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• Screen occasionally flashes black when under load, sometimes does not recover

  - by Oak

  I've built a brand new machine, but to my horror my monitor occasionally flashes black for around a second, then returning to normal. This happens under load (watching videos / playing games) but only sometimes; e.g. it doesn't occur in "Batman: Arkham City" but does in "XCOM: Enemy Unknown". When watching videos, it also occurs when not watching them full-screen, and it sometimes even occurs when the machine isn't doing anything, just sitting at the desktop and moving the mouse around. Has anyone ran into this problem and knows of any solution? Additionally, sometimes after the black screen, it won't return to normal, instead turning completely corrupt. In these cases even quitting the application doesn't help, but physically disconnecting and reconnecting the monitor fixes the problem. This problem did not occur on my earlier machine which used the same physical monitor. Additional details: Windows Server 2012, configured as Windows 8, with latest updates installed NVIDIA GeForce GTX 660 Ti, with latest driver installed Ample amounts of CPU and RAM for playing the above games and for watching videos. I've read about similar problems elsewhere but could not find a working solution: http://www.youtube.com/watch?v=Zt00C-HXFbA&noredirect=1 http://www.sevenforums.com/hardware-devices/59126-monitor-flashing-black.html https://eu.battle.net/d3/en/forum/topic/4079098908?page=4 http://www.tomshardware.com/forum/347422-33-screen-flickering-black-nvidia-driver-update

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• How can I make WSUS less invasive for our users?

  - by Cypher

  We have WSUS pushing updates out to our user's workstations, and things are going relatively well with one annoying caveat: there seems to be an issue with a pop-up being displayed in front of some users informing them that their machine will be rebooted in 15 minutes, and they have nothing to say about it: This may be because they did not log out the prior night. Nevertheless, this is a bit too much and is very counter-productive for our users. Here is a bit about our environment: Our users are running Windows XP Pro and are part of an Active Directory Domain. WSUS is being applied via Group Policy. Here is a snapshot of the GPO that is enforcing the WSUS rules: Here is how I want WSUS to work (ideally - I'll take whatever can get me close): I want updates to automatically download and install every night. If a user is not logged in, I would like the machine to reboot. If a user is logged in, I would like their machine not to reboot, but instead wait until the next "installation period" where it can perform any other needed installations and reboot then (provided the a user account is not still logged in). If a user is to be prompted for reboot, it should only happen once per day (if possible), but every time they are prompted, they must have a way to postpone the reboot. I do not want users to be forced to restart their computer whenever the computer thinks it should happen (unless it's after an update installation and there are no logged in users). That doesn't seem productive to force a system restart in the midst of a person's workday. Is there something that I can do with the GPO that would help make WSUS less intrusive? Even if it gave the user an option to Restart Later - that would be better than what is happening now.

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• IIS 7 and ASP.NET State Service Configuration

  - by Shawn

  We have 2 web servers load balanced and we wanted to get away from sticky sessions for obvious reasons. Our attempted approach is to use the ASP.NET State service on one of the boxes to store the session state for both. I realize that it's best to have a server dedicated to storing sessions but we don't have the resources for that. I've followed these instructions to no avail. The session still isn't being shared between the two servers. I'm not receiving any errors. I have the same machine key for both servers, and I've set the application ID to a unique value that matches between the two servers. Any suggestions on how I can troubleshoot this issue? Update: I turned on the session state service on my local machine and pointed both servers to the ip address on my local machine and it worked as expected. The session was shared between both servers. This leads me to believe that the problem might be that I'm not using a standalone server as my state service. Perhaps the problem is because I am using the ip address 127.0.0.1 on one server and then using a different ip address on the other server. Unfortunately when I try to use the network ip address as opposed to localhost the connection doesn't seem to work from the host server. Any insight on whether my suspicions are correct would be appreciated.

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• Why do I need to set up Autologon values in registry twice before it works and can i fix this?

