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• How to install and Configure MTA on Linux [closed]

  - by Umair Mustafa

  I need to know which MTA's is better and simple to handle and configure in linux. As I need to run a script that will send me the output of that command whenever it will run using cron. Ok the case is this. Every day I have to manually check the Disk space of server which are more than 30 which is headache and have to document that. So I will simply add the follwing command DF- H and the output of this command should be send on my email. So now IF u got the story then tell me what MTA is better sendmail, postfix and some instructions on HOW TO INSTALL and CONFIGURE it. And after configuring the How do I add the DF -H so that it will start seniding me the output on my email. Thanks in advance.

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• How to display certain lines from a text file in Linux?

  - by Boaz

  Hi, I guess everyone knows the useful Linux cmd line utilities head and tail. Head allows you to print the first X lines of a file, tail does the same but prints the end of the file. What is a good command to print the middle of a file? something like middle --start 10000000 --count 20 (print the 10,000,000th till th 10,000,010th lines). I'm looking for something that will deal with large files efficiently. I tried tail -n 10000000 | head 10 and it's horrifically slow. Thanks, Boaz

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• How Do I Change the Windows7 LAN Proxy Config from the Command Line

  - by david.barkhuizen

  In Windows7, Is it possible to define/change the proxy config from the command line ? So, using the gui, I would go: Start Control Panel Network and Internet Internet Options Connections LAN Settings and then - enable/disable the proxy - define IP:port of proxy server But I would like to rather do this from the command line (so that I can run the command from a batch-file with a shortcut key - enabling me to switch proxy configs using a short-cut, rather than having to wade through the MS wizard). I've looked at using netsh.exe to change the settings for WinHTTP, but this seems to be thr wrong thing to do, as the WinHTTP setting do not appear to be related to the LAN settings. Much appreciated folks.

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• Unable to boot from SATA II and vista

  - by pencilslate

  Trying to use a SATA II hard drive on toshiba satellite notebook. The hard drive has vista installed on it from another notebook. After inserting the hard drive, the boot starts.. shows "Microsoft windows" the progress bar, and reboots, in a loop. The existing hard drive is SATA with xp on it. The replacement one is SATA II with vista on it. I wanna troubleshoot. But, don't know where to start. Any help is much appreciated!!

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• How to fix Windows 2008 R2 BOOTMGR is missing

  - by RichardTheKiwi

  BOOTMGR IS MISSING PRESS CTRL+ALT+DEL TO RESTART Note: This is a VM on VMWare ESX server, but that should not matter I put in the 2008 R2 x64 install dvd and can get to recovery, but it lists no Operating Systems. Clicking on Next brings me to +=========================== System Recovery Options +=========================== Choose a recovery tool Operating system: Unknown or (Unknown) Local Disk ..... Command Prompt I start the command prompt, go to C:\ and perform a dir /a Apart from files I put there myself, these are showing $Recycle.Bin Documents and Settings [C:\Users] Program Files Program Files (x86) ProgramData Recovery System Volume Information Temp Users Windows Where to go next? Is it like the NTLDR problem with Windows 2003 where I can just drop a file in there and it will be hunky dory again?

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• Excel Matching problem with logic expression

  - by abelenky

  I have a block of data that represents the steps in a process and the possible errors: ProcessStep Status FeesPaid OK FormRecvd OK RoleAssigned OK CheckedIn Not Checked In. ReadyToStart Not Ready for Start I want to find the first Status that is not "OK". I have attempted this: =Match("<>""OK""", StatusRange, 0) which is supposed to return the index of the first element in the range that is NOT-EQUAL (<) to "OK" But this doesn't work, instead returning #N/A. I expect it to return 4 (index #4, in a 1-based index, representing that CheckedIn is the first non-OK element) Any ideas how to do this?

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• Blackberry product.dll is missing error

  - by JosephStyons

  I have a new Blackberry 9630. I downloaded this software for it. When I click on the newly installed "Desktop Manager", I get this error: --------------------------- DesktopMgr.exe - System Error --------------------------- The program can't start because product.dll is missing from your computer. Try reinstalling the program to fix this problem. --------------------------- OK --------------------------- If I manually search for that file across my entire c:\ drive, it is not there. I am using Windows 7. What can I do to fix this problem?

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• Lossless cutting of MPEG TS files in Windows

  - by Sebastian P.R. Gingter

  I have several HD video files in transport stream (.ts) format, recorded with my satellite receiver. I want to cut them, as in simply remove a few minutes from the beginning, the end and sometimes a few minutes in the middle of it (remove early start of recordings, late ends and, for some seldom files, the ads). What is a good, ideally but not necessarily free, software with a GUI to do this? Best would be something where you could select points on a timeline and simply cut the elements out. As a resulting file, just the same .ts format would be great, but I could also live with putting the video contents into another container, as long as the video is NOT re-encoded / transcoded. The files have additional audio streams and subtitles. These should be retained in the process. My OS is Windows.

