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Thread: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

  1. #1821
    Join Date
    Feb 2012
    Beans
    22

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    WIreless Security is always been one of the main issues with us and this issue becomes more complicated for the newbies, Thanks for the guide of the wireless security!! WPA 2 , is always been my main concerned one to think about!!

  2. #1822
    Join Date
    Sep 2007
    Beans
    136

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    i too am also trying to get the wireless working on my ubuntu server.

    i followed you beginning tutorial and i am still not connecting.

    iwconfig shows the ESSID

    however, when i enter in

    /etc/init.d/networking restart

    i get the following message

    wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
    run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
    I know the wireless works because I was using it when I had the machine running the Ubuntu Desktop.

    I am also using WPA and TKIP with the static addressing.

    any ideas why?
    I got Questions. I hope you have answers!

  3. #1823
    Join Date
    Mar 2007
    Location
    Denver, CO
    Beans
    7,585
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    @moose4204

    Please share your configuration file so we can take a look at it

  4. #1824
    Join Date
    Aug 2012
    Beans
    5

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Hello Guys.

    I'm trying to configure my wireless connection on my server but something weird is happening.
    I have two cards on my server, one wired and another one wireless.
    After set up all the setting of wpa_supplicant and execute the commands to connect, the wlan0 network get IP and connected on my AP.
    But, when I log into my AP and ask to list all attached devices, I see the wlan0 card connected with the same MAC Address from the wired card. And if I unplug the network cabe from eth0, both connections goes down.

    I will sent the steps that I followed with my configuration files to see if you can help me, please.

    root@server:~# ifconfig
    eth0 Link encap:Ethernet HWaddr 00:08:54:21:27:1f
    inet addr:192.168.1.9 Bcast:192.168.1.255 Mask:255.255.255.0
    inet6 addr: fe80::208:54ff:fe21:271f/64 Scope:Link
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:1116 errors:0 dropped:0 overruns:0 frame:0
    TX packets:517 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:106880 (106.8 KB) TX bytes:80933 (80.9 KB)
    Interrupt:19 Base address:0x2c00

    lo Link encap:Local Loopback
    inet addr:127.0.0.1 Mask:255.0.0.0
    inet6 addr: ::1/128 Scope:Host
    UP LOOPBACK RUNNING MTU:16436 Metric:1
    RX packets:16 errors:0 dropped:0 overruns:0 frame:0
    TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:1524 (1.5 KB) TX bytes:1524 (1.5 KB)

    wlan0 Link encap:Ethernet HWaddr 00:06:4f:70:f8:c8
    inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
    inet6 addr: fe80::206:4fff:fe70:f8c8/64 Scope:Link
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:130 errors:0 dropped:0 overruns:0 frame:0
    TX packets:122 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:19857 (19.8 KB) TX bytes:21919 (21.9 KB)

    root@server:~#

    Follow the steps:

    ifconfig wlan0 up
    ifconfig
    wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf -B
    ifconfig
    ps aux | grep [w]pa
    iwconfig wlan0
    dhclient wlan0

    root@server:~# cat /etc/wpa_supplicant/wpa_supplicant.conf
    ctrl_interface=/var/run/wpa_supplicant
    network={
    ssid="AP-NOVO"
    scan_ssid=1
    proto=WPA
    key_mgmt=WPA-PSK
    #psk="H3l0m0t0"
    psk=11b00480d2b7b625fe893385ff627f55780afb3348f91a 6685d9b5000c1fa0f9
    }
    root@server:~#

    root@server:~# cat /etc/network/interfaces
    # This file describes the network interfaces available on your system
    # and how to activate them. For more information, see interfaces(5).

    # The loopback network interface
    auto lo
    iface lo inet loopback

    # The primary network interface
    auto eth0
    iface eth0 inet dhcp

    #wireless
    auto wlan0
    iface wlan0 inet dhcp


    Follow the output of the attached devices from router:

    3 192.168.1.9 SERVER 00:08:54:21:27:1F
    4 192.168.1.10 SERVER 00:08:54:21:27:1F

    if you can see, the MAC is the same of the eth0.

    What is wrong? I want to use only the wireless card..is it possible, right?