  - by jJack

  Background: As part an automated testing suite I am building, I need to set up Autologon on my virtual machines 'on demand'. By on demand, I mean that I don't want to necessarily pre-configure my VM or any snapshot to have Autologon set up already, for security reasons and also a huge business case. My solution so far: I'm copying a script to the guest machine and then using Sysinternals PsExec to execute it. The script is: reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v DefaultUserName /t REG_SZ /d myusername reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v DefaultPassword /t REG_SZ /d myfakepassword reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v DefaultDomainName /t REG_SZ /d mydomain reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v ForceAutoLogon /t REG_SZ /d 1 reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v AutoAdminLogon /t REG_SZ /d 1 reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoLogonChecked" /f /ve /d 1 Note: I don't believe AutoLogonChecked is required for machines post Windows 2000 but I'm doing it just in case for now. Maybe ForceAutoLogon isn't either, not sure yet. The Problem: I see PsExec executes this properly and all the values are in the registry, however when I restart the machine, the user isn't automatically logged on...When I run this a second time then restart the machine, the user is finally logged on. A diff between the registry states shows that the first time I run this, it is missing both the "1" for AutoAdminLogon, and also the DefaultPassword key. The second time I execute it, these values are correctly intact as I intended. So, what is going on here? Is this expected? This post claims in the end that it really all just works (the problem was that a logoff script was setting off the values). Doesn't seem to work for me however.

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• Migrate Maildir between courier and dovecot servers

  - by DeaconDesperado

  I have several tarballs that make up all the previous emails for two or three accounts on a mail server. This machine we be shut down within a few weeks and so I need to migrate all the previously subscribed IMAP folders to the new server. The old machine ran Dovecot with exim and delivered all mail to a virtual user folder on the server in maildir format. The new machine uses courier and postfix, also configured to deliver through maildir. The new server is already setup and all clients are successfully logging in, the problem is migrating their old conversations. I've tried moving the old message files directly and deleting the imap db that records which messages have already been fetched, but nothing has been successful. The outlook clients present an error for every message saying that the "message can no longer be located on the server." Keeping the files chronologically sorted is not an object, I just need to migrate the old conversations over. Is there a way to do this in a batch operation that will allow the clients to login to the new server and treat these old messages as though they were new? What is the protocol for this kind of migration?

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• Windows 8.1 in a VMWare Workstation 10 guest's mouse is missing, but only sometimes

  - by Rob Perkins

  I have VMWare Workstation 10 running on a Windows 7 machine, hosting a k guest OS. Before upgrading to WS 10 I was using version 9, and the Win8 guest OS ran without difficulty or error conditions. Since upgrading and installing the most current VMWare Tools inside the guest after upgrading to version 10, there are circumstances where the mouse pointer is not visible; the mouse position appears stuck at a screen location which is not the center of the virtualized display; and mouse click and scrolling events still get processed. Once this begins happening I have to reboot the host machine to get it to stop. (VMWare Tools 9.6.1 build-1378637 is what the WS 10 software installed) The problem seems to correlate with whether the mouse is captured during Win 8.1's bootup process, before control is passed to the login screen. If I explicitly click the mouse into the guest OS and move it slowly around while the system is booting, then I see the mouse after clicking to lift the first screen and expose the password prompt, and there is never a problem within the guest. If I don't do this during bootup, there is no mouse pointer, with the symptoms listed above. I have tried removing and reinstalling VMWare tools, and the other steps published for "mouse problems" from VMWare's chaotic troubleshooting database. The problem persists. Is there a setting in the virtual machine's configuration which could prevent this behavior?

