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• Cannot connect to secure wireless with Netgear wna3100 USB

  - by Vince Radice

  I have installed Ubuntu 11.10. I used a wired connection to download and install all of the updates. When I tried to use a Netgear WNA3100 wireless USB network adapter, it failed. Much searching and trying things I was finally able to get it working by disabling security on my router. I have verified this by disabling security and I was able to connect. When I enabled security (WPA2 PSK), the connection failed. What is necessary to enable security (WPA2 PSK) and still use the Netgear USB interface? Here is the output from the commands most requested lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 0846:9020 NetGear, Inc. WNA3100(v1) Wireless-N 300 [Broadcom BCM43231] lshw -C network *-network description: Ethernet interface product: RTL-8139/8139C/8139C+ vendor: Realtek Semiconductor Co., Ltd. physical id: 3 bus info: pci@0000:02:03.0 logical name: eth0 version: 10 serial: 00:40:ca:44:e6:3e size: 10Mbit/s capacity: 100Mbit/s width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=half latency=32 link=no maxlatency=64 mingnt=32 multicast=yes port=MII speed=10Mbit/s resources: irq:19 ioport:c800(size=256) memory:ee011000-ee0110ff memory:40000000-4000ffff *-network description: Wireless interface physical id: 1 logical name: wlan0 serial: e0:91:f5:56:e1:0d capabilities: ethernet physical wireless configuration: broadcast=yes driver=ndiswrapper+bcmn43xx32 driverversion=1.56+,08/26/2009, 5.10.79.30 ip=192.168.1.104 link=yes multicast=yes wireless=IEEE 802.11g iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11g ESSID:"vincecarolradice" Mode:Managed Frequency:2.422 GHz Access Point: A0:21:B7:9F:E5:EE Bit Rate=121.5 Mb/s Tx-Power:32 dBm RTS thr:2347 B Fragment thr:2346 B Encryption key:off Power Management:off Link Quality:76/100 Signal level:-47 dBm Noise level:-96 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 ndiswrapper -l bcmn43xx32 : driver installed device (0846:9020) present lsmod | grep ndis ndiswrapper 193669 0 dmesg | grep -e ndis -e wlan [ 907.466392] ndiswrapper version 1.56 loaded (smp=yes, preempt=no) [ 907.838507] ndiswrapper (import:233): unknown symbol: ntoskrnl.exe:'IoUnregisterPlugPlayNotification' [ 907.838955] ndiswrapper: driver bcmwlhigh5 (Netgear,11/05/2009, 5.60.180.11) loaded [ 908.137940] wlan0: ethernet device e0:91:f5:56:e1:0d using NDIS driver: bcmwlhigh5, version: 0x53cb40b, NDIS version: 0x501, vendor: 'NDIS Network Adapter', 0846:9020.F.conf [ 908.141879] wlan0: encryption modes supported: WEP; TKIP with WPA, WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK [ 908.143048] usbcore: registered new interface driver ndiswrapper [ 908.178826] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 994.015088] usbcore: deregistering interface driver ndiswrapper [ 994.028892] ndiswrapper: device wlan0 removed [ 994.080558] ndiswrapper version 1.56 loaded (smp=yes, preempt=no) [ 994.374929] ndiswrapper: driver bcmn43xx32 (,08/26/2009, 5.10.79.30) loaded [ 994.404366] ndiswrapper (mp_init:219): couldn't initialize device: C0000001 [ 994.404384] ndiswrapper (pnp_start_device:435): Windows driver couldn't initialize the device (C0000001) [ 994.404666] ndiswrapper (mp_halt:262): device e05b6480 is not initialized - not halting [ 994.404671] ndiswrapper: device eth%d removed [ 994.404709] ndiswrapper: probe of 1-5:1.0 failed with error -22 [ 994.406318] usbcore: registered new interface driver ndiswrapper [ 2302.058692] wlan0: ethernet device e0:91:f5:56:e1:0d using NDIS driver: bcmn43xx32, version: 0x50a4f1e, NDIS version: 0x501, vendor: 'NDIS Network Adapter', 0846:9020.F.conf [ 2302.060882] wlan0: encryption modes supported: WEP; TKIP with WPA, WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK [ 2302.113838] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 2354.611318] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 2355.268902] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 2365.400023] wlan0: no IPv6 routers present [ 2779.226096] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 2779.422343] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 2797.574474] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 2802.607937] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 2803.261315] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 2813.952028] wlan0: no IPv6 routers present [ 3135.738431] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 3139.180963] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3139.816561] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3163.229872] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3163.444542] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3163.758297] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3163.860684] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3205.118732] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3205.139553] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3205.300542] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3353.341402] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 3363.266399] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3363.505475] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3363.506619] ndiswrapper (set_iw_auth_mode:601): setting auth mode to 5 failed (00010003) [ 3363.717203] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3363.779206] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3405.206152] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3405.248624] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3405.577664] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3438.852457] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 3438.908573] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3568.282995] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3568.325237] ndiswrapper (set_iw_auth_mode:601): setting auth mode to 5 failed (00010003) [ 3568.460716] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3568.461763] ndiswrapper (set_iw_auth_mode:601): setting auth mode to 5 failed (00010003) [ 3568.809776] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3568.880641] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3610.122848] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3610.148328] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3610.324502] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3636.088798] ndiswrapper (iw_set_auth:1602): invalid cmd 12 [ 3636.712186] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 3647.600040] wlan0: no IPv6 routers present I am using the system now with the router security turned off. When I submit this, I will turn security back on.

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• Wireless not working on Dell XPS 17 after installing 12.04

  - by user60622

  I (linux newbie) have a Dell XPS 17 and tried to install Ubuntu 12.04. After installation all WLAN accesspoints near are detected. But I can not connect (but I am able to connect with other computers as well as with Dell XPS 17 under windows). Outputs: iwconfig lo no wireless extensions. wlan0 IEEE 802.11bg ESSID:"LerchenPoint" Mode:Managed Frequency:2.412 GHz Access Point: 58:6D:8F:A0:2D:58 Bit Rate=1 Mb/s Tx-Power=14 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-37 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:19 Missed beacon:0 eth0 no wireless extensions. sudo lshw -class network *-network description: Wireless interface product: Centrino Wireless-N 1000 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlan0 version: 00 serial: 00:26:c7:99:98:28 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-24-generic firmware=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bg resources: irq:50 memory:f0400000-f0401fff *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:0a:00.0 logical name: eth0 version: 06 serial: f0:4d:a2:56:e3:94 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw ip=192.168.0.123 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:47 ioport:6000(size=256) memory:f0a04000-f0a04fff memory:f0a00000-f0a03fff dmesg | grep iwl [ 10.157531] iwlwifi 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 10.157561] iwlwifi 0000:04:00.0: setting latency timer to 64 [ 10.157598] iwlwifi 0000:04:00.0: pci_resource_len = 0x00002000 [ 10.157599] iwlwifi 0000:04:00.0: pci_resource_base = ffffc90011090000 [ 10.157601] iwlwifi 0000:04:00.0: HW Revision ID = 0x0 [ 10.157731] iwlwifi 0000:04:00.0: irq 50 for MSI/MSI-X [ 10.157834] iwlwifi 0000:04:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C [ 10.157976] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 10.179772] iwlwifi 0000:04:00.0: device EEPROM VER=0x15d, CALIB=0x6 [ 10.179775] iwlwifi 0000:04:00.0: Device SKU: 0X50 [ 10.179777] iwlwifi 0000:04:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3 [ 10.179796] iwlwifi 0000:04:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels [ 10.574728] iwlwifi 0000:04:00.0: loaded firmware version 39.31.5.1 build 35138 [ 10.726409] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 19.714132] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 19.777862] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 2251.603089] iwlwifi 0000:04:00.0: PCI INT A disabled [ 2266.578350] iwlwifi 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 2266.578399] iwlwifi 0000:04:00.0: setting latency timer to 64 [ 2266.578435] iwlwifi 0000:04:00.0: pci_resource_len = 0x00002000 [ 2266.578437] iwlwifi 0000:04:00.0: pci_resource_base = ffffc90011090000 [ 2266.578439] iwlwifi 0000:04:00.0: HW Revision ID = 0x0 [ 2266.578704] iwlwifi 0000:04:00.0: irq 50 for MSI/MSI-X [ 2266.578808] iwlwifi 0000:04:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C [ 2266.578916] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 2266.600709] iwlwifi 0000:04:00.0: device EEPROM VER=0x15d, CALIB=0x6 [ 2266.600712] iwlwifi 0000:04:00.0: Device SKU: 0X50 [ 2266.600713] iwlwifi 0000:04:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3 [ 2266.600727] iwlwifi 0000:04:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels [ 2266.605978] iwlwifi 0000:04:00.0: loaded firmware version 39.31.5.1 build 35138 [ 2266.606331] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 2266.614179] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 2266.681541] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S Solutions I tried: rfkill list all 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf options iwlwifi 11n_disable=1 sudo modprobe -rfv iwlwifi WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release. rmmod /lib/modules/3.2.0-24-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko rmmod /lib/modules/3.2.0-24-generic/kernel/net/mac80211/mac80211.ko rmmod /lib/modules/3.2.0-24-generic/kernel/net/wireless/cfg80211.ko sudo modprobe iwlwifi WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release. replacing iwlwifi-1000-5.ucode (current driver) against iwlwifi-1000-3.ucode sudo jockey-gtk: (jockey-gtk:2493): Gtk-CRITICAL **: gtk_icon_set_render_icon_pixbuf: assertion icon_set != NULL' failed (jockey-gtk:2493): Gtk-CRITICAL **: gtk_icon_set_render_icon_pixbuf: assertion icon_set != NULL' failed nothing is listet in "Additional drivers" (german: "Zusätzliche Treiber"). gksudo gedit /etc/modprobe.d/blacklist.conf add "blacklist acer_wmi" Any help would be appreciated very much. Thanks!!