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• Vim lint check - only show message if there's an error

  - by GorillaSandwich

  I have this line in my .vimrc, which means "when I save a .rb file, run it through ruby -c" (the ruby interpreter's error checking). autocmd BufWritePost *.rb !ruby -c <afile> When I save that file, I always see output at the bottom of the screen, so I get used to it and start ignoring it. What I want is to only see output if there are errors. I can see that when there are errors, after it says what they are, at the bottom, it says "shell returned 1." How can I modify this line so that it only shows a message if the shell returns 1? Is there a way to conditionally surpress output from a shell command run in vim?

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• Transmission-daemon not picking up on watch directory

  - by Mild Fuzz

  Trying to get my transmission-daemon to pick up files from a dropbox folder, to make remote starting easier (it's a headless system). As far as I can tell, the settings.json file is as expected, but none of the files I place in the folder get picked up. I have checked that dropbox is syncing correctly. Here is the whole settings.json file, but the relevant lines are included below: "watch-dir": "/home/john/Dropbox/torrents", "watch-dir-enabled": true Update It appears to be a permissions issue. From /var/log/syslog: Unable to watch "/home/john/Dropbox/torrents": Permission denied (watch.c:79) I have tried stopping the daemon - sudo service transmission-daemon stop - changing permissions of folder using chown - sudo chown -R john /home/john/Dropbox/torrents - restarting daemon - sudo service transmission-daemon start Same result, however Update 2 Permissions for the folder are: drwsrwsrwx 2 john debian-transmission 4096 2012-04-09 19:40

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• Keepalived takes several minutes to recover in a particular situation

  - by NathanE

  I've setup Keepalived for a master-slave style virtual IP and it seems to work well. Both are hosted in almost identical VMs. If I "pause" the VM that is running the Master. The Slave will take over, as expected, almost instantly. However if I then "unpause" the VM that runs the Master. The virtual IP will stop responding the pings. And it takes a good 4 or 5 minutes for it to start pinging again. It seems to be getting desynchronised due to the nature of the way I'm testing it (by pausing/unpausing the VMs). I admit that pausing and unpausing VMs is a slightly dodgy way to test this. But it has raised a concern for me that there could be other scenarios that cause the same undesirable behaviour. Is this expected / by design? Is there anything I can do to the config to improve it? Thanks.

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• HPC Cluster planning workflow?

  - by Veronica

  After three days of intensive Google searching, I have not found any high-level workflow of how to build a low profile - cheap - computing cluster (we are not interested in HA yet). This is just a front-end plus a node for now. We want to start small with rockscluster, provide a web-based server for offering services, and then add nodes as our budget increases. We're small company, so we haven't enough human resources to implement it smoothly. Here are some facts about our environment: Our hardware is not constant (we will add nodes). Our workload will vary (in the order from 200Mb - 1Tb) Our software will change (scientific applications for data mining) Do you know any visual workflow, worksheet, chart, describing the general necessary steps to begin our cluster planning?

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• VPS for Glassfish

  - by Harry Pham

  Our small startup company plan to deploy a web application on Glassfish, I and wonder if some of the experience user out there can answer me couple question. When I shopping for server, I usually look at RAM amount, as GF does required good amount of RAM to run, below are the two sites with significant price different for the same amount of RAM. I wonder why?? Godaddy: http://www.godaddy.com/hosting/virtual-dedicated-servers.aspx?ci=9013 Versus http://entic.net/Servers Does below plan from Godaddy consider good to run GF application. OS: Linux CentOS • RAM: 4 GB • Storage: 60 GB • Bandwidth: 2,000 GB/mo Our web application is a social network, expected to have 2000-4000 users to start with

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• Task Manager does not show memory usage

  - by Robin

  I just noticed this yesterday. I selected different memory columns, none of them worked, and I've tried showing processes from all users. I'm using Win 7. It doesn't slow down my computer or does anything else. I just want to know why and how to fix it. Could anyone help me on this? Thank you cannot post pix :( it is like this: only shows K, without actual number Image Name--------User Name----CPU----Memory (Private Working Set)------Description System -----------SYSTEM ------01-------------------------------K-------NT Kernel &system Smss.exe--------- SYSTEM -----00-------------------------------K-------Win Session Manager Wininit.exe------ SYSTEM ------00-------------------------------K-------Win Start-up Applic It's pretty much the same as http://www.sevenforums.com/general-discussion/56891-my-task-manager-doesnt-show-ram-usage-each-program.html that is the only one i found on google.

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• Cannot login to XP SP3 in VMWarePlayer virtual machine in safe mode

  - by Alper

  Hello, Here is my setup Host OS: XP SP3 Guest OS: XP SP3 (using VMWare) I checked the /SAFEBOOT option in System Config utility in guest for troubleshooting. Now the guest OS boots up in Safe Mode but I cannot login with my user id/password. Here is what I tried: [domainName]\[userid] for user name = Login Fails Administrator with blank password = Login fails Safe Mode with Networking = Login fails Safe Mode with Command Prompt = Login fails Last Known Good Configuration = starts in safe mode, login fails Start Windows Normally = starts in safe mode, login fails Don't have cd to get to the recovery console Any ideas?

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• Is there an audio recording application/tool that has Tivo-like functionality?