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• Copying windows home server backup offsite

  - by Simon

  What ways are there to copy a windows home server backup to an offsite location? I'm talking specifically (and only) about the automated backup of my entire machine, and not the shared network folders. I am 90% working away from home on my laptop which has a 640GB drive so the shared folders are essentially useless to me. I backup every night, but if my house burns down or broken into the I'm in serious serious trouble ! I'm really looking for some alternative way to back up my entire machine - which much not interfere with the reliability or speed by which my WHS backs up my laptop every night. Either a way to 'export' a complete machine backup from the server, or recommendations on non-conflicting software I can backup to a 1TB drive at work are what I'm looking for. Note: I believe that WHS uses its own completely proprietary backup and doesn't use things like any 'backup bit' or 'archive bit'. I just dont want to install some other backup software that will conflict. PS I'm now running Windows 7 and just realized that I should probably check out the backup functionality it gives me. I assume that won't conflict right! Edit: Thanks for the hosted solutions. I'd also appreciate ways to backup to an 'offsite' location that I control - like my office vs. my home. The hosted solutions I think will be too slow or expensive for my needs.

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• Can a website company that builds 4-5 websites a year afford dedicated hosting?

  - by Petras

  We manage about 30 websites that use shared ASP.NET SQL Server web hosting. These are typical small/medium business websites and they perform fine in this environment. Recently I was looking at VPS hosting in this thread http://serverfault.com/questions/128329/how-do-you-host-multiple-public-facing-websites-on-a-vps After contacting a provider in one of the replies I was told that VPS hosting is not recommended for 30 sites, even if they are small. The resource requirements might be too great even for VPS. So I should turn to dedicated hosting. The lowest cost dedicated hosting is $219 per month (see http://www.serverintellect.com/dedicated/pentiumdservers.aspx). But this is only for a single processor which seems too light for a machine running both IIS and SQL. In our office all the developers work on quad cores so I assume I’d really need the Quad Processor. However, this starts at $599 monthly. Now, I won’t be able to transfer all of our 30 sites to this machine. I’d only be able to transfer say 5 or 6. However, moving forward, I’d be able to host all future sites on this machine. This amounts to 4-5 per year. Let’s look at the economics. Shared hosting costs are typically $16.95 monthly (see http://www.crystaltech.com/dotnet.aspx). So here’s the dilemma First months costs: $599 First month revenue: 6x$16.95 = $101.7 Loss in first month: $497.3 First year costs: $599x12=$7188 First month revenue: 6x$16.95x12 + 5x$16.95x6(averaged) = $1728.9 Loss in first year: $5459.1 Clearly it is going to take years for this server to pay for itself. It just doesn’t seem economical! Am I missing something here, or is dedicated not the way to go with the amount of sites we build?

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• OpenVPN-based VPN server on same system it's "protecting": feasible?

  - by Johnny Utahh

  Scenario: hosted machine (typically a VPS) serving wiki, svn, git, forums, email lists (eg: GNU mailman), Bugzilla (etc) privately to < 20 people. People not on team not allowed access. Seeking VPN-restricted access to said server. Have good user experience with OpenVPN-based servers/clients, but have yet to server-admin such systems. Otherwise, experienced Linux sysadmin. Target system: Ubuntu, probably 12.04. Seeking to put an OpenVPN process on above server to "protect" all the above-mentioned services, enabling only OpenVPN-authorized clients/processes to access above services. (Can easily acquire additional IP address(es) as needed for this setup.) Option: if absolutely needed, can employ an additional, dedicated, "VPN server" VPS simply to be my VPN server "front end." But prefer to have all server processes (VPN server plus other server apps) all running on same machine, if possible. Will consider further if dedicated-VPN-machine setup enables 1. easier installation/administration, 2. better/easier end-user experience, and/or 3. makes system significantly more secure. Any of above feasible? The main intention: create a VPN from purely-hosted resources, and not spend all the effort to make a non-VPN, secure site--which typically means "SSL wrapping" + all the continual webserver-application-update management. Let the VPN server deal with access security, and spend list time pushing said security "down" in the other apps/Apache.