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• The Joy Of Hex

  - by Jim Giercyk

  While working on a mainframe integration project, it occurred to me that some basic computer concepts are slipping into obscurity. For example, just about anyone can tell you that a 64-bit processor is faster than a 32-bit processer. A grade school child could tell you that a computer “speaks” in ‘1’s and ‘0’s. Some people can even tell you that there are 8 bits in a byte. However, I have found that even the most seasoned developers often can’t explain the theory behind those statements. That is not a knock on programmers; in the age of IntelliSense, what reason do we have to work with data at the bit level? Many computer theory classes treat bit-level programming as a thing of the past, no longer necessary now that storage space is plentiful. The trouble with that mindset is that the world is full of legacy systems that run programs written in the 1970’s.  Today our jobs require us to extract data from those systems, regardless of the format, and that often involves low-level programming. Because it seems knowledge of the low-level concepts is waning in recent times, I thought a review would be in order.       CHARACTER: See Spot Run HEX: 53 65 65 20 53 70 6F 74 20 52 75 6E DECIMAL: 83 101 101 32 83 112 111 116 32 82 117 110 BINARY: 01010011 01100101 01100101 00100000 01010011 01110000 01101111 01110100 00100000 01010010 01110101 01101110 In this example, I have broken down the words “See Spot Run” to a level computers can understand – machine language.     CHARACTER:  The character level is what is rendered by the computer.  A “Character Set” or “Code Page” contains 256 characters, both printable and unprintable.  Each character represents 1 BYTE of data.  For example, the character string “See Spot Run” is 12 Bytes long, exclusive of the quotation marks.  Remember, a SPACE is an unprintable character, but it still requires a byte.  In the example I have used the default Windows character set, ASCII, which you can see here:  http://www.asciitable.com/ HEX:  Hex is short for hexadecimal, or Base 16.  Humans are comfortable thinking in base ten, perhaps because they have 10 fingers and 10 toes; fingers and toes are called digits, so it’s not much of a stretch.  Computers think in Base 16, with numeric values ranging from zero to fifteen, or 0 – F.  Each decimal place has a possible 16 values as opposed to a possible 10 values in base 10.  Therefore, the number 10 in Hex is equal to the number 16 in Decimal.  DECIMAL:  The Decimal conversion is strictly for us humans to use for calculations and conversions.  It is much easier for us humans to calculate that [30 – 10 = 20] in decimal than it is for us to calculate [1E – A = 14] in Hex.  In the old days, an error in a program could be found by determining the displacement from the entry point of a module.  Since those values were dumped from the computers head, they were in hex. A programmer needed to convert them to decimal, do the equation and convert back to hex.  This gets into relative and absolute addressing, a topic for another day.  BINARY:  Binary, or machine code, is where any value can be expressed in 1s and 0s.  It is really Base 2, because each decimal place can have a possibility of only 2 characters, a 1 or a 0.  In Binary, the number 10 is equal to the number 2 in decimal. Why only 1s and 0s?  Very simply, computers are made up of lots and lots of transistors which at any given moment can be ON ( 1 ) or OFF ( 0 ).  Each transistor is a bit, and the order that the transistors fire (or not fire) is what distinguishes one value from  another in the computers head (or CPU).  Consider 32 bit vs 64 bit processing…..a 64 bit processor has the capability to read 64 transistors at a time.  A 32 bit processor can only read half as many at a time, so in theory the 64 bit processor should be much faster.  There are many more factors involved in CPU performance, but that is the fundamental difference.    DECIMAL HEX BINARY 0 0 0000 1 1 0001 2 2 0010 3 3 0011 4 4 0100 5 5 0101 6 6 0110 7 7 0111 8 8 1000 9 9 1001 10 A 1010 11 B 1011 12 C 1100 13 D 1101 14 E 1110 15 F 1111   Remember that each character is a BYTE, there are 2 HEX characters in a byte (called nibbles) and 8 BITS in a byte.  I hope you enjoyed reading about the theory of data processing.  This is just a high-level explanation, and there is much more to be learned.  It is safe to say that, no matter how advanced our programming languages and visual studios become, they are nothing more than a way to interpret bits and bytes.  There is nothing like the joy of hex to get the mind racing.

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• Extended FindWindow

  - by João Angelo

  The Win32 API provides the FindWindow function that supports finding top-level windows by their class name and/or title. However, the title search does not work if you are trying to match partial text at the middle or the end of the full window title. You can however implement support for these extended search features by using another set of Win32 API like EnumWindows and GetWindowText. A possible implementation follows: using System; using System.Collections.Generic; using System.Linq; using System.Runtime.InteropServices; using System.Text; public class WindowInfo { private IntPtr handle; private string className; internal WindowInfo(IntPtr handle, string title) { if (handle == IntPtr.Zero) throw new ArgumentException("Invalid handle.", "handle"); this.Handle = handle; this.Title = title ?? string.Empty; } public string Title { get; private set; } public string ClassName { get { if (className == null) { className = GetWindowClassNameByHandle(this.Handle); } return className; } } public IntPtr Handle { get { if (!NativeMethods.IsWindow(this.handle)) throw new InvalidOperationException("The handle is no longer valid."); return this.handle; } private set { this.handle = value; } } public static WindowInfo[] EnumerateWindows() { var windows = new List<WindowInfo>(); NativeMethods.EnumWindowsProcessor processor = (hwnd, lParam) => { windows.Add(new WindowInfo(hwnd, GetWindowTextByHandle(hwnd))); return true; }; bool succeeded = NativeMethods.EnumWindows(processor, IntPtr.Zero); if (!succeeded) return new WindowInfo[] { }; return windows.ToArray(); } public static WindowInfo FindWindow(Predicate<WindowInfo> predicate) { WindowInfo target = null; NativeMethods.EnumWindowsProcessor processor = (hwnd, lParam) => { var current = new WindowInfo(hwnd, GetWindowTextByHandle(hwnd)); if (predicate(current)) { target = current; return false; } return true; }; NativeMethods.EnumWindows(processor, IntPtr.Zero); return target; } private static string GetWindowTextByHandle(IntPtr handle) { if (handle == IntPtr.Zero) throw new ArgumentException("Invalid handle.", "handle"); int length = NativeMethods.GetWindowTextLength(handle); if (length == 0) return string.Empty; var buffer = new StringBuilder(length + 1); NativeMethods.GetWindowText(handle, buffer, buffer.Capacity); return buffer.ToString(); } private static string GetWindowClassNameByHandle(IntPtr handle) { if (handle == IntPtr.Zero) throw new ArgumentException("Invalid handle.", "handle"); const int WindowClassNameMaxLength = 256; var buffer = new StringBuilder(WindowClassNameMaxLength); NativeMethods.GetClassName(handle, buffer, buffer.Capacity); return buffer.ToString(); } } internal class NativeMethods { public delegate bool EnumWindowsProcessor(IntPtr hwnd, IntPtr lParam); [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] public static extern bool EnumWindows( EnumWindowsProcessor lpEnumFunc, IntPtr lParam); [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern int GetWindowText( IntPtr hWnd, StringBuilder lpString, int nMaxCount); [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern int GetWindowTextLength(IntPtr hWnd); [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern int GetClassName( IntPtr hWnd, StringBuilder lpClassName, int nMaxCount); [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] public static extern bool IsWindow(IntPtr hWnd); } The access to the windows handle is preceded by a sanity check to assert if it’s still valid, but if you are dealing with windows out of your control then the window can be destroyed right after the check so it’s not guaranteed that you’ll get a valid handle. Finally, to wrap this up a usage, example: static void Main(string[] args) { var w = WindowInfo.FindWindow(wi => wi.Title.Contains("Test.docx")); if (w != null) { Console.Write(w.Title); } }

