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  • How can I create a simple Exchange 2010 backup solution?

    - by bduncanj
    I'm sure this question's been asked a dozen times in one form or another, however after much searching, there doesn't appear to be an obvious simple recovery solution for a single Exchange box. We're using Exchange 2010 on a single server, the server hosts the AD and nothing else on the network uses the AD. The intent is to run this server as you would an externally hosted Exchange server - access only via HTTP (RPC mode or OWA) - all other ports blocked. I've a daily backup running, using Windows Server 2008 volume shadow service to backup the Exchange data to an external hard disk. My question is, how do I perform a bare metal recovery of this server? 1) Do I need to be explicitly including the active directory information in this nightly backup, or will it be there by virtue of the fact that this system is the primary AD server and the Windows backup service knows this? 2) I understand I can re-install Server 2008 onto my new hardware (in the case of hardware failure) and then run Exchange 2010 setup.exe with a /recover argument, referencing the backup volume. 3) It is acceptable to have some downtime during this recovery process. But is there anything else I should be aware of? Thanks! Duncan

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  • How do you get AWS VPC EC2 instances to be able to see the AWS APIs?

    - by Peter Mounce
    We're spinning up infrastructure inside of an AWS VPC via CloudFormation. We're using auto-scaling groups to bring up VPC-EC2 instances (so, we don't bring up instances directly; ASGs manage that). Inside of a PVC, EC2 instances only have a private IP; they cannot see the outside world without further work. When these instances spin up, we have some bootstrap tasks that require talking to the various AWS APIs. We also have some ongoing tasks that require AWS API traffic. How are you tackling this apparent chicken-egg problem? We've read about: NAT instances - but don't like this so much because it's another layer to our stack. assigning elastic-IPs to each VPC instance that needs to talk - but a) they all do, and b) since we're using ASGs, we don't know which instances to assign EIPs to at provision-time, and c) we'd need to set up something to monitor those ASGs and assign EIPs when instances are terminated and replaced spinning up an instance (actually, a load-balanced pair, probably spanning AZs) to act as an AWS-API proxy for all API traffic I guess I'm wondering whether there's some kind of back-door we can open that allows our VPC EC2 instances access to the AWS API endpoints, but nothing else, for cheap-complexity setup, that doesn't add another network-hop layer to our infrastructure for serving requests.

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  • a brand new FS based on a database without using fuse

    - by Devrim
    hi all, To serve millions of files out of a single directory, being able to connect to a drive from hundreds of endpoints, and for some other reasons (to avoid gluster/nfs/all fs based networking solutions), I want to evaluate the possibility of making a filesystem that's based on a mongodb (or any other). Basically, it works like fusefs, every single file is kept in mongo gridfs. In theory, I do, mount mongodbfs /mountPoint mongodb://localhost then when i say touch /mountPoint/test.txt this file is inserted into mongodb. This FS will also store uid/gid and perms with the file, we can throw hundreds of servers to it, and no useradd will be necessary. I'm not thinking to include all the features of FS, just the ones we need. My question is, how do I start my quest in finding resources, books, links, people, developers who'd help me implement this? at least a proof of concept. Is it feasible? What should I expect as a timeline for such undertaking? Please only think about gazillion small files and folders.

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  • jdbc4 CommunicationsException

    - by letronje
    I have a machine running a java app talking to a mysql instance running on the same instance. the app uses jdbc4 drivers from mysql. I keep getting com.mysql.jdbc.exceptions.jdbc4.CommunicationsException at random times. Here is the whole message. Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was25899 milliseconds ago.The last packet sent successfully to the server was 25899 milliseconds ago, which is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem. For mysql, the value of global 'wait_timeout' and 'interactive_timeout' is set to 3600 seconds and 'connect_timeout' is set to 60 secs. the wait timeout value is much higher than the 26 secs(25899 msecs). mentioned in the exception trace. I use dbcp for connection pooling and here is spring bean config for the datasource. <bean id="dataSource" destroy-method="close" class="org.apache.commons.dbcp.BasicDataSource" > <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/db"/> <property name="username" value="xxx"/> <property name="password" value="xxx" /> <property name="poolPreparedStatements" value="false" /> <property name="maxActive" value="3" /> <property name="maxIdle" value="3" /> </bean> Any idea why this could be happening? Will using c3p0 solve the problem ?

