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• Hosting provider that allows you to host your own VM image?

  - by Timo Geusch

  I've already looked at the 'Best Hosted VM Provider' question and checked the recommendations there, but I seem to have slightly odd requirements. Basically, I am looking for a host that allows me to host a VM image I supply (FreeBSD, which most of the suggested hosters don't support, they only seem to support various Linuxes) instead of one of their standard images. I'm a long time BSD user and have had colo BSD servers in the past so I'm pretty sure that i don't need much in the way of software support, but I'd basically like to run my server on managed hardware without having to rent the whole server. For the usage I have that would way OTT as we're talking a couple of small apps with very few users, a couple of blogs and (most importantly) email hosting for about 6-10 domains with moderate traffic levels. Oh, and reliability trumps cost to a certain extent.

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• How to troubleshoot a service failure?

  - by AngryHacker

  I get a GPF dialog box out of the blue fairly often (like about 2 hours after I turn on the computer). It basically says that svchost.exe had a failure... (see the corresponding Event Log entry below). Event Type: Error Event Source: Application Error Event Category: (100) Event ID: 1000 Date: 5/18/2010 Time: 7:41:16 PM User: N/A Computer: DKHA-IPSA Description: Faulting application svchost.exe, version 5.1.2600.5512, faulting module ole32.dll, version 5.1.2600.5512, fault address 0x0004eaa9. Shortly after this error pops up, the computer pretty much grinds to a halt (e.g. some UI elements on the desktop simply do not respond). And I have to do a hard reboot. How do I troubleshoot this type of thing? P.S. The PC has all the latest patches and nothing is missing in the Device Manager.

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• How to enable printer settings over Jetdirect on HP 4100N

  - by zsero

  I have a HP 4100N printer and I am using it over network. Previously I was able to access the printer settings over internet, but now the only thing visible is Device Info and Networking. I can connect to the web server and I can set all the network related settings, but that's not what I want. There should be a supplies, config, print info, etc. page, what are not visible now. Can you tell me what setting should I set to enable this printer config page on the webserver? The printer is a HP 4100N and the network card is J4169A (Jetdirect 610n).

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• Convert RAID-0 to RAID-1 on HP ML350G6 with P410i zero memory

  - by JLe

  I have an HP ML350 G6 with a P410i zero memory RAID controller. As far as I can understand that means I can't expand a current single drive "RAID-0" configuration to a RAID-1 using the HP Offline ACU without installing memory and BBWC. Is that correct? What makes me think about this is the fact that expanding RAID-0 to RAID-1 should be pretty similar to replacing a failed drive in an already existing RAID-1? So then why can't I expand without memory and BBWC? Is my best option otherwise to (i) use Ghost to capture the disk, create a new RAID-1 with the existing drive and a new one or (ii) buy memory+BBWC and do it online? Thanks

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• iptables rule to submit packets matching a specific negative rule

  - by Aditya Sehgal

  I am using netfilter_queue to pick up certain packets from the kernel and do some processing on them. To, the netfilter queue, I need all packets from a particular source except UDP packets with src port 2152 & dst port 2152. I try to add the iptable rule as iptables -A OUTPUT ! s 192.168.0.3 ! -p udp ! --sport 2905 ! --dport 2905 -j NFQUEUE --queue-num 0 iptables throw up an error of Invalid Argument. Querying dmesg, I see the following error print ip_tables: udp match: only valid for protocol 17 I have tried the following variation with the same error thrown. iptables -A OUTPUT ! s 192.168.0.3 ! -p udp --sport 2905 --dport 2905 -j NFQUEUE --queue-num 0 Can you please advise on the correct usage of the iptables command for my case.

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• What is the difference between /sbin/nologin and /bin/false?

  - by Michael Hampton

  I have often heard it recommended that a user account should be disabled by setting its shell to /bin/false. But, on my existing Linux systems, I see that a great number of existing accounts (all of them service accounts) have a shell of /sbin/nologin instead. I see from the man page that /sbin/nologin prints a message to the user saying the account is disabled, and then exits. Presumably /bin/false would not print anything. I also see that /sbin/nologin is listed in /etc/shells, while /bin/false is not. The man page says that FTP will disable access for users with a shell not listed in /etc/shells and implies that other programs may do the same. Does that mean that somebody could FTP in with an account that has /sbin/nologin as its shell? What is the difference here? Which one of these should I use to disable a user account, and in what circumstances? What other effects does a listing in /etc/shells have?

