is not desired and you want that all programs call directly some DNS server, then you can use the --nodnsproxy option. If this option is used, then ConnMan is not able to cache the DNS queries because the DNS traffic is not going through ConnMan and that can cause some extra network traffic.
connmanctl(1), connman.conf(5), connman-service.config(5), connman-vpn(8)