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• Atheros 922 PCI WIFI is disabled in Unity but enabled in terminal - How to get it to work?

  - by zewone

  I am trying to get my PCI Wireless Atheros 922 card to work. It is disabled in Unity: both the network utility and the desktop (see screenshot http://www.amisdurailhalanzy.be/Screenshot%20from%202012-10-25%2013:19:54.png) I tried many different advises on many different forums. Installed 12.10 instead of 12.04, enabled all interfaces... etc. I have read about the aht9 driver... The terminal shows no hw or sw lock for the Atheros card, nevertheless, it is still disabled. Nothing worked so far, the card is still disabled. Any help is much appreciated. Here are more tech details: myuser@adri1:~$ sudo lshw -C network *-network:0 DISABLED description: Wireless interface product: AR922X Wireless Network Adapter vendor: Atheros Communications Inc. physical id: 2 bus info: pci@0000:03:02.0 logical name: wlan1 version: 01 serial: 00:18:e7:cd:68:b1 width: 32 bits clock: 66MHz capabilities: pm bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.5.0-17-generic firmware=N/A latency=168 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:18 memory:d8000000-d800ffff *-network:1 description: Ethernet interface product: VT6105/VT6106S [Rhine-III] vendor: VIA Technologies, Inc. physical id: 6 bus info: pci@0000:03:06.0 logical name: eth0 version: 8b serial: 00:11:09:a3:76:4a size: 10Mbit/s capacity: 100Mbit/s width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=via-rhine driverversion=1.5.0 duplex=half latency=32 link=no maxlatency=8 mingnt=3 multicast=yes port=MII speed=10Mbit/s resources: irq:18 ioport:d300(size=256) memory:d8013000-d80130ff *-network DISABLED description: Wireless interface physical id: 1 bus info: usb@1:8.1 logical name: wlan0 serial: 00:11:09:51:75:36 capabilities: ethernet physical wireless configuration: broadcast=yes driver=rt2500usb driverversion=3.5.0-17-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11bg myuser@adri1:~$ sudo rfkill list all 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy1: Wireless LAN Soft blocked: no Hard blocked: yes 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no myuser@adri1:~$ dmesg | grep wlan0 [ 15.114235] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready myuser@adri1:~$ dmesg | egrep 'ath|firm' [ 14.617562] ath: EEPROM regdomain: 0x30 [ 14.617568] ath: EEPROM indicates we should expect a direct regpair map [ 14.617572] ath: Country alpha2 being used: AM [ 14.617575] ath: Regpair used: 0x30 [ 14.637778] ieee80211 phy0: >Selected rate control algorithm 'ath9k_rate_control' [ 14.639410] Registered led device: ath9k-phy0 myuser@adri1:~$ dmesg | grep wlan1 [ 15.119922] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready myuser@adri1:~$ lspci -nn | grep 'Atheros' 03:02.0 Network controller [0280]: Atheros Communications Inc. AR922X Wireless Network Adapter [168c:0029] (rev 01) myuser@adri1:~$ sudo ifconfig eth0 Link encap:Ethernet HWaddr 00:11:09:a3:76:4a inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::211:9ff:fea3:764a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5457 errors:0 dropped:0 overruns:0 frame:0 TX packets:2548 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3425684 (3.4 MB) TX bytes:282192 (282.1 KB) 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:590 errors:0 dropped:0 overruns:0 frame:0 TX packets:590 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:53729 (53.7 KB) TX bytes:53729 (53.7 KB) myuser@adri1:~$ sudo iwconfig wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on lo no wireless extensions. eth0 no wireless extensions. wlan1 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off myuser@adri1:~$ lsmod | grep "ath9k" ath9k 116549 0 mac80211 461161 3 rt2x00usb,rt2x00lib,ath9k ath9k_common 13783 1 ath9k ath9k_hw 376155 2 ath9k,ath9k_common ath 19187 3 ath9k,ath9k_common,ath9k_hw cfg80211 175375 4 rt2x00lib,ath9k,mac80211,ath myuser@adri1:~$ iwlist scan wlan0 Failed to read scan data : Network is down lo Interface doesn't support scanning. eth0 Interface doesn't support scanning. wlan1 Failed to read scan data : Network is down myuser@adri1:~$ lsb_release -d Description: Ubuntu 12.10 myuser@adri1:~$ uname -mr 3.5.0-17-generic i686  Any help much appreciated... Thanks, Philippe 31-10-2012 ... I have some more updates. When I do the following command it does see my Wifi router... So even if it is still disabled... the card seems to work and see the router (ESSID:"5791BC26-CE9C-11D1-97BF-0000F81E") See below: sudo iwlist wlan1 scanning wlan1 Scan completed : Cell 01 - Address: 00:19:70:8F:B0:EA Channel:10 Frequency:2.457 GHz (Channel 10) Quality=51/70 Signal level=-59 dBm Encryption key:on ESSID:"5791BC26-CE9C-11D1-97BF-0000F81E" 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=000000025dbf2188 Extra: Last beacon: 108ms ago IE: Unknown: 002035373931424332362D434539432D313144312D393742462D3030303046383145 IE: Unknown: 010882848B960C121824 IE: Unknown: 03010A IE: Unknown: 0706424520010D14 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK IE: Unknown: 2A0100 IE: Unknown: 32043048606C IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD0A00037F04010000000000

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• java.util.zip.ZipException: Error opening file When Deploying an Application to Weblogic Server