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• Very Large number of connections in TIME_WAIT state; Server is slow, ipconntrac

  - by Sparsh Gupta

  I have a nginx server with load balancing and reverse proxy. Right now its behing another nginx but very soon I plan to make it front, where it will receive TCP connections from clients directly at a rate of 500req/second I am having some big troubles with the server. I have pasted my configurations here and I am kinda sure that the problem is with ipconntrac and similar things which are alient to me http://paste.org/pastebin/view/28543 root@load_balancer:/proc/sys/net/ipv4# netstat -an|awk '/tcp/ {print $6}'|sort|uniq -c 67 CLOSING 727 ESTABLISHED 173 FIN_WAIT1 183 FIN_WAIT2 19 LAST_ACK 5 LISTEN 447 SYN_RECV 1 SYN_SENT 27970 TIME_WAIT Its a ubuntu machine with mainly nginx (load balancer and reverse proxy) installed. It surely isnt great. Can you help me understand whats going on and how can I fix it. This is my live server and I am sure its in a bad shape right now. Any document or commands to fix this, or settings I should make to make this better and reduce time wait and fin_wait1/2 better would be awesome.

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• RDP for High DPI Monitors?

  - by Joey

  A client is having some problems with their laptop. They use RDP to remote into their work PC, but the laptop they are using is a small 13" Sony Vaio laptop, but with 1920x1080 resolution. Everything is pretty small on the laptop anyway, but the problem is much worse after connecting with RDP, where everything is almost unreadable. I have done the obvious with changing the resolution on the server, the RDP size, forced scaling on the terminal server etc, but nothing has worked. Something else which I would normally do is change the laptop resolution to something a little lower, but the laptop only has 2 resolution settings, the big one, and a 1024x768 (wrong ratio). Any ideas?

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• Checking for orphaned snapshots - ESXi5

  - by Tim Alexander

  So we had some issues with our passive mail node over the weekend doing vmtools updates and to resolve a problem we had to revert to a snapshot and then reseed all the databases across. All in all everything seemed fine, the server works and CCR copy status is running fine. I used the "Delete All" option this morning to remove the snapshot and the process according to vCenter has completed with no errors and no "Needs Consolidation" flag. This all seems fine until I check the Datastore that holds the VM on our SAN and I can clearly see snapshots that are pretty big [see attached image]. These do not seem to be changing size and the data modified is around the time the works were started for the vmtools update. Does this possibly mean that at some stage, possibly during reversion or hard resetting of the VM, that they have become orphaned? Are there any methods to check orphaned status of snapshots? We are running ESXi5.0 Update 1 with storage provide by an EMC SAN. Enterprise plus is the license level.

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• Computer randomly shuts down with a fading alarm power button and CD drive

  - by Shad

  I am currently experiencing something very very odd. Having build my PC myself, I have never had any issues (or anything heat related). A few moments ago my computer shut down very randomly and everything goes blank, when I looked down on my case's power button it was fading on and off in such way I've had never seen before. I noticed the CD drive all of a sudden also started blinking randomly. What do you guys think this problem is related to? It is definitely not a overheating issue and I am pretty sure my 600 watt power supply didn't blow because right now I am able to turn it on and boot up the PC but 20 seconds later it shuts down (sometimes doesn't shut down for 2 minutes). I have no idea what this is... My specs are (built by myself): i5 3570k (unoverclocked) GTX 560ti Asrock Z77 Pro4-M motherboard 8GB Vengeance RAM 600W Corsair power supply 500GB of Seagate HD Case: Corsair Carbide 300R

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• Outlook collapses IMAP folders by default

  - by Aron Rotteveel

  I recently switched my mail account from POP3 to IMAP and created server-side rules to help me manage my mail better. I use Outlook 2007 as a mail client. For some reason, it seems then ever since I switched to IMAP, all my folders are collapsed by default. Since my folder tree goes down 4 levels, this is pretty annoying. I don't know any better than Outlook remembering my folder preferences, but it seems to forget them as soon as I close the program now. Is there any cause for this, and more importantly, is there a known fix for this problem?

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• Directly paste clipboard image into gmail message

  - by Frank Meulenaar

  I would like to be able to directly paste my clipboard image into a Gmail message. I could then just do alt-print screen, go to Gmail compose and press ctrl-v to embed a screenshot, for instance. I'm not talking about embedding a image from disk into my email; that's easily done. I want to skip the step where I have to save it to disk first. Eudora/Thunderbird support this. There's a program that does this, it's at picturepaste.com, but it's paid (and and the website uses Javascript for no obvious reasons). You can see the demo movie there if it's not clear what I would like. I would like to find a free alternative, or make one myself, but I have no clue how picturepaste works.

