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  • LDAP (slapd) creating users with access to specific trees

    - by Josh
    I am setting up a CentOS server with Virtualmin and Postfix, and I am trying to use LDAP to store unix users, groups, Postfix aliases and virtual domains. I am following the instructions from Webmin's site. I have created an LDAP domain and configured Postfix to fetch Aliases and Virtual Domains from LDAP, but in order to do so I had to configure postfix to authenticate with the master LDAP account, cn=Manager,dc=mydomain,dc=com. This seems like a terrible idea because that account has access to the Users and Groups, which postfix does not need access to. How can I create a new LDAP account for Postfix which only has access to the LDAP trees Postfix needs?

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  • sar command to generate only CPU utilization and network statistics in Linux

    - by Vijay Shankar Kalyanaraman
    I want to be able to generate the system activity report every 30 seconds or every minute and store in a file and use it for diagnostic purposes on my VM. So I give an output file for the sar command and read it using the "-f" option. But I only use the CPU utilization and network utilization part of the report and so rest is all that I don't want to save (waste the space in the disk to store these reports). Also the sar files that are generated are all binary. Is there a way to collect these stats for the CPU and network utilization alone? and so save almost 2/3rds the space on the disk?

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  • Bridging VirtualBox over OpenVPN TAP adapter on Windows

    - by Sean Edwards
    I'm trying to configure a virtual machine (VirtualBox guest running Backtrack 4) with a bridged adapter over a VPN connection. The VPN is is hosted by the cybersecurity club at my university, and connects to a sandboxed LAN designed for penetration testing against various servers that the club has built. My host (Windows 7 Ultimate) connects to the VPN fine and is assigned an IP through DHCP, but for some reason the VM can't do the same thing, and I'm not sure why. It's like OpenVPN is filtering out packets from the MAC address it doesn't recognize. I want the virtual machine to bridge over the VPN connection, because our IT office has very strict policies about what you can and can't do on the network. I want to be able to run active attacks (ARP spoofing, nmap, Nessus scans) in the sandbox environment without risking the traffic accidentally going over the university network and getting my internet access revoked. Bridging over the VPN connection and running all attacks from inside the VM would solve that problem. Any idea why the host can use this interface, but the VM can't?

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  • rEFIt can't sync GPT and MBR after resizing boot camp partition

    - by benwad
    I've been trying to follow the instructions here to increase the size of my boot camp partition: http://plonsdale.wordpress.com/2011/06/24/tech-tip-increasing-the-size-of-a-bootcamp-partition-with-free-tools/ I got as far as step 3 when I booted from the rEFIt CD. I selected the partitioning tool and it gave me the following message: Error: Not Found returned from gptsync.efi Now the Windows boot camp partition doesn't show up when I hold alt when starting my mac. Trying to boot into Windows using the rEFIt CD gives me a message saying no Windows installation is found. I then booted off the Windows 7 install CD and the 'repair' option gave me this message: This version of System Recovery Options is not compatible with the version of Windows you are trying to repair. Try using a recovery disc that is compatible with this version of Windows ...and if I try and go install a fresh version of Windows on this partition using the 'Custom (advanced)' option I get an error about the partition saying: Windows cannot be installed to this disk. The selected disk is of the GPT partition style

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  • Is it possible to retrieve lost Windows XP profile information?

    - by Simon Shaw
    I'm running Windows XP Professional on a PC which is less than a year old. About 3 months ago I got an error on boot saying windows could not find my profile. At this point it created a temp one. On this occasion I copied the temp data back into my existing profile and carried on using it. After another month it died again and, once again set me up a temp user. Each time this happens I lose everything related to my profile (desktop, start menu, etc). I ran checks on the hard disk and these suggested nothing was wrong so this seems a software issue not a disk problem. On the advice of my computer manufacturer I am now considering reinstalling Windows but just wanted to check if there's any other ideas for things I might be able to try. Any suggestions for what could be causing the problem would also be gladly appreciated.