  - by lmestre

  The latest weeks we had a hard time trying to solve a deployment issue.* WebLogic Server 10.3.6* Target: WLS Cluster<21-10-2013 05:29:40 PM CLST> <Error> <Console> <BEA-240003> <Console encountered the following error weblogic.management.DeploymentException:        at weblogic.servlet.internal.WarDeploymentFactory.findOrCreateComponentMBeans(WarDeploymentFactory.java:69)        at weblogic.application.internal.MBeanFactoryImpl.findOrCreateComponentMBeans(MBeanFactoryImpl.java:48)        at weblogic.application.internal.MBeanFactoryImpl.createComponentMBeans(MBeanFactoryImpl.java:110)        at weblogic.application.internal.MBeanFactoryImpl.initializeMBeans(MBeanFactoryImpl.java:76)        at weblogic.management.deploy.internal.MBeanConverter.createApplicationMBean(MBeanConverter.java:89)        at weblogic.management.deploy.internal.MBeanConverter.createApplicationForAppDeployment(MBeanConverter.java:67)        at weblogic.management.deploy.internal.MBeanConverter.setupNew81MBean(MBeanConverter.java:315)        at weblogic.deploy.internal.targetserver.operations.ActivateOperation.compatibilityProcessor(ActivateOperation.java:81)        at weblogic.deploy.internal.targetserver.operations.AbstractOperation.setupPrepare(AbstractOperation.java:295)        at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:97)        at weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:217)        at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:747)        at weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1216)        at weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:250)        at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:159)        at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:171)        at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:13)        at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:46)        at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:545)        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)        at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)Caused by: java.util.zip.ZipException: Error opening file - C:\Oracle\Middleware\user_projects\domains\MyDomain\servers\MyServer\stage\myapp\myapp.war Message - error in opening zip file        at weblogic.servlet.utils.WarUtils.existsInWar(WarUtils.java:87)        at weblogic.servlet.utils.WarUtils.isWebServices(WarUtils.java:76)        at weblogic.servlet.internal.WarDeploymentFactory.findOrCreateComponentMBeans(WarDeploymentFactory.java:61) So the first idea you have with that error is that the war file is corrupted or has incorrect privileges.        We tried:1. Unzipping the  war file, the file was perfect.2. Checking the size, same size as in other environments.3. Checking the ownership of the file, same as in other environments.4. Checking the permissions of the file, same as other applications.Then we accepted the file was fine, so we tried enabling some deployment debugs, but no clues.We also tried:1. Delete all contents of <MyDomain/servers/<MyServer>/tmp> a and <MyDomain/servers/<MyServer>/cache> folders, the issue persisted.2. When renaming the application the deployment was sucessful3. When targeting to the Admin Server, deployment was also working.4. Using 'Copy this application onto every target for me' didn't help either.Finally, my friend 'Test Case' solved the issue again.I saw this name in the config.xml<jdbc-system-resource>    <name>myapp</name>    <target></target>    <descriptor-file-name>jdbc/myapp-jdbc.xml</descriptor-file-name>  </jdbc-system-resource> So, it turned out that customer had created a DataSource with the same name as the application 'myapp' in the above example.By deleting the datasource and created another exact DataSource with a different name the issue was solved.At this point, Do you know Why 'java.util.zip.ZipException: Error opening file' was occurring?Because all names is WebLogic Server need to be unique.References: http://docs.oracle.com/cd/E23943_01/web.1111/e13709/setup.htm"Assigning Names to WebLogic Server ResourcesMake sure that each configurable resource in your WebLogic Server environment has a unique name. Each, domain, server, machine, cluster, JDBC data source, virtual host, or other resource must have a unique name." Enjoy!

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• Atheros AR2413 wireless not working after shutdown

  - by Chandrasekhar

  I am using a Ubuntu 11.04 on an Acer aspire 3680 laptop and my wifi is not working. I followed the below commands to install the madwifi driver: sudo su apt-get install subversion cd /usr/src svn checkout http://madwifi-project.org/svn/madwifi/trunk madwifi tar cfvz madwifi.tgz cd madwifi make && make install echo "blacklist ath5k" /etc/modprobe.d/blacklist.conf echo "ath_pci" /etc/modules modprobe ath_pci sudo reboot After installation I am facing the same problem. My wifi wont work after I shutdown. Infact it didn't work after suspend but I rectified that problem by the following commands: Command 1: sudo rmmod -f ath_pci sudo rfkill unblock all sudo modprobe ath_pci along with the command SUSPEND_MODULES=ath_pci added to the /etc/pm/config.d/madwifi directory. So if I suspend and then on my laptop the wifi loads well and doesn't create a problem. But if I shutdown my laptop the wifi never loads again and eachtime I have to run a Ubuntu 9.04 live CD to load it. I did try adding the Command 1 to the /etc/rc.local directory but still it doesn't work. So my question is: What should I do in order to make my wireless work without having to run a live CD of ubuntu 9.04 everytime after shutdown? Thanks. Here are the outputs which one might need: Output 1 chandru@chandru-acer:~$ lspci 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02) 00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 02) 00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02) 00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02) 00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02) 02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8038 PCI-E Fast Ethernet Controller (rev 14) 0a:03.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01) 0a:09.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller 0a:09.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD) Output 2: lsmod Module Size Used by wlan_tkip 17074 2 binfmt_misc 13213 1 parport_pc 32111 0 ppdev 12849 0 snd_hda_codec_si3054 12924 1 snd_hda_codec_realtek 255882 1 joydev 17322 0 snd_atiixp_modem 18624 0 snd_via82xx_modem 18305 0 snd_intel8x0m 18493 0 snd_ac97_codec 105614 3 snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m snd_hda_intel 24113 2 ac97_bus 12642 1 snd_ac97_codec snd_hda_codec 90901 3 snd_hda_codec_si3054,snd_hda_codec_realtek,snd_hda_intel i915 451053 3 snd_hwdep 13274 1 snd_hda_codec snd_pcm 80042 7 snd_hda_codec_si3054,snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_ac97_codec,snd_hda_intel,snd_hda_codec snd_seq_midi 13132 0 snd_rawmidi 25269 1 snd_seq_midi drm_kms_helper 40971 1 i915 snd_seq_midi_event 14475 1 snd_seq_midi snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event pcmcia 39671 0 snd_timer 28659 2 snd_pcm,snd_seq snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq drm 184164 4 i915,drm_kms_helper yenta_socket 27230 0 tifm_7xx1 12898 0 wlan_scan_sta 21945 1 ath_rate_sample 17279 1 pcmcia_rsrc 18292 1 yenta_socket psmouse 73312 0 tifm_core 15040 1 tifm_7xx1 snd 55295 18 snd_hda_codec_si3054,snd_hda_codec_realtek,snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_ac97_codec,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device serio_raw 12990 0 i2c_algo_bit 13184 1 i915 soundcore 12600 1 snd pcmcia_core 21505 3 pcmcia,yenta_socket,pcmcia_rsrc video 19112 1 i915 ath_pci 183044 0 snd_page_alloc 14073 5 snd_atiixp_modem,snd_via82xx_modem,snd_intel8x0m,snd_hda_intel,snd_pcm wlan 224640 5 wlan_tkip,wlan_scan_sta,ath_rate_sample,ath_pci ath_hal 398701 3 ath_rate_sample,ath_pci lp 13349 0 parport 36746 3 parport_pc,ppdev,lp usbhid 41704 0 hid 77084 1 usbhid sky2 49172 0 Output 3 root@chandru-acer:~# lshw -C network PCI (sysfs) *-network description: Ethernet interface product: 88E8038 PCI-E Fast Ethernet Controller vendor: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: 14 serial: 00:16:36:fb:aa:64 capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.28 firmware=N/A latency=0 link=no multicast=yes port=twisted pair resources: irq:43 memory:44000000-44003fff ioport:2000(size=256) *-network description: Wireless interface product: AR2413 802.11bg NIC vendor: Atheros Communications Inc. physical id: 3 bus info: pci@0000:0a:03.0 logical name: wifi0 version: 01 serial: 00:19:7d:d3:0c:fd width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list logical ethernet physical wireless configuration: broadcast=yes driver=ath_pci ip=192.168.1.6 latency=96 maxlatency=28 mingnt=10 multicast=yes wireless=IEEE 802.11g resources: irq:18 memory:d0000000-d000ffff Output 4 root@chandru-acer:~# lsmod | grep ath_pci ath_pci 183044 0 wlan 224640 5 wlan_tkip,wlan_scan_sta,ath_rate_sample,ath_pci ath_hal 398701 3 ath_rate_sample,ath_pci

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• Exploring TCP throughput with DTrace (2)

