How To Find Wifi Name On Laptop

How many of you failed to connect to WiFi network in Linux? Did you bumped into issues like the followings in unlike forums, discussion folio, blogs? I am certain everyone did at some point. Following listing shows just the results from Page ane of a Google search result with "Unable to connect to WiFi network in Linux" keywords.

1. Cannot connect to wifi at dwelling house afterward upgrade to ubuntu 14.04
2. Arch Linux non connecting to Wifi anymore
3. I can't connect to my wifi
4. Cannot connect to WiFi
5. Ubuntu 13.04 can detect wi-fi only can't connect
6. Unable to connect to wireless network ath9k
7. Crazy! I can see wireless network only can't connect
8. Unable to connect to Wifi Access point in Debian 7
9. Unable to connect Wireless

Post-obit guide explains how you can connect to a WiFi network in Linux from command Line. This guide volition take you through the steps for connecting to a WPA/WPA2 WiFi network. In case y'all've merely got wired connectedness just, you lot can use this guide to setup DHCP or static IP address from command line in Linux.

WiFi network from command line – Required tools

Following tools are required to connect to WiFi network in Linux from command line

1. wpa_supplicant
2. iw
3. ip
4. ping

Before nosotros jump into technical jargons let's just quickly go over each particular at a time.

Linux WPA/WPA2/IEEE 802.1X Supplicant

wpa_supplicant is a WPA Supplicant for Linux, BSD, Mac Bone Ten, and Windows with back up for WPA and WPA2 (IEEE 802.11i / RSN). It is suitable for both desktop/laptop computers and embedded systems. Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.xi authentication/association of the wlan driver.

iw – Linux Wireless

iw is a new nl80211 based CLI configuration utility for wireless devices. It supports all new drivers that have been added to the kernel recently. The onetime tool iwconfing, which uses Wireless Extensions interface, is deprecated and it's strongly recommended to switch to iw and nl80211.

ip – ip program in Linux

ip is used to prove / manipulate routing, devices, policy routing and tunnels. Information technology is used for enabling/disabling devices and it helps you to observe general networking informations. ip was written by Alexey N. Kuznetsov and added in Linux two.two. Use human being ip to see full help/human being page.

ping

Expert old ping For every ping, there shall be a pong …. ping-pong – ping-pong – ping-pong … that should explain it.

BTW man ping helps too …

Step 1: Discover available WiFi adapters – WiFi network from command line

This actually help .. I mean you lot need to know your WiFi device name before you go an connect to a WiFi network. So just use the following command that will listing all the connected WiFi adapters in your Linux machines.

root@kali:~# iw dev phy#1     Interface wlan0         ifindex 4         type managed root@kali:~#

Let me explain the output:

This system has 1 physical WiFi adapters.

1. Designated name: phy#1
2. Device names: wlan0
3. Interface Index: four. Unremarkably as per connected ports (which can be an USB port).
4. Type: Managed. Type specifies the operational mode of the wireless devices. managed means the device is a WiFi station or client that connects to an admission point.

Step 2: Bank check device condition – WiFi network from control line

Past this fourth dimension many of you are thinking, why two network devices. The reason I am using two is considering I would like to prove how a continued and disconnected device looks like side by side. Side by side command will show you exactly that.

Yous can check that if the wireless device is upward or not using the following command:

root@kali:~# ip link show wlan0 4: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode Dormant qlen 1000     link/ether 00:60:64:37:4a:30 brd ff:ff:ff:ff:ff:ff root@kali:~#        

As you can already see, I got one time interface (wlan0) as land Upwards and wlan1 as state Downwardly.

Wait for the word "UP" inside the brackets in the first line of the output.

