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• Xerox Workcentre 3119 and Linux

  - by Milan Babuškov

  I'm trying to get Xerox Workcentre 3119 printer to work on Linux. It's a multifunction device (printer and scanner). I run the CUPS web interface at: http://localhost:631/ and it recognizes it on USB port and even suggests Gutenprint driver from the list. When I try to print a test page, the printer goes through "warming up" process (i.e. lights blink and sound is heard) but does not print anything. There are no errors in /var/log/cups/error_log and access_log shows as if everything is ok. The printer works fine in Windows XP. Does anyone have any experience with this printer on Linux?

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• 2 routers, both DHCP, no IP assigned

  - by piobyz

  I can't get DHCP to assign IP to my wireless devices. My network config is as follows: Nanostation5 Linksys WRT350N, which is connected with Nanostation via its INTERNET port. Nanostation: LAN IP Address: 192.168.1.20 WLAN IP Address: 192.168.0.79 Network Mode: Router and is getting its IP via DHCP from my ISP Netmask: 255.255.255.0 Gateway IP: 192.168.1.1 LAN Network settings: IP Address: 192.168.1.20 Netmask: 255.255.255.0 Enable NAT: YES ENABLE DHCP Server: YES Range 192.168.1.100 ~ 250 Netmask: 255.255.255.0 Enable DNS Proxy: YES Linksys: Internet Connection Type: DHCP Router IP: 192.168.2.1 Subnet Mask: 255.255.255.0 DHCP: Enabled Start IP: 192.168.2.100 ~ 120 Advanced Routing: NAT: Enabled What I can do is connecting manually with this config: IP: 192.168.2.101 Subnet Mask: 255.255.255.0 Router: 192.168.2.1 DNS: 192.168.1.20 Search domains: WRT350N I want to be able to connect to both routers independently(now its 192.168.1.20 for Nanostation, and 192.168.2.1 for Linksys) and connect any wireless device using DHCP. What should be IP ranges, masks, etc. on both devices?

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• LM Sensors always returning same (invalid) value for one temp sensor

  - by pkaeding

  I am trying to monitor the temp sensors on a server, and plot them using Cacti. I have lm-sensors installed and working correctly. For example, here is the output from sensors: % sensors acpitz-virtual-0 Adapter: Virtual device temp1: +26.8 C (crit = +100.0 C) temp2: +32.0 C (crit = +60.0 C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +36.0 C (high = +105.0 C, crit = +105.0 C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +42.0 C (high = +105.0 C, crit = +105.0 C) However, when I try to get this data via SNMP, I get only one sensor's temperature correctly, and another one always returns 100.000 C: % snmpwalk -Os -c public -v 1 10.8.0.18 -m ALL lmTempSensors lmTempSensorsIndex.1 = INTEGER: 0 lmTempSensorsIndex.2 = INTEGER: 1 lmTempSensorsDevice.1 = STRING: temp1 lmTempSensorsDevice.2 = STRING: temp1 lmTempSensorsValue.1 = Gauge32: 26800 lmTempSensorsValue.2 = Gauge32: 100000 So, my question is two-fold: Why is the second sensor that is returned by SNMP giving a value of 100 C (when it should be 32 C) Why are my CPU core sensors not being returned by SNMP?

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• SMTP port open - but not open

  - by Frederik Nielsen

  As some of you might know, I am setting up an exchange server. Now I ran into another problem: I cannot connect to the SMTP service from outside the server! The ports are opened in the gateway device (a ZyXEL USG50), Windows firewall is off. I see the packets travekl through the ZyXEL firewall, and I can also see the packets with wireshark on the server, so I know they are getting all the way in to the server. I also know it receives them, and sends out the reply - and this is where things go bad! Analyzing with wireshark, I get these errors in the return packets: Header checksum: 0x0000 [incorrect, should be 0x0779 (may be caused by "IP checksum offload"?)] And: Acknowledgment Number: 0x8e3337d1 [should be 0x00000000 because ACK flag is not set] What the (sorry my French) hell is going on? I really cant figure it out.. Thanks in advance.

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• Experience with AMCC 3ware 9650se raid cards? Ours seems dead

  - by antiduh

  We have a 8-port 3ware 9650se raid card for our main disk array. We had to bring the server down for a pending power outage, and when we turned the machine back on, the raid card never started. This card has been in service for a couple years without problems, and was working up until the shutdown. Now, when we turn the machine on, the bios option rom that normally kicks in before the bootloader doesn't show up, none of the drives start, and when the OS tries to access the device, it just times out. The firmware on it has been upgraded in the past, so it's possible we've hit some sort of firmware bug. We're using it in a Silicon Mechanics R272 machine with gentoo for the OS. The OS eventually boots, but alas, without the card. We've ordered a new one, but I'm worried that if we replace the card it won't recognize the existing array. Has anybody performed a card swap before? Any help would be greatly appreciated.

