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| dcore:wireless_set-up [2017/09/18 15:31] – [Driver of wpa_supplicant] sm8ps | dcore:wireless_set-up [2017/09/18 16:19] (current) – [Configure wireless network] sm8ps |
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| *Optional step for determining the available wireless networks: issue ''sudo iwlist scanning | less'' and search for "ESSID" | *Optional step for determining the available wireless networks: issue ''sudo iwlist scanning | less'' and search for "ESSID" |
| *Create a file '/etc/wpa_supplicant /wpa_supplicant.conf' to contain the following and ''chmod'' it to 600-permissions. | *Create a file '/etc/wpa_supplicant.conf' to contain the following and ''chmod'' it to 600-permissions. |
| <code> | <code> |
| network={ | network={ |
| } | } |
| </code> | </code> |
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| | Alternatively, one may use 'wifi.sh' which will create the file with the password hashed. The clear-text password is commented out and may be deleted. |
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| == Set-up key file by use of WPA-cli== | == Set-up key file by use of WPA-cli== |
| Following the excellent presentation in the [[https://wiki.archlinux.org/index.php/WPA_supplicant|Archlinux wiki]], this procedure will automate the writing of the configuration file by use of the semi-interactive tool 'wpa_cli'. It has quite an impressive list of features and probably can be helpful in many kinds of situations; ''wpa_cli --help'' gives a complete list of available commands. | Following the excellent presentation in the [[https://wiki.archlinux.org/index.php/WPA_supplicant|Archlinux wiki]], this procedure will automate the writing of the configuration file by use of the semi-interactive tool 'wpa_cli'. It has quite an impressive list of features and probably can be helpful in many kinds of situations; ''wpa_cli --help'' gives a complete list of available commands. |
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| In order to use WPA-cli, a control interface must be specified for WPA-supplicant, and it must be given the rights to update the configuration. Do this by creating a minimal configuration file '/etc/wpa_supplicant/wpa_supplicant.conf' with 600-permissions. | In order to use WPA-cli, a control interface must be specified for WPA-supplicant, and it must be given the rights to update the configuration. Do this by creating a minimal configuration file '/etc/wpa_supplicant.conf' with 600-permissions. |
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| <code> | <code> |
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| <code> | <code> |
| sudo wpa_supplicant -B -i <IF> -c /etc/wpa_supplicant/wpa_supplicant.conf | sudo wpa_supplicant -B -i <IF> -c /etc/wpa_supplicant.conf |
| sudo wpa_cli | sudo wpa_cli |
| </code> | </code> |
| ==Connect to the network== | ==Connect to the network== |
| <code> | <code> |
| sudo wpa_supplicant -i <IF> -c /etc/wpa_supplicant/wpa_supplicant.conf & | sudo wpa_supplicant -i <IF> -c /etc/wpa_supplicant.conf & |
| </code> | </code> |
| connects to the network. ''iwconfig'' should then show the connection. | connects to the network. ''iwconfig'' should then show the connection. |
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| <code> | <code> |
| sudo udhcpc -b -i <IF> -x hostname <HOSTNAME> -p /var/run/udhcpc.wlan0.pid' | sudo udhcpc -b -i <IF> -x hostname <HOSTNAME> -p /var/run/udhcpc.<IF>.pid' |
| </code> | </code> |
| acquires a DHCP-lease. 'ifconfig' should then show the IP-address as "inet addr". | acquires a DHCP-lease. 'ifconfig' should then show the IP-address as "inet addr". |
| ==Persistence== | ==Persistence== |
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| The configuration file can be made persistent by adding "/etc/wpa_supplicant/wpa_supplicant.conf" to '/opt/bootlocal.sh' and issue ''backup''. | The configuration file can be made persistent by adding "/etc/wpa_supplicant.conf" to '/opt/.filetool.lst' and issueing ''backup''. |
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| Note that the folder '/etc/wpa_supplicant' will be mounted from the wireless extension as an overlay-filesystem, though that does not interfere with the configuration file. | Note that the folder '/etc/wpa_supplicant' will be mounted from the wireless extension as an overlay-filesystem, though that does not interfere with the configuration file. |
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| <code> | <code> |
| /sbin/wpa_supplicant -B -i <IF> -c /etc/wpa_supplicant/wpa_supplicant.conf | /sbin/wpa_supplicant -B -i <IF> -c /etc/wpa_supplicant.conf |
| /bb/udhcpc -b -i <IF> -x hostname $(hostname) -p /var/run/udhcpc.wlan0.pid | /bb/udhcpc -b -i <IF> -x hostname $(hostname) -p /var/run/udhcpc.<IF>.pid |
| </code> | </code> |
| If Syslog is running, one may want to add the option ''-s'' for WPA-supplicant and ''-S > /dev/null 2>&1'' for UDHCP-client. | If Syslog is running, one may want to add the option ''-s'' for WPA-supplicant and ''-S > /dev/null 2>&1'' for UDHCP-client. |