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  • Port knocking via SSH tunnels

    - by j0ker
    I have a server running in my university's internal network. There is only one SSH daemon running which is secured by port knocking with knockd. Works fine if I try to connect from within the internal network. But since the server has no external IP, I have to tunnel into the internal network every time I want to access the server from outside. And since tunneling only works for a single port I cannot do the port knocking as easily as from an internal client. In fact, I don't get it to work at all. What I'm trying is opening tunnels for all the different ports that have to be knocked. Then I send TCP-SYN packets into the tunnels. But that doesn't work even for a single port. If I establish the tunnel on the first port in the knock sequence and send a packet through it, it doesn't reach the server. There is no entry in the log file of knockd, while there should be something like 123.45.67.89: openSSH: Stage 1 (as shown with internal knocks). So I guess, the problem doesn't exist within my knocking script but is a more general one. Are there any known problems with what I'm trying to do? Is it even possible or am I missing something? Thanks in advance!

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  • Can't reliably ping 6224 router from directly-attached system

    - by David Mackintosh
    OK, here's my situation. This is on the internet. The 6224 is the router in this picture and physically resides in Kanata. Both VLAN 1697 and 3994 are provided by an internet service provider. These VLANs are provided through a single 1Gb ethernet wire. The Kanata hosts are directly attached to the 6224; the other two sites are remote. VLAN 3994 is a single IP address space, so theoretically it shouldn't matter physically where the hosts on that subnet are. Here's the problem. I have a monitoring system which is connected further into the internet, so probes from the monitor would come in to this diagram on the 1697 VLAN. When I ping hosts at Albert or Bells Corners from the internet, there is 0 loss. The connection looks perfect. When I ping hosts at Kanata, I lose anywhere from 10 to 40% of the pings. The loss is not predictable, but: when I do lose them, I always lose at least 3, usually 4, rarely more, pings in a bunch. I have attached a monitor directly to the 6224 in Kanata on 3994.. When the monitor pings the 6224 routing interface, I see exactly the same loss pattern -- but NOT at the same time as the loss from the remote system. Ping time is around 1ms. When the monitor pings another system directly attached to the 6224, there is 0 loss. Ping time is about 0.1ms, one-tenth of the time to ping the router. Anyone know what is going on here?

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  • CloudFront with Custom Origin and ELB

    - by kmfk
    We are using CloudFront for our static assets but also wanted to allow for Gzip. We set up a new distribution with a custom origin pointing back to our application servers which are behind a elastic load balancer. We manually keep the files in sync across the cluster and update them when we publish. However, with this set up, we get nothing but Miss and RefreshHits from CloudFront, which so far has defeated the purpose. Is there any additional settings in order to use an ELB as your custom origin? In the docs, it references this as a viable solution. It appears when we point the distribution to a single server in our production cluster, cloudfront properly caches our assets. Is it possible that the sticky sessions cookie and the subsequent header that gets added by it could be an issue? Cache-Control: no-cache="set-cookie" //Added by load balancer Any ideas? FYI - currently, we have our custom origin pointing to a single EC2 instance, so caching is working correctly - in case you try to curl the file below. Example headers: curl -I http://static.quick-cdn.com/css/9850999.css HTTP/1.0 200 OK Accept-Ranges: bytes Cache-Control: max-age=3700 Cache-Control: no-cache="set-cookie" Content-Length: 23038 Content-Type: text/css Date: Thu, 12 Apr 2012 23:03:52 GMT Last-Modified: Thu, 12 Apr 2012 23:00:14 GMT Server: Apache/2.2.17 (Ubuntu) Vary: Accept-Encoding X-Cache: RefreshHit from cloudfront X-Amz-Cf-Id: K_q7Zy3_jdzlEJ85ukELVtdx1GmuXqApAbZZ7G0fPt0mxRMqPKX5pQ==,RzJmPku-rEIO9WlvuSoKa8hiAaR3dLk5KC4cQMWWrf_MDhmjWe8n6A== Via: 1.0 28c34f9fbf559a21ee16594849e4fc9c.cloudfront.net (CloudFront) Connection: close

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  • Ubuntu 10.10 forgets desktop theme.