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• Where does power consumption go in a computer?

  - by Johannes Rössel

  Today we had a weird discussion over lunch: What exactly causes power consumption in a computer, particularly in the CPU? Figures you usually see indicate that only a percentage (albeit a large one) of the power consumption ends up in heat. However, what exactly does happen with the rest? A CPU isn't (anymore) a device that mechanically moves parts, emits light or uses other ways of transforming energy. Conservation of energy dictates that all energy going in has to go out somewhere and for something like a CPU I seriously can't imagine that output being anything but heat. Us being computer science instead of electrical engineering students certainly didn't help in accurately answering the question.

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• Backing up Initial and Running configurations for Nortel Baystack 325-24G

  - by i.h4d35

  I recently came across a Nortel Baystack 325-24G switch. This is the first time I've come across a Nortel device of any sort, so I am a little intimidated. My problem is that I have been trying to get the startup and running configurations via both the CLI and the Menus but its become quite apparent that it isn't like the Cisco Switches/Routers. I've searched online but have only found Configuration Guides by Avaya. Also I'd like to know - is there a way to take backups regularly (something like tftp)? Pardon me but I'm a n00b when it comes to routers and switches. Thanks in advance.. EDIT: Still havent found a way to get the running config via the CLI

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• Hardware asset management systems

  - by Dave

  I need to track a bunch of specialized testing tools, They are hardware devices used for testing other equipement. Each device has a serial number and is sent out for use in testing. Occasionally they break and have to be sent to the manufacture for repair. I'm looking for an open source application (preferably a webapp) to help manage them. Right now we're using Excel and it's not scaling as we get more tools. They aren't computers so all the standard IT asset management systems don't really fit the bill. I found h-harmony, but that project seems dead?

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• virtual box cannot detect webcam in ubuntu

  - by user23950

  I have installed virtual box for ubuntu 9.10. I installed a windows xp inside it. And I don't know why it does not make the webcam available for the yahoo messenger installed in xp. When I click on the device in the interface of virtual box. I can see the webcam but it is grayed out. And I don't know why. It is also not available when I use wine to execute yahoo messenger. And I know that it is working because I can see its working when I use skype for ubuntu. Any suggestions?Its an acer aspire laptop, the webcam is built in.

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• Formatted USB flash drive with Disk Utility on Mac and now it is not recognized on any Mac or Windows machine

  - by Željko Filipin

  I have formatted Canyon CN-MP4A USB flash drive with Disk Utility on Mac and now it is not recognized on any Mac or Windows machine. I have formatted with Disk Utility > drive > Erease > Format > MS-DOS (FAT). Now when I plug it in any Mac or Windows machine, nothing happens. Like nothing is plugged in. It has a screen, and I was able to format it directly from the device before, but now when I turn it on, welcome screen appears, but nothing else. I can not get to the menu. Is there a way I can format it? I am looking for the answer on the internet, but no luck so far.

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• [Ubuntu] How can i log-in to Ubuntu using USB-serial console (rs232) ?

  - by marc

  Welcome, How can enable remote terminal login into Ubuntu 9.10 using usb-serial terminal ? I got created device ttyUSB0 and i want allow to log-in using hyper-terminal. I found some resources but they are related to real! hardware rs232 ports, i can't find any information about USB converter. Right now i have established connection between that usb-serial port and my laptop (i can send text writing to port cp sometext.txt /dev/ttyUSB0 and read using hyperterminal). Any idea ? Regards

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• How to convert PowerPoint presentations into a Kindle/E-reader friendly form?

  - by Shiki

  I have a lot of documents in .ppt and .pptx (blame the co-workers). I would like to read them on way home or elsewhere... when I have a little time to catch up with things. One thing I could do with the documents is cutting them together into one file. But saving that one even if a smaller version of PDF (according to Office 2010) results in a huge file. And PDF is hardly readable on a Kindle. I would need something .epub free, easy-on-the-device way. Is there such a thing? (Manually I could copy all the images down into native text and whatnot and create new presentations, save those, convert them. But that would just take a lot of time.)

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• Ubuntu 12 Server messing up my hard disk

  - by Jeroen Jacobs

  I'm installing Ubuntu server on a disk with 12GB available. During the setup, I choose the default LVM-based partition layout. However for some reason, Ubuntu decides that it only wants to use 4GB of this disk. How do I reclaim the remaining space of the hard disk? "lvextent" doesn't work btw... output of df -h: Filesystem Size Used Avail Use% Mounted on /dev/mapper/ubuntu-root 4.3G 3.4G 754M 82% / udev 3.9G 4.0K 3.9G 1% /dev tmpfs 1.6G 756K 1.6G 1% /run none 5.0M 0 5.0M 0% /run/lock none 3.9G 0 3.9G 0% /run/shm /dev/sda1 228M 25M 192M 12% /boot output of pvdisplay: --- Physical volume --- PV Name /dev/sda5 VG Name ubuntu PV Size 12.32 GiB / not usable 2.00 MiB Allocatable yes PE Size 4.00 MiB Total PE 3154 Free PE 8 Allocated PE 3146 PV UUID dD06RZ-kGcL-1tTX-Ruds-XIDG-ssMd-FIUkzZ my partitions: Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 26343423 12920833 5 Extended /dev/sda5 501760 26343423 12920832 8e Linux LVM when I try lvextent, it says there is not enough diskspace.

