ACTIVARE INTERFATA WIFI

Pentru modulul PCI-E Broadcom  BCM43228:
Se introduc componentele contrib non-free-firmware non-free in surse:

nano /etc/apt/sources.list

Se actualizeaza sursele:

apt update

Se instaleaza linux-headers si pachetul broadcom-sta-dkms:

apt-get install linux-image-$(uname -r|sed 's,[^-]*-[^-]*-,,') linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') broadcom-sta-dkms

In felul asta se instaleaza si wireless-tools. DKMS construieste modulul wl in sistem.
Daca instalarea esueaza:

apt-get install -f 
dpkg-reconfigure broadcom-sta-dkms

Se verifica modulele instalate de DKMS in kernel. Modulul wl.ko trebuie sa fie listat:

find /lib/modules/$(uname -r)/updates

Se dezactiveaza modulele care pot creea conflicte:

modprobe -r b44 b43 b43legacy ssb brcmsmac bcma

Se incarca modulul wl.ko:

modprobe wl

In Webmin apare interfata neconfigurata:

wlp2s0      Unknown   No address configured

Se configureaza interfata wireless. Se instaleaza WPA Supplicant:

apt install wpasupplicant

Se identifica interfata wifi:

ip a

Apare ceva de genul:

…..
3: wlp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether ac:b5:7d:2f:bd:ce brd ff:ff:ff:ff:ff:ff

Interfata wifi este wlp2s0 (este DOWN = dezactivata)
Se deschide fisierul /etc/network/interfaces:

nano /etc/network/interfaces

Se introduce:

allow-hotplug wlp2s0
iface wlp2s0 inet dhcp   
    wpa-ssid SILVIA   
    wpa-psk parolaWIFI

Se reporneste serviciul networking:

systemctl restart networking.service

Se verifica daca interfata wifi este activa:

ip a

Apare ceva de genul:

3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether ac:b5:7d:2f:bd:ce brd ff:ff:ff:ff:ff:ff
inet 192.168.0.186/24 brd 192.168.0.255 scope global dynamic wlp2s0
valid_lft 6354sec preferred_lft 6354sec
inet6 fe80::aeb5:7dff:fe2f:bdce/64 scope link
valid_lft forever preferred_lft forever

Interfata este activa=UP
In Webmin interfata wireless este activa si are alocat IP:

wlp2s0  Unknown               192.168.0.186

Alte comenzi:
Listeaza interfetele de retea:

iwconfig

Scaneaza retelele wifi:

iwlist wlp2s0 scan | grep ESSID

Instaleaza Network Manager:

apt-get install network-manager

Conecteaza wifi la reteaua SILVIA_5G:

nmcli d wifi connect "SILVIA_5G" password parola

Sau prin interfata grafica:

nmtui

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