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• linux log memory hogging issue

  - by helpmhost

  Hi, We have a VPS server (it's using Virtuozzo). On a few occasions now, our VPS memory was fully used up and no new connections could be made to the server on SSH, SMTP, or POP. The only thing that works is connecting to the web service. Luckily, plesk is running on the VPS and we have been able to reboot it through plesk (as well as see that the RAM is 100% used). I would like to find what process is causing this. I have a feeling it's MySQL, but don't really know. Is there some sort of logging I could implement that would help me find out what was the cause of this next time it happens? Thanks.

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• Best practices for re-IP'ing / migrating servers and applications

  - by warren

  Some of this question would be highly application-specific, but what approaches do you take when looking to migrate applications from one server/platform to another and servers form one network segment to another? For applications that can't be re-IP'd (many exist in this category), the general answer is to nuke and pave (or extend a clusterable application, then remove the segment that needs to be "moved"). For "normal" applications (httpd, mail, directory services, etc), what are the checks ou perform before, during, and after a move to ensure the health of the migrated app/server? An example with Apache: backup httpd conf directory change httpd conf files to use new IP address of server change (or add) IP of server restart Apache verify web server still serves pages reboot server verify environment comes back up healthy

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• Alternative to Windows Home Server (WHS) backups

  - by Adam Tegen

  Since Microsoft announced the end of life for WHS, are there any alternatives? Specifically, I am interested in recovering from a catastrophic disk failure with WHS. For example, this is my ideal scenario when a desktop hard-drive fails (has a bad virus, etc): Install a disk of the same size or greater Boot the desktop with the Recovery Disc Point the recovery application at the WHS Pick the machine, the drive(s) and the date of the backup Have a couple beers Reboot to a working machine as if nothing happened. I would need to slap multiple disks in the machine without raid. It sounds like LVM will work here. It would be nice, but not required to have de-duplication of files when multiple machines are backed up. (Single Instance Storage)

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• IP KVM switch, or serial console box for remote admin?

  - by grahzny

  We have a small server farm (11 now, may add more in the future) of HP Proliant DL160 G6s. They all run either Linux (server only, no X11) or VMware ESX. We had intended to get models with iLO, in case BIOS-level remote admin became an issue, but that didn't happen. I had an IP KVM switch recommended to me (along with some sort of Remote Reboot hardware.) I've since realized that none of our machines need GUI administration, so perhaps a serial console switch would be a cheaper and more appropriate option. Something like this: http://www.kvm-switches-online.com/serimux-cs-32.html Do you folks have an opinions on which way is a better choice? Should we go for the ease of setup (plug and go, instead of turning on the feature in the BIOS and making sure the serial settings are correct) and the flexibility of an IP KVM switch even with the extra cost? Or is a serial console switch just fine?

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• Amazon EBS root volume persistence

  - by hipplar

  When I launch a new Windows EC2 instance I am given a 30 gig root EBS volume. I'm trying to make sure I understand the EBS terminology and want to make sure I understand this correctly: Q: What happens to my data when a system terminates? The data stored on a local instance store will persist only as long as that instance is alive. However, data that is stored on an Amazon EBS volume will persist independently of the life of the instance. What exactly does "instance is alive" mean? If I write files to the root volume and reboot the instance will the files remain? Or do I physically have to terminate (delete) the instance for the root volume to go away? Thanks

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• Windows 2008 R2 software RAID 1 (disk failure)

  - by thj

  I've bought myself a new server that I'm going to use for some various software developing projects. I have a simple question about Windows 2008 R2 x64 software raid. What if disk 1 fails? Will it automatically swap over to disk 2? And boot up on disk 2 after reboot? Or how do you handle this? Should I use some tools for monitoring my RAID 1? So if it fails or if there are any errors, I will receive an email. Do you know of a tool capable of this? Or can I do it by having a tool monitoring the event viewer? Finally, I'm looking for a tool to test the speed (read/write) of my harddrives, before and after introducing RAID 1. What's the best free tool out there?

