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• Looking for a Software to harden Windows machines

  - by MosheH

  I'm a network administrator of a small/medium network. I'm looking for a software (Free or Not) which can harden Windows Computers (XP And Win7) for the propose of hardening standalone desktop computers (not in domain network). Note: The computers are completely isolated (standalone), so i can't use active directory group policy. moreover, there are too many restriction that i need to apply, so it is not particle to set it up manual (one by one). Basically what I’m looking for is a software that can restrict and disable access for specific user accounts on the system. For Example: User john can only open one application and nothing else -- He don’t see no icon on the desktop or start menu, except for one or two applications which i want to allow. He can't Right click on the desktop, the task-bar icons are not shown, there is no folder options, etc... User marry can open a specific application and copy data to one folder on D drive. User Dan, have access to all drives but cannot install software, and so on... So far ,I've found only the following solutions, but they all seems to miss one or more feature: Desktop restriction Software 1. Faronics WINSelect The application seems to answer most of our needs except one feature which is very important to us but seems to be missing from WINSelect, which is "restriction per profile". WINSelect only allow to set up restrictions which are applied system-wide. If I have multiple user accounts on the system and want to apply different restrictions for each user, I cant. Deskman (No Restriction per user)- Same thing, no restriction per profile. Desktop Security Rx - not relevant, No Win7 Support. The only software that I've found which is offering a restriction per profile is " 1st Security Agent ". but its GUI is very complicated and not very intuitive. It's worth to mention that I'm not looking for "Internet Kiosk software" although they share some features with the one I need. All I need is a software (like http://www.faronics.com/standard/winselect/) that is offering a way to restrict Windows user interface. So IF anybody know an Hardening software which allows to set-up user restrictions on Windows systems, It will be a big, big, big help for me! Thanks to you all

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• Backup software for Windows Server 2008 R2 Enterprise with 4 virtual machines (Exchange, SQL, AD, SharePoint)

  - by MadBoy

  What are the options for backup software for: HOST - Windows Server 2008 R2 Enterprise with HyperV VIRTUAL - Windows Server 2008 R2 Enterprise with Exchange 2010 VIRTUAL - Windows Server 2008 R2 Enterprise with SQL Express / SharePoint VIRTUAL - Windows Server 2008 R2 Enterprise with Terminal Services (10 users working on it) VIRTUAL - Windows Server 2008 R2 Enterprise with AD/DNS What I'm looking at is possibility of having an offsite backup thru FTP, maybe copy to usb/esata/lan drives for easy taking backup data outside of company. What I've been looking at: - Symantec Exec Backup 2010 System Recovery has an offsite backup but I would need 5 licenses and it doesn't have granular recovery. - Symantec Exec Backup 2010 seems OK but a bit expensive - Microsoft DPM 2010 requires full SQL Standard and for each machine I would need 4 Enterprise licenses. But does it allow Offsite backup without need for additional license and server outside of company (for doing DPM backup of DPM). What other options? This is 10 people company and so the costs matter but also convenience and security. Offsite backup is requirement.

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• Remote Assistance working but not Remote Desktop - both machines are XP Pro

  - by Craig Johnston

  I have Remote Assistance working but not Remote Desktop. XP Firewall has exceptions for both Remote Assistance and Remote Desktop. Remote Desktop is allowed in System Properties - Remote. What could be the problem?

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• Problems with "Read Only" on a Samba share from Windows machines

  - by fistameeny

  We have a Ubuntu 10.04 Server that has a bunch of Samba shares on it that Windows workstations connect to. Each Windows workstation has a valid username/password to access the shares, which have restricted access governed by Samba. The problem we are experiencing is that Samba doesn't seem to be able to mimic the Windows way of handling "Read Only" attributes. Say I have two users, UserA and UserB, both a group called Staff - UserA creates a file that is readable/writeable by the group (ie. chmod rwxrwx---). If UserA then sets the "Read Only" flag, this changes the permissions to r-xr-x--- (i.e. no write for anyone). As UserB is in the same group as UserA, they should be able to remove the "Read Only" permission - however, they can't as Samba won't allow it. Is there a way to force Samba to allow users within the same group to remove the "Read Only" from a file not created by them? Edit: The Samba smb.conf is as follows: The share is defined in the smb.conf as: [global] log file = /var/log/samba/log.%m passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . obey pam restrictions = yes map to guest = bad user encrypt passwords = true passwd program = /usr/bin/passwd %u passdb backend = tdbsam dns proxy = no netbios name = ubsrv server string = ubsrv unix password sync = yes os level = 20 syslog = 0 usershare allow guests = yes panic action = /usr/share/samba/panic-action %d max log size = 1000 pam password change = yes workgroup = workgroup [Projects] valid users = @Staff writeable = yes user = @Staff create mode = 0777 path = /srv/samba/Projects directory mode = 0777 store dos attributes = Yes The folder itself looks like this: ls -l /srv/samba/ drwxrwxrwx 2 nobody Staff 4096 2010-11-04 10:09 Projects Thanks in advance, Matt

