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• port forwarding with VirtualBox

  - by Argh

  I have a virtualbox VM running ubuntu. The Ubuntu guest is running a web server which listens on port 3000 (http://127.0.0.1:3000) The host machine is windows vista. I have configured port forwarding using VBoxManage. If I query the config using VboxManage getextradata "MyMachine", I get Key: GUI/AutoresizeGuest, Value: on Key: GUI/Fullscreen, Value: off Key: GUI/LastCloseAction, Value: shutdown Key: GUI/LastWindowPostion, Value: 9,34,640,529,max Key: GUI/MiniToolBarAlignment, Value: bottom Key: GUI/MiniToolBarAutoHide, Value: off Key: GUI/SaveMountedAtRuntime, Value: yes Key: GUI/Seamless, Value: off Key: GUI/ShowMiniToolBar, Value: yes Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/GuestPort, Value: 3000 Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/HostPort, Value: 3000 Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/Protocol, Value: TCP This looks like it should work... However when I try to access the web server from the host machine (windows box) I dont get a response. I ran a netstat on the windows box and nothing appears to be listening on port 3000 which explains why forwrding isnt working. Note that I have already tested with my firewall switched off... The version of VirtualBox I am using is 3.1.4 Any ideas?

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• missing files after reassemble of RAID-5

  - by Kris_R

  I had to open my file-server's housing on Sunday to replace a faulty fan. What I didn't see was that one of the sata-cables was not properly connected. The 1st thing I did after a reboot was a check of the RAID status and it showed immediately that one drive is missing. Till this moment the device was not used (however it was mounted, so I'm not 100% sure that system did nothing). I stopped md0 and re-plugged the cable: mdadm --stop /dev/md0 poweroff After another reboot I checked the removed drive: mdadm --examine /dev/sdd1 ... Checksum : 3276bc1d - correct Events : 315782 Layout : left-symmetric Chunk Size : 32K Number Major Minor RaidDevice State this 0 8 49 0 active sync /dev/sdd1 0 0 8 49 0 active sync /dev/sdd1 1 1 8 65 1 active sync /dev/sde1 2 2 8 33 2 active sync /dev/sdc1 3 3 8 17 3 active sync /dev/sdb1 I was a bit surprised that it was shown as active (even if earlier mdadm said, that this device was removed from array) and its checksum was OK. I recreated RAID with: mdadm --assemble /dev/md0 --scan The command mdadm --detail /dev/md0 showed that all drives were running and system was in "clean" state. I mounted the device md0 and then came hic-cup. I wanted to work on one of the last files that I had been using before all the situation and it was not there. In another place I missed actually all files from the directory where I was working. As far as I can see most of the files that are older than a few days are intact but some newer ones are missing. Now the big question: what would be your advice? Is there a way to get these data? I thought about removing the drive that was earlier labeled by mdadm and rebuild array with another empty HDD. I've found that after re-assemble the "broken" drive has another label (changed from sdd to sdb). Can this have influence on rebuilt process? If yes, how to reassemble the array properly? I'm sure the SATA-cables are connected still in the same order to the controller. p.s. Please no advises like "restore from backup". I'm doing back-ups on Sunday's night and this happened in the late afternoon, so backup is not really options for me. p.s.s. I asked this question on Unix&Linux but no answer came up during last two days. I'm getting quite anxious. Sorry for duplicating if any of you reading the other forum.

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• HP Storageworks 448 tape drive input/output error with Ubuntu

  - by Dan D

  I'm trying to set a backup to tape of a machine using flexbackup. However any attempt to write to the tape drive (via either flexbackup or just tar) results in "/dev/st0: Input/output error" The machine seems to recognise the drive (HP Storageworks Ultrium 448) and that there's a tape in it and "mt status" seems to work... "mt -f /dev/st0 rewind" or "erase" throw no errors... root@stor001:/# mt status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 0 bytes. Density code 0x42 (LTO-2). Soft error count since last status=0 General status bits on (41010000): BOT ONLINE IM_REP_EN root@stor001:/# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: DVDRAM GSA-4084N Rev: KS02 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 03 Lun: 00 Vendor: HP Model: Ultrium 2-SCSI Rev: S65D Type: Sequential-Access ANSI SCSI revision: 03 "tell" does however root@stor001:/# mt -f /dev/st0 tell /dev/st0: Input/output error Based on a forum post I found, I tried: root@stor001:/# dd if=/dev/zero of=/dev/nst0 bs=1024 count=10 10+0 records in 10+0 records out 10240 bytes (10 kB) copied, 5.0815 s, 2.0 kB/s which gave the person on the forum an error but seems to work for me. If anyone has any suggestions, I'm all ears...