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• Setting the Timezone with an automated script

  - by Tom

  I'm writing scripts to automate setting up new slicehost installations. In a perfect world, after I started the script, it would just run, with no attention from me. I have succeeded, with one exception. How do I set the timezone, in a permanent (survive reboot) and sane (adjust for standard and daylight savings time, so no just forcing the date) ... manner that doesn't require input from me? Currently, I'm using dpkg-reconfigure tzdata This doesn't seem to have any way to force parameters into it. It demands user input. EDIT: I'm editing here, rather than commenting, since comments don't seem to allow code blocks. Here's the actual code I ended up with, based on Rudedog's comment below. I also noticed that this doesn't update /etc/timezone. I'm not certain who uses that, but in case anybody does, I'm setting that too. TIMEZONE="America/Los_Angeles" echo $TIMEZONE > /etc/timezone cp /usr/share/zoneinfo/${TIMEZONE} /etc/localtime # This sets the time

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• Windows7 x64 clipboard failure

  - by Konoplianko

  Hi. I'm using windows 7 x64 and i need to work with citrix client. Unfortunately my clipboard stops working after 5-10 minutes with citrix apps. I can't copy/paste anything. But on citrix clipboard is still working. Problem disappears after rebooting computer. But it's takes too much time. Is there any way to restart clipboard process or fix this problem without rebooting ? Thanks ! UPD.1 Copy/Paste is broken only on my local computer. It means that when I'm pressing ctrl+c (also when doing the same with mouse) ctrl+v pastes nothing (in GUI menu it's highlighted with gray - disabled). Occasionally it repairs itself when I'm starting rebooting: nsd.exe crashes with some exception, reboot stops and then it works again. But I'm still not sure that problem is in nsd.exe (Lotus notes)

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• Data Recovery needed with a Sector Zero problem on a HDD

  - by Jay Robins

  Left my computer (running XP) copying files to an external drive. Came back a few hours later, and the laptop was pretty hot and had frozen (Ironic aint it). Forced a reboot, and the laptop HDD hasnt worked since. Set it up in an external enclosure, but XP cant mount the HDD to a drive letter, but is able to recognize the manufacturer and drive size (Hitachi-320GB). No noise or rattling when the drive is spinning, but I cant get anything off of it, since i cant mount it, or see much of anything. Computer repair shop ran some software tests and says it came back with a "Zero Sector bad" message, and need to send it to a professional data recovery service. Any other options or ideas, before I have to spend thousands of dollars to recover my data? Any help would be GREATLY appreciated!!! I'm desperate and a poor student! Thanks in Advance, -Jay

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• Strange behavior in networking between 64bit and 32bit

  - by Rob

  I'm having a strange behavior about my network setup. I have 2 laptops, one (Lenovo) with Windows 7 Professional 64-bit and another (Acer) with Windows 7 Ultimate 32-bit and a wireless router. I'm connecting these 2 using the router but with a strange behavior. I can ping both machines, as well as the router, but when i try to access their shared folders (\\computer_name\shared_folder) the connection starts to fail and I need to reboot both machines to get it working again. But this only happens sometimes, sometimes it works.

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• Windows update install hangs

  - by Richo

  I'm trying to deploy .Net 3.5 on an XP home SP2 machine for a customer. The install fails, with an error about WIC. Trying to install WIC on its own gave an error about not being able to verify the application, because the cryptographic service wasn't running. A reboot got that service running, but now the install just hangs on the "inspecting your current configuration" Task manager reports that DrWatson is doing a lot (constantly using 10% of processor time) but beyond that I don't know how to instrument what a Windows machine is doing, has anyone seen this before?

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• MacBook Pro screen goes dark

  - by Mike M

  I've had my MacBook Pro for two years now...no problems (it has had 3rd party RAM from the get go). Today, I'm copying a particularly large VM from an External disk drive to local MacBook disk. It has about 3GB to go and I take off to do some other things and when I come back my screen is "dark". The computer is still on but I can't see anything. I forced a reboot by holding down the power button, it starts up with the "chimes", but still no screen. I've done this several times. Any ideas? Do you think the hard disk activity caused it to get too hot?

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• How to move unseen windows => Cannot access my application after switching monitors

  - by Stephane Rolland

  I switch monitors really often: At work I have a very poor computer, and gpu too, which is bad at keeping its configuration, resolution and monitor position between each reboot. Both monitor are different size and resolution. When doing that I often have applications that were on one of the monitors that remember their last position opened... so now they are unseen, at screen coordinates I cannot access. I know there is a shortcut that can access the move functionnality of a window. Could you remind it to me. Do you have other trick to center all opened windows into the visible screens ?