  - by user12820842

  Last time, I described how we can use the overlap in distributions of unacknowledged byte counts and send window to determine whether the peer's receive window may be too small, limiting throughput. Let's combine that comparison with a comparison of congestion window and slow start threshold, all on a per-port/per-client basis. This will help us Identify whether the congestion window or the receive window are limiting factors on throughput by comparing the distributions of congestion window and send window values to the distribution of outstanding (unacked) bytes. This will allow us to get a visual sense for how often we are thwarted in our attempts to fill the pipe due to congestion control versus the peer not being able to receive any more data. Identify whether slow start or congestion avoidance predominate by comparing the overlap in the congestion window and slow start distributions. If the slow start threshold distribution overlaps with the congestion window, we know that we have switched between slow start and congestion avoidance, possibly multiple times. Identify whether the peer's receive window is too small by comparing the distribution of outstanding unacked bytes with the send window distribution (i.e. the peer's receive window). I discussed this here. # dtrace -s tcp_window.d dtrace: script 'tcp_window.d' matched 10 probes ^C cwnd 80 10.175.96.92 value ------------- Distribution ------------- count 1024 | 0 2048 | 4 4096 | 6 8192 | 18 16384 | 36 32768 |@ 79 65536 |@ 155 131072 |@ 199 262144 |@@@ 400 524288 |@@@@@@ 798 1048576 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 3848 2097152 | 0 ssthresh 80 10.175.96.92 value ------------- Distribution ------------- count 268435456 | 0 536870912 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 5543 1073741824 | 0 unacked 80 10.175.96.92 value ------------- Distribution ------------- count -1 | 0 0 | 1 1 | 0 2 | 0 4 | 0 8 | 0 16 | 0 32 | 0 64 | 0 128 | 0 256 | 3 512 | 0 1024 | 0 2048 | 4 4096 | 9 8192 | 21 16384 | 36 32768 |@ 78 65536 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 5391 131072 | 0 swnd 80 10.175.96.92 value ------------- Distribution ------------- count 32768 | 0 65536 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 5543 131072 | 0 Here we are observing a large file transfer via http on the webserver. Comparing these distributions, we can observe: That slow start congestion control is in operation. The distribution of congestion window values lies below the range of slow start threshold values (which are in the 536870912+ range), so the connection is in slow start mode. Both the unacked byte count and the send window values peak in the 65536-131071 range, but the send window value distribution is narrower. This tells us that the peer TCP's receive window is not closing. The congestion window distribution peaks in the 1048576 - 2097152 range while the receive window distribution is confined to the 65536-131071 range. Since the cwnd distribution ranges as low as 2048-4095, we can see that for some of the time we have been observing the connection, congestion control has been a limiting factor on transfer, but for the majority of the time the receive window of the peer would more likely have been the limiting factor. However, we know the window has never closed as the distribution of swnd values stays within the 65536-131071 range. So all in all we have a connection that has been mildly constrained by congestion control, but for the bulk of the time we have been observing it neither congestion or peer receive window have limited throughput. Here's the script: #!/usr/sbin/dtrace -s tcp:::send / (args[4]-tcp_flags & (TH_SYN|TH_RST|TH_FIN)) == 0 / { @cwnd["cwnd", args[4]-tcp_sport, args[2]-ip_daddr] = quantize(args[3]-tcps_cwnd); @ssthresh["ssthresh", args[4]-tcp_sport, args[2]-ip_daddr] = quantize(args[3]-tcps_cwnd_ssthresh); @unacked["unacked", args[4]-tcp_sport, args[2]-ip_daddr] = quantize(args[3]-tcps_snxt - args[3]-tcps_suna); @swnd["swnd", args[4]-tcp_sport, args[2]-ip_daddr] = quantize((args[4]-tcp_window)*(1 tcps_snd_ws)); } One surprise here is that slow start is still in operation - one would assume that for a large file transfer, acknowledgements would push the congestion window up past the slow start threshold over time. The slow start threshold is in fact still close to it's initial (very high) value, so that would suggest we have not experienced any congestion (the slow start threshold is adjusted when congestion occurs). Also, the above measurements were taken early in the connection lifetime, so the congestion window did not get a changes to get bumped up to the level of the slow start threshold. A good strategy when examining these sorts of measurements for a given service (such as a webserver) would be start by examining the distributions above aggregated by port number only to get an overall feel for service performance, i.e. is congestion control or peer receive window size an issue, or are we unconstrained to fill the pipe? From there, the overlap of distributions will tell us whether to drill down into specific clients. For example if the send window distribution has multiple peaks, we may want to examine if particular clients show issues with their receive window.

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• nginx unknown directive ssl_protocols

  - by ghostrifle

  I've compiled NGINX 1.4.1 with ssl support and wanted to secure my configuation with these lines: ssl_prefer_server_ciphers on; ssl_protocols        SSLv3 TLSv1 TLSv1.1 TLSv1.2; ssl_ciphers          AES128-GCM-SHA256:AES256-GCM-SHA384:RC4-SHA:AES128-SHA256:AES256-SHA256; ssl_session_cache       shared:TLSSL:16m; ssl_session_timeout     10m; This is the error I'm getting which I don't understand why it comes up: nginx: [emerg] unknown directive "ssl_protocols        SSLv3" my nginx configuration: nginx version: nginx/1.4.1 built by gcc 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) TLS SNI support enabled configure arguments: --with-http_dav_module --with-http_gzip_static_module --with- http_stub_status_module --prefix=/opt/nginx --with-http_perl_module --with-http_ssl_module --with-perl=/usr/bin/perl --with-http_geoip_module --with-http_realip_module maybe anyone knows what I'm doing wrong?

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• Snow Leopard and SonicWall NetExtender VPN?

  - by Hank Gay

  I recently upgraded from Leopard to Snow Leopard, and now I'm having strange issues with a previously working NetExtender. After debugging a "can't read/execute /etc/ppp/peers" problem (since /etc/ppp didn't exist) and following the advice on the Apple support forums (I tried a clean install, and sudo chmod u+s /usr/sbin/pppd had no effect), I'm getting this error: Connected. Logging in... Login successful. Using SSL Encryption Cipher 'DHE-RSA-AES256-SHA' Using new PPP frame encoding mechanism SSL-VPN logging out... FATAL: An error was detected in processing the options given, such as two mutually exclusive options being used. (2) SSL-VPN connection is terminated. Thanks for any help.

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• SPF Failure sending sms message to sms.mycricket.com

  - by CodeGurl

  I built an asp.net application that sends text messages to our employees using carrier-provided email to SMS gateways. The people on Cricket (sms.mycricket.com) are the only ones that are bouncing with a return message like this: Unknown address error SPF FAILURE/Sender has no SPF records: SEE RFC 4408 - FROM check failed: Received: from unknown (HELO servername.domainname.com) ([ipaddress]) by .... with ESMTP/TLS/DHE-RSA-AES256-SHA; 14 Nov 2012 06:22:56 -0600 From my research it looks like we may need to setup something in DNS for the Sender Policy Framework. I'm not in the networking group so I don't know much about this. How can this be done? http://en.wikipedia.org/wiki/Sender_Policy_Framework

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• Current alternative to the old CHECKSUM program

  - by faulty

  I'm looking for an application that does md5/sha hash check on specific files/folders periodically and store an index file per folder for future verification. I remember such application exist in DOS days, to detect files infected by virus. The main purpose for this is to detect corrupted copy of backup, as I understand that consumer grade hardware are not 100% error free when doing backup or file transfer from device to device. The hash can also be used to generate a list of changed files for backup. Most of the software I can find is hash manually. EDIT: Windows based application, preferably a shell extension which I can right click on a folder and do a checksum/verify all files in that folder. Even better if that can integrate with a backup/sync program like BeyondCopy

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• How to generate the right password format for Apache2 authentication in use with DBD and MySQL 5.1?

  - by Walkman

  I want to authenticate users for a folder from a MySQL 5.1 database with AuthType Basic. The passwords are stored in plain text (they are not really passwords, so doesn't matter). The password format for apache however only allows for SHA1, MD5 on Linux systems as described here. How could I generate the right format with an SQL query ? Seems like apache format is a binary format with a lenght of 20, but the mysql SHA1 function return 40 long. My SQL query is something like this: SELECT CONCAT('{SHA}', BASE64_ENCODE(SHA1(access_key))) FROM user_access_keys INNER JOIN users ON user_access_keys.user_id = users.id WHERE name = %s where base64_encode is a stored function (Mysql 5.1 doesn't have TO_BASE64 yet). This query returns a 61 byte BLOB which is not the same format that apache uses. How could I generate the same format ? You can suggest other method for this too. The point is that I want to authenticate users from a MySQL5.1 database using plain text as password.