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• Routing multiple static IPs from ISP at the cable modem?

  - by Jakobud

  I'm taking over IT responsibilities for a previous IT guy. We have a 50mb cable modem connection from Comcast along with 5 static IP addresses: XXX.XXX.XXX.180 XXX.XXX.XXX.181 XXX.XXX.XXX.182 XXX.XXX.XXX.183 XXX.XXX.XXX.184 We are in the process of replacing our firewall machine. Currently the firewall box is the only thing connected to the cable modem. However the cable modem has multiple ethernet ports on it, similarly to a router. I have assembled a new firewall machine and its time to start testing and configuring it. So that means that I also need it plugged into the cable modem (remember it has multiple ethernet ports on it). So now with multiple computer plugged into the cable modem, how does the cable modem know where to route the traffic? If some request on the internet is made to XXX.XXX.XXX.181, which goes to our cable modem, how does the cable modem know which connected computer that traffic is supposed to be sent? Looking at the web interface for the cable modem, there doesn't seem to be anything special setup on it with regards to routing or NATing IP addresses. Is that because when there is only one computer connected to the modem, all traffic is sent to it by default? Now that I am going to (temporarily) have multiple computers plugged into the cable modem, do I need to specify routing or NAT rules on the modem itself? I am going to speak to Comcast about this next, but I figured I'd ask here first just so I can get a better grasp on how this type of thing generally plays out.

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• How do I configure the number of worker threads used by SqlServer 2005 Agent

  - by Decker

  How can I increase the limit of worker threads from the default 10 for SQL Server 2005 SqlAgent? I have 9 jobs that run almost continuously and that leaves only one available thread for the rest of the scheduled jobs. Oftentimes, when no thread is available, I will see the jobs in "Waiting for worker thread" state. I'd like to increase the number to about 12 (which should do the trick for me). Any idea where this is set?

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• How to configure multiple VLAN's on a lacp link aggregation on openindiana(oi_151a7)?

  - by reco

  i have 4 links aggregated. $ dladm show-link LINK CLASS MTU STATE BRIDGE OVER igb0 phys 1500 up -- -- igb1 phys 1500 up -- -- igb2 phys 1500 up -- -- igb3 phys 1500 up -- -- aggr0 aggr 1500 up -- igb0 igb1 igb2 igb3 i managed to create one VLAN on the aggr0 link: $ dladm show-vlan LINK VID OVER FLAGS vlan1 9 aggr0 ----- if i try to add more i get the following error: $ dladm create-vlan -v 3 -l aggr0 vlan2 dladm: create operation failed: invalid argument

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• Can't remotely connect through SQL Server Management Studio

  - by FAtBalloon

  I have setup a SQL Server 2008 Express instance on a dedicated Windows 2008 Server hosted by 1and1.com. I cannot connect remotely to the server through management studio. I have taken the following steps below and am beyond any further ideas. I have researched the site and cannot figure anything else out so please forgive me if I missed something obvious, but I'm going crazy. Here's the lowdown. The SQL Server instance is running and works perfectly when working locally. In SQL Server Management Studio, I have checked the box "Allow Remote Connections to this Server" I have removed any external hardware firewall settings from the 1and1 admin panel Windows firewall on the server has been disabled, but just for kicks I added an inbound rule that allows for all connections on port 1433. In SQL Native Client configuration, TCP/IP is enabled. I also made sure the "IP1" with the server's IP address had a 0 for dynamic port, but I deleted it and added 1433 in the regular TCP Port field. I also set the "IPALL" TCP Port to 1433. In SQL Native Client configuration, SQL Server Browser is also running and I also tried adding an ALIAS in the I restarted SQL server after I set this value. Doing a "netstat -ano" on the server machine returns a TCP 0.0.0.0:1433 LISTENING UDP 0.0.0.0:1434 LISTENING I do a port scan from my local computer and it says that the port is FILTERED instead of LISTENING. I also tried to connect from Management studio on my local machine and it is throwing a connection error. Tried the following server names with SQL Server and Windows Authentication marked in the database security. ipaddress\SQLEXPRESS,1433 ipaddress\SQLEXPRESS ipaddress ipaddress,1433 tcp:ipaddress\SQLEXPRESS tcp:ipaddress\SQLEXPRESS,1433