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• Account sharing among Ubuntu machines

  - by muckabout

  I'd like a simple and secure system to have allow users in our network to have their account (e.g., 'myname') work on every machine in the network (e.g., such that they could ssh to any machine and have the same userid, mounted smb share). Any suggestions?

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• What are the limitations of virtual machines?

  - by j-g-faustus

  I'm considering setting up a virtual machine running Windows, with Ubuntu 10.10 as the host OS, for those cases where I have a Windows-only program. I understand that using a VM will lose some performance, but are there other limitations to what the OS in a virtual machine can do compared to "running on bare metal"? For example: Can a VM play games, like Dragon Age Origins or Civilization V? (Possibly with poorer framerates and/or lower resolution, but does it play at all?) Can a VM rip DVD/Blue-ray using AnyDVD or similar Windows program? Can a VM handle new hardware that requires dedicated drivers, but the drivers are only available for the OS running inside the VM? (Ex. graphics card, digital camera, card reader for smart card authentication.) Is it possible to say anything about "general limitations" of VMs, or is this wholly dependent on the specific VM?

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• Problems with "Read Only" on a Samba share from Windows machines

  - by fistameeny

  Hi, We have a Ubuntu 10.04 Server that has a bunch of Samba shares on it that Windows workstations connect to. Each Windows workstation has a valid username/password to access the shares, which have restricted access governed by Samba. The problem we are experiencing is that Samba doesn't seem to be able to mimic the Windows way of handling "Read Only" attributes. Say I have two users, UserA and UserB, both a group called Staff - UserA creates a file that is readable/writeable by the group (ie. chmod rwxrwx---). If UserA then sets the "Read Only" flag, this changes the permissions to r-xr-x--- (i.e. no write for anyone). As UserB is in the same group as UserA, they should be able to remove the "Read Only" permission - however, they can't as Samba won't allow it. Is there a way to force Samba to allow users within the same group to remove the "Read Only" from a file not created by them? Edit: The Samba smb.conf is as follows: The share is defined in the smb.conf as: [global] log file = /var/log/samba/log.%m passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . obey pam restrictions = yes map to guest = bad user encrypt passwords = true passwd program = /usr/bin/passwd %u passdb backend = tdbsam dns proxy = no netbios name = ubsrv server string = ubsrv unix password sync = yes os level = 20 syslog = 0 usershare allow guests = yes panic action = /usr/share/samba/panic-action %d max log size = 1000 pam password change = yes workgroup = workgroup [Projects] valid users = @Staff writeable = yes user = @Staff create mode = 0777 path = /srv/samba/Projects directory mode = 0777 store dos attributes = Yes The folder itself looks like this: ls -l /srv/samba/ drwxrwxrwx 2 nobody Staff 4096 2010-11-04 10:09 Projects Thanks in advance, Matt

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• virtual machines

  - by André Alçada Padez

  well, i hope this doesn't get categorized as a boating question, but it really is related to programming. I have windows XP, and i am going to have to have a VM running: Windows 7 Visual Studio 2008 Sql Server 2008 IIS 7 (8 in a little while) Wamp Photoshop CS5 etc... so i was wondering what should i use to be easier to install and configure, and best performance: Virtual Box or Microsoft's Virtual Machine? Thank you Well i tried Virtual Box, it's always crashing for some reason. I think i'm going to try Virtual PC, just to stick to an all Microsoft Solution.