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• Which hardware changes require operating system reinstallation?

  - by Mark

  I'm about to upgrade my computer but might keep some parts. Just wandering what I would have to keep to prevent me having to reinstall my OSs, at the moment I have a dual boot setup with ubuntu and windows 7. I'm pretty sure you can't just take your hard drive with the OS on it and put it into a different box and keep going (can you?) but I know you can change the graphics cards, secondary hard drives and ram with out a problem. So what is it that you can't change? The CPU? Motherboard? Thanks for any replies

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• Remote Desktop Client in Windows 7 Full Screen Issue

  - by Langdon

  I'm running Windows 7 Home Premium on a new laptop and I'm having one of the most annoying issues with the RDP client (mstsc.exe). If I restore the full screen RDP window, I lose the ability to go back to full screen. The only way I can get it back is by running a new instance of mstsc, setting the option back to full screen, and connecting again. I don't have this problem on any other machine (granted, this is the only copy of Home Premium I have). Is this a known issue? Is there a patch/fix? It's pretty obnoxious, I'm having to train myself to not use the restore button and only minimize it (which limits uses).

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• Aircrack-ng, is it illegal?

  - by Jasen

  I just found out about this linux-based network toolset called aircrack-ng, and its pretty interesting, and I'm learning how to use it. But it just occured to me, that like a lot of linux programs, they're developed in foreign countries, with different laws. I did do a google search, and the only thing in regards to what i am asking that pops up is a question on another site. So, my question is, is it illegal in America, specifically Ohio, to use this program? I mean i know it has a legitimate purpose, but so does hemp. Also, sorry if this is the wrong place for this question, but I'm not exactly sure where it should go.

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• Outlook receives winmail.txt attachment instead of Excel, PowerPoint or Word attachments from Lotus

  - by Philippe

  Ok so the title pretty much says it all. We are offering a Hosted Exchange solution for our customer. Everything is working fine except for one customer complaining that he is receiving winmail.dat or winmail.txt attachments instead of the actual Word Excel or PowerPoint attachments he should be receiving, only when these messages come from a specific European senders, that is using Lotus Notes. I know that usually the problem is coming from Outlook senders to other mail clients, but this is not the first they inform me of this but I can't find anything on the matter so far. Has anyone ever gotten and solved this problem? If not, does anyone have any idea regarding this? I had solved this problem a few months ago, by upgrading Outlook to SP2 and then uninstalling it using the Service Pack removing tool of Microsoft. It seems that only the latest SP1 version could work but not the SP2. The problem is that now nothing is working at all. Thank you for your help, Philippe

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• How can I insert bullet point data into Microsoft Excel spreadsheet?

  - by REACHUS

  Sometimes when I make some research, I gather data that should be presented in bullet points, preferably in a single cell (as it is kind of data I would not process in any way in the future). I am looking for a way to make it readable for other people using the spreadsheet (on the screen, as well as when they print the spreadsheet). I would like to make something like that: ———————————————————— | * bullet point 1 | | * bullet point 2 | | * bullet point 3 | ———————————————————— So far the only solution is to edit something presented above in a text editor and then paste it to Excel (as I cannot really make bullet points in a single cell). Is there any better solution?

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• USB cable model for Kodak EasyShare Z740

  - by Robert Munteanu

  I've lost the original USB cable for my Kodak EasyShare Z740, and I can't figure out which model I should replace it with. I did not find the original parts, as the camera is pretty old. I did find the cable on the Kodak site, but I I've tried both mini-USB and micro-USB and neither fit. Alternatively, bonus points for pointing out a dealer in Bucharest, Romania which has the original part. N.B. I do use a card reader now, but I find it more convenient to use the cable.

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• Hot video card in server

  - by DougN

  Not sure if this belongs here or Superuser (I looked at Superuser -- suspect there are more hardware gurus here). I have a server that sits in a cabinet. It's connected to a small screen that is normally off. However, the video card is running at about 210 F all the time. The rest of the PC is pretty cool (getting temps from SpeedFan). Any thoughts on a way to quiet/calm/cool the video card since it's never really doing anything anyway? I'm usually logged out on the server, and no screen saver defined. Windows is already set to turn off the screen for power saving at 5 minutes.

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• Why does restarting the modem fix latency?