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• Installing Ubuntu guest crashes Hyper-V host

  - by Grant

  I have a weird problem that I don't even know where to begin diagnosing. Trying to install Ubuntu to a VM locks up the host system! My setup is: Dell R715 server, dual 16 core AMD opteron processors, 96GB RAM Dell MD3600f SAN Server 2008 R2 Datacenter System Center VMM 2012 There are 5 windows virtual machines running that have had no problems. This is the first linux VM I've tried to create. I setup a VM through virtual machine manager, set the CD drive to a Ubuntu 12.04 server x64 iso, and started it up. It boots up the normal ubuntu install menu, but the second I hit enter on "Install Ubuntu Server", I get disconnected. The HOST machine stops responding to pings. So do all virtual machines on it. It locks up entirely - keyboard on the host won't work, mouse won't move, numlock light won't change. There's no blue screen - the host is sitting at the login screen completely unresponsive. I can't find any relevant logs in event viewer after rebooting. What could cause the host machine to freeze like that? It's not a one time occurrence - it happens every time at the exact same point. Thank god this server isn't in production yet!

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• “NT AUTHORITY\ANONYMOUS LOGON” error in Windows 7 (ASP.NET & Web Service)

  - by Tony_Henrich

  I have an asp.net web app which works fine in Windows XP machine in a domain. I am porting it to a Windows 7 stand alone machine. The app uses a web service which makes a call to sql server. The web server (IIS 7.5) and SQL Server are on the same stand alone machine. I enabled Windows authentication for the website and web service. The web service uses a trusted connection connection string. The web service credentials uses System.Net.CredentialCache.DefaultCredentials. I noticed username, password and domainname are blank after the call! The webservice and web site use the 'Classic .NET AppPool' with NetworkServices identity. I am getting an exception "NT AUTHORITY\ANONYMOUS LOGON" in the database call in the web service. I am assuming it's related to the blank credentials. I am expecting ASPNET user to be the security token to the database. Why is this not happening? Did I miss a setting? (Usually this happens when sql server and web server are on two different machines in a domain, delegation & double hopping, but in my case everything is on a dev box)

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• Windows 7 can't find Ubuntu computer by hostname

  - by endolith

  I got a new Windows 7 machine, and was using VNC, SSH etc to connect to my Ubuntu machine, and it worked fine previously connecting to the Ubuntu computer's hostname. Now it doesn't work if I use the machine's hostname, but it does if I use the local IP or DynDNS name. I can also access it from my Android phone using the local hostname over SSH. If I try to connect with SSH to the hostname, it says "Host does not exist". VNC says "Failed to get server address". NX says "no address associated with name", and I don't see it in Windows' "Network" folder. I've rebooted everything. I've turned off Windows firewall. It was working fine a few days ago, but now it's not. How do I figure out what's blocking it? Aha: It probably has something to do with Samba. I reset the Samba configuration the other day, and apparently this can affect it. http://ubuntu-virginia.ubuntuforums.org/showthread.php?t=1558925 I tried commenting out "encrypt passwords = No" as described there, but it still doesn't work.

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• Building vs buying a server for an academic lab [closed]