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  • Direct DB to Web Server connection

    - by Joel Coel
    I have a database server sitting right underneath a virtual machine host server in the rack, and this vm host is primarily responsible for servers hosting a couple different web sites and app servers that all talk to databases on the other server. Right now both servers are connected to the same switch, and I'm pretty happy with the pathing. However, both servers also have an unused network port. I wondering about the potential benefits of using a short crossover or normal+auto mdix network cable to connect these two servers together directly. Is this a good idea, or would I be doing something that won't show much benefit and is just likely to trip up a future admin who's not looking for this? The biggest weakness I can see right now is that this would likely require a code change for each vm app to point to the new IP of the database server on this private little network, and if I have a problem with the virtual machine host and have to spin up it's guests elsewhere while I fix it I'll have to change this back before things will work.

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  • MacBook Pro - 72k vs 54k rpm drives - Heat and Noise

    - by webworm
    I am looking at a new 15" MacBook Pro for development purposes. I am planning to run a Virtual Machine for about 50% of my work (Windows 7 x64, IIS, SQL Server, and VS 2010). The upgrade from a 54000 rpm drive to a 72000 rpm is only $45. From what I understand the faster rotational speed of the 72000 rpm drive will help virtual machine performance. However, I am concerned that additional heat and fan noise might be an issue. I will be running mostly on A/C power so decreased battery life is not a major concern for me. Since I would be running with a Core i7 processor which gives off a fair amount of heat already I was wondering if it might be best to stay at 54000 rpm for the hard drive. What do you all think? Thanks!

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  • Which is faster for read access on EC2; local drive or EBS?

    - by Phillip Oldham
    Which is faster for read access on an EC2 instance; the "local" drive or an attached EBS volume? I have some data that needs to be persisted so have placed this on an EBS volume. I'm using OpenSolaris, so this volume has been attached as a ZFS pool. However, I have a large chunk of EC2 disk space that's going to go unused, so I'm considering re-purposing this as a ZFS cache volume but I don't want to do this if the disk access is going to be slower than that of the EBS volume as it would potentially have a detrimental effect.

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  • Windows XP waits for usb drive on almost every operation.

    - by Tomasz Kowalczyk
    Hello everyone, I have a problem with my Windows XP operating system, particularly with the USB device that is plugged in - 1TB WD My Book external drive. I haven't found any information about such behaviour when searching in Internet, so I have to ask You. The problem is: when I am using computer, especially during work (programming), when I try to access any information on a hard disk ("internal" one), Windows seems to "consult" it with the external drive. For example, when I open file selection dialog window, if I try to change directory, system activates external drive, reads something (I hear the disk's operational noise) and after some seconds of such pause it makes the operations I requested. There are many situations in which I can reproduce this behavior - opening My Computer, shutting down system, opening partition folder from My Computer - every operation involves the usage of external drive. Please understand me properly - this is not something that happens EVERY time, but at least "many" times a day. What causes such behavior and how can I "turn off" external drive when it's not needed? Thanks in advance for your answers.

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  • Apache: how to set custom 401 error page and save original behaviour

    - by petRUShka
    I have Kerberos-based authentication with Apache/2.2.3 (Linux/SUSE). When user is trying to open some url, browser ask him about domain login and password like in HTTP Basic Auth. If user cancel such request 3 times Apache returns 401 Authorization Required error page. My current virtual host config is <Directory /home/user/www/current/public/> Options -MultiViews +FollowSymLinks AllowOverride None Order allow,deny Allow from all AuthType Kerberos AuthName "Domain login" KrbAuthRealms DOMAIN.COM KrbMethodK5Passwd On Krb5KeyTab /etc/httpd/httpd.keytab require valid-user </Directory> I want to set nice custom 401 error page with some instructions for users. And I added such line in virtual host config: ErrorDocument 401 /pages/401 It works, when user can't authorize apache redirects him to my nice page. But Apache doesn't ask user login\password as it did before. I want this functionality and nice error page simultaneously! Is it possible to make it works properly?