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• Persistent static route stops working after VPN drops and reconnects

  - by user76157

  I've got a VPN between two networks, one home and one office (A and B). Their subnets are: (A) 192.168.1.0 and (B) 192.168.0.0 The two networks have identical ADSL routers. Unfortunately these can only do dial-out VPN. So I've got a Windows 2008 server on Network B acting as a VPN server (ServerB). Network A's router (RouterA) passes through Network B's router and connects via PPTP to ServerB. RouterA is assigned the static IP 192.168.0.40 on Network B. There's a persistent static route on ServerB telling it to use 0.40 for all requests to Network A's subnet, 192.168.1.0. (route -p add 192.168.1.0 mask 255.255.255.0 192.168.0.40). This enables ServerB to ping all machines on A (and those machines to ping ServerB). The VPN connection occasionally drops (I'm not sure why - it's set to remain always on and seems to drop randomly). This wouldn't be too much of a problem, as it reconnects automatically and quickly, except that when it does reconnect, the static route on ServerB no longer works. Route print (on ServerB) shows that the persistent static route still exists. However a tracert to a machine on Network A doesn't use the static route; it tries instead to use ServerB's default gateway (which is RouterB), and fails to find the machine. Deleting and re-adding the static route fixes the problem - a tracert uses the static route. At the moment, a batch file to delete and re-add the static route is scheduled to run every day. But this is clearly far from an ideal solution! I hope that's not too confusing. Any help would be very much appreciated.

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• "A disk read error occurred" when booting XP disk image in VirtualBox

  - by intuited

  I'm trying to boot an XP installation cloned into VirtualBox from a real drive. I'm getting the message A disk read error occurred Press Ctrl+Alt+Del to restart whenever* I try to boot the machine. * This is not strictly true: with AMD-V enabled, the boot process appears to not make it this far and instead hangs at a black screen with cursor. I created the VirtualBox image from the original drive using the following method: $ sudo ddrescue -n /dev/sdd sdd.img logfile # completed without errors $ VBoxManage convertfromraw sdd.img disk.vdi The original disk (and the image) contain a single NTFS partition with XP installed on it. The owner of the drive indicates that it did boot okay the last time the system made it that far. The (Pentium 4) system has a broken (enormous) heat sink, so at some point it failed to boot because it would quickly overheat and shut down. If I boot the VM from a live cd, I am able to mount its /dev/sda1 without any problems. I ran ntfsfix and didn't have any luck. I've read through the instructions on doing this. I didn't really follow them. For example, I didn't run MergeIDE before imaging because the machine was not bootable. However, the symptom of that problem seems to be quite different. The emitted message is contained in the volume boot record of the XP partition, which leads me to suspect that this is a problem with the core operating system bootstrap procedure, and not related to anything in the registry. I don't have an XP boot CD.

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• In Windows 7, why can't I use perfmon against a remote server?

  - by SomeGuy

  I am on Windows 7 and trying to run perfmon against Windows 2003 and Windows 2008 servers. I am running into the same issue with all remote machines. When creating a data collector set, I specify a domain account that is in the administrators group on the remote machines (and "Performance Log Users" and "Performance Monitor Users" to be safe). On the "Available Counters" screen, When I type in a remote computer name, PerfMon locks up for a good 2-3 minutes before I can add any counters. I can then save the collector set. However, when I save it, the go/stop buttons are disabled if I click the set in the left panel, and missing if I click the Data collector set itself in the right panel. See the screens below. I can run data collector sets against my local machine with no problem. I am opening perfmon with my local account in both scenarios. I also have Remote Registry Service started on each remote machine. What is going on?

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• Linksys/Cisco Small Business SRW-Series (ie SRW248G4) - Overcoming the Limitations