In the above example, wlan1 is not UP. Execute the post-obit command to

Step three: Bring up the WiFi interface – WiFi network from command line

Apply the following command to bring upwards the WiFI interface

root@kali:~# ip link set wlan0 up

Note: If you lot're using Ubuntu, Linux Mint, CentOS, Fedora etc. use the control with 'sudo' prefix

If yous run the show link command again, y'all tin tell that wlan1 is now Up.

root@kali:~# ip link testify wlan0 4: wlan0: <Circulate,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT qlen g     link/ether 00:lx:64:37:4a:30 brd ff:ff:ff:ff:ff:ff root@kali:~#        

Step 4: Check the connection status – WiFi network from command line

You can check WiFi network connectedness status from control line using the following command

root@kali:~# iw wlan0 link Not continued. root@kali:~#        

The higher up output shows that yous are not connected to any network.

Step five: Scan to find WiFi Network – WiFi network from control line

Scan to find out what WiFi network(s) are detected

root@kali:~# iw wlan0 browse BSS 9c:97:26:de:12:37 (on wlan0)     TSF: 5311608514951 usec (61d, xi:26:48)     freq: 2462     buoy interval: 100     capability: ESS Privacy ShortSlotTime (0x0411)     signal: -53.00 dBm      last seen: 104 ms agone     Data elements from Probe Response frame:     SSID: blackMOREOps     Supported rates: one.0* two.0* v.5* 11.0* 18.0 24.0 36.0 54.0      DS Parameter set: aqueduct 11     ERP: Barker_Preamble_Mode     RSN:     * Version: ane          * Grouping cipher: CCMP          * Pairwise ciphers: CCMP          * Authentication suites: PSK          * Capabilities: xvi-PTKSA-RC (0x000c)     Extended supported rates: six.0 9.0 12.0 48.0  ---- truncated ----

The two of import pieces of information from the above are the SSID and the security protocol (WPA/WPA2 vs WEP). The SSID from the above example is blackMOREOps. The security protocol is RSN, also commonly referred to equally WPA2. The security protocol is important because it determines what tool yous use to connect to the network.

— following image is a sample only —

Step 6: Generate a wpa/wpa2 configuration file – WiFi network from command line

Now we will generate a configuration file for wpa_supplicant that contains the pre-shared fundamental ("passphrase") for the WiFi network.

root@kali:~# wpa_passphrase blackMOREOps >> /etc/wpa_supplicant.conf abcd1234 root@kali:~# (where 'abcd1234' was the Network password)

wpa_passphrase uses SSID as a string, that means you need to type in the passphrase for the WiFi network blackMOREOps after you run the command.

Note: If you're using Ubuntu, Linux Mint, CentOS, Fedora etc. apply the command with 'sudo' prefix

wpa_passphrase will create the necessary configuration entries based on your input. Each new network will exist added as a new configuration (it wont replace existing configurations) in the configurations file /etc/wpa_supplicant.conf.

root@kali:~# cat /etc/wpa_supplicant.conf  # reading passphrase from stdin network={  ssid="blackMOREOps"  #psk="abcd1234"  psk=42e1cbd0f7fbf3824393920ea41ad6cc8528957a80a404b24b5e4461a31c820c } root@kali:~#        

Step 7: Connect to WPA/WPA2 WiFi network – WiFi network from command line

Now that we have the configuration file, nosotros can utilize it to connect to the WiFi network. We will be using wpa_supplicant to connect. Use the following command

root@kali:~# wpa_supplicant -B -D wext -i wlan0 -c /etc/wpa_supplicant.conf ioctl[SIOCSIWENCODEEXT]: Invalid argument  ioctl[SIOCSIWENCODEEXT]: Invalid statement  root@kali:~#

Where,

• -B means run wpa_supplicant in the background.
• -D specifies the wireless driver. wext is the generic driver.
• -c specifies the path for the configuration file.