  - by Roy

  I'm looking for advice on the classic build vs buy question. We need a new linux server to run Matlab computation on in our lab (academic). Matlab parallel computing toolbox licence allows up to 12 local workers so we are aiming at a 12 core server with 4GB memory per core (total of 48gb). The system will have an SSD for the OS and a raid-5 (4x2tb) for data. I looked around and found a (relatively) cheap vendor, Silicon Mechanics, that offers a system to our liking (specs below) for $6732. However, buying the components from newegg cost only $4464! The difference is $2268 which is 50% of the base cost. If buying from a company can be thought of as a sort of insurance, basically my premiums are of 50% of the base cost which to me sounds like a lot. Of course any downtime is bad, but the work is not "mission critical", i.e. if it takes a few days to fix it when it breaks its no the end of the world. If it takes weeks to months then its a problem. If it breaks 2-3 times in 3 years, not too bad. If it breaks every month not good. In term of build experience, I set up a linux cluster in grad school (from existing computers) and I build my home pcs but I never built a server before. The server components I'm thinking about: 1 x SUPERMICRO SYS-7046T-6F 4U Tower Server Barebone Dual LGA 1366 Intel 5520 DDR3 1333/1066/800 ($1,050) 12 x Kingston 4GB 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) ECC Unbuffered Server Memory ($420) 2 x Intel Xeon E5645 Westmere-EP 2.4GHz LGA 1366 80W Six-Core ($1,116) 4 x Seagate Constellation ES 2TB 7200 RPM SATA 6.0Gb/s 3.5" ($1,040) 1 x SAMSUNG Internal DVD Writer Black SATA ($20) 1 x Intel 520 Series 2.5" 180GB SATA III MLC SSD $300 1 x LSI LSI00281 PCI-Express 2.0 x8 MD2 Low profile SATA / SAS MegaRAID SAS 9260CV-4i Controller Card, $695

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• RAID 10 or RAID 5 for multiple VMs - what is the best choice?

  - by Lars Fastrup

  I have just ordered a new rig for my business. We do a lot of software development for Microsoft SharePoint and need the rig to run several virtual machines for development and test purposes. We will be using the free VMware ESXi for virtualization. For a start, we plan to build and start the following VMs - all with Windows Server 2008 R2 x64: Active Directory server MS SQL Server 2008 R2 Automated Build Server SharePoint 2010 Server for hosting our public Web site and our internal Intranet for a few people. The load on this server is going to be quite insignificant. 2xSharePoint 2007 development server 2xSharePoint 2010 development server Beyond that we will need to build several SharePoint farms for testing purposes. These VMs will only be started when needed. The specs of the new rig is: Dell R610 rack server 2xIntel XEON E5620 48GB RAM 6x146GB SAS drives Dell H700 RAID controller We believe the new server is going to make our VMs perform a lot better than our existing setup (2xIntel XEON, 16GB RAM, 2x500 GB SATA in RAID 1). But we are not sure about the RAID level for the new rig. Should we go for having the the 6x146GB SAS drives in a RAID 10 configuration or a RAID 5 configuration? RAID 10 seems to offer better write performance and lower risk of a RAID failure. But it comes at a cost of less drive space. Do we need RAID 10 or would RAID 5 also be a good choice for us?

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• Google Drive terminates without error on startup

  - by Iszi

  I've used Google Drive for awhile now, but it won't start up after installing on my latest system re-build. I'm still using the same OS, hardware, and basic software load (antivirus, firewall, etc.) that I have for years during which I had not previously had problems with Drive. OS: Windows 7 Ultimate x64 Google Drive Version: 1.12.5329.1887 Now, whenever I try to run Google Drive, it just spawns two instances of the executable which die shortly after. No error messages are posted to the desktop, and nothing indicating any problem is written to the Event Log. After some research, I've yet to find anyone having the same problem who's found an answer. I did find out how to run Google Drive in diagnostic mode, using the --vv parameter at the command line. After that, I opened up the sync log and got this: 2013-10-31 17:11:24,039 INFO pid=3664 1892:MainThread logging:1600 OS: Windows/6.1.7601-SP1 2013-10-31 17:11:24,039 INFO pid=3664 1892:MainThread logging:1600 Google Drive (build 1.12.5329.1887) 2013-10-31 17:11:24,039 DEBUG pid=3664 1892:MainThread logging:1608 DEBUGGING DUMP is ON. 2013-10-31 17:11:24,051 ERROR pid=3664 1892:MainThread logging:1575 ERROR, UNEXPECTED EXCEPTION 2013-10-31 17:11:24,051 ERROR pid=3664 1892:MainThread logging:1575 [Error 5] Access is denied Traceback (most recent call last): File "<string>", line 232, in Main File "<string>", line 118, in RegisterCustomFileTypes File "P:\p\agents\hpal4.eem\recipes\353983091\base\b\drb\googleclient\apps\webdrive_sync\windows\build\pyi.win32\main\outPYZ1.pyz/windows.registry", line 62, in GetValue WindowsError: [Error 5] Access is denied 2013-10-31 17:11:24,052 INFO pid=3664 1892:MainThread logging:1600 Crash reporting disabled. Ignoring report. 2013-10-31 17:11:24,052 INFO pid=3664 1892:MainThread logging:1600 Exiting with error code: 0 I'm running on an account with Administrator-level permissions, and have even tried using "Run As Administrator" on the EXE. I'm not sure why it's looking for a P:\ drive, as no such volume has ever been mounted on this system. What should I do to try to further troubleshoot, and resolve, this issue?