  - by Giovanni Galbo

  In the last few days I've noticed poor internet performance. Today I ran a speed test and the results were abysmal... 10mb down and 0.18mb up (which really hurt, because I was trying to RDC from another location). I pay for 30mb down and 5mb up. Latency was at 128ms. Before calling my ISP to give them a verbal lashing, I unplugged the modem and plugged it back in. I pretty much got top speed after doing that (with a latency of 7ms). I'm the type of guy that likes to know what goes on under the hood. So what's the deal? What mysterious powers does restarting give to my modem?

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• Suppress EXT3-fs warning on mount

  - by STM

  I am familiar with output suppress on Unix machines, ie: cat /file/that/doesnt/exist > /dev/null 2>& However I can't seem to suppress the output of mount when an ext3 filesystem is mounted for the nth time, and it recommends an fsck. As it happens, fscks are run regularly by another machine, so these warning messages are needlessly interrupting the flow of output to my pretty bash script. These are the errors: # mount -t ext3 /dev/sda1 /mnt > /dev/null 2>& kjournald starting. Commit interval 5 seconds EXT3-fs warning: maximal mount count reached, running e2fsck is recommended EXT3 FS 2.4-0.9.19, 19 August 2002 on sd(8,1), internal journal EXT3-fs: mounted filesystem with ordered data mode. Can anyone shed some light on this? I'm clearly blocking both fd's, but somehow output is still getting through. This is GNU Bash v2.05a

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• SNMP keeps crashing

  - by jldugger

  We're using OpsView/Nagios to monitor our servers. We've added the SNMP service to all our servers and deployed the configuration via GPO, but one win2k3 server seems to have a problem; it crashes pretty regularly. The event log carries messages like: Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7034 Date: 6/11/2009 Time: 7:11:49 PM User: N/A Computer: HOSTNNAME Description: The SNMP Service service terminated unexpectedly. It has done this 2 time(s). and also Event Type: Error Event Source: Application Error Event Category: (100) Event ID: 1000 Date: 6/11/2009 Time: 7:11:18 PM User: N/A Computer: HOSTNAME Description: Faulting application snmp.exe, version 5.2.3790.3959, faulting module ntdll.dll, version 5.2.3790.3959, fault address 0x000417af. Now, I could probably set it to simply restart on crash in perpetuity, but I think it's better to fix problems like this. Is this a known problem? If not, what should I do to diagnose it?

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• Virtual Desktop Provisioning - Vmware View 5.2 Maintenance Questions

  - by Lee J. DeAngelis

  Currently running an environment of about 400 VMware View 5.2 virtual Desktops. The environment runs pretty efficiently but we sometimes run into problems with certain pools from time to time. Just recently we had a pool that was causing high write latency when users logged in. It just happened all of a sudden and had been working fine for weeks. On a hunch we completely broke down the pool and re-provisioned it from a new image. This corrected the problem. In fact every real issue we've had so far was fixed by a recompose or complete break down and re-provisioning of one pool or another.Our environment consists of Cisco UCS and Netapp 3240s using flashcache running VMware View 5.2. My questions are: What are some maintenance best practices other VDI admins are using? How often are you recomposing? rebalancing? re-provisioning? How long should you keep base image snapshots around?

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• Could my 64-bit server be somehow identifying itself as a 32-bit server?

  - by Deane

  Has anyone ever heard of a 64-bit OS identifying itself as a 32-bit OS? We have a Windows Server 2008 R2 x64 development server. We've been trying to activate it with a product key from MSDN, but it keeps telling us the the key is invalid. I've opened a ticket with MSDN for this. Then something odd happened -- I tried to install a 64-bit version of SQL Server 2005. After it extracted, we got this message: This version of hotfix.exe is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program... Now, we're pretty sure this is a 64-bit OS. Computer Properties says: System Type: 64-bit Operating System Also, we have both a "Program Files" and a "Program Files (x64)" directory. I don't know how the product key activator or the SQL install program attempts to divine the type of OS, but could it be...wrong?

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• use i3 tiling window manager in RHEL 5

  - by Peter Hamilton

  For some time I have been using the i3 tiling window manager in Ubuntu. However at my new company we use RHEL5. I would dearly love to port over all my configs but Im having some trouble... An initial (naive) approach seems that a simple yum install i3 yields no results for i3. I then used some additional rpm repos by following instructions to add the EPEL RPM Repositories but it seems i3 is only bundled for RHEL = 6. Damn. I'm fairly sure that this must be possible but I'm pretty new to the Redhat scene and am not sure how to approach this problem. Any pointers would be gratefully received!

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