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• Can the Windows 8.1 update be applied without local terminal?

  - by Ben Voigt

  It is possible to access the Windows Store from a remote desktop session and initiate the Windows 8.1 Update from the Windows Store, but the update hangs after the first reboot, likely waiting for the user to accept the license check. This leaves the computer unusable remotely. Is there a way to pre-accept the license terms so that the update can complete autonomously? Perhaps an UNATTEND.XML such as would be used for an unattended clean install? Failing that, is there a way to connect with remote desktop during that phase of the install (it appears to be GUI-mode setup running with the usual Windows kernel and full OS)?

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• Virtual box - How to add disks and move var, opt and home to them?

  - by Jarrod Roberson

  I created a CentOS 5.6 Guest OS Virtual Machine. I made the first disk 10GB, I am rapidly outgrowing it. It was suggested that I make disks for my /var, /opt and /home directories and move them so I can better manage the disks for backing up and what not. This sounds like a good idea. I know how to create the disks in Virtual Box. I have dug around Google and the internet in general and all my attempts at doing this have failed. Snapshots are awesome! I can get the drives fdisked, and I have had limited success mounting them to /mnt/var, /mnt/home and /mnt/opt, but even in single user mode ( init 1 ) I can't get the entire contents of the directories to move over, and then the machine won't reboot correctly. cd /var cp * -ax /mnt/var The /var directory in particular is not wanting to move everything to the new location. How do I format, mount and move the /var, /opt and /home to my new disks?

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• How to reconnect to Remote Session in a script?

  - by Lukasz

  Hello, I need to persist a Remote desktop connection across a reboot of a Terminal server. I'm thinking that it would be something like a scheduled task that would run periodically and check the running state of the session and restart it if it's down. BTW, I did check the "Reconnect..." checkbox on the advanced tab of the connection options, but it still goes down everytime we restart the terminal server. Does anyone have the script that would accomplish the above in a scheduled task, or perhaps another solution?

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• How to add a new entry to fstab?

  - by Roei

  I mount a device mount /dev/xvdf /mnt/mongo and verify the mount using df-h: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.9G 955M 6.9G 12% / tmpfs 299M 44K 299M 1% /dev/shm /dev/xvdf 20G 589M 19G 4% /mnt/mongo But now I'm trying to figure out how to make it auto mount on boot. I understand I need to add a new entry to /etc/fstab, so I perform: $ sed -i '$ a\/dev/xvdf /mnt/mongo xfs defaults 1 1' /etc/fstab But, after reboot, it seems that the auto mount didn't work. The device didn't appear in the df -h list. Should I not use the sed to add the entry? Is the entry I entered incorrect?

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• Resize Ubuntu Linux system to smaller disk inside VMware ESXi

  - by mlambie

  I have several Ubuntu Linux virtual machines running on VMware ESXi hosts that have all been allocated disks much larger than their required capacity. As space is now becoming an issue on our SAN, I'd like to investigate downsizing the allocated disk space on these machines. All systems will be completely backed up imaged before I begin making changes, and I will always retain a pristine backup in case the partition resizing does not work. Is there an easier way than the following procedure, or is their a better solution entirely? Shutdown and assign a second disk to the virtual machine Boot using the SystemRescueCD Use GParted to resize the original (source) partition, making it smaller Clone the new, smaller partition to the second disk Shutdown and remove initial disk from the virtual machine Reboot and force fsck to check the filesystem

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• Another installation is in progress

  - by Steven

  Why I try to install any program I see "Another installation is in progress. You must complete that installation before continuing this one." error. Googled the web and found that solution would be to delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress registry key and reboot. That didn't help me unfortunately. When I open "Services" mmc snapin it shows that "Windows Installer" service is "Started", but "Start/Stop/Pause/Restart" buttons are grayed (the interesting thing is that startup type = "Manual", so I don't really know how to explain that I already have 2 instances of msiexec.exe in memory and one instance is consuming 50Mb of memory. Looks like there's a serious issue with my installer service - is there any way to fix it (please do mind - I can't install anything!) Any help would be greatly appreciated.