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• ssl_error_log apache issue

  - by lakshmipathi

  https://localhost works but https://ipaddress didn't cat logs/ssl_error_log [Mon Aug 02 19:04:11 2010] [error] [client 192.168.1.158] (13)Permission denied: access to /ajaxterm denied [root@space httpd]# cat logs/ssl_access_log 192.168.1.158 - - [02/Aug/2010:19:04:11 +0530] "GET /ajaxterm HTTP/1.1" 403 290 [root@space httpd]# cat logs/ssl_request_log [02/Aug/2010:19:04:11 +0530] 192.168.1.158 SSLv3 DHE-RSA-CAMELLIA256-SHA "GET /ajaxterm HTTP/1.1" 290 httpd.conf file NameVirtualHost *:443 <VirtualHost *:443> ServerName localhost SSLEngine on SSLCertificateFile /etc/pki/tls/certs/ca.crt SSLCertificateKeyFile /etc/pki/tls/private/ca.key <Directory /usr/share/ajaxterm > Options FollowSymLinks AllowOverride None Order deny,allow Allow from All </Directory> DocumentRoot /usr/share/ajaxterm DirectoryIndex ajaxterm.html ProxyRequests Off <Proxy *> # Order deny,allow Allow from all </Proxy> ProxyPass /ajaxterm/ http://localhost:8022/ ProxyPassReverse /ajaxterm/ http://localhost:8022/ ErrorLog error_log.log TransferLog access_log.log </VirtualHost> How to fix this ?

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• SPF record doesn't work (not sure which DNS server to tweak)

  - by Ion

  Problem: Google (and perhaps others) marks our emails as SPF neutral. Let me give you some background about the setup: initially got a dedicated server (Hetzner) with Plesk installed to host a domain/web application, let's say: bigjaws.com. Plesk automatically creates a DNS zone for it with some records for the various services it provides out of the box, e.g. webmail.bigjaws.com as a CNAME to bigjaws.com to provide Horde/whatever, etc. Let me point out four relevant of these records (where XXX.XXX.XXX.158 is our dedicated IP): bigjaws.com. A XXX.XXX.XXX.158 mail.bigjaws.com. A XXX.XXX.XXX.158 bigjaws.com MX (10) mail.bigjaws.com. bigjaws.com. TXT v=spf1 +a +mx -all The above records are not(?) valid anymore though, because after using this dedicated server for a while, our site got bigger and bigger so we decided to move our operations over to AWS (EC2, RDS, ELB, etc), but we retained the mail functionality as is, i.e. emails from [email protected] are sent by connecting to our dedicated server where Plesk takes care of things. This was decided in order not to setup anything from scratch. Of course for all DNS-related things we now use Route53. In Route53 I have the following records: mail.schoox.com. A XXX.XXX.XXX.158 bigjaws.com. MX (10) mail.bigjaws.com bigjaws.com. SPF "v=spf1 +ip4:XXX.XXX.XXX.158 +mx ~all" From my understanding of SPF, the SPF status should have been passed: I designate that all email being sent by bigjaws.com from XXX.XXX.XXX.158 are valid/not spam (I added +mx there but I'm not sure if needed). When a mail server receives an email, doesn't it lookup the SPF record of the domain and checks against the IP it got the email from? Checking with spfquery: root@box:~# spfquery -ip XXX.XXX.XXX.158 -sender [email protected] -rcpt-to [email protected] StartError Context: Failed to query MAIL-FROM ErrorCode: (2) Could not find a valid SPF record Error: No DNS data for 'bigjaws.com'. EndError noneneutral Please see http://www.openspf.org/Why?id=employee1%40bigjaws.com&ip=XXX.XXX.XXX.158&receiver=spfquery : Reason: default spfquery: XXX.XXX.XXX.158 is neither permitted nor denied by domain of bigjaws.com Received-SPF: neutral (spfquery: XXX.XXX.XXX.158 is neither permitted nor denied by domain of bigjaws.com) client-ip=XXX.XXX.XXX.158; [email protected]; If I go to the address listed above (openspf.org) it tells me that the message should have been accepted(!): spfquery rejected a message that claimed an envelope sender address of [email protected]. spfquery received a message from static.158.XXX.XXX.XXX.clients.your-server.de (XXX.XXX.XXX.158) that claimed an envelope sender address of [email protected]. The domain bigjaws.com has authorized static.158.XXX.XXX.XXX.clients.your-server.de (XXX.XXX.XXX.158) to send mail on its behalf, so the message should have been accepted. It is impossible for us to say why it was rejected. What should I do? If the problem persists, contact the bigjaws.com postmaster. Also, here are some headers from an email sent by one of our [email protected] addresses to a gmail.com address (by the way, bigjaws.de listed in the "Received: from" field was the initial domain hosted on the dedicated server before adding the .com one -- both are still listed as separate subscriptions under Plesk). Delivered-To: [email protected] Received: by 10.14.177.70 with SMTP id c46csp289656eem; Wed, 23 Oct 2013 01:11:00 -0700 (PDT) X-Received: by 10.14.102.66 with SMTP id c42mr306186eeg.47.1382515860386; Wed, 23 Oct 2013 01:11:00 -0700 (PDT) Return-Path: <[email protected]> Received: from bigjaws.de (static.158.XXX.XXX.XXX.clients.your-server.de. [XXX.XXX.XXX.158]) by mx.google.com with ESMTPS id l4si19438578eew.161.2013.10.23.01.10.59 for <[email protected]> (version=TLSv1 cipher=RC4-SHA bits=128/128); Wed, 23 Oct 2013 01:10:59 -0700 (PDT) Received-SPF: neutral (google.com: XXX.XXX.XXX.158 is neither permitted nor denied by best guess record for domain of [email protected]) client-ip=XXX.XXX.XXX.158; Authentication-Results: mx.google.com; spf=neutral (google.com: XXX.XXX.XXX.158 is neither permitted nor denied by best guess record for domain of [email protected]) [email protected] DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=bigjaws.com; b=WwRAS0WKjp9lO17iMluYPXOHzqRcOueiQT4rPdvy3WFf0QzoXiy6rLfxU/Ra53jL1vlPbwlLNa5gjoJBi7ZwKfUcvs3s02hJI7b3ozl0fEgJtTPKoCfnwl4bLPbtXNFu; h=Received:Received:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:Content-Type:Content-Transfer-Encoding; Received: (qmail 22722 invoked from network); 23 Oct 2013 10:10:59 +0200 Received: from hostname.static.ISP.com (HELO ?192.168.1.60?) (YYY.YYY.ISP.IP) by static.158.XXX.XXX.XXX.clients.your-server.de. with ESMTPSA (DHE-RSA-AES256-SHA encrypted, authenticated); 23 Oct 2013 10:10:59 +0200 Message-ID: <[email protected]> Date: Wed, 23 Oct 2013 11:11:00 +0300 From: BigJaws Employee <[email protected]> User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 MIME-Version: 1.0 To: [email protected] Subject: test SPF Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit test SPF Any ideas why SPF is not working correctly? Also, are there any DNS settings that are not needed anymore and create a problem?

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• What hash should be used to ensure file integrity?

  - by Corey Ogburn

  It's no secret that large files offered up for download often are coupled with their MD5 or SHA-1 hash so that after you download you can verify the file's integrity. Are these still the best algorithms to use for this? Obviously these are very popular hashes that potential downloaders would have easy access to. Ignoring that factor, what hashes have the best properties for being used for this? For example, bcrypt would be horrible for this. It's designed to be slow. That would suck to use on your 7.4 GB dual layer OS ISO you just downloaded when a 12 letter password might take up to a second with the right parameters.

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• including files in a symlink directory when backing up with duplicity

  - by Rob

  I'm backing up using Duplicity, great tool. I'm unable to include files in the backup that are within a directory that is a symlink. Using the following: duplicity <dup args> --include /var/www/**/current --exclude '**' duplicity will only backup the symlink I've tried: duplicity <dup args> --include /var/www/**/current/* --exclude '**' # and duplicity <dup args> --include /var/www/**/current/** --exclude '**' Not even then symlink is backed up. the "current" directory links to directory like: /var/www/host.com/de9f2c7fd25e1b3afad3e85a0bd17d9b100db4b3 The files contains a few static html & css files. I want those files to be backed up, regardless of which sha'd directory "current" points to. Any help appreciated.