  - by Warren P

  We just purchased a Cisco/Linksys SRW 248G4 switch to try it out. We have always had unmanaged switches before, and this is our first "somewhat managed" switch. So far the major limitations are: Only Internet Explorer 6 (manual says IE 5.5!) works for the web interface SSH exists but is not practically useable because the only key length that is supported is no longer even used by most modern SSH installs. (I get the error "RSA modulus too small" in openssh 4.x/5.x) This is with the latest firmware revision, I believe, although Cisco's website does not actually tell you what version you're downloading. All in all, I think, they must be trying to tell me that if I want a good-quality switch, I shouldn't buy these SRWs and should buy a Dell or an HP ProCurve, or save up my pennies, and buy a Catalyst. The question here, then, at long last: Has anyone gotten the web-browser to work via some IE 7 or IE 8 compatibility mode settings or used another browser (Opera? KDE/Safari/WebKit?) and spoofed IE6? Is there any way to get the SSH key length upgraded? I'm guessing a 0% chance of a yes on that last one. I found an XP machine, used telnet (via PuttyTel.exe) and IE6 to set this up, and I doubt we'll have to touch it again. Which is fine with us. But it would be nice if I could administer this thing from either (a) a linux box, or (b) my primary desktop which is windows 7. It looks like XPMode with IE6 on the virtual XP machine may be my only way to administer this type of switch via the web.

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• Windows Server 2008 R2 SP1 Drivers Missing Would Not Install?

  - by bleepzter

  I am building my dev machine with WS2008R2SP1. I consider Windows Server as the best development environment for C# since I tend to focus on server-centric (integration) applications. The desktop flavor of Windows (7) doesn't play nicely with things like Commerce Server or BizTalk... so I to like stick to the environment I develop for. Previously I used to develop inside of VM's but I've found that it is super inefficient and tends to take a toll on the laptops. (I've gone through two of them in 6 months). Problem is that I multiple devices that do not want to be recognized by Windows: My machine is Dell Precision M4500: Intel Core i7-Q740, 1TB HDD, 8GB RAM, Dell re-branded Broadcom DW1501 802x11n Half-Mini Card, Dell re-branded Broadcom DW375 Bluetooh Module, Intel 82577LM Gigabit Network connection NVidia Quadro FX1800 Graphics The devices in question are the Dell rebranded broadcom network and bluetooth adapters: Broadcom USH: USB\VID_0A5C&PID_5800&REV_0101&MI_00 USB\VID_0A5C&PID_5800&MI_00 DW375 Bluetooth Module USB\VID_413C&PID_8187&REV_0517 USB\VID_413C&PID_8187 When I ran the broadcom installers I get "Operating System not supported" which I think is a big oversight on Broadcom's part. Why check for system version string? UGHGHGH Moreover if I try to manually force the driver in windows... I get an error: Driver Management concluded the process to install driver FileRepository\btwampsecfl.inf_amd64_neutral_d8fc2b85d035ed47\btwampsecfl.inf for Device Instance ID USB\VID_0A5C&PID_5800&MI_00\7&66DE6C9&0&0000 with the following status: 0xe0000217. '- or - Driver Management concluded the process to install driver FileRepository\btwampfl.inf_amd64_neutral_d4c4acf036c61299\btwampfl.inf for Device Instance ID USB\VID_413C&PID_8187\90004EEEF5A6 with the following status: 0xe0000217. I googled the 0xe0000217 error code and it says Bad service install section in the driver inf file... Any ideas on how to fix this? I also tried the post by BetaIQ on MSDN Forum, unfortunately the links to the driver package included in the post were dead :( PS. On a side note I also do mobile development for Android, iOS, and Windows Phone, and BB. Having the bluetooth is quite useful with mobile devices.

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• Ensuring a repeatable directory ordering in linux

  - by Paul Biggar

  I run a hosted continuous integration company, and we run our customers' code on Linux. Each time we run the code, we run it in a separate virtual machine. A frequent problem that arises is that a customer's tests will sometimes fail because of the directory ordering of their code checked out on the VM. Let me go into more detail. On OSX, the HFS+ file system ensures that directories are always traversed in the same order. Programmers who use OSX assume that if it works on their machine, it must work everywhere. But it often doesn't work on Linux, because linux file systems do not offer ordering guarantees when traversing directories. As an example, consider there are 2 files, a.rb, b.rb. a.rb defines MyObject, and b.rb uses MyObject. If a.rb is loaded first, everything will work. If b.rb is loaded first, it will try to access an undefined variable MyObject, and fail. But worse than this, is that it doesn't always just fail. Because the file system ordering on Linux is not ordered, it will be a different order on different machines. This is worse because sometimes the tests pass, and sometimes they fail. This is the worst possible result. So my question is, is there a way to make file system ordering repeatable. Some flag to ext4 perhaps, that says it will always traverse directories in some order? Or maybe a different file system that has this guarantee?

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• AWS lighttpd: Sending a copy of requests to test.