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• virtual machines and cryptography

  - by Unknown

  I suspect I'm a bit offtopic with the site mission, but it seems me more fitting for the question than stackoverflow i'm in preparing to create a vm with sensible data (personal use, it will be a web+mail+... appliance of sorts), i'd like to protect the data even with cryptography; the final choice have to be cross-platform for the host basically, I have to choose between guest system-level cryptography (say, dm-crypt or similar) or host level cryptography with truecrypt. do you think that the "truecrypt-volume contained virtualized disks" approach will hit the i/o performance of the vm badly (and therefore dm-crypt like approaches into the vm would be better), or is it doable? I'd like to protect all the guest data, not only my personal data, to be able to suspend the vm freely without worrying for the swap partition, etc

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• HD latency measurement using bonnie++ on different machines with different RAM size

  - by j0nes

  Hello, I have run bonnie++ v1.96 on two different servers without any additional load. One server is a "physical" Dell server with 32GB RAM, the other one is a virtual instance with 14GB RAM. I have read in the bonnie manuals that I should use two times the size of RAM in my bonnie runs, so I used 64GB on the physical machine and 28GB on the virtual machine. Now I want to compare the results, and I am wondering whether the results are comparable at all. The most interesting part is the latency part - on the physical machine, the values are about 10 times higher than on the virtual machine! Can I take these results seriously (e.g. the virtual machine HD is much much faster) or does the different RAM size tamper the results? Thanks! Jonas

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• Can't ping other machines at Linux VPN PPTP server's local lan from outside

  - by Marco Sanchez

  Before anything else, hello guys, this is the first time I ask for something here so I hope someone can give me a hand, please look at the following network diagram: --------------------------------------------------------------- VPN Server Webserver (SuSE SLES11) | | | ------- VPN LAN -------- | Router with Unique IP (With Port Forwarding rules set and VPN through enabled) | PPTP connection over Internet | Workstation (PC or Laptop with Windows) --------------------------------------------------------------- So the idea is for the workstation to connect to the PPTP Server and then be able to access a Web Application on the Webserver, right now I have the PPTP server configured and the VPN works, I can connect to the SLES11 server with no problems from the workstation and I can ping it and everything works fine but if I try to ping the Webserver from the workstation, I can't reach it, I'm making a mistake somewhere but I don't see where, please note that I'm not a network expert and thus I'd greatly appreciate some specific guidance. Here is some info related to the IPs --------------------------------------------------------------- *** SLES11 VPN Server has 2 Network cards: -- eth0 (Internal Network) IP: 192.168.210.5 MASK: 255.55.255.0 -- eth1 (External Network) IP: 192.168.1.105 MASK: 255.55.255.0 *** Webserver has 1 network card -- eth0 (Internal Network) IP: 192.168.210.221 MASK: 255.55.255.0 *** Workstation -- IP info once connection has been established to the VPN PPP adapter Test VPN Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Test VPN Connection Physical Address. . . . . . . . . : DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.210.110(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : 0.0.0.0 DNS Servers . . . . . . . . . . . : 189.209.208.181 (Defined as part of the PPTP Server options config script) 189.209.127.244 Primary WINS Server . . . . . . . : 192.168.210.220 (Defined as part of the PPTP Server options config script) NetBIOS over Tcpip. . . . . . . . : Enabled --------------------------------------------------------------- I also defined the following within IP tables: ------------------------------------------------------------- iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -A INPUT -i eth0 -p tcp --dport 1723 -j ACCEPT iptables -A INPUT -i eth0 -p gre -j ACCEPT ------------------------------------------------------------- If you need any piece of information from the PPTP server scripts please let me know, the thing is that I can actually connect to the VPN server and access its services and everything but after that I can't reach any other computer on that LAN. Any help would be greatly appreciated and thanks in advance

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• Routing protocols, distance vector vs link state

  - by Artem Barger

  I'm trying to figure out the differences(pros/cons) between two routing protocols approach and I would be great-full for any help, advice and explanation. As far I can say that it seems like distance vector is more static and more local based routing, since it doesn't know the network state whereas link state is more aware of current states therefore it seems more natural to use it over distance-vector, but I have a feeling like I'm missing something. And I would be glad to here about more aspects and different issues I have to consider while choosing one of them.

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• Free, Linux-based rescue CD for Windows machines

  - by Adam Matan

  Hi, Too often, I'm being called to help a friend who screwed a Windows machine by some creative methods. Th usual remedy is backing up the hard drive contents and reinstalling. Right now, this is done by removing the defected hard drive to my machine. I figured out that using a rescue disk running some version of Linux might ease the process. I'm looking for: NTFS access Partition tools Large variety of drivers (Network, Hard drives, etc.) GUI and some rescue wizards a great plus. Any ideas? Adam

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• Alt-Escape has different effect on different Win-XP machines

  - by Ram Rachum

  This is really weird. On my desktop computer, I often use Alt-Escape to send the active window to the background. This is really useful for window management. However, when I try pressing Alt-Escape on my new laptop, it does something similar but not identical: It sends the active window back, but not all the way to the background. i.e., instead of giving it the lowest index number, it just decrements its index number, probably by 1. Both computers have the same Windows XP Professional. Why is this? And how can I make my laptop computer send the active window to the background instead?

