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• Can not run ifconfig like commands via browser

  - by savruk

  Problem is I cannot run "ifconfig" or similar commands via browser. Environment: Programming language : python Server : lighttpd(CGI) , running on busybox. Well machine is really small and so I am really restricted. Tried techniques: chown every script to root. But there is no differences. Why? Because lighttpd runs under another user, I mean not under root. As it is not root, when I try to run script from browser it always calls the python file with its uid. So it makes it impossible to run "ifconfig eth0 192.168.2.123" like commands via web browser. I get "ifconfig: SIOCSIFADDR: Permission denied" error. What can I do? I do not have any sudoers file, so cannot modify sudo command. Well, I don't even have "sudo" command :) Thanks for your help

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• Terminal Server/Win2K3: Users can't write to their My Documents or Temp folders

  - by Tim Sullivan

  I have a situation where a bunch of users are running our software on a Terminal Services machine on Windows 2003 Server. I've removed most permissions from the User group, but made sure they all have the appropriate permissions for their own application folders, as well as for their Documents and Settings folder. For some reason, even though everything seems to be set up properly, users can't create or delete files from their My Documents, Temp or other D&S folders. Whatever could be going on? I thought this was going to be straightforward, but clearly it's not! :-) Thanks for any help!

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• Ubuntu server 11.04 recognize only 1 core instead of 4

  - by Kreker

  I searched for other questions and googled a lot but I don't find a solution for solving this problem. Ubuntu Server 11.04 64bit installed on Dell Poweredge with Intel Xeon X5450. He only recognize 1 of the 4 cores I have. Tried to modify the GRUB config but didn't work. IN the machine BIOS I didn't find anything useful. CPU root@darwin:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU X5450 @ 3.00GHz stepping : 10 cpu MHz : 2992.180 cache size : 6144 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 xsave lahf_lm dts tpr_shadow vnmi flexpriority bogomips : 5984.36 clflush size : 64 cache_alignment : 64 address sizes : 38 bits physical, 48 bits virtual power management: GRUB root@darwin:~# cat /etc/default/grub # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=2 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX="noapic nolapic" #was with acpi=off # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" Complete dmesg Too long, posted on pastebin http://pastebin.com/bsKPBhzu

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• Java Issues in Microsoft Internet Explorer & Firefox with Java 6 Standard

  - by sxanness

  I have a user on Windows XP SP3 running Java 6 Standard Edition Update 20 (build 1.6.0_20-b02). The issue is that when Java applets load the Java splash screen is very shaky (I will have to take a screenshot if you don't know what I am talking about) and than the Java applet screen does not show properly. The Applet we use most is for a security camera and you can't view the camera properly because of the Java issues. I have uninstalled Java and re-installed and still having the same issue. I do not see any errors on the Java Console, and this only happens on his computer I am running the same version of Java and the browsers and do not have the same issue on my machine.

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• How to get started setting up IP security cameras

  - by dave

  I have just finished renovating my house. As part of the job, I have cat6 cable run through the house, including two external plugs. All cables terminate in the same location. My rough plan is to plug two IP cameras to monitor the front and rear, run POE from a central router to the two external cameras, plug my PC into the same router and run magic software X. Any machine plugged into the router or wirelessly connection should then be able to get a live feed and alerts based on motion detection. That's the plan, but I'm not sure how possible it is. What hardware to get and what monitoring software to get. Has anyone does something similar? What were your experiences?

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• What's the meaning of logging in as "[email protected]:something"

  - by Harvey Kwok

  My Windows 2008 R2 machine is joined to a domain. In the logon screen, if I type in "[email protected]:something" as the username, I can still logon properly, what's the meaning of ":something" appended at the end? I can even see the current user is displayed as "[email protected]:something" in the switch user screen. Is it a feature in Windows? Or is it just a bug? If it is a feature, what's the difference between logging in as "[email protected]" and logging in as "[email protected]:something"? Note that I tried different combinations like "mydomain\username:something" and "mydomain.com:something\username". None of them work except "[email protected]:something".