  - by Bob

  I do a lot of live speech recording that requires me to quickly jump back and then transcribe a particular piece of the audio, then go back to recording again, while still maintaining the full audio file. So Far I've done this by splitting the audio and running one line to a recorder (for the whole audio), and one to my computer. Then I use something like Audacity to record, and then stop/go back whenever I hear something worth transcribing. This requires me to stop the recording, then start it up again and I end up missing chunks of the speech I'm listening to. Is there a tool that would let me rewind, then listen again and continue listening at a buffered distance from the audio recording, the way Tivo does with television shows?

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• Which tool / technology: System management for databases and dependent services

  - by Filburt

  I'm looking for advice on how to enable our team to take down and re-start our company systems for maintainance purposes. The scenario includes several Oracle db machines several MS SQL Server machines with multiple instances windows services (IIS etc.) BizTalk EAI solution Apache and Tomcat instances lots of scheduled tasks on win2003 and win2008 machines (physical and virtual). The main focus is on capture all dependencies between said databases and services and tasks connecting to them. At the moment an enterprise class solution is not an option. We are considering developing a solution driven by PowerShell scripts but I hope for some more suggestions.

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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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• Online meetings: any recommendations?

  - by T Pops

  There's a few times at work when I have to host a meeting and physical presence is impossible. For these situations I've been using Acrobat ConnectNow. Specifically because it's free. Are there any other recommendations out there? Free or not. What are the pros and cons? I'll start a compiled list of apps from the answers here right now. Anyone with Wiki editing privileges is welcome to edit this: Paid GoTo Meeting Webex TeamViewer (free for non-commercial) Groove (bundled with MS Office) Free Yugma Yuuguu SharedView TinyChat Other Options CoPilot

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• Photoshop causing other programs not receive ESC key

  - by user46935

  When I run Photoshop CS4 on Windows 7, other running programs don't receive the ESC key (I noticed in PuTTY and Total Commander's Lister). When I close Photoshop, they start receiving the ESC key again. I tried multiple keyboard layouts, no change. Photoshop is an out-of-box install, no settings changed I exported the list of keybindings from Photoshop (ctrl-alt-shift-k) and ESC isn't used in any combination Why is this? Is there any way to disable or bypass this so that I could use other programs normally?

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• Computer freezes for 2+ seconds, mouse still moves

  - by xsaero00

  I have this problem on my workstation. The computer would effectively freeze for 2-5 seconds for no apparent reason, then continue as normal. While frozen the mouse would still be movable, but only on one of screens in my multi-screen setup. What can be the likely cause. System: CPU: i7-920 Memory: 12G of Patriot DDR3, 6 modules OS: SLED 11, Suse Linux Enterprise Desktop, using Gnome Main board: Asus P6T Video: two Nvidia 9500GT connected to three displays I am using memory at recommended settings of 8-8-8-1333. It has an XMP profile. Th CPU is a bit overclocked to 3.3 GHz, but my cooling more than allows for it. I ran the computer with all overclocks off and lower memory speed but the issue was still there. Any ideas? Where should I start looking?

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• Failed to configure CA certificate chain

  - by kron

  Hi All, I'm trying to setup SSL on fedora with apache. In my vhost... SSLCertificateFile /your/path/to/crt.crt SSLCertificateKeyFile /your/path/to/key.key SSLCertificateChainFile /your/path/to/DigiCertCA.crt I had it working fine with a self signed key, but can't get it to work with the DigiCertCA crt. When I run service httpd restart It fails to start. This is what I get in the logs... [Sat Jan 29 07:57:13 2011] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suex$ [Sat Jan 29 07:57:13 2011] [error] Failed to configure CA certificate chain! Any assistance would be really appreciated! Thanks

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• How to generate a 8 bit per sample wav audio file in VLC

  - by Ahmed safan

  I'm using the following vlc command line to extract first 5 minutes of audio from video file "-I dummy -vvv --no-sout-video --sout-audio --no-sout-rtp-sap --no-sout-standard-sap --ttl=1 --sout-transcode-threads=5 --sout-transcode-high-priority --sout-keep --sout #transcode{acodec=s16l,channels=1,samplerate=8000,ab=64}:std{mux=wav,access=file,dst="c:\dest.wav"} "c:\originalvideo.mpg" --start-time=0 --stop-time=300 vlc://quit"; if ab=64 =64 k bits per second and samples per second=8 k samples then bits per sample=64/8=8 bits per sample but the problem is that the output file always has samples of 16 bits per sample. I know that sample can contain bits from 8 , 16, 24 to 32 bits per sample. i want to get 8 bits per sample file how can this be done ?

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• Hybrid drive not booting faster than a normal HD

  - by Nigel Trotter

  I have used Windows 7 to create an image of my existing standard 160GB HD and copied this image back to a bigger 500GB Seagate hybrid drive. After copying the image to the hybrid I had to resize the partition, which was fine but after rebooting a few times to "teach" the hybrid, I have no increase in boot speed. It still takes 20-25 seconds to close down and then over a minute to start up. Is this something to do with the way the image lays itself on the drive indiscriminately? Do I need to load the OS on the drive from scratch to get the benefits? My PC with an i5 processor, is using AHCI mode.

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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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