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• approx via inetd is not open to connection for others machines

  - by Cédric Girard

  I have an approx server to speed up Debian apt updates, on my Ubuntu 11.04 desktop PC, it had ran fine in the past, but today le 9999 port is open from localhost, but not for others PC. I have not modified inetd configuration at all. What can I check and try? inetd.conf 9999 stream tcp nowait approx /usr/sbin/approx /usr/sbin/approx approx.com # Here are some examples of remote repository mappings. # See http://www.debian.org/mirror/list for mirror sites. debian http://ftp2.fr.debian.org/debian security http://security.debian.org/debian-security volatile http://volatile.debian.org/debian-volatile # The following are the default parameter values, so there is # no need to uncomment them unless you want a different value. # See approx.conf(5) for details. $cache /espace/Dossiers/approx $max_rate unlimited $max_redirects 5 $user approx $group approx $syslog daemon $pdiffs true $offline false $max_wait 10 $verbose false $debug false I tried to allow others PC to connect with a "ALL: ALL" in hosts.allow. ufw is disabled, iptables-save is empty.

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• One EC2 source with distributed varnish machines

  - by Elad Lachmi

  I have a web site hosted in an EC2 instance (2008 r2 + iis7.5 + sql server). I put one linux box running RHEL with varnish. After some configuration trail and error, I found a configuration that works. Now I want to duplicate the varnish boxes to other availability zones, but continue to pull the pages from the original windows box. It is my understanding that I can put the varnish boxes in different zones and pull from the windows box via it's external IP. But what do I need to do in order for each user to receive content from the box physically closest to them? Is this even possible? Thank you!

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• virtual machines, dual booting and data disks on SSD

  - by stevemarvell

  This is in planning, so if I've got the strategy wrong, please let me know. There are multiple questions here, but I think they all degenerate to the same answers. The hardware is a laptop with a single SSD. I'm trying to not lose the performance of the SSD. I plan a native dual booting Windows (plus cygwin) and Linux machine which is my BYOD and represents the development environment. I keep the codebase on a shared partition (though sometimes this is an external thunderbolt SSD) which can be natively "mounted" by whichever OS is in operation. I boot into one or the other environments depending on the task in hand. Sometime I have to develop with windows tools, but generally, Linux is my preferred development environment. It would be ideal if I could VM the other OS and run either in either. I'm going to assume, because I've not found a sensible VM based solution, that I have get samba involved to share the code partition between VMs. Is this going to blow my SSD performance in the VM? The client also supplies me with a VM for the target environment, usually linux. This is not often suited to development and is used for testing only. I normally keep two copies of this, one as a sandbox and one which I deploy to using the client's preferred method. I keep these VM snapshots on the shared partition. The latter is interacted with over the network and so has no disk sharing requirements. However, it would be useful for the sandbox to be able to "mount" the code base from the natively running OS. Is this samba or nfs again, depending on the native OS? Am I missing a trick which allows this to all work smoothly with all four environments running at once without loosing the SSD performance?

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• kill sessions for other machines

  - by LipKee

  I've an admin and client site. Multiple users will view at client site at the same time. It is possible that I can force the users logout of my client site from admin site? I'm now using classic ASP and the In Proc session is used. Is there a way where I can kill all the sessions of the users and force them to logout?

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• "Error 53" with local LAN machines after VPN session on server

  - by tim11g

  I have a Windows 2000 server with a Windows 7 client that occasionally gets "error 53" when accessing the server by name (net view \\server). It still works by IP address (net view \\192.168.0.1). The server's primary IP address (as shown in "routing and remote access" as "Gigabit Ethernet" is 192.168.0.1. There is also a secondary IP address shown as "Internal" which is 192.168.0.50 The server also supports VPN. When a VPN user connects, it gets an address in the range of 192.168.0.51 to .59. Normally (when there is no error), when the local LAN client runs "ping server", it resolves to 192.168.0.1. When the Error 53 problem happens, "ping server" resolves to 192.168.0.50. This problem seems to be related to when a user connects or has recently connected to the server VPN. Is there some connection between the VPN services on the server and the DNS services on the server that could cause a local LAN client to become confused about which IP address to use for the server? Or is there a misconfiguration in the VPN or DNS?