    - by Marcelo Cantos
    I am running Ubuntu in VirtualBox (on a Windows 7 host). Several times now, the top-level menu bar, the task bar — and seemingly every system dialog — have forgotten the out-of-the-box "Ambiance" theme they conform to when I first installed the system. Window captions still preserve the theme, but pretty much nothing else does. I have searched high and low on Google for assistance with this problem. Everything I've found suggests either running some gconf reset or deleting .gconf* .gnome* and other similar directories. I have followed all this advice and nothing works. I still get a boring Windows-95-style gray 3D look and feel. On previous occasions, after much messing around I've given up and rebooted the VM instance, and been pleasantly suprised to see the original "Ambience" theme restored throughout the UI, but invariably it disappears again some time later, usually after a reboot, so I can never figure out what I did that broke it. Here's a sample from Ubuntu's site of what I want it to look like. And here's a screenshot of my system as it currently looks. Also note that my GNOME Terminals normally have a nice purple semi-translucent look, and as can be seen from the screenshot, they are now just a solid matt white. This last time (just this morning), trying numerous combinations all the usual tricks and rebooting several times hasn't fixed it, so here I am on SU wondering: How do I recover the out-of-the-box theme for my Gnome/Ubuntu desktop, noting that blowing away all config files — as suggested in many places online — fails to achieve this? EDIT: It might help to know that it seems to fail either after I resize the VM instance, forcing the Ubuntu desktop to resize itself, or after I play around with Compiz settings. I haven't been able to figure out which of these it is, and it could be neither. Given the amount of pain I have had to go through to get things back to normal (and given that I am at a loss as to how to do so), it has proven difficult to definitively isolate the cause.

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  • Tables in the SQL Server "master" database, will they cause problems?

    - by pepoluan
    Folks, please be kind on me... I'm just an 'accidental' DBA due to our DBA resigned, so I'm totally a newbie in DBA... You see, I have this application, "ESET Remote Administration Server" (ERAS) that stores its logs and analysis on (originally) a local Access database. The decision was to migrate its database to a SQL Server 2008 R2 machine. ESET (the maker of the software) helpfully provided tools to perform such migration; unfortunately, being the DBA neophyte that I am, I didn't realize that I have to first create my own database (on the SQL Server side) and assign that database as the 'default' database for ERAS' ODBC connection. Now, the migration tool had successfully created a whole bunch of tables inside the "master" database. My questions: Should I leave things be as it is, or should I re-migrate the ERAS database to a different database? If you suggest me perform a re-migration, my plan is to (1) create a new instance, (2) create a new database within the new instance, (3) create a new ODBC System DSN on the ERAS server pointing to the new DB in step 2, (4) use ESET's migration tool to migrate from the current DSN to the new DSN. Do you think I missed a step there? Thanks beforehand for any guidance.

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  • Connection between Asp.Net and Oracle 10g Express Edition

    - by l3gion
    Hello, I'm struggling to find a way to connect my Asp .Net + C# application with my Oracle 10g Express Edition. Here's my scenario, I'm at Mac OS and I have 2 Virtual machines, one for Win 7 (VS 2010 app) and another with a Parallels Virtual Appliance with Oracle 10g Express Edition 1.1. Which provider (Oledb, ODP.NET, etc..) should I use? How to make the connection to the server in C#? Right now I have this: <appSettings> <add key="conn" value="Data Source=10.211.55.11;Persist Security Info=True;User ID=l3gion;Password=l3gion;" /> </appSettings> And at the .cs file: SqlCommand cmd = new SqlCommand("insert_thing", new SqlConnection(ConfigurationManager.AppSettings["conn"])); cmd.CommandType = CommandType.StoredProcedure; *insert_thing is a stored procedure Using this I got this error: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) I've searched for some possible solutions. Tried some, including: firewall disabled, allow remote connection at oracle express edition using this cmd line ("EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);").. The error persists. Can anyone guide me into the right direction? I'm a newbie with this type of things. Thank you for your patience. regards

