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• Does anyone still use Iometer?

  - by Brian T Hannan

  "Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It is used as a benchmark and troubleshooting tool and is easily configured to replicate the behaviour of many popular applications." link text Does anyone still use this tool? It seems helpful, but I'm not sure if it's for the thing I am trying to work on. I am trying create a benchmark computer performance test that can be run before and after a Windows Optimization program does its stuff (ex: PC Optimizer Pro or CCleaner). I want to be able to make a quick statement like CCleaner makes the computer run 50% faster or something along those lines. Are there any newer tools like this one?

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• Microsoft Outlook tips and tricks for improving user experience?

  - by Roee Adler

  I'm one of those heavy Microsoft Outlook users, currently working on the 2007 version. God knows this tool is heavy and may impose problems. I wondered what the Super User crowd has to suggest in order to improve the usage experience. Several suggestions of my own: Always work in cached mode (Tools--Account Settings--Change--Use Cached Exchange Mode) Use Outlook's local archiving capabilities Use Outlook's RSS reader - it's simple and allows offline access to your feeds If you have e-mail subscriptions to magazines, blogs, etc. - create a subdirectory to keep them, and a rule to automatically move them there when they arrive (one rule per subscription, based on the sender e-mail.) You can also share suggestions that require configuration of Exchange Server, for those of us who can make bring them to their IT managers. What are your suggestions? PS: "Use Gmail" is not an accepted answer, some of us don't control what email system we use...

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• How do http proxies determine https traffic with a single port?

  - by badunk

  If a proxy receives the tcp packet, then the destination ip address and port are that of the proxy. In that case, I imagine the only way a proxy can still resolve the intended destination is either through routing the source ip address/port or through the host field in the http header. Is this correct? In both Fiddler and Charles http proxies, I noticed that the tool accepts both http and https connections through a single port that you can specify. What do these tools do to tell the difference between the two types of connections?

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• Sftp via shell - how it is possible

  - by Tomasz Zielinski

  (Moved from StackOverflow: http://stackoverflow.com/questions/4589725/sftp-via-shell-how-it-is-possible) How is it possible for tools like http://mysecureshell.sourceforge.net/ to provide SFTP access by merely specifying them as shell by typing: usermod -s /bin/MySecureShell myuser ? I'm on Debian Lenny, with default sshd/OpenSSH. Is this e.g. a feature of SSH protocol that allows user shell to handle sftp commands? I can't wrap my head around this because usually OpenSSH needs sftp-server module (or the internal one in newer versions) - and this makes me think that sftp commands don't even hit the shell and are handled earlier or by different code path..

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• Monitoring over Time with Nagios: How?

  - by David

  Nagios in its standard usage monitors with point-in-time checks: either something is - or is not - true. Other tools like SGI's PCP, HP's MeasureWare, and SEC provide monitoring over time - monitoring things like average disk access time over the last five minutes, or other similar items. Is there anything like this for Nagios? I'm already running NDOUtils, which seems like a natural source for such data. I'd like to have something that would monitor and fire off alarms based on a time-based check using historical data. Is there anything like this for Nagios?

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• How do I mklink junction + move content from C:\Program Files to D:\Program Files?

  - by Matt

  I have a few applications that absolutely refuse to install into anything but C:\Program Files or C:\Program Files(x86). Changing the registry keys for default install folders doesn't seem to provide any satisfaction and so now I'm wondering about throwing a NTFS junction in there to force these pesky applications to cooperate. There are files currently in use within Windows so it's quite likely I am not going to be able to do this within the active OS. Is there some bootable Windows 7 system tools that would allow me to make this happen? Seems I will need the ability to copy files (with permissions!) from one drive to another, as well as make the junction for Windows.

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• Hyper-V Ubuntu 10.04, Filesystem suddenly becomes Read-Only?

  - by Daniel Upton

  We are running a Ubuntu 10.04 VM on a Hyper-V system, The VM is dedicated to running one of our web applications. We have enabled the Hyper-V drivers in /etc/initramfs-tools/modules like so: hv_vmbus hv_storvsc hv_blkvsc hv_netvsc And updated the kernel image like so: $ update-initramfs -u And all was good... until.. This morning i got a support request that our web application was throwing an error 500, so i checked the logs and nothing was there. Then I remembered that I had seen this on another of our ubuntu servers so I... $ touch foo.txt And my suspicions were confirmed: touch: cannot touch `foo.txt': Read-only file system Why is the filesystem randomly becoming readonly? Is this only in Ubuntu on HV? Is it a problem on RedHat or Cent?