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• samba access from win98

  - by SimonSalman

  Hello, the admin installed a new file server in our institute: OpenSuse 11.1 with Samba 3.2.7-11.3.2-2154-SUSE-CODE11. They copied the smb.conf from the old machine (hosting Samba 3.0.0) to the new one. Everything works as before, but one Windows 98 machine can see but not access the file server. It prompts for user authentication, but will not accept any user-password combination. There exists a lot of discussion about the problem on the net, but none provided a clear answer to the problem. EDIT: 1. I changed Win98 registry enable plain-text passwords, and alternatively changed server's smb.conf and /etc/smbpasswd to accept encrypted passwords 2. Further I provide a profile with a user-password combination on Win98 machine similar to one of the samba users-password combinations. 3. I changed smb.conf such that the samba server is the Local Master Browser all these changes are not necessary when using the older samba server. So, I conclude that a configuration problem on the server side is likely. If you need any further information, I will post them here. Best regards, Simon

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• Strange IP address showing up with OS X ssh

  - by user50799

  I was futzing around with DTrace on Mac OS X and found the following script that prints out information about connections being established: $ cat script.d syscall::connect:entry { printf("execname: %s\n", execname); printf("pid: %d\n", pid); printf("sockfd: %d\n",arg0); socks = (struct sockaddr*)copyin(arg1, arg2); hport = (uint_t)socks->sa_data[0]; lport = (uint_t)socks->sa_data[1]; hport <<= 8; port = hport + lport; printf("Port number: %d\n", port); printf("IP address: %d.%d.%d.%d\n", socks->sa_data[2], socks->sa_data[3], socks->sa_data[4], socks->sa_data[5]); printf("======\n"); } I run it in one window: $ sudo dtrace -s ./script.d Then I ssh to another machine from another window. I get this output from my dtrace window: CPU ID FUNCTION:NAME 0 18696 connect:entry execname: ssh pid: 5446 sockfd: 3 Port number: 22 IP address: 192.168.0.207 ====== 0 18696 connect:entry execname: ssh pid: 5446 sockfd: 5 Port number: 12148 IP address: 109.112.47.108 ====== ^C The first IP address I can explain (192.168.0.207), that's the machine I'm connecting to. But what's with the 109.112.47.108 machine? It doesn't show up in tcpdump nor netstat -an Is there something with my dtrace code or my understanding of how the connect system call works?

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• How to monitor bandwidth use of each device on wifi network