  - by Martin

  I have a load balanced service on AWS. So the ELB evenly distributes the load across my servers. Each server is running lighttpd that does logging and forwards the requests to my service (on the same machine). I have written a new version of the service. It is installed and running on an EC2 machine test1 (basically a mirror of our current server but the new service running instead of the original) and I have done some preliminary tests that look good. But what I would like to do is mirror a fraction of incoming traffic to the new version of the service so I can do some comparisons between an original version and the new version based on real traffic. Thus I was thinking I could modify one box behind the ELB to duplicate its traffic to the test1. I was thinking I could modify the configuration of lighttpd so that each request is mirrored/duplicated. i.e. the original service keeps responding as before but a mirror request is sent to test1 but the reply is just dropped). Unfortunately I have not been able to work this out. Any ideas on how I could mirror the requests from one box to itself and test1. Or any other ideas for testing.

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• Windows 7 disk backup and clone for deployment to multiple systems

  - by gregmac

  I'm in the process of deploying some new PCs (there's only 8), all identical hardware. What I'd like to do is install Windows 7 (64bit), join to domain etc, install a bunch of other software, and then clone that drive to multiple other machines. I'd also like to be able to use it as a backup image, so the machine can be restored back to that image at some future date. I understand this involves at least sysprep, but I am confused after reading some tutorials that talk about using Windows Automated Installation Kit, or hacks with the registry and custom-build batch files. This process seems overly complex to me: I did something similar 10+ years ago, and and don't remember it being this bad. Surely things have improved in a decade? There's also some products that involve having network servers running deployment software, network boot, etc etc.. this is way more than I want to set up. My systems are all identical hardware. Is there a simplified way to clone PCs? Preferably (since I'm a lazy developer, and not an IT admin) I'd like to find some off-the-shelf product that I can run after I get the machine setup, that will spit out a bootable DVD I can run on all the other systems, which will boot up, ask for a computer name, join it to the domain, and that's it. Does such as product exist?

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• Can't connect to a Hyper-V VM from anywhere but the host OS

  - by Elbelcho

  I have an unusual situation on hand where I'm able to connect to a Hyper-V guest VM from the HOST, but not from anywhere but the host. The VM is running WIn2k8R2 and has IIS installed and Remote Desktop enabled. If I browse to the IP from the host OS, the IIS7 page displays. I can also RDP into the guest OS from the host as well as ping. From OFF the host, RDP, web and ping all fail. If I completely shut off the guest VM's firewall, ping will then start to respond, but all RDP and port 80 still don't. The physical host machine has 2 nics installed, but only one is plugged in. The one plugged in has a static IP. I have one Hyper-V virtual network and it's set to external. The guest VM has one NIC with a different static IP than the host, but both are on the same subnet. The host machine is joined to the domain, the guest VM is not. Any sugestions? Thanks so much for any help you may be able to provide!

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• Deploying a Git server in a AWS linux instance

  - by Leroux

  I'm making a git server on my linux instance in AWS. I tried doing it using these instructions but in the end I always get stuck with a "Permission denied (publickey)" message. So here is my detailed steps, the client is my windows machine running mysysgit and the server is the AWS ubuntu instance : 1) I created user Git with a simple password. 2) Created the ssh directory in ~/.ssh 3) On the client I created ssh keys using ssh-keygen -t rsa -b 1024, they got dropped in my /Users/[Name]/.ssh directory, id_rsa and id_rsa.pub key pair was created. 4) Using notepad I copy pasted the text into newly created files on the server in the ~/.ssh directory of my Git user. ~/.ssh/id_rsa and **~/.ssh/id_rsa.pub** were copied. 5) On the server I made the authorized_hosts file using "cat id_rsa.pub authorized_hosts" (while inside the .ssh directory) 6) Now to test it, on my client machine I did ssh -v git@[ip.address] 7) Result : debug1: Host 'ip.address' is known and matches the RSA host key. debug1: Found key in /c/Users/[Name]/.ssh/known_hosts:1 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Trying private key: /c/Users/[Name]/.ssh/identity debug1: Trying private key: /c/Users/[Name]/.ssh/id_rsa debug1: Offering public key: /c/Users/[Name]/.ssh/id_dsa debug1: Authentications that can continue: publickey debug1: No more authentication methods to try. Permission denied (publickey). I would appreciate any insight anyone can give me.