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• PPP connection between PalmOS and Ubuntu (over ttyUSB0?) without crashy "visor" kernel module

  - by Chris Boyle

  I have a Palm Treo 680 which I'd like to use as a media remote, using Palm MPC. Almost the exact instructions on that page used to work perfectly for establishing a PPP connection over the USB cable; I think I last tried it in Ubuntu 9.04 (Jaunty). In Karmic, I find that /dev/ttyUSB{0,1} are not present by default, and when I modprobe visor to get them, the Palm immediately crashes and reboots, as seen in Ubuntu bug 522753 (it reboots again as long as the module is still loaded and USB is still connected). The usbserial module has the same result. From reading that bug and elsewhere, it appears that the visor module is abandoned, and jpilot and friends use some other approach to talk to PalmOS over USB these days, which might not even involve a ttyUSB device. My question is, therefore: How do I create a PPP connection between PalmOS and Karmic without crashing the Palm?

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• Compiling the Linux kernel, how much size is needed?

  - by ant2009

  I have downloaded the newest most stable Linux kernel, 2.6.33.2. I thought I would test this using VirtualBox. So I create a dynamically sized harddisk of 4 GB. And installed CentOS 5.3 with just the minimum packages. I setup the make menuconfig with just the default settings. After that I ran make and got the following error: net/bluetooth/hci_sysfs.o: final close failed: No space left on device make[2]: *** [net/bluetooth/hci_sysfs.o] Error 1 make[1]: *** [net/bluetooth] Error 2 make: *** [net] Error 2 The amount of space I have left is: # df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 3.3G 3.3G 0 100% / /dev/hda1 99M 12M 82M 13% /boot tmpfs 125M 0 125M 0% /dev/shm My virtual size is 4 GB, but the actual size is 3.5 GB. $ ls -hl total 7.5G -rw-------. 1 root root 3.5G 2010-04-13 14:08 LFS.vdi How much size should I give when compiling and installing a Linux kernel? Are there any guidelines to follow when doing this? This is my first time, so just experimenting with this.

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• How can I login to Ubuntu using a USB serial port?

  - by marc

  How can enable remote terminal login into Ubuntu 9.10 using a USB serial port? I created device /dev/ttyUSB0 and i want to allow logins using Hyper-Terminal. I found some resources but they are related to real hardware rs232 ports. I can't find any information about USB converter. So far I have established connection between that USB-serial port and my laptop. I can send text to the port (cp sometext.txt /dev/ttyUSB0) and read it using hyperterminal. What do I need to do to enable logins on this port?

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• Amazon mount EBS

  - by William

  I'm trying to mount /vol to a EBS volume on an Amazon EC2 instance. I'm formatting the device to xfs, adding "/dev/sdh /vol xfs noatime 0 0" to my /etc/fstab file, making the /vol dir and mounting it and whenever I try to do anything with that volume (create a file in /vol, cd, ls, anything) or I try to run df the server just freezes. Anyone have any idea what this might be? It's driving me crazy. Edit: It seems to freeze after I mount, has nothing to do with doing any commands to the volume it's self.

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• Windows 2003 shutdown instead of reboot

  - by The_cobra666

  Hi all, I've got a very strange problem. On the net I can only find problems with Server 2003 pc's, that reboot instead of shutting down, but in my case... (go figure) it does the opposite. When I choose to reboot, the system shutdown. Yes I am sure I used the reboot button. It happens via start == reboot and it happens when clicking on the reboot button when the update's have been installed. Nothing changed to the system's hardware. Only update's have been installed on the system. I did notice something odd in the logs when rebooting: Description: Timed out sending notification of target device change to window of "C:\WINDOWS\Explorer.EXE" KB: http://support.microsoft.com/kb/924390 They talk about a removable drive, but in my case, it's explorer.exe :s it appears 4 times. OS: Windows Server 2003 R2. Services: AD, DNS, DHCP, WSUS. Thanks in advance! Greetings from Belgium Shane

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• 8021x wireless clients auto connect prior to user login