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  • Recommended RAM and disc space for Oracle 11g on Windows

    - by Álvaro G. Vicario
    I need to provide the recommended amount of RAM and disc space (divided in two partitions) so the customer can create an appropriate virtual machine to run Oracle. All I could find in the documentation was a brief listing with minimum RAM and typical/advanced install types. The virtual machine will run latest Oracle Standard Edition One (11g release 2 so far) under Windows Server 2008 x64 and will host a reasonably low traffic web application. How much RAM and disc must I ask for in order to be safe? (Feel free to ask for further details if I've omitted something relevant.) Update: Rough estimations: Database size: 10 MB after installation Growth rate: +3MB per day on average Size of database 'active' data: (not sure of what this means, there's not actual archive so I guess all data is current) Amount of data written per second in peak hours: a few KB Number of client sessions: 3 or 4 at most Frequency and response size of most heavy requests: some reports make heavy table JOINS that need up to 20 seconds to complete but they won't return more than a few thousand rows with plain text. The app also handles BLOBs (typical size from 50KB to 200KB)

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  • How can I compact the VHD file with Ubuntu?

    - by AmShegar
    I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC. It is situated on the dynamic virtual hard disk. I want to compact this VHD (The real size is 50 GB, 360 GB on the disk). But I can not do this, because the Ubuntu file system is not NTFS. What do I need (gparted, sdelete, ...) for solving this problem? The main problem is that the filesystem is not NTFS, but ext4.

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  • Is there any way to make cherokee server portable?

    - by Tom
    I develop on different machines. I use MAMP, I have it installed on my dropbox folder and created symbolic links to the applications folder. That way if I work one day on my desktop and make changes to let's say a database schema and next day I work from my laptop I won't have to do any db migration stuff the same applies for all the apache virtual hosts I have setup using MAMP. Everything is portable. I recently started using Cherokee server and I like it a lot. I would like to replace MAMP with Cherokee but first I need to be able to make it portable. I don't want to have to configure multiple virtual hosts, settings, etc., on multiple machines. Is there any way I can set up Cherokee to be as portable as MAMP? What if I want to run Cherokee from a thumbdrive?

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  • Is there an application I can run that will tell me how fast my computer is running?

    - by Robert Hume
    At work I log into a virtual Windows machine. I'm told it runs as fast as a PC, but I'm skeptical. Is there an application I can run on the machine that will tell me how faster the machine is actually running? It would be nice if it ran on Windows and on Mac. Updating with more details -- I was asked "why does it matter" -- here's why: It matters because I'm a programmer and I need as much speed (CPU and memory) as possible to do my work. IMO, the virtual machine is noticeably slower than a basic $800 PC would be, but I need a way a proving it. Websites like Bandwidthtest.com can show me my internet speed, so I'm wondering if there's an app that can test my computer's speed.

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  • What are the strategies available to minimise badblocks on an encrypted partition?

    - by David Andreoletti
    Let me explain my backup strategy and the problem I am facing. My current backup strategy: Open encrypted container and execute Carbon Copy Cleaner on it at least once a week. Rotate backup disks. Problem: I have an Truecrypt partition on my 1st external hard disk. I recently found out that some files on this encrypted partition cannot be read due to bad blocks (reported by Antonio Diaz's GNU 'ddrescue'). My backup strategy is ineffective in this scenario because bad blocks are discovered during backup. Possible strategy Strategy #0: Have the encrypted partition over a RAID 1 with 2 disks. Is this a suitable strategy ? Strategy #1: Do you think of any other one ? Environment: Mac OS X 10.8 External 2.5" hard disk (SATA) No RAID

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  • Windows server 2008 r2 console stuck at "waiting for user profile service"

    - by support
    Hi, I have a windows 2008 R2 server, running on dell poweredge t300. Using hyper-v to run a windows 2008 R2 server also. Suddenly, today, my virtual console (on the virtual copy of windows 2008 server r2) will not let me login as administrator. It starts to login but then sticks at the message: Please wait for the User profile Service and is unresponsive to keypresses (incl ctrl-alt-del). The only way out is a crash. It starts up in safe mode without networking ok but not in safe mode with networking. Any suggestions on how to fix this would be appreciated Thanks

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  • What type of malware can reside in windows restore?

