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• Ubuntu Server 12.04 LTS on Hyper-V 2012

  - by user137533

  I have the following scenario: Hyper-V 2012 server core installation. On top of this i created a virtual machine on which i tried installing Ubuntu Server 12.04 which should not have any compatibility issues according to what Microsoft and Ubuntu are saying (although it is not officially supported). I start, run the installation and everything is ok, no problems detecting the network device or the hard drive (unlike debian which didn't even detect the hard drive). Once the installation is complete it asks me to reboot, it unmounts the "dvd drive" and reboots. Once it tries to start again i get the following error: Boot failure. Reboot and Select proper Boot device or Insert Boot Media in the selected Boot device. It seems to not be booting up from the virtual hard drive. The hard drive is set up in SCSI mode, nothing mounted on the IDE controller (no iso image or anything else. Does anyone have any ideas on what i can do to solve this?

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• pip install fails on guest Linux Mint 15

  - by synergetic

  On my Windows 7 PC, I installed VMware VM for Linux Mint 15. Windows PC is behind corporate firewall /proxy server. Now inside Linux I issued: sudo apt-get install python-virtualenv Then created ~/projects folder and python virtual environment: mkdir projects cd projects virtualenv venv Then activated my virtual env: . venv/bin/activate So far no problem. Then tried to install python libraries, for example markupsafe: pip install markupsafe It throws an error: Cannot fetch index base URL https://pypi.python.org/simple/ Could not find any downloads that satisfy the requirement markupsafe No distributions at all found for markupsafe Storing complete log in /home/me/.pip/pip.log Inside pip.log I found: <urlopen error [Errno 104] Connection reset by peer> Installing any other library throws similar error. What's wrong here?

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• Optimized CSF LFD to miminize false positive emails on new install? Centos6.2 + ISPConfig3

  - by Damainman

  I have a remote dedicated server running CentOS 6.2 x64bit with ISPConfig3. This is a brand new install. Server Purpose: Basic LAMP Web Hosting with PureFTPD, BIND, CLAMAV, RKHunter. Any advice or link to a guide which will clearly explain how to optimize the CSF+LFD configuration is greatly appreciated. I am not exactly sure on where to start what I shouldn't loosen the restrictions on. At the moment my inbox is flooding with alerts from LFD such as: Suspicious process running under user postfix Excessive resource usage: haldaemon Account: haldaemon Resource: Process Time Exceeded: 1823 1800 (seconds) Executable: /usr/sbin/hald Command Line: hald PID: 1031 Killed: No Excessive resource usage: amavis Time: Tue Jun 5 12:43:35 2012 -0700 Account: amavis Resource: Virtual Memory Size Exceeded: 330 200 (MB) Executable: /usr/bin/perl Command Line: amavisd (virgin child) PID: 27931 Killed: No Excessive resource usage: apache Time: Tue Jun 5 12:35:33 2012 -0700 Account: apache Resource: Virtual Memory Size Exceeded: 437 200 (MB) Executable: /usr/sbin/httpd Command Line: /usr/sbin/httpd PID: 27286 Killed: No

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• ISPConfig 3 SSL automatic rewrite

  - by lol

  I was wondering how you could get apache2 to redirect http://server.com:8080 to https://server.com:8080 - I have an ISPConfig 3 setup and the http://server.com:8080 virtual host currently prints a 400 back request error given that I've tried adding RewriteEngine on RewriteCond %{HTTPS} !^on$ [NC] RewriteRule . https://%{HTTP_HOST}:8080%{REQUEST_URI} [L] to the ispconfig.vhost file (and reloading the conf) with no success --edit!-- I've been playing around with it and adding an 'always redirect to google' into the ispconfig vhost and it works once you've already started talking ssl to it. this means the non-ssl connections are getting 'bad request errors' before the vhost is loaded... but where...? --edit 2!-- nope, the ssl is handled exclusively by the virtual host - if I turn off the ssl engine then the rewriting works perfectly (but obviously there is no ssl at https://) thanks!