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• Trouble with local id / remote id configuration of VPN

  - by Lynn Owens

  I have a NetGear UTM firewall and a Windows machine running NetGear's VPN client. The Windows machine I can put on the UTM network and take off of it. When I am cabled into the local (internal) the following configuration works: UTM: Local Id: Local Wan IP: (The UTM's WAN IP address) Remote Id: User FQDN: utm_remote1.com Client: Local Id: DNS: utm_remote1.com Remote Id: (The UTM's WAN IP address) Gateway authentication: preshared key Policy remote endpoint: FQDN: utm_remote1.com But when I'm off the UTM's internal local network and simply coming in from the internet, this does not work. It simply repeats SEND phase 1 before giving up. Since I know that the UTM WAN IP is accessible from both inside and outside the network, I figured the problem was with the Client local id. So, I tried the following: UTM: Local Id: Local Wan IP: (The UTM's WAN IP address) Remote Id: (A DN of a self-signed certificate I created for the client and uploaded into the UTM certificates) Client: Local Id: (The DN of the aforementioned self signed cert) Remote Id: (The UTM's WAN IP address) Gateway authentication: (the aforementioned self signed cert) Policy remote end point: ... er, ... my choices are IP and FQDN.... Not sure what to put here No matter what I've tried, it just keeps repeating the SEND phase 1. Any ideas?

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• Error when installing SQL Server 2008 R2 Express

  - by dretzlaff17

  When installing SQL Server 2008 R2 from the command line prompt, I am getting the following error that is recorded in the Summary file. Scenario specific rules: Rules report file: C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20101217_131444\SystemConfigurationCheck_Report.htm Exception summary: The following is an exception stack listing the exceptions in outermost to innermost order Inner exceptions are being indented Exception type: System.ArgumentNullException Message: Value cannot be null. Parameter name: path2 Data: DisableWatson = true Stack: at System.IO.Path.Combine(String path1, String path2) at Microsoft.SqlServer.Configuration.SqlEngine.SqlEngineSetupPublic.RecomputeDirectoryPaths() at Microsoft.SqlServer.Configuration.SqlEngine.SqlEngineSetupPublic.Calculate() at Microsoft.SqlServer.Configuration.SetupExtension.FinalCalculateSettingsAction.ExecuteAction(String actionId) at Microsoft.SqlServer.Chainer.Infrastructure.Action.Execute(String actionId, TextWriter errorStream) at Microsoft.SqlServer.Setup.Chainer.Workflow.ActionInvocation.ExecuteActionHelper(TextWriter statusStream, ISequencedAction actionToRun) Has anyone seen this. Here is what I am sending for the command line parameters. /q /ACTION=Install /FEATURES=SQLEngine /SECURITYMODE=SQL /SAPWD="myPassword" /BROWSERSVCSTARTUPTYPE=Automatic /SQLSVCSTARTUPTYPE=Automatic /SQLSVCACCOUNT="NT AUTHORITY\Network Service" /SQLSYSADMINACCOUNTS="BUILTIN\ADMINISTRATORS" /AGTSVCACCOUNT="NT AUTHORITY\Network Service" /IACCEPTSQLSERVERLICENSETERMS

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• What used the linux memory? Low cache, low buffer, not a VM