  - by GWLlosa

  I have in my home a standard Comcast cable internet connection. I have it going from the wall to a cable modem, and from the modem to a late-series Linksys router, which provides wired and wireless networking. The vast majority of the users are wireless connections. For day-to-day tasks, this connection is fully sufficient for all my needs. However, on regular occassions, we have social gatherings that involve many people bringing laptops and other PCs and using the network and internet simultaneously, frequently for gaming. I have no administrative oversight over these machines; they have been known to be riddled with spyware and/or bloatware or be running torrents, legal or otherwise. The only reason I care is that on a regular basis, one of the machines will flatline my internet bandwith, and consume it all in order to upload/download/spam people/whatever. When this happens, the latency of the connections for gaming and the like becomes unacceptable, and everyone suffers. My question is: Is there a system I can set up whereby I can easily monitor the various systems connected to my wireless connection, see how much bandwith each one is using, and for what ends? That way, at a glance, I can spot the offending machine and kick it from the connection, without having to go from machine to machine, checking each one's "bandwith used" properties manually, and dealing with the owner's indignant protests all the while. I understand this will likely involve 3rd-party software and/or hardware; my issue is I don't even know where to begin.

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• Incredble low disk performance on HP DL385 G7

  - by 3molo

  Hi, As a test of the Opteron processor family, I bought a HP DL385 G7 6128 with HP Smart Array P410i Controller - no memory. The machine has 20GB ram 2x146GB 15k rpm SAS + 2x250GB SATA2, both in Raid 1 configurations. I run Vmware ESXi 4.1. Problem: Even with one virtual machine only, tried Linux 2.6/Windows server 2008/Windows 7, the VMs' feel really sluggish. With windows 7, the vmware converter installation even timed out. Tried both SATA and SAS disks and SATA disks are nearly unsusable, while SAS disks feels extremely slow.I can't see a lot of disk activity in the infrastructure client, but I haven't been looking for causes or even tried diagnostics because I have a feeling that it's either because of the cheap raid controller - or simply because of the lack of memory for it. Despite the problems, I continued and installed a virtual machine that serves a key function, so it's not easy to take it down and run diagnostics. Would very much like to know what you guys have to say of it, is it more likely to be a problem with the controller/disks or is it low performance because of budget components? Thanks in advance,

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• How to secure an Internet-facing Elastic Search implementation in a shared hosting environment?

  - by casperOne

  (Originally asked on StackOverflow, and recommended that I move it here) I've been going over the documentation for Elastic Search and I'm a big fan and I'd like to use it to handle the search for my ASP.NET MVC app. That introduces a few interesting twists, however. If the ASP.NET MVC application was on a dedicated machine, it would be simple to spool up an instance of Elastic Search and use the TCP Transport to connect locally. However, I'm not on a dedicated machine for the ASP.NET MVC application, nor does it look like I'll move to one anytime soon. That leaves hosting Elastic Search on another machine (in the *NIX world) and I would probably go with shared hosting there. One of the biggest things lacking from Elastic Search, however, is the fact that it doesn't support HTTPS and basic authentication out of the box. If it did, then this question wouldn't exist; I'd simply host it somewhere and make sure to have an incredibly secure password and HTTPS enabled (possibly with a self-signed certificate). But that's not the case. That given, what is a good way to expose Elastic Search over the Internet in a secure way? Note, I'm looking for something that hopefully, will not require writing code to provide shims for the methods that I want (in other words, writing forwarders).

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• Can a Windows Domain play along with a Hosted Exchange service?

  - by benzado

  I'm setting up a computer network for a small (10-20 people) company. They are currently using a Hosted Exchange service they are totally happy with. Other than that, they are starting from scratch (office doesn't even have furniture yet). They will need some kind of file sharing server set up in their office. If I set up a machine as a file server and nothing more, users will have three passwords to deal with: local machine, file server, and email. If I set up a Domain Controller, identities for local machine and file server will be the same. But what about the Hosted Exchange server? Must the users have a separate email password, or is it possible to combine the two? (I realize it might depend on the specific hosting provider, but is it possible?) If not, it seems like I have these options: Deal with it: users have a separate email password. Host Exchange on the local server: more than they want to manage in-house? Purchase a hosted VPS, make it part of the domain, and host Exchange there. (Or can/should a VPS be a domain controller?) I realize I have a lot of questions in there. The main one: is there any reason to use a Hosted Exchange service if I'm setting up other Windows services?