    I'm running ubutu 12.04.

    Thanks in advanced by any help.

  5. #1825
    Join Date
    Mar 2010
    Beans
    13

    Question HIDDEN SSID, what can I do?

    Hi!

    I have only CLI access to a machine, I want to config to connect to a Hidden SSID AP, but it can't. It works with SSID boardcast.

    The config (/etc/network/interfaces):

    Code:
    auto wlan0
    iface wlan0 inet dhcp
    	wpa-ssid <name>
    	wpa-psk <hex>
    It works with SSID boardcast. If I hide SSID, and add this line, it don't want to work.
    Code:
    wpa-ap-scan 2
    What else must I add to work?

    Thank you!

    UPDATE: I've found a solution here.
    Last edited by Rolandmaffia; September 17th, 2012 at 07:52 PM. Reason: SOLUTION

  6. #1826
    Join Date
    May 2006
    Location
    100acrewood
    Beans
    7,482
    Distro
    Kubuntu 14.04 Trusty Tahr

    Re: HIDDEN SSID, what can I do?

    I know this might not be a satisfying answer, but hiding the SSID adds no extra security. You might want to broadcast it and take the path of least resistance.

  7. #1827
    Join Date
    Jan 2013
    Beans
    1

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Thank you so much. I spent all day trying to get the wireless working on my acer aspire one (the mini kind) with ubuntu 12.04.1 web server. With this guide I was able to do it. Very helpful. Like the Chinese character too.

  8. #1828
    Join Date
    May 2006
    Location
    100acrewood
    Beans
    7,482
    Distro
    Kubuntu 14.04 Trusty Tahr

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    You're welcome. I am amazed this still works after so many year. Rock on!

  9. #1829
    Join Date
    Apr 2013
    Beans
    1

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    I followed the steps on the first page of this thread, but ran into problems.

    Below are the output from the "Follow if you're stumped" section

    # route
    Kernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface
    default 192.168.1.1 0.0.0.0 UG 100 0 0 eth0
    link-local * 255.255.0.0 U 1000 0 0 eth0
    192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
    192.168.1.0 * 255.255.255.0 U 0 0 0 wlan0
    # iwconfig
    wlan0 IEEE 802.11bg ESSIDff/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementff


    # sudo iwlist scan
    wlan0 Scan completed : Cell 01 - Address: 00:7F:28:239:B3
    Channel:11
    Frequency:2.462 GHz (Channel 11)
    Quality=55/70 Signal level=-55 dBm
    Encryption keyn
    ESSID:"VPCC5"
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
    9 Mb/s; 12 Mb/s; 18 Mb/s
    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
    Mode:Master
    Extra:tsf=0000000b93772ab2
    Extra: Last beacon: 440ms ago
    IE: Unknown: 00055650434335
    IE: Unknown: 010882848B960C121824
    IE: Unknown: 03010B
    IE: Unknown: 200100
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : CCMP
    Pairwise Ciphers (1) : CCMP
    Authentication Suites (1) : PSK
    IE: Unknown: 2A0100
    IE: Unknown: 32043048606C
    IE: Unknown: DD180050F2020101040003A4000027A4000042435E0062322F 00
    IE: Unknown: 2D1A8C131BFFFF000000000000000000000000000000000000 000000
    IE: Unknown: 3D160B001B00000000000000000000000000000000000000
    IE: Unknown: DD0900037F01010000FF7F
    IE: Unknown: DD0A00037F04010000000000
    IE: Unknown: 0706555320010B1B
    Cell 02 - Address: 2C:B0:5DC:1D:AC
    Channel:11
    Frequency:2.462 GHz (Channel 11)
    Quality=30/70 Signal level=-80 dBm
    Encryption keyn
    ESSID:"Clark"
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
    24 Mb/s; 36 Mb/s; 54 Mb/s
    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
    Mode:Master
    Extra:tsf=0000000000000000
    Extra: Last beacon: 444ms ago
    IE: Unknown: 0005436C61726B
    IE: Unknown: 010882848B962430486C
    IE: Unknown: 03010B
    IE: Unknown: 2A0100
    IE: Unknown: 2F0100
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : CCMP TKIP
    Authentication Suites (1) : PSK
    IE: Unknown: 32040C121860
    IE: Unknown: 2D1A7C181BFFFF000000000000000000000000000000000000 000000
    IE: Unknown: 3D160B081100000000000000000000000000000000000000
    IE: Unknown: DD760050F204104A0001101044000102103B00010310470010 340F266D809B77AB54465617608B1C06102100074E65746765 6172102300074E657467656172102400063132333435361042 0007303030303030311054000800060050F204000110110009 4E6574676561724150100800020088103C000101
    IE: Unknown: DD090010180200F00C0000
    IE: WPA Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : CCMP TKIP
    Authentication Suites (1) : PSK
    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F 00