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  • Linux boot - stop the kernel switching to a new framebuffer mode clearing output

    - by Avio
    I'm working on an embedded system (based onUbuntu 12.04 LTS) and I'm customizing its kernel. I'm having some problem with upstart, mountall and plymouth. Nothing unsolvable I suppose, but the real problem is that I can't diagnose properly what's going on because the kernel (or maybe plymouth) changes the video mode in the middle of the boot process. This completely wipes entire lines of log and prevents any debugging of kernel misconfigurations. My Grub2 config seems to be ok with: GRUB_CMDLINE_LINUX="" GRUB_CMDLINE_LINUX_DEFAULT="acpi=force noplymouth" GRUB_GFXMODE=1024x768x32 GRUB_GFXPAYLOAD_LINUX=keep Here is some relevant output of lspci: 00:00.0 Host bridge: Intel Corporation Mobile 945GSE Express Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GSE Express Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) And here is the relevant portion of my kernel configuration: CONFIG_AGP=y CONFIG_AGP_INTEL=y CONFIG_VGA_ARB=y CONFIG_VGA_ARB_MAX_GPUS=16 CONFIG_DRM=y CONFIG_DRM_KMS_HELPER=y CONFIG_DRM_I915=y CONFIG_DRM_I915_KMS=y CONFIG_VIDEO_OUTPUT_CONTROL=y CONFIG_FB=y CONFIG_FB_BOOT_VESA_SUPPORT=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_VESA=y CONFIG_BACKLIGHT_LCD_SUPPORT=y CONFIG_BACKLIGHT_CLASS_DEVICE=y CONFIG_VGA_CONSOLE=y CONFIG_VGACON_SOFT_SCROLLBACK=y CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=640 CONFIG_DUMMY_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y CONFIG_FONT_8x8=y CONFIG_FONT_8x16=y CONFIG_LOGO=y CONFIG_LOGO_LINUX_MONO=y CONFIG_LOGO_LINUX_VGA16=y CONFIG_LOGO_LINUX_CLUT224=y Every other custom/stock kernel boot fine with that Grub2 config. What I would like to have is a single flow of messages on a single console (retaining one screen resolution) from the bootup logo till the login prompt. Does anybody know what I have to tweak to achieve this?

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  • EC2 AMI won't boot after edit

    - by Eric Lars0n
    I did something stupid, I got a new laptop and copied everything over to the new one, then wiped the old one clean. Then I realized that I forgot to copy the private key out of .ssh that I use to connect to my AWS EBS backed instance. So I can't log in to my custom AMI. So I created a new Volume from the Snapshot of the AMI, then started up a public instance and attached the Volume to it, edit the sshd_config to allow for password log in. Unmounted the volume, detached it, made a snapshot of it, then made a new AMI from the snapshot. The new AMI launches, but never passes the Status Checks and is not reachable. What am I doing wrong? Or alternatively how can I fix my problem? Edit: Adding some of the console output Linux version 2.6.16-xenU ([email protected]) (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Mon May 28 03:41:49 SAST 2007 BIOS-provided physical RAM map: Xen: 0000000000000000 - 000000006a400000 (usable) 980MB HIGHMEM available. 727MB LOWMEM available. NX (Execute Disable) protection: active IRQ lockup detection disabled RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize NET: Registered protocol family 2 Registering block device major 8 XENBUS: Timeout connecting to devices! Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,0)

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  • All applications quit when printing on Mac OS X 10.5.8