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• Problem with Xen, xvda and sda

  - by Javier J. Salmeron Garcia

  I am creating a cloud for my university using Eucalyptus with Xen (PCs have Debian Squeeze 64 bit installed). I have a problem with the following guest configuration: # # Configuration file for the Xen instance evenmorefinalfoo, created # by xen-tools 4.2 on Thu May 26 11:03:06 2011. # # # Kernel + memory size # kernel = '/boot/vmlinuz-2.6.32-5-xen-amd64' ramdisk = '/boot/initrd.img-2.6.32-5-xen-amd64' vcpus = '1' memory = '128' # # Disk device(s). # root = '/dev/sda2 ro' disk = [ 'file:/home/xen/domains/evenmorefinalfoo/disk.img,sda2,w', 'file:/home/xen/domains/evenmorefinalfoo/swap.img,sda1,w', ] As you can see, the disk and swap images are meant to be mounted on sda1 and sda2. However, when I start the guest, these are mounted on xvda1 xvda2, provoking an error. Is there anything that I can do about that? It seems like it is a Xen error. Thank you in advance,

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• Shared FC LVM VG with LVs for each KVM VM. Clvm required?

  - by Cocoabean

  I have 2 virtual machine hosts running Ubuntu 12.04 and KVM managed with libvirt. They are both connected to the same VG which is a LUN on my SAN over FC. I provision LVs on this shared VG for each VM. I don't think I need HA or failover, but I do want live migration between the hosts. Do I need clvm in this case? As long as I don't try to start the same VM on each host should this work? Clvm requires lots of overhead with clustering tools that I don't think I need. I can deal with manually restarting VMs on other hosts in the event of a hardware failure.

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• Apache randomly timing out

  - by Zaid

  I've been wrestling with this problem for few days now. Apache works fine. Then suddenly starts timing out. There is nothing in the error log. Few more things: - I've gone so far as to reinstall the box. - The codebase has not been touched in months. - I've done the speech test so I know it's not a bandwidth overload problem - Restart apache does not necessarily fix the issue, even temporarily (only thing that does is random attempts) If you can guide me to tools that can help me figure this out or if you know any specifics I should see, appreciate it.

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• What is needed to invoke LibreOffice running just the macro without the GUI?

  - by C.W.Holeman II

  Invoking LibreOffice and running a macro via the GUI works as expected producing three HTML files, one for each spreadsheet page: $ libreoffice x.ods Tools>Macros>Run Macros... Library: LibreOffice Macros> ExportSheetsToHTML Macro Names: exportsheetstohtml.js Run When attempting to invoke just the macro it just hangs: $ libreoffice\ -invisible\ -nofirststartwizard\ -headless\ -norestore\ x.ods "macro:///LibreOffice Macros.ExportSheetsToHTML.exportsheetstohtml.js" $ ps x | grep libreoffice 11286 pts/0 S+ 0:00 /bin/sh /opt/libreoffice/program/soffice -invisible -nofirststartwizard -headless -norestore x.ods macro:///LibreOffice Macros.ExportSheetsToHTML.exportsheetstohtml.js 11296 pts/0 Sl+ 0:58 /opt/libreoffice/program/soffice.bin -invisible -nofirststartwizard -headless -norestore x.ods macro:///LibreOffice Macros.ExportSheetsToHTML.exportsheetstohtml.js Version info: Linux road 2.6.32-28-generic #55-Ubuntu SMP Mon Jan 10 21:21:01 UTC 2011 i686 GNU/Linux LibreOffice 3.3.0 OOO330m19 (Build:6) tag libreoffice-3.3.0.4

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• testing ssl cert for smtps => "secure connection could not be established with this website"

  - by cc young

  testing ssl cert on server using a web service. https, imaps and pop3s all check, but smtps yields the message "we advise you not to submit any confidential or personal data to this website because a secure connection could not be established with this website." running postfix tls logging: connect from s097.networking4all.com[213.249.64.242] lost connection after UNKNOWN from s097.networking4all.com[213.249.64.242] disconnect from s097.networking4all.com[213.249.64.242] these work correctly: telnet mydomain.net 587 openssl s_client -starttls smtp -crlf -connect mydomain.net:587 but cannot get email using ssl to log into either 587 or 564 - get same "UNKNOWN" problem. email smtp w/o ssh works fine. the test site is http://www.networking4all.com/en/support/tools/site+check/

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• On Windows, what filename extensions denote an executable?