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• Transparently decompressing data in archive to allow greater compression later

  - by Vi.

  I have, for example, filesystem image which have some compressed files (with weak compression such as gzip), for example, manpages or archives with the same uncompressed content nearby. How to pre-filter the data to "expand" compressed data to plain form (to re-compress it with strong compression) and then post-filter after decompression to restore original "semi-compressed" image? SHA-1 match is advices but not strictly required (but the resulting image must work, e.g. re-compressed files should not grow too much, be decompressible etc.) Like improving compression ratio by reversing weak compression algorithms. Are there programs for this?

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• Git: get back my commited data from a messed up local repo

  - by Karussell

  I am a newbie to git so I think I made something stupid (will move back to hg soon ;-)) Assume I'm at version A and I commited a change but didn't want that. Now assume we have version B. I didn't found a good solution how to cleanly roll B back to A but went back to A via checkout and continued commiting - assume I have version C. A--->B \-->C Now the problem is that those commits were successfull (I can see the SHA's and the msg in .git/logs/HEAD) but the commits do not show up in the log and I couldn't push them to github. Before detecting the mess I checkout to 'master' ... and git rolled all back to B. How can I get my version C back or are my changes lost? Is this the same problem as described here? Please close. I posted it here. On stackoverflow seems to be more questions related to that ...

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• Couldn't find package - But package is listed in the Packages file

  - by Chris

  (Quoted items are redacted elements) I am using a private repository and an currently trying to repackage some packages 3rd-party packages. I extract the package, make a few modifications (just the control files to fit with company policy - though sometimes file install locations though not in this case) and repackage (and usually rename). Normally I copy the files into a new blank debhelper project and reconstruct the package, however, with a recent one I attempting to convert and some libraries and stuff aren't linking properly (I did copy the postinst, postrm, and preinst files along with all DEDIAN files exactly), the original package worked, but my repackage doesn't, despite providing the same files in the same locations and the same postinst and preinst. So I was attempting to just modify the current packages control files (as the original package is not very good and will not list in our repository and getting a better one from the 3rd party is not an option). I also renamed the package. I did the following: dpkg-deb -R "directory" Modify DEBIAN/control dpkg-deb -b "directory" "package name I want" I did this and put it in our repository. The package shows up in the "Packages" file on the repository and running apt-get update on the client side shows the package in: /var/lib/apt/lists/"server"_"location"_Packages However when I do an apt-get install on the package name (as listed in the Packages file - I did a copy paste) it says it can't find the package. Same with an apt-cache search The Packages listings is as follow (name redacted): Package: "package name" Priority: extra Section: unknown Maintainer: "maintainer" Architecture: any Version: 1.0-lucid5 Depends: libc Filename: "directory"/"package_filename" Size: 2206292 MD5sum: "md5sum" SHA1: "sha key" SHA256: "sha256 key" Description: "description" I am running as sudo (and tried as root as well). I don't understand why apt-get won't see the package. Can you point out any flaws in what I have done, or perhaps some help on getting apt-get to properly see the package. Or perhaps an alternative. I am not even sure if this is a valid way to repackage something. Thanks.

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• How can I get `find` to ignore .svn directories?

  - by John Kugelman

  I often use the find command to search through source code, delete files, whatever. Annoyingly, because Subversion stores duplicates of each file in its .svn/text-base/ directories my simple searches end up getting lots of duplicate results. For example, I want to recursively search for uint in multiple messages.h and messages.cpp files: # find -name 'messages.*' -exec grep -Iw uint {} + ./messages.cpp: Log::verbose << "Discarding out of date message: id " << uint(olderMessage.id) ./messages.cpp: Log::verbose << "Added to send queue: " << *message << ": id " << uint(preparedMessage->id) ./messages.cpp: Log::error << "Received message with invalid SHA-1 hash: id " << uint(incomingMessage.id) ./messages.cpp: Log::verbose << "Received " << *message << ": id " << uint(incomingMessage.id) ./messages.cpp: Log::verbose << "Sent message: id " << uint(preparedMessage->id) ./messages.cpp: Log::verbose << "Discarding unsent message: id " << uint(preparedMessage->id) ./messages.cpp: for (uint i = 0; i < 10 && !_stopThreads; ++i) { ./.svn/text-base/messages.cpp.svn-base: Log::verbose << "Discarding out of date message: id " << uint(olderMessage.id) ./.svn/text-base/messages.cpp.svn-base: Log::verbose << "Added to send queue: " << *message << ": id " << uint(preparedMessage->id) ./.svn/text-base/messages.cpp.svn-base: Log::error << "Received message with invalid SHA-1 hash: id " << uint(incomingMessage.id) ./.svn/text-base/messages.cpp.svn-base: Log::verbose << "Received " << *message << ": id " << uint(incomingMessage.id) ./.svn/text-base/messages.cpp.svn-base: Log::verbose << "Sent message: id " << uint(preparedMessage->id) ./.svn/text-base/messages.cpp.svn-base: Log::verbose << "Discarding unsent message: id " << uint(preparedMessage->id) ./.svn/text-base/messages.cpp.svn-base: for (uint i = 0; i < 10 && !_stopThreads; ++i) { ./virus/messages.cpp:void VsMessageProcessor::_progress(const string &fileName, uint scanCount) ./virus/messages.cpp:ProgressMessage::ProgressMessage(const string &fileName, uint scanCount) ./virus/messages.h: void _progress(const std::string &fileName, uint scanCount); ./virus/messages.h: ProgressMessage(const std::string &fileName, uint scanCount); ./virus/messages.h: uint _scanCount; ./virus/.svn/text-base/messages.cpp.svn-base:void VsMessageProcessor::_progress(const string &fileName, uint scanCount) ./virus/.svn/text-base/messages.cpp.svn-base:ProgressMessage::ProgressMessage(const string &fileName, uint scanCount) ./virus/.svn/text-base/messages.h.svn-base: void _progress(const std::string &fileName, uint scanCount); ./virus/.svn/text-base/messages.h.svn-base: ProgressMessage(const std::string &fileName, uint scanCount); ./virus/.svn/text-base/messages.h.svn-base: uint _scanCount; How can I tell find to ignore the .svn directories?

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• Spring Security - Interactive login attempt was unsuccessful

  - by Taylor L

  I've been trying to track down why Spring Security isn't creating the SPRING_SECURITY_REMEMBER_ME_COOKIE so I turned on logging for org.springframework.security.web.authentication.rememberme. At first glance, the logs make it seem like the login is failing but the login is actually successful in the sense that if I navigate to a page that requires authentication I am not redirected back to the login page. However, the logs appear to be saying the login credentials are invalid. Any ideas as to what is going on? Mar 16, 2010 10:05:56 AM org.springframework.security.web.authentication.rememberme.PersistentTokenBasedRememberMeServices onLoginSuccess FINE: Creating new persistent login for user [email protected] Mar 16, 2010 10:10:07 AM org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices loginFail FINE: Interactive login attempt was unsuccessful. Mar 16, 2010 10:10:07 AM org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices cancelCookie FINE: Cancelling cookie <http auto-config="false"> <intercept-url pattern="/css/**" filters="none" /> <intercept-url pattern="/img/**" filters="none" /> <intercept-url pattern="/js/**" filters="none" /> <intercept-url pattern="/app/admin/**" filters="none" /> <intercept-url pattern="/app/login/**" filters="none" /> <intercept-url pattern="/app/register/**" filters="none" /> <intercept-url pattern="/app/error/**" filters="none" /> <intercept-url pattern="/" filters="none" /> <intercept-url pattern="/**" access="ROLE_USER" /> <logout logout-success-url="/" /> <form-login login-page="/app/login" default-target-url="/" authentication-failure-url="/app/login?login_error=1" /> <session-management invalid-session-url="/app/login" /> <remember-me services-ref="rememberMeServices" key="myKey" /> </http> <authentication-manager alias="authenticationManager"> <authentication-provider user-service-ref="userDetailsService"> <password-encoder hash="sha-256" base64="true"> <salt-source user-property="username" /> </password-encoder> </authentication-provider> </authentication-manager> <beans:bean id="userDetailsService" class="com.my.service.auth.UserDetailsServiceImpl" /> <beans:bean id="rememberMeServices" class="org.springframework.security.web.authentication.rememberme.PersistentTokenBasedRememberMeServices"> <beans:property name="userDetailsService" ref="userDetailsService" /> <beans:property name="tokenRepository" ref="persistentTokenRepository" /> <beans:property name="key" value="myKey" /> </beans:bean> <beans:bean id="persistentTokenRepository" class="com.my.service.auth.PersistentTokenRepositoryImpl" />