    - by Tamany
    I recently ran a software update. I'm not sure if my problems are associated with this but I'm pretty sure they are as I printed successfully before update. I checked the log at time of printing: 03/05/2010 22:03:15 Microsoft Word[697] *** -[NSCFString _getValue:forType:]: unrecognized selector sent to instance 0x17a82b50 03/05/2010 22:03:15 [0x0-0x51051].com.microsoft.Word[697] Ignoring Quickdraw drawing between QDBeginCGContext and QDEndCGContext 03/05/2010 22:03:16 [0x0-0x51051].com.microsoft.Word[697] Ignoring Quickdraw drawing between QDBeginCGContext and QDEndCGContext 03/05/2010 22:03:16 [0x0-0x51051].com.microsoft.Word[697] Ignoring Quickdraw drawing between QDBeginCGContext and QDEndCGContext 03/05/2010 22:03:16 [0x0-0x51051].com.microsoft.Word[697] Ignoring Quickdraw drawing between QDBeginCGContext and QDEndCGContext 03/05/2010 22:03:16 [0x0-0x51051].com.microsoft.Word[697] Ignoring Quickdraw drawing between QDBeginCGContext and QDEndCGContext 03/05/2010 22:03:16 [0x0-0x51051].com.microsoft.Word[697] Ignoring Quickdraw drawing between QDBeginCGContext and QDEndCGContext 03/05/2010 22:03:17 [0x0-0x51051].com.microsoft.Word[697] Mon May 3 22:03:17 leopards-imac-2.local Word[697] <Error>: The function `CGPDFDocumentGetMediaBox' is obsolete and will be removed in an upcoming update. Unfortunately, this application, or a library it uses, is using this obsolete function, and is thereby contributing to an overall degradation of system performance. Please use `CGPDFPageGetBoxRect' instead. 03/05/2010 22:22:09 Microsoft Word[697] *** -[NSCFString _getValue:forType:]: unrecognized selector sent to instance 0x1b036500 Any thoughts on how to fix this?

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  • VPS Memory Exchausted Even With Light Settings

    - by user101570
    Linux noob here. I have a 256MB VPS on Ubuntu 11.04 server and when I run "free -m" the result shows all memory being used (including the second line re: buffers/cache). I found this very strange, considering I only have 5 Apache processes running each chewing up about 20MB each. MYSQL is taking up 30MB. To my knowledge, and according to "top", I have no other memory hogs operating. Settings that may be relevant: PHP memory_limit = 32M MYSQL key_buffer = 16M Prefork MPM Maxclients = 10 So when I reviewed these settings, I naturally thought maxclients was too high, so I tried switching it to 5. Now not only does my memory still show as being 100% used, my website loads much, much slower, despite not getting any traffic aside from mine at the moment. I don't understand this. I thought a single Apache process handles all requests from a client received within the "KeepAliveTimeout" window, which I've set to 2 seconds. With my initial config. of 10 maxclients, my page load times are around .3ms, so a single process should handle that no problem, correct? So next I went to an extreme level of 1 for maxclients. My memory is still at 100% usage and my site loads painfully slow. I'm a noob at a complete loss here. According to the many tutorials I've read on basic server setup, I should be good to go. Help! Please! Edit: total used free shared buffers cached Mem: 256 256 0 0 0 0 -/+ buffers/cache: 256 0 Swap: 0 0 0

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  • ATI Firepro v4800 3 monitor support

    - by Jared275
    I have an interesting, yet very frustrating problem. I have two computers, both running win7 32 bit, and both with ATI Firepro V4800 graphics cards. Both are using the DVI port and two DP to DVI adapters to connect 3 monitors. One of them is able to display three desktops, while the other fails at enabling the third, displaying "cannot save changes" in display properties while requiring that one monitor must be disabled when making the change in CCC. I've verified that both computers have the same driver version and that both are using the same DP-DVI adapters. This articles suggests a few things to try, but none of its suggestions seem to work either. I'm kind of at my wits end, hence my posting here. If this is not an appropriate question for SU, I apologize. I admit that I am not very familiar with the differences between dual link and single link DVI, and that is something I have not verified is standardized between the two computers. Is that a possible reason one is working and the other isn't? How do I check if the DVI cable is a single link, or dual link?