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• JEOS

  - by john.graves(at)oracle.com

  JEOS stands for Just Enough Operating System.  It is  great environment for building virtual machines without all the clutter of a windowing system, games, office products, etc.  It is from Ubuntu and you install it using the Ubuntu server install, but rather than picking a standard install, press F4 and choose “Install a minimal system.” Note: The “Install a minimal virtual machine” is specific to VMWare and I plan to use VirtualBox. Be sure to include Open SSH in the install so that it installs sshd. *** Also, if you plan to install XE, you’ll need to modify the partitions to have a larger swap space (at least 1.5 G). *** Once the install is done, I find it useful to install a few other items. Update Ubuntu apt-get update Install some other tools apt-get openjdk-6-jre Yes, java will be included in any of the WebLogic installs, but I need this one if I want to do remote display (for config wizards, etc). apt-get gcc Some apps require to rebuild the kernel modules, so you’ll need a basic compiler. Install guest additions (Choose the VirtualBox Devices->Install Guest Additions…” option.  This sets up a /dev/cdrom or /dev/cdrom1.  You’ll need to manually mount this temporarily: sudo mount /dev/cdrom /mnt Then run the linux .bin file. Update nofile limits.  Most java apps fail with the standard ubuntu settings: edit /etc/security/limits.conf and add these lines at the end: *     soft nofile 65535 *     hard nofile 65535 root  soft nofile 65535 root  hard nofile 65535 These numbers are very high and I wouldn’t do this on a production system, but for this environment it is fin. To get rid of the annoying piix error on boot, add the following line to the /etc/modprobe.d/blacklist.conf file blacklist i2c_piix4

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• Why is my hosts file not working?

  - by elliot100

  I've been using the hosts file to for local website development, and it's recently stopped working. No entries other than localhost resolve. I've simplified to test, so it now contains only 127.0.0.1 localhost ::1 localhost 127.0.0.1 test.dev localhost responds to ping, test.dev does not. The file is called hosts with no extension It has no trailing spaces It's saved in C:\WINDOWS\System32\drivers\etc which matches the value of HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DataBasePath Oddly, despite UAC being on, I can edit, delete and save the file without admin permissions No proxy is being used, PC is not connected to network for testing Stopping the DNS Client service seemed to resolve the issue for a few minutes, test.dev briefly resolved but doesn't any more. Only firewall is Windows' Machine has been restarted. Is there anything else I should try?

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• nginx proxy pass redirect through load balancer

  - by Brian

  I have several backend webservers that are load-balanced using LVS. These machines have only internal non-routable IPs on them. The load-balancer is the only machine with an external IP. This setup works great. I would like to add another webserver for image serving, but it will not be part of the load-balanced pool. Is it possible to proxy pass from the load-balanced web servers to the image server and have the response redirected to the client? Client--external LB--internal web server--internal image server I've gotten proxy pass working when I remove the LB from the equation, but no luck when trying to use it.

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• Network: Incoming connections work, outgoing fails

  - by anirvan

  i recently set up my own server at home to run Ubuntu 12.04 server ed. on booting up, i noticed that a message related to networking comes up, and the booting process pauses. the message read something like - waiting for network configuration and after a while - waiting another 60 seconds... on booting up, I realised that any command which requires a network connection was not working - ping, apt-get install, etc. on firing the ifup eth0 command, I get the error RTNETLINK answers: File exists. Failed to bring up eth0. I also realised, while searching the web for this problem, that this is probably one of the most common networking related issues - however, most of the questions are around setting up multiple IPs for the same machine. ifdown eth0 also fails, stating that eth0 is not configured. my /etc/network/interfaces file has a simple configuration for a static IP: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address xx.xx.xx.xx netmask xx.xx.xx.xx broadcast xx.xx.xx.xx gateway xx.xx.xx.xx dns-nameservers xx.xx.xx.xx The strangest part of this problem is that, while I can't connect to anything outside, I can ping to this particular server using the static IP configured in the interface file, and, i can even SSH into it! I'm really at ends here with this problem, and any guidance is much appreciated. Thanks!

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• Dell XPS 710 - Boot Device Not Available

  - by WilliamKF

  Recently I was gifted a Dell XPS 710 tower running WinXP SP3. It was running fine until today when I restarted and received a blue screen and the error "unmountable boot volume". In order to fix this issue I've attempted to boot from the Windows XP CD and run chkdsk. However when I attempt to boot from the CD drive I get a "Boot Device not Available" error. Next I made a bootable USB flash drive, but receive the same error as the CD drive. The BIOS recognizes the CD and flash drives, and they appear in the boot device list, but neither will boot. I've attempted to resolve this by re-arranging the boot order in the BIOS and switching IDE channels/setting jumpers on the drives themselves, to no effect. I cannot move the hard drive to another machine because the XPS is the only one that supports SATA drives.

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• Nagios: Which services should I monitor on different roles of servers?