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• Windows 7 using exactly HALF the installed memory

  - by Nathan Ridley

  I've taken this directly from system information: Installed Physical Memory (RAM) 4.00 GB Total Physical Memory 2.00 GB Available Physical Memory 434 MB Total Virtual Memory 5.10 GB Available Virtual Memory 1.19 GB Page File Space 3.11 GB Also the BIOS reports a full 4GB available. Note the 4gb installed, yet 2gb total. I understand that on a 32 bit operating system, you'll never get the full 4gb of ram, however typically you'll get in the range of 2.5-3.2gb of ram. I have only 2gb available! My swap file goes nuts when I do anything! Note that I have dual SLI nvidia video cards, each with 512mb of on board ram, though I have the SLI feature turned off. Anybody know why Windows might claim that I have exactly 2gb of ram total? Note: previously asked on SuperUser, but closed as "belongs on superuser" before this site opened: http://serverfault.com/questions/39603/windows-7-using-exactly-half-the-installed-memory (I still need an answer!)

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• Trouble installing ubuntu server on virtualbox (osx)

  - by audio.zoom

  Hello all, I'm trying to install lucid lynx 10.04.2 server on a virtualbox on snow leopard. I have 2 server iso files freshly downloaded one i386 and one 64bit. When I try to start the virtual machine with either one set to be the cd drive I'm getting the same error: Failed to open a session for the virtual machine Ub. Failed to load VMMR0.r0 (VERR_SUPLIB_OWNER_NOT_ROOT). Unknown error creating VM (VERR_SUPLIB_OWNER_NOT_ROOT). Couldn't find anything on it on google so I'm trying to see if anyone else has dealt with this issue. Thanks much in advance! edit: just downloaded the 32bit desktop edition to same avail edit2: ran Disk Utility' replair permissions then restarted. New error VERR_SUPLIB_WORLD_WRITABLE (instead of VERR_SUPLIB_OWNER_NOT_ROOT)

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• Performance problem with Win Server 2008 at vbox on Ubuntu 9.10 Server

  - by Diskilla

  Hey, i´ve got an Ubuntu 9.10 Server and tried to install Windows Server 2008 in a virtual machine. The Problem is, the Server has got 8 cores, but the virtual machine seems to have problems with that. The VM is very slow and not really usable if i set the VM-config to more than one core. Is it set to only one core everything works fine, but thats not a solution because I bought the Server with several cores for a reason... Does anybody know this problem or has got a solution? I feel like I read the entire internet via Google... no solution found. Greetz Diskilla P.S.: I´m from Germany and it´s kind of hard to ask in english :-) I hope I din´t make that much mistakes.

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• Install Windows Server 2008 Core on a Dell Optiplex 790

  - by Alex Marshall

  Does anybody have experience installing Windows Server 2008 Core on a Dell Optiplex 790? When I connect to the machine with the Hyper-V Manager Administrator snap-in, and try to create and run a virtual machine, I get the error "The Virtual Machine could not be started because the hypervisor is not running". I've disabled the Execute Disable functionality in the BIOS as was requried for other Dell models, but no matter what combination of security and virtualization settings I use on the machine, I can't get this working. EDIT: I've installed Windows Server 2008 Core on a Dell Optiplex 790, and I'm trying to install and setup a guest VM on the Hypervisor EDIT 2: The Hyper-V role is installed and configured, without any errors in the event log. Hardware-assisted virtualization is also enabled.

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• Machine freezes when configuring dual display on Ubuntu 9.10 (karmic)

  - by sa125

  Hi - I'm trying to configure dual displays on an Ubuntu 9.10 machine. When I connect the 2 screens (1 VGA input, the other DVI), I see them in a mirrored display. I opened up Display Settings and unchecked the 'mirror screens' box, and when I clicked apply, the machine froze and I had to force restart it. This happened repeatedly for about 6 times until I gave up. How do I set it up to boot up normally with dual display working? thanks. edit: I thought it might be related to the virtual screen size, so I tried to edit /etc/X11/xorg.conf to add: SubSection "Display" Virtual 2560 1024 EndSubSection But that didn't do much. Each screen works fine on it's own, and together with mirrored display.