  - by JohnyV

  I am using a 2008 r2 dc that also performs Radius (NPS), I also have a 2008 r2 certificate authority which is giving out certificates. The computers are getting the certificate and when a user logs into the device (that has previously logged in) gets put on the correct VLAN (according to there user access). However I cant get the computers to join the wireless network prior to logging in, so that they can log in with their domain accounts and authenticate through the wireless. The basic setup is Computer gets group policy which tells it to get a certificate the computer then has a seperate vlan to join just as a computer account however the wireless computer wont connect through that vlan. (this vlan allows login information only then once the users credentials are verified it puts them onto another VLAN). So I am trying to work out why the notebook wont auto connect to the wireless network as a computer. Thanks

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• Openfiler RAID 10 option not found

  - by chrisling106

  Hi, I'm building a NAS using Openfiler2.3 (from 32-bit ISO), first of all I want to experiment it on VM first before going out and buy the harddrives needed. I created 5 virtual drives on VMware, sda is 2GB and the rest 1GB each (sdb to sde). I left sda blank and want to setup a RAID 10 disk using sdb, sdc, sdd and sde, 4 RAID partitions are setup successfully, but when I try to create a RAID device the only option for RAID level is 1, 0, 5 and 6. RAID 10 is not there! Can someone let me know what have I missed, please? TIA.

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• How to generate a round-numbers graph in Excel?

  - by tcheregati

  folks! Now, I have an Excel file with measurements I made of some color patches (I work at a Press company), with a device called spectrophotometer. Here it is: https://docs.google.com/open?id=0B0i8fdSf2ihzRlFYNWd4anItenM Density and Hue are two characteristics of each color patch. The thing is: I'm looking at a non-linear increase between the 25 Color Density measurements I took, but I NEED to know exactly how the color's Hue changes as the color's Density increases. For that, I needed Excel to give me round numbers for the X axis (for example 0,70 to 1,50 in 0,05 increments). And for that, obviously, I needed Excel to calculate the probable Hue Values corresponding to those ghost/round/not-given values of Density (like a kind of advanced rule of three). So, can anyone help me on that? Thanks a lot!

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• Post Error, Fixed/Removable Media Error

  - by Dan

  Hi, I really do not know what I am missing here. I ordered parts for a new server. The board is an Intel s3420GP. From the diagnostic LEDs I get the error message: 0xB1h which corresponds to "Fixed Media: Disabling fixed media" and 0xB8h which corresponds to "Removable Media: Resetting removable media device." I can not for the life of me figure out what it is talking about. I have two identical motherboards and both gave the error message. I don't have a second CPU yet, so I can't test that. There are no beeps or anything. It seems the server resets every 10 seconds or so (the speaker does work, I put the RAM in the wrong slots on purpose to test this out, and the correct error POST code came up) Please help me, I'm not sure where else to turn or to ask

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• Accidentally replaced the partition table using GParted in UBUNTU

  - by claws

  Hello, This machine has UBUNTU & wINDOWS XP. I'm currently logged into UBUNTU. I was just checking the features of GParted and accidentally clicked Device > Create Partition Table. A default MS-DOS partition table is created. Now if I re-start the Gparted there is nothing. Its showing entire disk as UNALLOCATED space. Lucky thing is All the drives (C:, D:, E:) are currently mounted and I'm in UBUNTU. I guess its possible to re-create the partition table using current status. But I don't know how? Can any one kindly tell me how to do this. This is a lab computer. If its not recoverable. I'm completely screwed!!

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• Linux Logitech QuickCam Pro 9000 - microphone issues

  - by drahnr

  I got a Logitech Quickcam Pro 9000, the cam itself is working as it honors the UVC spec. This fancy WebCam has a integrated mic which worked some time before but now, it does no more. (Note: I use pulseaudio as it is a USB Mic and I am not really keen on the hassle of ALSA setup) Things I check already are if it gets detected at all: $ lsusb |grep Logi Bus 002 Device 002: ID 046d:0809 Logitech, Inc. Webcam Pro 9000 is muted in alsa-mixer - not the case, volume at 100 pavucontrol shows it too, but no input level bar! On top of that, if I open the gnome3 (fallback mode) audio panel(from the desktop panel), and disabel/reenable it in the hardware tab, it works "for some time"... Any hints? Any ideas? I am really out options for now, and the fact it worked like 6 months ago (perfectly) makes it no better.

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• Determining Serial Driver Supported Baud Rates

  - by Jim Fell

  Hello. How can I determine the baud rates supported by my serial driver? My driver details (from the Device Manager) follow, but they do not seem very helpful. I am writing an application that is crashing because I am apparently attempting to to set COM1 to an unsupported baud rate, so I need to know which baud rates the driver does support. Any suggestions would be appreciated. Thanks. Driver files: C:\Windows\system32\drivers\serenum.sys C:\Windows\system32\drivers\serial.sys Provider: Microsoft Corporation File Version: 5.1.2600.5512 (xpsp.080413-2108)

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