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  • Disable touch pad for mouse button region on new HP pavillion models?

    - by John
    i bought a new hp pavillion dv6 series laptop. the laptop itself is fine but it has the new hp touchpad mouse which i absolutely hate. its such a stupid problem to have with a computer. the left and right mouse buttons are, themselves, part of of the touchpad, meaning that if i tap the buttons without actually pressing them down, it registers the same way as the mouse pad (the cursor moves, tap to click activates, etc.) this is a major annoyance because it prevents you from operating the mouse pad with anything more than a single finger; if for example i use my right hand index finger to move the cursor using the touch pad and rest my left hand index finger on the left mouse button for more efficient mouse-ing, the mouse will react as if im trying to use 2 fingers to move it and it will either just sit there or will spaz out. the only way this works is if i keep the finger that is resting on the mouse button absolutely still, which is very difficult and, therefore, very annoying. also, even if i do abide by the arbitrary new decree of single-finger mousepad operation, i still have a problem because when i press down on the left or right click buttons, the mouse moves slightly, what with the buttons also being part of the touch pad and all. this would not be that hard to avoid except that they decided to also make the buttons much harder to press down. now whenever i go to click something, i press hard on the mouse button, causing my finger to slightly move or roll or flatten out a bit, causing the cursor to move slightly, and causing me to click on something different. what i would like to know is if there is anyway that i can disable the touch pad on the buttons. i have gone through all of the settings under the synaptics menus but i cannot find anything about this. did i miss something in one of the menus? if not, then are there any updated drivers that allow for toggling of this function?

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  • Windows Server 2012 licensing issue preventing RDP connections?

    - by QF_Developer
    I am witnessing an unusual behaviour on 1 of 5 Windows Server 2012 R2 machines (clean install) that is preventing any remote connections from being established via RDP. I have run through the prerequisites for RDP here but I am finding that any remote connection attempt instantly stops the "Windows Protection Service". When I check the event logs I see the following entry. The Software Protection Service has stopped Event ID: 903 Source: Security-SPP From what I have read Security-SPP is tasked with enforcing activation and licensing, it appears that RDP requires this service to be in the running state. Is it possible that I have inadvertently activated this instance of Windows with a key that has already been associated to another instance (We have 5 keys as part of an MSDN subscription)? Would this be sufficient to block RDP access? When I look under System Properties (Windows Activation) it states that Windows is activated and there are no other obvious indicators that there's a licensing issue. EDIT 1: I ran a Powershell script to display the product keys for all servers in order to check for any duplication. For the problematic server I am getting the message The RPC server is unavailable.

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  • Setting up apache vhost for Icinga

    - by DKNUCKLES
    It's been a while since I've worked with Apache so please be kind - I'm also aware of this question but it hasn't been much help to me. I'd like to set up a simple vHost w/ Apache for my Icinga instance. Icinga is up and running and I can access it from x.x.x.x/icinga, however would like to be able to access it externally as well as internally. I have set up the /etc/hosts file and the following is my barebones vhost statement in httpd.conf <VirtualHost *:80> ServerAdmin [email protected] DocumentRoot /usr/share/icinga ServerName icinga.domain.com ErrorLog logs/icinga.com-error_log CustomLog logs/dummy-host.example.com-access_log common </VirtualHost> I also have the following in my .htaccess file <Directory> Allow From All Satisfy Any </Directory> An entry has been made for the instance in the Windows DNS server on my network, however when I try to access the site by URL I am greeted with Internal Server Error. Reviewing the /var/log/icinga.com-error_log I see the following entry. [Thu Dec 13 16:04:39 2012] [alert] [client 10.0.0.1] /usr/share/icinga/.htaccess: <Directory not allowed here Can someone help me spot the error of my ways?