  - by Ken

  On Windows, *.exe, *.bat, *.cmd, and *.com all represent programs or shell scripts that can be run, simply by double-clicking them. Are there any other filename extensions that indicate a file is executable? EDIT: When I jump into a new project (or back into an old project!), one of the common things I want to do when looking around is to find out what tools there are. On Unix (which I've used for decades), there's an execute bit, so this is as simple as: find . -executable -type f I figured that on Windows, which seems to have a much more complex mechanism for "is this executable (and how do I execute it)", there would be a relatively small number of file name extensions which would serve roughly the same purpose. For my current project, *.exe *.bat *.cmd is almost certainly sufficient, but I figured I'd ask if there was an authoritative list.

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• Comparing zip/compression utilities

  - by Grant Palin

  I've used WinZip, WinRar, and 7zip for packaging and compression. I know the first two are payware, and the last is open source. Despite that, they all seem to serve the same overall purpose. Are there any other distinguishing characteristics that make any of the options stand out? I'm not really looking for a "best" package, but would like to know of noteworthy differences between the common tools. For what it's worth, I do seem to like WinRar. Not sure why, but there it is. If it matters, I'm using Windows 7.

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• linux/shell: change a file's modify timestamp relatively?

  - by index

  My Canon camera produces files like IMG_1234.JPG and MVI_1234.AVI. It also timestamps those files. Unfortunately during a trip to another timezone several cameras were used, one of which did not have the correct time zone set - meta data mess.. Now I would like to correct this. Proposed algorithm: 1 read file's modify date 2 add delta, i.e. hhmmss (preferred: change timezone) 3 write new timestamp Unless someone knows a tool or a combination of tools that do the trick directly, maybe one could simplify the calculation using epoch time (seconds since ..) and whip up a shell script. Any help appreciated!

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• Write permission when mounting Windows shares from Ubuntu

  - by Ola Tuvesson

  I think I'm close to having my dev environment set up exactly the way I want, but one final snag remains. I'm running VirtualBox on a Windows 7 64bit host, with my dev enviroment inside a Ubuntu 12.04 guest. I want to keep the files for my projects on the host filesystem - partly so I can access them when the Ubuntu guest is not running, but also so I can use Tortoise and other Windows based tools (cough Photoshop), and it also eases my backup scheme somewhat. So I've got a folder "Rails" on my NTFS drive, which I've shared from the host with a user specifically created for the Ubuntu guest. The mount point has been set up and an entry added to fstab (cifs), using a credentials file and the options iocharset=utf8,file_mode=0777,dir_mode=07??77 This mounts fine and my Ubuntu user has both read and write permissions to the contents, but when I try to start my Rails app I get permission errors on any files the app needs to write to (e.g. the log file). What gives?

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• Looking for a free or open-source burner emulator [closed]

  - by Jared Harley

  Possible Duplicate: Virtual CDR driver I am looking for a free or open-source virtual CD/DVD emulator to run in a Windows environment. What I want is similar to what SlySoft's Virtual Clone Drive or Daemon Tools provides, but the emulated drive needs to be a burner of some type. The burner should be able to save disc images (.iso, .ccd, etc) to my harddrive - basically, the same as if I burned the files to a CD-R, and then ripped them back to a disc image. I have already looked around some and come across 2 - DVD neXt COPY iTurns and NoteBurner M4P. Both of these programs create a virtual CD-RW drive, but they are integrated into their product (for burning from iTunes to create mp3 files) and cannot create disc images. I am currently writing a piece of software that will have the capability to burn disc images onto CDs/DVDs, and I don't want to end up with a 100 coasters while I'm testing my software. Anyone have any ideas? Related ServerFault queston: Create netbook recovery image without DVD burner (virtual burner?)

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• Visio 2010 Reverse Engineer Oracle

  - by digitall

  I have used Visio 2007 in the past to reverse engineer Oracle databases to get a flow scheme. I believe all Office 2007 products were x86 as well which is where I suspect my issue currently lies. I have since upgraded to Visio 2010 x64 and when I go to reverse engineer something from Oracle it shows up under Installed Visio Drivers but I can't seem to create a data source using it. My assumption here is it is because Oracle doesn't play nicely with x64 and with Visio being compiled as x64 I don't even get the option to use it. Has anyone done this with Visio 2010 x64 and Oracle yet? Or are there other tools you would recommend to reverse engineer and get a model such as the one generated by Visio?

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• I've created a software RAID on SUSE EL 10 and now I need to monitor it.......

  - by Thomas B.