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• Network wide rule to forwared IP address

  - by Patrick

  Hi, we have a virtual machine which hosts a web based bug tracker in our network which is reached internally via e.g. 192.168.1.5:9800. From the outside we made a port forwarding in our firewall so that the web site can be reached via e.g. 72.10.10.10:9800. Now that works fine but the problem is that we got different IP addresses to reach the same service depending if we are in the office or at home and when the service sends out an email the link doesn't always work :) So we are looking for a solution to fix it. One could be to make a rule in out firewall that all communication to 72.10.10.10:9800 is forwarded to 192.168.1.5:9800... If that's possible that is considering it's an IP address + a port. The reason we used a port is because we only got one static public IP address but multiple virtual web appliances. Thanks for any suggestions or solutions :) Patrick PS: The network is a Win 2008 R2 domain by the way

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• Migrating from Apache2 to Lighttpd creating errors in PHP/mySQL?

  - by Jean-Philippe Murray

  Ok, I've been using basics ubuntu LAMP setups for years now, and I wanted to give lighttpd a try. My LAMP setup run in a virtual machine with scripts running just fine. So I created a new virtual machine, starting with a fresh install of ubuntu and made my setups. On this new VM, lighttpd + php works just fine. (Or at least it seems...) Problem occurs when I take the scripts from my LAMP setup and upload them to the new VM. I'm getting : Warning: mysql_real_escape_string(): Access denied for user 'www-data'@'localhost' (using password: NO) My lighttpd setup is configured as php-cgi but not my apache2 setup. Could this be the source of the problem? I think that scripts would be independent of the server configuration, so I doubt it. Also, I know that my DB connexion informations are good (as I can log in via phpmyadmin perfectly). I'm in the dark here, any pointers ? Thanks,

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• performance of vmware-machine on different computers

  - by bxshi

  I'm working on a filesystem improving project, and found a paper says the cheating on benchmark, and it gives a solution that use VMs could help others to reproduce our result. And the question is, if I have made a specific vmware virtual machine, will it runs the same at different computer and platform? For example, I have a virtual machine which is 1G RAM, 4G HD and 2G one-core CPU. Will that runs the same at a qual-core 3G CPU and a 2.4G P4? What if the computer have 4G RAM? Will vmware use some buffer mechanism to improve performance? If that's true, does it means the VM runs on a 2G RAM host will slower than on a 4G host? Hope you can help me on that, or just told me where could I find the answer.

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• Postfix configuration problem

  - by dhanya

  Can anyone help me by giving your postfix configuration file as a reference so that I can find my mistakes? I'm working on SUSE Linux Enterprise Server. My goal is to set up a mailserver in a campus network. Postfix shows it is running but no mail is sent to var/spool/mail I send mail using mail command at terminal. Here is my main.cf file, please help me finding a solution: readme_directory = /usr/share/doc/packages/postfix-doc/README_FILES inet_protocols = all biff = no mail_spool_directory = /var/mail canonical_maps = hash:/etc/postfix/canonical virtual_alias_maps = hash:/etc/postfix/virtual virtual_alias_domains = hash:/etc/postfix/virtual relocated_maps = hash:/etc/postfix/relocated transport_maps = hash:/etc/postfix/transport sender_canonical_maps = hash:/etc/postfix/sender_canonical masquerade_exceptions = root masquerade_classes = envelope_sender, header_sender, header_recipient myhostname = cmail.cetmail delay_warning_time = 1h message_strip_characters = \0 program_directory = /usr/lib/postfix inet_interfaces = all #inet_interfaces = 127.0.0.1 masquerade_domains = cetmail mydestination = cmail.cetmail, localhost.cetmail, cetmail defer_transports = mynetworks_style = subnet disable_dns_lookups = no relayhost = postfix mailbox_command = cyrus mailbox_transport = strict_8bitmime = no disable_mime_output_conversion = no smtpd_sender_restrictions = hash:/etc/postfix/access smtpd_client_restrictions = smtpd_helo_required = no smtpd_helo_restrictions = strict_rfc821_envelopes = no smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination smtp_sasl_auth_enable = no smtpd_sasl_auth_enable = no smtpd_use_tls = no smtp_use_tls = no alias_maps = hash:/etc/aliases mailbox_size_limit = 0 message_size_limit = 10240000

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• VMware Virtualisation - Convert 64bit Windows Server to 32bit VM?