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  • VMware Workstation Bridged Network Host UnReachable

    - by user2097818
    VMware Workstation 7 on Win7-64 (Home Premium). I have confirmed this on any guest running on this machine (from winxp to debian). I am using a bridged network connection for my guests (Automatic on VMnet0). All of the network configuration is done with DHCP (including on the host). Problem What I can not do: Ping my host machine from inside any VM. (either shows me "Destination Host Unreachable" or will just timeout) What I CAN do right after power up, with no problems at all. I can connect to the internet from inside the VM I can ping my router from inside the VM I can ping other machines on my network from inside the VM Other machines can ping the VM Other machines can ping the host My host machine can ping the VM (this one is important. read further) Details So I have my router assigned as 192.168.2.1/255.255.255.0, and the router provides the DHCP service (and it seems to be doing so successfully). There are no IP conflicts on the network that I am aware of. All Gateways and Subnet masks are appropriate and matching. My entire workshop is on one single subnet, with one single DHCP server and gateway. There is one method in which I can ping successfully, but it requires an active connection initiated from the host (I start pinging from host to VM). During the period of the active connection, I can successfully ping from VM to host, using explicit IP address. As soon as the host connection is closed, the VM ping starts hanging with the same old messages. My Thoughts This really feels like a firewall problem, but I have turned off all firewalls on host and VM, powered down the network, powered back up, and the problem still persists. And if it was firewall, why would only the IP address associated with bridged VM networks be blocked. I feel as though my host operating system (Win7) is somehow configured incorrectly, or, VMware Workstation is configured incorrectly from the host side. Although I have done my best to put everything in default, I feel like I am missing something silly.

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  • Trouble setting up incoming VPN in Microsoft SBS 2008 through a Cisco ASA 5505 appliance

    - by Nils
    I have replaced an aging firewall (custom setup using Linux) with a Cisco ASA 5505 appliance for our network. It's a very simple setup with around 10 workstations and a single Small Business Server 2008. Setting up incoming ports for SMTP, HTTPS, remote desktop etc. to the SBS went fine - they are working like they should. However, I have not succeeded in allowing incoming VPN connections. The clients trying to connect (running Windows 7) are stuck with the "Verifying username and password..." dialog before getting an error message 30 seconds later. We have a single external, static IP, so I cannot set up the VPN connection on another IP address. I have forwarded TCP port 1723 the same way as I did for SMTP and the others, by adding a static NAT route translating traffic from the SBS server on port 1723 to the outside interface. In addition, I set up an access rule allowing all GRE packets (src any, dst any). I have figured that I must somehow forward incoming GRE packets to the SBS server, but this is where I am stuck. I am using ADSM to configure the 5505 (not console). Any help is very much appreciated!

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  • Internet setup for my office

    - by prakash
    We have two internet connections to our office and our current setup is like this.. The internet connections require pppoe log in so i take each cable and plug it into a wifi router and configure the router to log in to the pppoe and then plug in a cable from the router to a switch and distribute the internet throughout my office. The problem with this setup is it is really hard to monitor and im not able to monitor who is hogging internet usage and what he or she is actually using it for. apart from this we also have a nas setup which is routed through another switch . Could someone please throw a little light on how i can restructure this setup for easy monitoring and better transparency... ? each wan router is connected to a different switch and is distributed to users accordingly.. we have around 40 users in the office.. we want to setup a single linux box to which i want to connect the two wan connections and from there distribute it to all our users.... im looking for a solution where we do not have to invest more that buying a single pc and a couple of nics

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  • EC2 Auto-Scaling with Spot and On-Demand Instances?