  - by Itai Ganot

  I've started working in a new workplace and my first task is to build a Nagios server and configure it to monitor the servers in the network. Since I'm starting from scratch I wanted to hear from you, experienced users, which checks should I configure for each role? For example, there are some basic checks which I run on each Linux machine I monitor: SSH, Ping, Load, Current Users, Swap Usage, etc... Now my question is, which specific checks should I run for a DataBase server, for a Networking Switch, for Httpd servers? (I currently monitor how many httpd processes are running) Thanks in advance

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• show php error message on IIS 7

  - by Max

  I am using IIS as a webserver on my development machine for PHP webdevelopment. Or at least, I am trying to. When there is a syntax error in a PHP script and I open that file in my webbrowser, I just get an 503 "internal server error" and the default IIS error page for this error. Some browsers dont open that file at all, possibly because of the 503 HTTP Response Header. I would like IIS to act in that case just like the apache webserver: display the PHP file with the error anyway, so that the error message gets printed out. How can this be done? EDIT: PHP settings: display_errors is on and error_reporting is set to E_ALL

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• Arch Linux shows a blinking cursor instead of a booting installer

  - by fakedrake

  Arch Linux shows a blinking cursor instead of a booting installer. I ran sudo dd if=archlinux-2010.05-core-i686.iso of=/dev/sdb1 and checked the MD5 sums. I tried to boot it on two different PCs and got the same result: instead of booting GRUB — or anything useful, for that matter — it just showed a blinking cursor at the top left corner of the screen. The machines became unresponsive to any kind of input, the flash drive LED didn't seem to blink or shiver at all and there seemed to be no other activity whatsoever. I tried using another flash drive, but the machine completely ignored it, booting Windows "normally."

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• Windows 7: Server disappearing from Network window

  - by David Veeneman

  I am running a small (three computer) network on a Windows Server 2003 domain. All of the computers were just upgraded to Windows 7. Since the upgrade, the icon for the domain server periodically disappears from the Network window on all three computers. It doesn't happen at the same time on all computers--the icon typically disappears from one machine, but not the others. And it's not always the same computer. The network connection is still there--I can type \\myserver and get to the network shares. It's simply the icon that's disappearing. Has this happened to anyone else? Any suggestions for a fix? Thanks in advance.

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• Forms Authentication across Sub-Domains on local IIS

  - by Parminder

  I asked this question at SO http://stackoverflow.com/questions/8278015/forms-nauthentication-across-sub-domains-on-local-iis Now asking it here. I know a cookie can be shared across multiple subdomains using the setting <forms name=".ASPXAUTH" loginUrl="Login/" protection="Validation" timeout="120" path="/" domain=".mydomain.com"/> in Web.config. But how to replicate same thing on local machine. I am using windows 7 and IIS 7 on my laptop. So I have sites localhost.users/ for my actual site users.mysite.com localhost.host/ for host.mysite.com and similar.

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• /data/tmp on database server?

  - by Mellon

  I am on a Linux ubuntu machine with MySQL installed. My teacher gave out an assignment which mentioned "copy cars.dat to /data/tmp on the MySQL database server" without any explanations, I do not know what is the "/data/tmp on database server" means exactly? Basically after that I need to execute SQL statement like LOAD DATA INFILE '/data/tmp/cars.dat' INTO TABLE cars So, what does copy cars.dat to /data/tmp on the database server means as there is no /data/tmp directory even? Personally, I checked /etc/mysql/my.cnf file, inside which there are definitions of : ... basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp ... Does it mean to copy cars.dat to the tmpdir which is just /tmp under root directory??

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• How do I modify these VPN connection settings for Xfce?

  - by Dave M G

  I have signed up for a VPN (Virtual Private Network) service, and I configured it for use on my computer that runs Gnome Classic with the following instructions: In Terminal, install openvpn packages with sudo apt-get install network-manager-openvpn. 1. Restart the network manager with sudo restart network-manager 2. Run sudo wget https://www.xxxxxxx.com/ovpnconfigure.zip 3. Extract the files from the zip with unzip ovpnconfigure.zip. 4. Move cert.crt to /etc/openvpn 5. Open the Network Manager on the menu bar. 6. Choose add and select the OpenVPN connection type, and click Create. 7. Enter Private Internet Access SSL for the Connection Name. 8. Enter xxxxxx.xxxxxxxx.com for the Gateway 9. Select Password and enter your login credentials. 10. Browse and select the CA Certificate we saved in Step 3. 11. Choose Advanced and enable LZO Compression. 12. Apply and exit. 13. Connect using the Network Manager. It worked, but now I want to set up access to the same VPN service on another machine that runs Mythbuntu, which uses Xfce as its desktop manager. So every point from 5 on doesn't apply. How can I modify the above instructions so that I can get my VPN service working with Xfce. As a further note, while I can access the Xfce desktop directly if I need to, it's more convenient for me to access it via the command line and SSH from on of my other computers. A command line process would be ideal. (I looked for this, and found instructions only for PPTP access, whereas I need OpenVPN.)

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• Is an eee-pc with an Atom N550 dual core OK for Rails 3 development?