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• Wireless Network Disappearing From Available Networks (Windows 7)

  - by PeteDaMeat

  I have been using Windows 7 with a BT Voyager wireless adapter to connect to my home wireless network for around the last 6 months or so and until recently have experienced no problems. However, over the last couple of days Windows has been unable to connect to the network and the network name is no longer visible in the list of available wireless networks. The only way I have got round the problem is to reboot the NetGear router and to change the SSID to a network name which has not already been used. I do not believe the problem is with the router as my mobile phone can connect to it without any problems. The BT Voyager wireless adapter detects all other available networks so I presume this is a Windows 7 issue as it seems to occur when the PC is rebooted. This problen has happened twice in the last 2 days and is becoming extremely annoying. Does anyone have any suggestions?

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• Detecting/Reactivating serial port that becomes inactive on Ubuntu Linux 10.10

  - by Tom

  I am using a usb2serial port to communicate with some old equipment (using my code built upon the boost asio library - I think my code is fine because it works almost all of the time). Every so often (maybe once every few days) the communication stops with my device with no error at all - the device just does not respond. I then restart my computer and everything is fine again. Does anyone know where I can start to analyse this problem? My serial port loads up fine (in /dev/ttyUSB0) and the boost library does not throw an error. The device just does not respond. If I restart the device no change - only when I restart my pc does it make a difference. I have also tried unplugging and replugging the usb connector. Does anyone know what gets cleared in the reboot (w.r.t the serial device) or what I can probe when the problem happens again (rather than just restarting with hope)

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• Can't create a registry key under Eventlog and I am in administrators group

  - by Tony_Henrich

  I am troubleshooting an installer problem where it's giving an error writing to a registry key. So when I use the Registry Editor (regedit) to create the same key under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog, I get a "Cannot create key: Error writing to the registry". Looking at the permissions, administrators have full access and I am a member of that group. I can create entries in other areas in the registry. When I try to take ownership, I see my name already listed. But then I get an error "Unable to set new owner on Eventlog. Insufficient system resources exist to complete the requested service". I tried after a new reboot. I turned off my firewall (Comodo). Why can't I create a new key when I am an admin and permissions indicate I have full control?

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• Finding source of leaking active memory on Mac OS Lion

  - by Tim Kemp

  My activity monitor shows 6GB of active RAM usage: Yet my Real Memory column shows nothing like that amount: (There's another screenful below that, all smaller.) Backing that up, the output from this command (which sums up memory usage of every running process): ps -axm -o "rss,comm" | awk 'BEGIN { s=0;}; {s=s+$1;}; END { printf("%.2f GB\n", (s/1024.0/1024));}' Gives 4.09GB, so it looks to me like 2GB has leaked. I see much wider ranges sometimes, perhaps 2 or 3GB from the ps command and as much as 7 or 8GB of Active usage reported by Activity Monitor. I've tried quitting everything and logging my user out and back in again, but the Active usage is still far higher than the RAM reported by ps and by each process to Activity Monitor. This 2GB of active RAM is basically unrecoverable unless I reboot. Is there any way to a) detect what's leaking and b) get it back? Thanks

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• Opening Office 2007 files using a Vista or Win7 client on a server 2008 file share causes lockups an

  - by DrZaiusApeLord

  I think this mostly happens when trying to open files opened by other users. In the XP/2003 days you would get some kind of warning about a locked/read only file. With 7/Vista/2008 I'm just seeing clients hang (Word just sits there) and if I go into the file share and attempt to right-click on the file, explorer hangs for several minutes. I tried disabling AV on the file server as well as locally. No luck. I've read that SMB2.0 might be the culprit here, but even testing that solution means disabling it on both the client and server, and requires a server reboot. Does this sound like an SMB2 issue? The server is 2008 SP1. The clients are Win7 vanilla and Vista SP2 with all the current updates. Office 2007 SP2 with all updates. Thanks.

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• Parallels 5: upgrade from Vista to Win 7: annoying deadlock

  - by nobody

  What I have: Parallels 5, Vista installed. Trying to upgrade to Win 7. I have the Win7 .iso mounted as a DVD to my virtual machine. When I start the machine from this DVD, and attempt the upgrade, I'm told (paraphrased) "You booted from DVD. Don't do this. Reboot, then insert the DVD, commence the upgrade from there." But when I try that, the upgrade keeps failing because "There is not enough disk space". I've proven this is a red herring of an error message; the real problem is the installer can't find -any- disk drives. When I instead choose the "Advanced" install, and I am prompted to choose the disk drive, there aren't any to choose from. How do unblock this deadlock?

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