  - by dannymcc

  I have just started playing around with Vmware sphere and have the hypervisor OS installed on a spare HP ProLiant DL360 G4. I have created a test virtual machine running Ubuntu which has worked well. As a test project I wanted to convert a powered on server running Windows Server 2008 64bit into a virtual machine. As soon as I ran the Vmware Go software to start the conversion it became apparent that I cannot run 64bit guest OS's on that particular server. So, is there a way of migrating 64bit to 32bit during the conversion?

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• requests are taken to the wrong directory

  - by gidireich

  Hi, I use xampp on windows 7 64, to test locally my php web application I use virtual hosts to have access to my code from different domain names. Now, I created a new version of the code and want to access both versions using different domain names. I added a new virtual host newversion.mysite.local to httpd-vhosts.conf and directed it to the directory of the new version. Also updated the windows hosts file with the line 127.0.0.4 newversion.mysite.local A strange thing happens: when browsing to newversion.mysite.local I'm being taken to the old version, which is located at a different location. How the hell this happens? Please help me with ideas Thank you Gidi

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• Performance issue when configuring non HA VM in cluster

  - by laiys

  Hi, I saw this article http://technet.microsoft.com/en-us/library/cc764243.aspx Quote taken from the link “ Important It is recommended that you not deploy virtual machines that are not highly available on your host clusters. Although you can do this by using Hyper-V (VMM does not allow it), the non-highly available virtual machines will consume resources that otherwise would be available to the HAVMs What kind of resources (CPU,memory, NIC, etc) that non HA VM will consume? Just curious as not all VM (in production) not to be in Failover Cluster and Live Migration. If i put the VM into CSV but did not make it as HA, what impact does it make since i allocate same vCPU, vNic and VMemory into the VM. (not to mention that i lost failover feature). Curious to understand more about this. Please advise. Thanks

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• Terminal services and memory limits

  - by Mark Wassell

  Is there a way in Terminal Services to set limits on memory related parameters for a process. For example working set size and, possibly, if it makes sense, total virtual memory allocation for the session? To turn the question around, we have an application which cannot allocate as much virtual memory running on a terminal server as it can when running on a desktop PC (both I would expect to have a limit of 2GB for user mode address space) and I was wondering if there is another limit for processes or users on a terminal server. Perhaps even 2GB per user rather than per process.

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• Bridging VirtualBox over OpenVPN TAC 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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• Windows 7 - can't uninstall application as admin

  - by James Atkinson

  I'm trying to uninstall Microsoft Virtual PC 2007 from my Windows 7 machine. Logged in as administrator, when I attempt to uninstall I get a messagebox stating "The system administrator has set policies to prevent this installation." Excuse me? No I haven't. Immediately following, another messagebox displays: "You do not have sufficient access to uninstall Microsoft Virtual PC 2007. Please contact your system administrator." I didn't do anything unusual when installing or setting up the software. Just normal home use computer. Any ideas on how to remove this software?

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• Windows 2000 Inaccessible Boot Device

  - by Foo_Chow

  I am working with a machine that had its motherboard die. The machine is running Windows 2000 for legacy software. After the motherboard died I used disk2vhd to perform a physical to virtual transfer. The drive data seemed to copy over to the vhd file well. However, whenever i try to boot I get a message saying Inaccessible Boot Device So far I have tried several things to fix it. fixMBR fixBoot chkdsk windows 2000 automated repair Also, I have attempted to open the registry of the vhd without any success. There is another fix that i have seen suggested that requires editing the registry. Is it possible to open a Windows 2000 hive in another OS or another copy of Windows 2000? One other thing to note is that the error appears in all of Virtual PC 2007, Hyper-V and VMWare Player. Does anyone know how to get past this?