  - by dan

  I'm buying an Asus eee-pc 1015PEM and hope to do test-driven Rails 3 development on it. Is the CPU fast enough or too painfully slow for this? I plan on installing Ubuntu. I currently develop on a 11 inch Macbook Air 2010 model. It works fine as a Rails development machine. But for some reason I'm drawn to developing on a cheap little netbook. I don't use any IDE's, and my development workflow is mostly switching between Vim, Gnu Screen, and bash.

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• How do I import Outlook 2007 accounts and rules and IE usernames and stored passwords from old HD?

  - by raya

  I had an older PC running Win7 and the motherboard died on me. I've since updated my PC to another Win7 machine running a RAID 0 along with my old HDD installed as an extra drive. The problem is, I need to somehow import my Outlook email accounts (10) and rules along with my IE usernames and adjacent stored passwords for all the sites I've visited. I don't want to have to recreate the wheel for all this data. What I've found is that I have to run regedit in order to do so, but I cannot seem to boot to the old drive in order to run regedit and export the files. Can someone please help me?

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• How can I programmatically change the keyboard layout?

  - by Jason R. Coombs

  I want to run a shell command or script that will configure each of my Ubuntu Precise boxes to use the Dvorak keyboard layout as the default (and only) layout. With earlier versions, I was able to set the XKBVARIANT in /etc/default/keyboard but when I make this change in Precise (and reboot), the keyboard layout appears to be unaffected (both in console and in gnome). I tried also setting the XKBMODEL to pc105 and XKBLAYOUT to us, but that did not seem to help. I know I can set the layout for gnome using the 'keyboard layout' tool... but I want the change to affect the console, and I want to automate the process. How can I accomplish this? Edit: To clarify, I want to know how I can cause to change (using only a script or command-line) the keyboard layout to be Dvorak as the default and only keyboard layout for both Gnome and the console. I want this change to be persistent (survive reboots), just as it is when the change is made through the Keyboard Layout tool. Edit: Let me put it another way. If I had installed the operating system myself (which I did not because the OS was installed by the virtual machine infrastructure), I could have selected the desired keyboard layout at install time, and that layout would be applied persistently, system-wide. How can I change the layout to appear as if I had set it during the install process?

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• remote symbolic link / junction

  - by Blueberry

  Might be a pretty obvious one but have had some trouble finding solid answers. I have a directory on a windows network share containing different versions of an application. I would like to have a link to one of these called 'current', which will be a symbolic link to the directory sitting beside all the other versions and pointing to one of these. Creating this link seems to be more of an issue than I would have thought. Looks like symlink only shows the link on the same machine as where it was created (which is not going to work for obvious reasons) and junction needs to be run on the server which is practically impossible due to various restrictions. What would be the best way to go about this? Would I just need to copy the files twice or can I have a symbolic link which can be created and accessed remotely?

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• Windows 7 just restarts, no BSOD, shows "Event ID 14 volsnap"

  - by Mdc007

  My Windows 7 just restarts without giving me a BSOD. When it reboots, it will hang sometimes and you have to let it rest. Sometimes it will print a message saying that Hal.dll is missing or corrupt. When it does restart I can't run a backup or a clone drive – it comes up with constant errors. I tried to run chkdsk – it says everything's clean. What is really puzzling is SyncToy on a different drive hangs half way through and won't run either. Machine: OCZ SSD Agility 2 for C drive SATA HDD for programs, documents on D drive MSI AMD 880 chipset Event viewer says something about critical power failure I/O operations and "Event ID 14 volsnap" – but that is just telling me the computer powered off which I already know.

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• Streaming video in Virtualbox jumpy

  - by Kevin

  I am trying to get Netflix to work on my Ubuntu netbook. I know it will not run in Linux so I am trying it in my Win XP virtual machine. It streams the video but the sound and video are out of sync and the video often freezes and jumps. I have tried Firefox, Chrome, and even IE. I am thinking my Atom N455 processor does not work well with virtualization. All other apps in the VM work fine. The only issue is streaming [YouTube is jumpy too].Does anyone know of Virtualbox settings I can try to possibly fix this issue or am I out of luck?

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• How secure is Remote Desktop from OSX to Windows Server 2003?

  - by dwhsix

  It's unclear to me exactly how secure Remote Desktop access from OSX to a Windows Server 2003 machine is. Is the communication encrypted by default? What level of encryption? Are there best practices for making this as secure as possible? I found http://www.mobydisk.com/techres/securing_remote_desktop.html but it's unclear how much of that is still relevant for current versions of RDP and Windows Server. I know I can tunnel RDP over ssh, but is that overkill or redundant? Thanks...

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