  - by Jason

  First of all, yes, I have read LinuxAteMyRAM, which doesn't explain my situation. # free -tm total used free shared buffers cached Mem: 48149 43948 4200 0 4 75 -/+ buffers/cache: 43868 4280 Swap: 38287 0 38287 Total: 86436 43948 42488 # As shown above, the -/+ buffers/cache: line shows indicates the used memory rate is very high. However, from output of top, I don't see any process used more than 100MB of memory. So, what used the memory? PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 28078 root 18 0 327m 92m 10m S 0 0.2 0:25.06 java 31416 root 16 0 250m 28m 20m S 0 0.1 25:54.59 ResourceMonitor 21598 root -98 0 26552 25m 8316 S 0 0.1 80:49.54 had 24580 root 16 0 24152 10m 760 S 0 0.0 1:25.87 rsyncd 4956 root 16 0 62588 10m 3132 S 0 0.0 12:36.54 vxconfigd 26703 root 16 0 139m 7120 2900 S 1 0.0 4359:39 hrmonitor 21873 root 15 0 18764 4684 2152 S 0 0.0 30:07.56 MountAgent 21883 root 15 0 13736 4280 2172 S 0 0.0 25:25.09 SybaseAgent 21878 root 15 0 18548 4172 2000 S 0 0.0 52:33.46 NICAgent 21887 root 15 0 12660 4056 2168 S 0 0.0 25:07.80 SybaseBkAgent 17798 root 25 0 10652 4048 1160 S 0 0.0 0:00.04 vxconfigbackupd This is an x86_64 machine (not a common-brand server) running x84_64 Linux, not a container in a virtual machine. Kernel (uname -a): Linux 2.6.16.60-0.99.1-smp #1 SMP Fri Oct 12 14:24:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Content of /proc/meminfo: MemTotal: 49304856 kB MemFree: 4066708 kB Buffers: 35688 kB Cached: 132588 kB SwapCached: 0 kB Active: 26536644 kB Inactive: 17296272 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 49304856 kB LowFree: 4066708 kB SwapTotal: 39206624 kB SwapFree: 39206528 kB Dirty: 200 kB Writeback: 0 kB AnonPages: 249592 kB Mapped: 52712 kB Slab: 1049464 kB CommitLimit: 63859052 kB Committed_AS: 659384 kB PageTables: 3412 kB VmallocTotal: 34359738367 kB VmallocUsed: 478420 kB VmallocChunk: 34359259695 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 2048 kB df reports no large consumption of memory from tmpfs filesystems.

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• How to render remote assistance to a person using Live Messenger?

  - by Cheeso

  There is a feature within Windows Live Messenger v9 that allows a person to ask for remote assistance. BBut as I understand it, this works only if the router is UPnP enabled on both ends. Today I tried this with a friend during an active chat session, and nothing happened. I suspect a router problem. as I am remote, I cannot configure the router for them. What's a good way to render remote assistance? Here's the scenario: it will be based on invitation only (it's not a remote desktop or "logmein" situation). It's a younger person, a computer novice, on the other end of the wire. I'll be assiting with their use of applications on the PC. I'd l ike to be able to SEE the screen, and also use the mouse and keyboard. I have used Ultra-Vnc on the target machine and vncviewer on my machine, on a LAN. It works well. But I don't think I can use that, because it's my kids' computer in my ex-wife's place, and I don't want her to accuse me of spying on her computer. That's why I need it to be invitation only. Advice please. Is there an easy way for me to set up Remote Assistance? IS there some other tool I can use?

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• Forwarding udp ports iptables packets "lost"?

  - by Dindihi

  I have a Linux router (Debian 6.x) where i forward some ports to internal services. Some tcp ports (like 80, 22...) are OK. I have one Application listening on port 54277udp. No return is coming from this app, i only get Data on this port. Router: cat /proc/sys/net/ipv4/conf/all/rp_filter = 1 cat /proc/sys/net/ipv4/conf/eth0/forwarding = 1 cat /proc/sys/net/ipv4/conf/ppp0/forwarding = 1 $IPTABLES -t nat -I PREROUTING -p udp -i ppp0 --dport 54277 -j DNAT --to-destination $SRV_IP:54277 $IPTABLES -I FORWARD -p udp -d $SRV_IP --dport 54277 -j ACCEPT Also MASQUERADING internal traffic to ppp0(internet) is active & working. Default Policy INPUT&OUTPUT&FORWARD is DROP What is strange, when i do: tcpdump -p -vvvv -i ppp0 port 54277 I get a lot of traffic: 18:35:43.646133 IP (tos 0x0, ttl 57, id 0, offset 0, flags [DF], proto UDP (17), length 57) source.ip > own.external.ip..54277: [udp sum ok] UDP, length 29 18:35:43.652301 IP (tos 0x0, ttl 57, id 0, offset 0, flags [DF], proto UDP (17), length 57) source.ip > own.external.ip..54277: [udp sum ok] UDP, length 29 18:35:43.653324 IP (tos 0x0, ttl 57, id 0, offset 0, flags [DF], proto UDP (17), length 57) source.ip > own.external.ip..54277: [udp sum ok] UDP, length 29 18:35:43.655795 IP (tos 0x0, ttl 57, id 0, offset 0, flags [DF], proto UDP (17), length 57) source.ip > own.external.ip..54277: [udp sum ok] UDP, length 29 18:35:43.656727 IP (tos 0x0, ttl 57, id 0, offset 0, flags [DF], proto UDP (17), length 57) source.ip > own.external.ip..54277: [udp sum ok] UDP, length 29 18:35:43.659719 IP (tos 0x0, ttl 57, id 0, offset 0, flags [DF], proto UDP (17), length 57) source.ip > own.external.ip..54277: [udp sum ok] UDP, length 29 tcpdump -p -i eth0 port 54277 (on the same machine, the router) i get much less traffic. also on the destination $SRV_IP there are only a few packets coming in, but not all. INTERNAL SERVER: 19:15:30.039663 IP source.ip.52394 > 192.168.215.4.54277: UDP, length 16 19:15:30.276112 IP source.ip.52394 > 192.168.215.4.54277: UDP, length 16 19:15:30.726048 IP source.ip.52394 > 192.168.215.4.54277: UDP, length 16 So some udp ports are "ignored/dropped" ? Any idea what could be wrong? Edit: This is strange: The Forward rule has data packets, but the PREROUTING rule has 0 packets... iptables -nvL -t filter |grep 54277 Chain FORWARD (policy DROP 0 packets, 0 bytes) 168 8401 ACCEPT udp -- * * 0.0.0.0/0 192.168.215.4 state NEW,RELATED,ESTABLISHED udp dpt:54277 iptables -nvL -t nat |grep 54277 Chain PREROUTING (policy ACCEPT 405 packets, 24360 bytes) 0 0 DNAT udp -- ppp0 * 0.0.0.0/0 my.external.ip udp dpt:54277 state NEW,RELATED,ESTABLISHED to:192.168.215.4