    # sudo lshw -C network
    *-network description: Wireless interface
    product: RT2500 Wireless 802.11bg
    vendor: Ralink corp.
    physical id: 8
    bus info: pci@0000:01:08.0
    logical name: wlan0
    version: 01
    serial: 00:16:b6:57:47:81
    width: 32 bits
    clock: 33MHz
    capabilities: pm bus_master cap_list ethernet physical wireless
    configuration: broadcast=yes driver=rt2500pci driverversion=3.2.0-34-generic firmware=N/A ip=192.168.1.23 latency=32 link=no multicast=yes wireless=IEEE 802.11bg

    resources: irq:16 memory:fdffe000-fdffffff


    # sudo cat /etc/network/interfaces
    auto loiface lo inet loopback


    auto eth0
    iface eth0 inet static
    address 192.168.1.2
    netmask 255.255.255.0
    gateway 192.168.1.1


    auto wlan0
    iface wlan0 inet static
    address 192.168.1.23
    gateway 192.168.1.1
    netmask 255.255.255.0
    wpa-driver wext
    wpa-ssid VPCC5
    wpa-ap-scan 1
    wpa-proto RSN
    wpa-pairwise CCMP
    wpa-group CCMP
    wpa-key-mgmt WPA-PSK
    wpa-psk WPA-PSKHEX


    # sudo ifdown -v <your_interface>
    ifdown: interface wlan0 not configured


    # sudo ifup -v <your_interface>
    Failed to bring up wlan0.supplicant -s -B -P /var/run/wpa_supplicant.wlan0.pid -i wlan0 -D wext -C /var/run/wpa_supplicant
    Configuring interface wlan0=wlan0 (inet)
    run-parts --verbose /etc/network/if-pre-up.d
    run-parts: executing /etc/network/if-pre-up.d/wireless-tools
    run-parts: executing /etc/network/if-pre-up.d/wpasupplicant
    ioctl[SIOCSIWENCODEEXT]: Invalid argument
    ioctl[SIOCSIWENCODEEXT]: Invalid argument
    wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
    run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
    ip addr add 192.168.1.23/255.255.255.0 broadcast + dev wlan0 label wlan0

    RTNETLINK answers: File exists




  10. #1830
    Join Date
    Apr 2006
    Location
    New Hampshire, U.S.A.
    Beans
    2,529
    Distro
    Ubuntu Development Release

    Re: HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

    Raring Ringtail on every boot (with U+1 I do a lot of boots) does not automatically connect to WPA wireless.

    Raring invariably lways "disconnects" on boot. Systems Settings Network says "out of range" obviously tried to connect without the encryption key it already has. Manually select drop down window, shows the correct network, select it, and after a while presents a drop down with all the required info, and waits for me to select it. I do, and after a while it connects. Syslog has some network manager messages about "secrets required" and is oblivious to the "secrets" network manager already has.

    Pangolin on the same pc and netowrk connects autmatically, might take a couple seconds. Raring doesn't connect, as a matter of Network Manager policy.

    Android tablets on the same network (7" and 10.1") set up encryption once and they connect immediately. Every time. Raring doesn't.

    Chromebook boots, zooms up, connects, and bam into the internet. Once encryption is set up always boots right up, using the info, no manual intervention required.

    Launchpad bug#1097002. Apparently not considered a bug, just the way Ubuntu Raring network manager has decided to slow down boot.

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