  I have created a Software Raid using the yast2 GUI on SUSE ES 10/11. The raid works great and it's a raid 5. I have 5 Drives they are cheap 2GB Cases that have 2 - 1TB Drives in each case (Serial ATA Drives) and I connect them in via Esata to the motherboard. The problem I have as this is "cheap" storage when of the the 5 drives goes out on the RAID I seem to have no logs of any issues and it get's harder and harder to write to it until it dies. I use SAMBA to mount the 4TB parition to my PC's in my home on a GIG network. My question is this, are there any good (Free) tools in Linux to monitor a raid or the drives on the raid to detect any problems??? I haven't found any yet and was just wondering if some exist.

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• Un-table a cell range in Excel 2007

  - by Joe

  In Excel 2007, if you highlight a block of cells and then "Format as Table", it doesn't just apply colors and formatting, it somehow marks those cells as being a table. Now I want to get rid of the table, but keep all the cells (i.e. keep the data). So I tried clearing the table style and formatting, but Excel still recognizes those cells as being a table. I can tell because: When I select a cell that was in the table, Excel still displays the "Table Tools / Design" tab I cannot merge cells that were in the table <- this is what's annoying me So, how do I un-table those cells? I want to keep all the cell data and formatting, but have Excel not recognize them as a table.

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• Sftp via shell - how is it possible?

  - by Tomasz Zielinski

  (Moved from StackOverflow: http://stackoverflow.com/questions/4589725/sftp-via-shell-how-it-is-possible) How is it possible for tools like http://mysecureshell.sourceforge.net/ to provide SFTP access by merely specifying them as shell by typing: usermod -s /bin/MySecureShell myuser ? I'm on Debian Lenny, with default sshd/OpenSSH. Is this e.g. a feature of SSH protocol that allows user shell to handle sftp commands? I can't wrap my head around this because usually OpenSSH needs sftp-server module (or the internal one in newer versions) - and this makes me think that sftp commands don't even hit the shell and are handled earlier or by different code path..

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• What are the mandatory Linux kernel modules to run inside of ESXi

  - by Marcin

  I'm used to rolling my own kernels for servers, as it nicely minimizes the number of exploits (and the resulting patches) to take care of. In a traditional (bare metal) world, the whole process is about knowing what you have (hardware), and what you need (Ethernet, IPv4, iptables, etc.) In a virtualized environment, some things stay the same (still need Ethernet and IPv4), some things go away (power management), and then there are some new needs (vxnet3, or vmware-tools, even though that's compiled outside of the kernel). So my question mostly concerns itself with the last two categories: what can I remove completely, and what new stuff do I want? For example, what IO scheduler do I want, if all my disk operations are going through another filesystem/scheduler/cache to get to the virtual disk? Do I need hyper-threading enabled, or is the VM going to show them to me anyway as a CPU anyway? Do I need Large Receive Offload turned on, or is that something that the hypervisor's network drivers are going to do for me?

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• Any program or editor in windows 7 to run ".md" files

  - by Anmol Saraf

  I understand that '.md' is an extension for markdown format. While installing 'Grunt' from GitHub I see a lot of .md extension files inside node_module/grunt/docs folder. As per my understanding these files are supported by GitHub for documentation kind of things if I am not wrong. My question here is - Are there any editors/tools or programs available for Windows 7 where I can see these .md files executing ? When I try to open any of these file inside my text editor it displays in raw format with all '#" etc. keywords. I want to see the formatted version of these files so that without an internet connection also I can navigate the documentation on my machine. Thanks for helping !!

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• DNS protocol message example

  - by virtual-lab

  hello there, I am trying to figure out how to send out DNS messages from an application socket adapter to a DNSBL. I spent the last two days understanding the basics, including experimenting with WireShark to catch an example of message exchanged. Now I would like to query the DNS without using dig or host command (I'm using Ubuntu); how can I perform this action at low level, without the help of these tools in wrapping the request in a proper DNS message format? How the message should be post it? Hex or String? Thanks in advance for any help. Regards Alessandro Ilardo

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• How to partition hard drive that has no os installed?

  - by Sarang Patil

  I have 500 GB hard drive. The laptop came with windows 7 pre installed in it. Now as I am installing Windows 8, I have deleted the C drive. So I have 460 GB free unused space where I can install Windows 8. But the Windows 8 installer does not give me any option to partition the 460 GB. The only option available are "Refresh" and "Load driver" or just selecting the 460 GB HDD and installing Windows 8 in it. So how can I partition this 460 GB before I install Windows 8 in it? Edit: Can you suggest me some tools that partition the hard drive and RUN independently (as I do not have any OS installed) from a USB ?

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