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• VirtualBox networking problem, host XP, guest Debian

  - by Silma

  Hi, I'm trying to set up a development environment in a virtual machine on my laptop, with debian os. I have both lan and wlan available on the host machine, yet I can't connect to the internet using either. As I said the host OS is windows XP and the guest OS will be the latest Debian, we downloaded the business card net install so we need internet access from the beginning, besides we need the virtual machine to be visible on the local network (for my fellow developers). We tried host-only networking, NAT, bridging, with proxy (the local network uses a proxy to connect to the internet) and without proxy, nothing seems to work. What else can we do? Thanks a lot.

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• Can you use a USB dongle inside a VMWare ESX Virual Machine?

  - by Keith Sirmons

  Howdy, I need to know if a USB dongle that is required as a license key for a piece of software will accessible from the physical host machine. This will be a small vSphere 4 installation targeting the quick backup and system restore capabilities of VMWare, not specifically HA, so I am not to worried about the virtual machine automatically failing over to another physical machine and the dongle not being accessible. Does ESX have the capability to map a physical USB port or device to a specific Virtual Machine? I believe this is the dongle: Sentinal Superpro USB Dongle by Rainbow Technologies Thank you, Keith

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• Why does httpd handle requests for wrong hostnames in SSL mode?

  - by Manuel

  I have an SSL-enabled virtual host for my sites at example.com:10443 Listen 10443 <VirtualHost _default_:10443> ServerName example.com:10443 ServerAdmin [email protected] ErrorLog "/var/log/httpd/error_log" TransferLog "/var/log/httpd/access_log" SSLEngine on SSLProtocol all -SSLv2 SSLCipherSuite HIGH:MEDIUM:!aNULL:!MD5 SSLCertificateFile "/etc/ssl/private/example.com.crt" SSLCertificateKeyFile "/etc/ssl/private/example.com.key" SSLCertificateChainFile "/etc/ssl/private/sub.class1.server.ca.pem" SSLCACertificateFile "/etc/ssl/private/StartCom.pem" </VirtualHost> Browsing to https://example.com:10443/ works as expected. However, also browsing to https://subdomain.example.com:10443/ (with DNS set) shows me the same pages (after SSL certificate warning). I would have expected the directive ServerName example.com:10443 to reject all connection attempts to other server names. How can I tell the virtual host not to serve requests for URLs other than the top-level one?

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• Can't connect disk management to remote XP PC from local Win7/Server 2008

  - by Grez

  Scenario as follows: support technicians using Windows 7 PC's or Server 2008 terminal server are unable to connect Disk Management MMC snap in to a remote PC when the remote device is running Windows XP. "Disk management could not start Virtual Disk Service (VDS) on ". This can happen if the remote computer does not support VDS, or if a connection cannot be established because it was blocked by Windows Firewall." Connecting from another XP machine or 2003 server to the same XP machines works fine. Even connecting from XP/2003 to the Win7 or 2008 server works fine. Windows firewall disabled on all devices. I'm guessing this is something to do with the fact that XP uses logical disk manager service whereas Win7/2008 use Virtual disk manager service. But there doesn't seem to be any way to use logical disk manager service from 7/2008 to connect to XP...

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• activesync not working with forms based authentication

  - by Chad

  I have an Exchange 2003 SP2 single backend server with an SSL cert. I was having trouble getting OMA to work so I found a MS article about making a reg hack and creating a new Exchange-OMA virtual directory. I am able to connect and access content from my mailbox by using secure mail.domainname.com/oma and using my credentials. ActiveSync was not working on a Windows mobile phone or iPhone. I found another article about using Forms Based Authenication and SSL on a single Exchange server environment and the fix was to elliminate FBA and SSL for the Exchange virtual directory. That allows ActiveSync to now work. I have very few mobile users, but they are management, so I need to make ActiveSync work but I would like to get back to using SSL. http://support.microsoft.com/kb/817379 Any ideas about this setup? Thanks.

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