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• pci-express ssd running an OS

  - by tom

  Hi, Simple question really, is it possible to install an OS such as windows or ubuntu on a PCI-Express SSD (solid state drive)? And if so is it as straight forward as selecting that drive on install? Thanks Tom

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• Combining two operators in Evil-mode Emacs

  - by Dyslexic Tangent

  In vim I've remapped > and < when in visual mode to >gv and <gv respectively, like so: vnoremap > >gv vnoremap < <gv Since my target for this question are folks experienced with emacs and not vim, what > and < do is indent/dedent visually selected text. What gv does is reselect the previously selected text. These maps cause > and < to indent/dedent and then reselect the previously selected text. I'm trying out emacs with evil-mode and I'd like to do the same, but I'm having some difficulty figuring out how, exactly, to accomplish the automatic reselection. It looks like I need to somehow call evil-shift-right and evil-visual-restore sequentially, but I don't know how to create a map that will do both, so I tried creating my own function which would call both sequentially and map that instead, but it didn't work, possibly due to the fact that both of them are defined, not as functions with defun but instead as operators with evil-define-operator. I tried creating my own operators: (evil-define-operator shift-left-reselect (beg end) (evil-shift-left beg end) (evil-visual-restore)) (evil-define-operator shift-right-reselect (beg end) (evil-shift-right beg end) (evil-visual-restore)) but that doesn't restore visual as expected. A stab in the dark gave me this: (evil-define-operator shift-left-reselect (beg end) (evil-shift-left beg end) ('evil-visual-restore)) (evil-define-operator shift-right-reselect (beg end) (evil-shift-right beg end) ('evil-visual-restore)) but that selects one additional line whenever it is supposed to reselect. For now I've been using the following, which only has the problem where it reselects an additional line in the < operator. (evil-define-operator shift-right-reselect (beg end) (evil-shift-right beg end) (evil-visual-make-selection beg end)) (evil-define-operator shift-left-reselect (beg end) (evil-shift-left beg end) (evil-visual-make-selection beg end)) and I've mapped them: (define-key evil-visual-state-map ">" 'shift-right-reselect) (define-key evil-visual-state-map "<" 'shift-left-reselect) any help / pointers / tips would be greatly appreciated. Thanks in advance.

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• VirtualBox Mac - Is it possible re-map a key for a VM

  - by Erin Drummond

  I am running Windows inside VirtualBox on Mac OSX. However, I am frequently copying and pasting/undoing etc using keyboard shortcuts. Because Mac is dumb and tries to be different, common shortcuts such as ctrl+c and ctrl+v are cmd+c and cmd+v on Mac. This creates a problem because I keep trying to use mac-style shortcuts in the VM, or windows-style shortcuts on the Mac (my workflow is, do ASP.NET dev in the VM, but use the Mac hosts browser). What I would like to be able to do is make VirtualBox send "Command" key presses as "Ctrl" to the VM, so that I dont have to keep remembering which environment I am in and thinking about which key combination I need to use. Is this possible?

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