    - by qwertymk
    I was reading aking1012's comment on How to create Windows Vista/Windows 7 Startup disk or Rescue disk or system restore points on a CD? . He says that: The first thing I usually do is disable system restore. Some REALLY nasty malware hides in there and is very difficult to delete. As far as rescue media, I make a full backup image. It doesn't directly address the question so it's a comment not an answer, but I thought it was worth noting What type of malware can hide there, and how is that possible as the restore info must be stored with a checksome to make sure it's not modified, right?

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  • HP Probook 4530s great specs, but lagging. Hard Drive?

    - by Mark
    I have this laptop, which has a i3 processor, 4gb memory, 7200rpm hard drive. So there is nothing wrong with the specs. Even when I have no applications open, simply closing and opening windows, lags. Or opening the start menu, or dragging icons across the desktop. sometimes even the cursor lags. So I checked out the resource monitor, and the resources using disk activity are svchost Avast ------- my antivirus, but not much System (PID 4) ------ This is using a huge chunk The total disk activity fluctuates between %50 - %100

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  • safeboot and wubi

    - by G S
    Hi, Having read various posts it seems clear that installing Wubi on a machine which already has safeboot installed with disk encryption is a non-starter at the moment - nor is repartitioning the disk it would seem. However while the c: partion is encrypted - it has an NTFS formatted q: partition that is not encrypted and has about 4GB free - so I was wondering if there was any way to install WUBI using that partion. Obvisouly stil need a means of booting into it without stuffing my safeboot booting mechanism. I'm thinking that this should be possible as the safeboot booting mechanism will get me to the boot choice options and thereafter all references in the boot.ini entry for the wubi installtion should be to files on the non-encrypted NTFS partion and so it should be OK and not attempt any changes to my envrypted c: partion (other than adding the extra entry to boot.ini) ? any thoughts? ta

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  • Making lighttpd redirect from www.exampe.com to www.example.com/cgi-bin/index.pl

    - by jarmund
    What the title says.. www.example.com is defined in lighttpd.conf as a virtual host: $HTTP["host"] =~ "(^|\.)example.com$" { server.document-root = "/usr/www/example.com/http" accesslog.filename = "/var/log/www/example.com/access.log" $HTTP["url"] =~ ".pl$" { cgi.assign = (".pl" => "/usr/bin/perl" ) } } However, instead of going by the files listed in index-file.names (the usual index.html, default.html, etc), i want all requests to the root of the virtual host to be forwarded to /cgi-bin/index.pl. What's the easiest/best way of doing this? This need is a special case, and will only apply to this virtualhost. Is it possible to have that particular virtualhost send a redirect in the header?

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  • Which are the most important directories to backup on a Linux server?

    - by QAH
    Hello everyone! I'm running an Ubuntu 9.10 Linux server. I'm trying to find a way to backup the machine while it is running and from what I see, this eliminates the disk clone utilities. All of the disk clone stuff I have seen for Linux requires that you reboot into a special live CD. So my question is this, what is the best solution for backing up the system while it is running? Also, I don't really care about the OS config too much, I just want to be able to keep my stored files and my programs that I have installed on it. Thanks

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  • fedora liveUSB fails, drops to debug shell

    - by evan
    Trying to install Fedora 15 via a live USB made with unetbootin. I get to the unetbootin boot menu, select Fedora-15-x86_64-Live-Desktop.is, I get to this screen, then it drops into a debug shell with the message sh: can't access tty: job control turned off. The last message is dmseg is dracut Warning: No root device "live:/dev/disk/by-label/Fedora-15-Beta-x86_64-Live-Desktop.is" found. Seems to be the same problem detailed here. Tried to try nk1eto's solution but there is no by-label directory in /dev/disk. There's by-id, by-path and by-uuid.

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  • Can't add German as input language in Windows XP

    - by jdm
    I have a laptop that was brought to a computer shop for a hard disk problem. They replaced the disk and reinstalled windows XP, although the English version (the laptop has a German keyboard). I'd like to switch the input language to German. Usually I know how to do this (via "Regional and Language Options"), the problem is when I choose Languages/Details/Add... it doesn't offer me the German keyboard layout: It also uses the "Standard 101/102-Key or Microsoft Natural PS/2 Keyboard" driver - the laptop's keyboard is a 104/105 key German version. I can't seem to change this. Did I just miss the setting, or what is going on here?

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