    - by platforms
    I'm looking to optimize the cost of our auto-scaling EC2 groups by having them launch spot instances instead of on-demand instances. What I really want is to be able to keep some servers in the group as on-demand instances, regardless of what happens to the spot instance pricing market. Then I want any additional servers in the group, above my configured minimum, to be spot instances. I'm generally OK with the delay in adding servers via spot requests. I can't seem to find any way to do this and I've tried to scour the AWS documentation. It appears that an ASG can either be on-demand or spot, but not a hybrid. I could possibly manually add an on-demand instance to the Elastic Load Balancer assigned to the auto-scaling group, but then the load of that server would not be factored into the auto-scaling measurements and triggers. I suppose I could enter a ridiculously high bid price in order to ensure that I always get the servers I need, but then I look at the pricing history and see occasional large spikes. The AWS documentation is at odds with itself, since in one place it says that if you enter a server minimum, that number is "ensured" to be there. But then when you read about spot instances, there are no assurances. The price differential for spot is compelling, so I'd like to leverage that as much as I can while still maintaining an always-on baseline. Is this possible?

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  • How to determine if my AWS/EC2 server has been compromised / resolution?

    - by ElHaix
    I have recently seen an increase in network in/out activity on my server and am trying to determine if my AWS/EC2 instance has been compromised, and if so, how to resolve? In my security group I have: Inbound: 80 (HTTP) 0.0.0.0/0 Outbound: 80 (HTTP) 0.0.0.0/0 443 (HTTPS) 0.0.0.0/0 Using TCP-UDP Endpoint Viewer: I see a lot of w3wp.exe TCP processes with varying local ports http and numbered, as well as varying remote ports. Some processes go red/yellow/green on updates . I see Remote address for most w3wp processes are my ec2 instance, however I am seeing several to *.deploy.akamaitechnologies.com and *.deploy.static.akamaitechnologies.com with received bytes varying between 4-11 megs. I also see Ec2Config.exe, remote address: 169.254.169.254 System Process Remote Address: fetcher4-4.p.mail.ru (how can I get rid of this one?!) local port: http remote port: 33432 I am also seeing some system processes from 114.216-244-93-rdns.wowrack.com: Protocol: TCP local port: http remote port: varying As well as some baiduspider "System Process"'s. I'm afraid that my system may have been compromised, and wondering if these results are any indication of that. If so, how can I get eliminate these possible threats? I have MS Security Essentials installed.

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  • How can I inject clips [ads] in a playlist every x minutes (even if previous clip is not over)

    - by azera
    Sorry for the title, I find it quite hard to describe what I want to do in a single sentence We have a few TV here linked to our computer, which we use to display clips about what we do in our sport center, what you should do to stay in good form ect ... It's running non stop, actually though vlc + playlist. Those main clips are 1-2 hours long and we have about 20 of them looping randomly all day. We would like to inject ads for some of our sponsiored products every now and then during the playlist, like say one ad every 15 minute. Does any one know how we can do that, while keeping the main clip random order ? I thought about encoding the whole thing as a single movie with ads inserted, but then it's not random. So we can put the ads in the playlist itself right ? Except clips are several hours long and we want that more often than that. Cutting the main clips in several pieces seems to work but that kind of sucks as new clips are made every month. If any one has an idea, thanks a lot

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  • How to secure a group of Amazon EC2 instances

    - by ks78
    I have several Amazon EC2 instances running Ubuntu 10.04 and I've recently started using Amazon's Route 53 as my DNS. The purpose of doing that was to allow the instances to refer to each other by name rather than private IP (which can change). I've pointed my domain name (via GoDaddy) to Amazon's name servers, allowing me to access my EC2 webservers. However, I noticed I can now access the EC2 instances which I don't want to be public, such as the dedicated MySQL Server. I was thinking Amazon's Security Groups would still be in effect when using Route 53, but that doesn't seem to be the case. Before I started using Route 53, I was thinking of having one instance run a reverse proxy, which would help protect the web servers behind it. Then IP-restrict all the other instances. I know IP restricting can be done using the firewall within each instance, but should I ever need to access them from another IP address, I'd need a way in. Amazon's control panel made it a breeze to open a port when necessary. Does anyone have any suggestions for keeping EC2 instances secure, but also accessible to their administrator? Also, what's the best topology for a group of EC2 instances, consisting of web servers and a dedicated database server, from a security perspective? Does having a reverse proxy server even make sense?

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