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• File sharing problem on Windows Server 2003 x64

  - by O. Askari

  Hi, We have a customer that hosts our .NET application server on Windows Server 2003 x64. The problem is, its file sharing gets totally disabled after about 10-30 minutes. The only way to re-enable it is to restart the server but the same thing happens again after each restart. This server contains SQL Server 2005 Enterprise, .NET Framework 3.5 and our .NET based application server. We haven't had such a problem with any other customer before so we asked them to prepare another server to deploy our application on it. We installed our application server on the new machine and let SQL Server remain on the old one. Unfortunately the same problem happened to the new machine too. Now the old machine works only as database server and the new one works as application server but both of them have the same file sharing problem. File sharing on both machines doesn't get disabled on the same time but it eventually happens to both of them. I wonder why is this happening and how to find the reason to this problem. Any suggestion or solution is much appreciated.

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• Microsoft Word "Random" Crashes

  - by Bent Rasmussen

  Word seemingly randomly crashes in an application setting where it is first being used to programmatically databind (bookmarks) and then directly afterwards opened on the user machine for further user input. The error message is quite precise but the workaround has eluded me. Word crashes a moment or two after it has been opened on the user machine with the below exception details. Problem signature: Problem Event Name: APPCRASH Application Name: WINWORD.EXE Application Version: 14.0.6129.5000 Application Timestamp: 5082f354 Fault Module Name: wwlib.dll Fault Module Version: 14.0.6129.5000 Fault Module Timestamp: 5082f3dc Exception Code: c0000005 Exception Offset: 000eed32 OS Version: 6.1.7601.2.1.0.16.7 Locale ID: 1030 Additional information about the problem: LCID: 1030 skulcid: 1030 Sometimes one can run the exact same scenario 50 times before experiencing a crash, other times only a few times. We have tried using different versions of the Word format as well as renaming the databound file after saving so that the file being opened on the user machine is different. Principally Word should never crash but perhaps there is some workaround that can make Word not crash. Googling for a solution there appears to be multiple things that can trigger this bug.

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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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• Error on LDAP Login - xsessions error - Session lasted less than 10 seconds

  - by Draineh

  I have two machines both running CentOS 5.6 64bit. On the LDAP Machine it has a DHCP, BIND and OpenLDAP Server. LDAP is correctly configured and users can authenticate against it. Using root I configure machine 2 to use LDAP for authentication and when trying to log in it successfully authenticates against a saved user on the LDAP Server but produces the following errors and then throws me back to the login screen. I can still sign in as root and use the machine as normal. The syslog doesn't show any errors and I disabled SELinux to see if it was interfering. The error; Your session only lasted less than 10 seconds. If you have not lgoged out yourself, this could mean that there is some installation problem or that you may be out of diskspace. Try logging in with one of the failsafe sessions to see if you can fix this problem. There is then a tickbox to view the contents of ~/.xsessions-errors which contains; /etc/gdm/PreSession/Default: Registering your session with utmp /etc/gdm/PreSession/Default: running: /usr/bin/sessreg -a -u /var/run/utmp -x "/var/gdm:0:Xservers" -h "" -l ":0" "admin" localuser:admin being added to access control list No profile for user 'admin' found /bin/sh: /usr/bin/dbus-launch --exit-with-session /etc/X11/Xinit/Xclients: No such file or directory /bin/sh: line 0: exec: /usr/bin/dbus-launch --exit-with-session /etc/X11/xinit/Xclients: cannot execute: No such file or directory Apologies if someone notices something isn't spelt quite right or doesn't sound right, the system never actually creates or saves this file so I have had to type it across from the screen. Through the authentication panel in CentOS on the client I have set it to create the users home directory on login. The user is being correctly authenticated and the /home/admin folder has been created but this error would suggest it has not? The client is a new install on an 80gb hard drive so there is well over 80% of the drive still available. Thanks for any suggestions or pointers.

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