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• How to have 2 windows machines on the same network with the same IP address

  - by Stu

  I have a custom made ADC device that is spitting out data by addressed UDP packets. I have that device plugged into a 4 port switch. I have one windows embedded standard 7 machine which is the normal recipient of that data. To be able to receive the data (Using LabVIEW) the windows network adapter IPv4 settings must have a static IP address that corresponds to the UDP packet destination. I would like to add a second windows machine (This one is just regular Win 7 Pro) to simultaneously catch the data, however with all devices connected to the switch, the Win 7 Pro machine recognizes an IP address conflict and will not take the setting for the required static IP address. (The network adaptor settings show that the correct value has been entered but ipconfig shows that it is not actually set.) Neither windows machine needs to transmit network data, they only need to be able to receive the UDP data from the ADC device. Is there any way to disable this IP address conflict detection 'feature' of windows networking?

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• Duplication of Architecture State means physically extra?

  - by Doopy Doo

  Hyper-Threading Technology makes a single physical processor appear as two logical processors; the physical execution resources are shared and the architecture state is duplicated for the two logical processors. So, this means that there are two sets of basic registers such as Next Instruction Pointer, processor registers like AX, BX, CX etc physically embedded in the micro-processor chip, OR they(arch. state) are made to look two sets by some low level duplication by software/OS.

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• configuring linux server to send traffic to local machines using local IP address

  - by gkdsp

  Two linux servers, server1 and server2, are on the same local network (they also have access to an external network). Server2 has a local IP of 192.168.0.2 and a host name of host2.mydomain.com. QUESTION 1: If an application on server1 sends traffic to server2 using a host name of host2.mydomain.com, what determines whether this traffic is routed to server2 using the local or external network? QUESTION 2: To ensure that all traffic sent from server1 to server2 always uses the local network, could I simply include in the server1 /etc/hosts file the following? 192.168.0.2 host2.mydomain.com ...the thinking being, if the servers are always on the same network there should never be a need for server2 to send traffic to server1 via the external network (that I can think of anyway). Is this done in practice, or is some other method preferred?

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• ESXi standalone host cannot power on any virtual machines

  - by Mark Henderson

  I have a standalone VMWare ESXi host on ESXi 5.1. It currently has a handful of VMs powered on, and they are running fine. If I try to power on any other VM - any VM at all - I am receiving the following message: Power On virtual machine:A general system error occurred: The virtual machine could not start I have been through everything on KB2001005 and KB1006232 and their steps are either not applicable, or don't change anything. Nothing is generated in the virtual machine's log file. Where can I troubleshoot from here?

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• High availability virtual machines

  - by Jeremy

  I've been reading a lot about high availability virtualization, either via Hyper-V or VMWare. In that context, essentially high availabliity means that the VM is hosted by a closter of physical servers (nodes), so if one of the physical servers goes down, the VM can still be served by other physical servers. So far so good, the physical cluster and the VM itself are highly available. However if the service being provided, let's say SQL server, MSDTC, or any other service, are actually being provided by the VM image and the virtualized operating system. So I imagine that there is still a point of failure at the virtual layer that isn't accounted for. Something could happen within the virtual machine itself that the physican cluster can not account for, correct? In that instance the physican failover cluster (Hyper-V) or VMWare host, can not fail over, because the issue is not with one of the servers in the physical cluster - failing over a physical node would not do any good. Does this necessitate building a virtual failover cluster on top of the physical one, or is this not necessary? Alternatively, I suppose you could skip the phsyical clustering, and just cluster at the virtual layer (Child based failover clustering), because that should still survive a physical failure. See image below showing parent based (left), child based (right) and a combination (center). Is parent based as far as you need to go, or is child based more appropriate?

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• Painless way of consolidating files across multiple machines/OSes

  - by 5arx

  Just bought a NAS. So I thought I'd get all our photos, media files and pdfs consolidated, de-duplicated, de-junked and virus-checked and stick them all on it. We have 3 laptops, one running Windows, the others OSX. We have a file server running Windows - it was the result of an earlier attempt at a networked fileserver - and a Mac Pro that is also kind of a server (previous attempts at this job have resulted in most of our stuff being on it). Also memory cards/sticks, cd backups and so on. I would be grateful if anyone could suggest a strategy or, ideally, tool(s) I could use to solve this problem. It is probably no more than one or two terabytes of data in total, but I can imagine that going through it all manually, file-by-file may well drive me insane.

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