Employ the iw command to verify that yous are indeed connected to the SSID.

root@kali:~# iw wlan0 link Connected to 9c:97:00:aa:11:33 (on wlan0)     SSID: blackMOREOps     freq: 2412     RX: 26951 bytes (265 packets)     TX: 1400 bytes (xiv packets)     signal: -51 dBm     tx bitrate: 6.five MBit/due south MCS 0      bss flags:    brusque-slot-time     dtim period:    0     beacon int:    100        

Step viii: Get an IP using dhclient – WiFi network from control line

Until stride vii, we've spent time connecting to the WiFi network. Now apply dhclient to get an IP accost past DHCP

root@kali:~# dhclient wlan0 Reloading /etc/samba/smb.conf: smbd simply. root@kali:~#

You can use ip or ifconfig command to verify the IP address assigned past DHCP. The IP address is 10.0.0.iv from below.

root@kali:~# ip addr bear witness wlan0 four: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state Up qlen one thousand     link/ether 00:60:64:37:4a:30 brd ff:ff:ff:ff:ff:ff     inet 10.0.0.iv/24 brd ten.0.0.255 scope global wlan0        valid_lft forever preferred_lft forever     inet6 fe80::260:64ff:fe37:4a30/64 scope link         valid_lft forever preferred_lft forever root@kali:~#   (or)  root@kali:~# ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr 00:60:64:37:4a:30   inet addr:x.0.0.four Bcast:10.0.0.255 Mask:255.255.255.0  inet6 addr: fe80::260:64ff:fe37:4a30/64 Telescopic:Link  Upwardly Broadcast RUNNING MULTICAST MTU:1500 Metric:one  RX packets:23868 errors:0 dropped:0 overruns:0 frame:0  TX packets:23502 errors:0 dropped:0 overruns:0 carrier:0  collisions:0 txqueuelen:grand   RX bytes:22999066 (21.9 MiB) TX bytes:5776947 (five.5 MiB)  root@kali:~#        

Add default routing dominion.The last configuration footstep is to make sure that you take the proper routing rules.

root@kali:~# ip route show  default via ten.0.0.138 dev wlan0  ten.0.0.0/24 dev wlan0  proto kernel  scope link  src x.0.0.4        

Step 9: Exam connectivity – WiFi network from command line

Ping Google's IP to confirm network connection (or you tin can but browse?)

root@kali:~# ping 8.8.eight.8 PING 8.eight.8.viii (eight.8.8.8) 56(84) bytes of data. 64 bytes from eight.8.viii.8: icmp_req=three ttl=42 time=265 ms 64 bytes from viii.8.8.viii: icmp_req=4 ttl=42 time=176 ms 64 bytes from eight.eight.8.8: icmp_req=5 ttl=42 time=174 ms 64 bytes from 8.eight.eight.8: icmp_req=6 ttl=42 time=174 ms ^C --- eight.viii.viii.8 ping statistics --- half dozen packets transmitted, 4 received, 33% packet loss, time 5020ms rtt min/avg/max/mdev = 174.353/197.683/265.456/39.134 ms root@kali:~#        

Conclusion

This is a very detailed and long guide. Here is a curt summary of all the things you lot need to exercise in simply few line.

root@kali:~# iw dev root@kali:~# ip link set wlan0 up root@kali:~# iw wlan0 scan root@kali:~# wpa_passphrase blackMOREOps >> /etc/wpa_supplicant.conf root@kali:~# wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf root@kali:~# iw wlan0 link root@kali:~# dhclient wlan0 root@kali:~# ping 8.8.8.8 (Where wlan0 is wifi adapter and blackMOREOps is SSID) (Add Routing manually) root@kali:~# ip road add default via 10.0.0.138 dev wlan0

At the cease of it, you should be able to connect to WiFi network. Depending on the Linux distro you lot are using and how things become, your commands might be slightly different. Edit commands every bit required to meet your needs. Thanks for reading. Please share and tweet.

Source: https://www.blackmoreops.com/2014/09/18/connect-to-wifi-network-from-command-line-in-linux/

Posted by: halcombruimilot.blogspot.com

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