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• Calling a javascript-method causes IE 8 to crash

  - by Andreas Niedermair

  good morning! some basic infos: engine is asp.net (specific version is not relevant) runs on iis (specific version is not relevant) asp-button is hidden why?! wtf?!: this example is used in some modal-confirmation: user clicks delete, ui shows modal-dialog. so, the visible button would be the yes-button, when clicked one, would cause a postback of the original asp-button (as i'm using the jquery-dialog plugin). and i have this html: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> // head tags go here </head> <body> <div style="display: none;"> <asp:Button runat="server" ID="hiddenBt" /> </div> <button id="visibleBt">Yes</button> <script type="text/javascript"> $(document).ready(function() { var visibleButton = $('#visibleBt'); var hiddenButton = $('#<%= this.hiddenBt.ClientID %>'); visibleButton.click(function() { __doPostBack(hiddenButton.attr('name'); }); }); </script> </body> </html> so ... if i'm running IE8 and non-compatiblity view, hitting the yes-button will crash the ie8-rendering-engine Version=1 EventType=MSHTMLLAYOUTHARDASSERT EventTime=129197590067237499 Consent=1 UploadTime=129197590067257499 ReportIdentifier=4b752ddb-6c79-11df-8bf6-001aa0b266a7 WOW64=1 Response.BucketId=1064991109 Response.BucketTable=5 Response.type=4 Sig[0].Name=AppName Sig[0].Value=iexplore.exe Sig[1].Name=AppVer Sig[1].Value=8.00.7600.16385 (win7_rtm.090713-1255) Sig[2].Name=ModName Sig[2].Value=mshtml.dll Sig[3].Name=ModVer Sig[3].Value=8.00.7600.16385 (win7_rtm.090713-1255) Sig[4].Name=Offset Sig[4].Value=0x002B5031 DynamicSig[1].Name=OS Version DynamicSig[1].Value=6.1.7600.2.0.0.256.48 DynamicSig[2].Name=Locale ID DynamicSig[2].Value=3079 State[0].Key=Transport.DoneStage1 State[0].Value=1 FriendlyEventName=Webpage display problem ConsentKey=MSHTMLLAYOUTHARDASSERT AppName=Internet Explorer AppPath=C:\Program Files (x86)\Internet Explorer\iexplore.exe ReportDescription=A problem displaying a webpage caused Internet Explorer to refresh the page using Compatibility View. any help would be appreciated!

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• Spring Security - Persistent Remember Me Issue

  - by Taylor L

  I've been trying to track down why Spring Security isn't creating the Spring Security remember me cookie (SPRING_SECURITY_REMEMBER_ME_COOKIE). At first glance, the logs make it seem like the login is failing, but the login is actually successful in the sense that if I navigate to a page that requires authentication I am not redirected back to the login page. However, the logs appear to be saying the login credentials are invalid. I'm using Spring 3.0.1, Spring Security 3.0.1, and Google App Engine 1.3.1. Any ideas as to what is going on? Mar 16, 2010 10:05:56 AM org.springframework.security.web.authentication.rememberme.PersistentTokenBasedRememberMeServices onLoginSuccess FINE: Creating new persistent login for user [email protected] Mar 16, 2010 10:10:07 AM org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices loginFail FINE: Interactive login attempt was unsuccessful. Mar 16, 2010 10:10:07 AM org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices cancelCookie FINE: Cancelling cookie Below is the relevant portion of the applicationContext-security.xml. <http auto-config="false"> <intercept-url pattern="/css/**" filters="none" /> <intercept-url pattern="/img/**" filters="none" /> <intercept-url pattern="/js/**" filters="none" /> <intercept-url pattern="/app/admin/**" filters="none" /> <intercept-url pattern="/app/login/**" filters="none" /> <intercept-url pattern="/app/register/**" filters="none" /> <intercept-url pattern="/app/error/**" filters="none" /> <intercept-url pattern="/" filters="none" /> <intercept-url pattern="/**" access="ROLE_USER" /> <logout logout-success-url="/" /> <form-login login-page="/app/login" default-target-url="/" authentication-failure-url="/app/login?login_error=1" /> <session-management invalid-session-url="/app/login" /> <remember-me services-ref="rememberMeServices" key="myKey" /> </http> <authentication-manager alias="authenticationManager"> <authentication-provider user-service-ref="userDetailsService"> <password-encoder hash="sha-256" base64="true"> <salt-source user-property="username" /> </password-encoder> </authentication-provider> </authentication-manager> <beans:bean id="userDetailsService" class="com.my.service.auth.UserDetailsServiceImpl" /> <beans:bean id="rememberMeServices" class="org.springframework.security.web.authentication.rememberme.PersistentTokenBasedRememberMeServices"> <beans:property name="userDetailsService" ref="userDetailsService" /> <beans:property name="tokenRepository" ref="persistentTokenRepository" /> <beans:property name="key" value="myKey" /> </beans:bean> <beans:bean id="persistentTokenRepository" class="com.my.service.auth.PersistentTokenRepositoryImpl" />

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• Android: OutofMemoryError: bitmap size exceeds VM budget with no reason I can see.

  - by Meymann

  Hi. I am having an OutOfMemory exception with a gallery over 600x800 pixels JPEG's. The environment I've been using Gallery with JPG images around 600x800 pixels. Since my content may be a bit more complex than just images, I have set each view to be a RelativeLayout that wraps ImageView with the JPG. In order to "speed up" the user experience I have a simple cache of 4 slots that prefetches (in a looper) about 1 image left and 1 image right to the displayed image and keeps them in a 4 slot HashMap. The platform I am using AVD of 256 RAM and 128 Heap Size, with a 600x800 screen. It also happens on an Entourage Edge target, except that with the device it's harder to debug. The problem I have been getting an exception: OutofMemoryError: bitmap size exceeds VM budget And it happens when fetching the fifth image. I have tried to change the size of my image cache, and it is still the same. The strange thing: There should not be a memory problem In order to make sure the heap limit is very far away from what I need, I have defined a dummy 8MB array in the beginning, and left it unreferenced so it's immediately dispatched. It is a member of the activity thread and is defined as following static { @SuppressWarnings("unused") byte dummy[] = new byte[ 8*1024*1024 ]; } The result is that the heap size is nearly 11MB and it's all free. Note I have added that trick after it began to crash. It makes OutOfMemory less frequent. Now, I am using DDMS. Just before the crash (does not change much after the crash), DDMS shows: ID Heap Size Allocated Free %Used #Objects 1 11.195 MB 2.428 MB 8.767 MB 21.69% 47,156 And in the detail table it shows: Type Count Total Size Smallest Largest Median Average free 1,536 8.739MB 16B 7.750MB 24B 5.825KB The largest block is 7.7MB. And yet the LogCat says: ERROR/dalvikvm-heap(1923): 925200-byte external allocation too large for this process. If you mind the relation of the median and the average, it is plausible to assume that most of the available blocks are very small. However, there is a block large enough for the bitmap, it's 7.7M. How come it is still not enough? Note: I recorded a heap trace. When looking at the amount of data allocated, it does not feel like more than 2M is allocated. It does match the free memory report by DDMS. Could it be that I experience some problem like heap-fragmentation? How do I solve/workaround the problem? Is the heap shared to all threads? Could it be that I interpret the DDMS readout in a wrong way, and there is really no 900K block to allocate? If so, can anybody please tell me where I can see that? Thanks a lot Meymann

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