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• How to troubleshoot if a zip file is valid or if it is big file size to be unzipped ?

  - by mireille raad

  Hello , I am trying to unzip a file with the size of 2GB I am getting the following error : unzip CLTE_C_08.zip Archive: CLTE_C_08.zip End-of-central-directory signature not found. Either this file is not a zipfile, or it constitutes one disk of a multi-part archive. In the latter case the central directory and zipfile comment will be found on the last disk(s) of this archive. unzip: cannot find zipfile directory in one of CLTE_C_08.zip or CLTE_C_08.zip.zip, and cannot find CLTE_C_08.zip.ZIP, period. After some googling, some people say that this error is because the file is too big, others say because file is corrupt, others say that it could be a not unix archive. So my question , how to find out if file is valid archive file on my Centos and what is the command/trick to uncompress big files ( if any ) Thanks in advance :)

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• What applications is NTFS preferable for? [closed]

  - by javano

  When building a new server I prefer to deploy Linux as my OS of choice. This gives me the luxury of being able to choose from various file systems (amongst other aspects), and I will choose a different FS for different servers, depending on what they will be used for. With Windows OS variants you can only use NTFS. Have any benchmarks or tests been performed that have shown NTFS to be a preferable choice for a given scenario or application (apart from just "running Windows" because it has to be on NTFS). To clarify what I mean; I might use filesystem X for large transactional storage volumes, but filesystem Y for front end web app servers. If I had a multi-platform application to deploy that (let's pretend) was available on Mac/Win/Lin, is there any type of application or scenario that would benefit from being on NTFS?

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• Can't see progress of rolling back SPID with KILL WITH STATUSONLY

  - by BradC

  I have a SPID on SQL 2005 that shows in Activity Monitor as "ROLLBACK" mode (because a transaction log filled up, not because it was manually killed). I tried to see how much time it has left to roll back with a KILL 115 WITH STATUSONLY but it just said "Status report cannot be obtained. Rollback operation for Process ID 115 is not in progress." Can I safely issue a "KILL 115" so that I can see the rollback status? Does this actually do anything on a spid currently in rollback?

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• Can't open Control Panel or IE

  - by Josh

  I have a XP computer where when ever I try to open Control Panel nothing happens, nothing flashes on the screen. Same thing with Internet Explorer. I've scanned the computer with Malwarebytes and Avast, Malwaresbytes found some Adware which it removed without problems. Avast found nothing. I looked at the running processes with Process Explorer, nothing malicious running. And looked at a Process Monitor output when I tried to run IE, nothing obviously wrong. The process just decides to exit. What can I try next? I would suspect corrupt IE install but Control Panel doesn't work either. UPDATE: Nether work in Safe Mode under the user account. (only 1 user on the computer) But in Safe Mode, under the built in Administrator account, they work. So what ever is broken, is only broken in the one account. Anything under the HKCU registry key that could break this?

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• Find out what resource is triggering bad password attempt?

  - by Craig Tataryn

  Background: Have a problem at work where I am constantly being locked out of my computer. We are in an environment that has a Domain Controller and we use Active Directory for authentication. By going through my normal workflow while on the phone with Desktop Support we were able to track the bad password attempts that were causing the lockouts to an application: "Eclipse". This is the application I use to do software development. I immediately thought it was a cached password for our SVN server that's the culprit, however the desktop support person couldn't tell me which resource the password attempt was being made against (i.e. which URL for instance). Question: Is there a way that I can monitor bad authentication requests made by an application on my desktop and find out what resource they are attempting it against?

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• design question for transportation agency/workflow system

  - by George2

  I am designing a transportation agency/workflow system, and it including 3 types of people, customer who requests to transport some stuff, drivers who deliver the stuff, and truck manager who manages transport source/destination truck coordination and communicates/organizes drivers. The system is expected to be a web site, and 3 kinds of people could use the web site to submit request, accept request, monitor status of specific stuff transportation, etc. The web site is more like an open agency or a workflow system. I am wondering whether there are any existing technologies, tools or projects (better to be open source, but not a must) which I could build my application faster based on? I prefer to use .Net technologies, but not a must. Thanks in advance!

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• Protected flash video (requires HAL) on Gentoo

  - by Mala

  I am unable to play "protected" flash video, such as Amazon Prime Instant Video. From what I've read and uncovered, this seems to be due to a lack of HAL being installed on my computer. Confirmation that it is required for protected video can be seen towards the beginning of http://helpx.adobe.com/x-productkb/multi/flash-player-11-problems-playing.html However, hal is not in the gentoo portage tree, and in any case has been deprecated and replaced by udev. How can I go about getting Amazon Prime Instant Video to work again? I was considering grabbing the source from http://www.freedesktop.org/wiki/Software/hal but the links there won't load, and trying to install it from old ebuilds or from overlays which claim to still support it (e.g. kde-sunset) result in a compilation error: In file included from addon-generic-backlight.c:38:0: /usr/include/glib-2.0/glib/gmain.h:21:2: error: #error "Only <glib.h> can be included directly." Has anyone else solved this issue?

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• Hide Win 8.1 "tip" about "Switch between apps"?

  - by Carl R

  I've just installed Win8.1 and I'm trying to set up IIS. When I open Add remove programs from the start menu I get the pc-settings app. In the pc-settings app I get a "tooltip" or whatever we should call it, that hints me to "Switch between apps" by swiping from the edge. Well fine, but I don't want to do that right now, and I can't get that tip to dissapear. The tip lingers on even into Visual Studio, covering my code. I can't swipe because I don't have a touch screen, and also I'm on a multimonitor system that shows this tip in the middle of the screen. Here's a screenshot for you, where I put the web browser slightly over the left monitor. So, besides rebooting, how am I supposed to kill this very informative tip? EDIT When I kill the app by alt-f4 it dissapears right until I open the settings app again, then it's back. What I'm asking about is how to dismiss items like this in general.

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• Windows Server 2008 is stuck at "configuring updates - stage 3 of 3 - 0% complete"

  - by Chris

  This has happened the last two times I've done updates to this system, and I really have no idea what is going on. It is installing a only a month's worth of updates. It only responds to ping and no services are up, so I can't view the system remotely (I have to hook up a monitor to see this message). In the past I've just restarted the system at this point and it eventually finishes updating. I want to know what I can do to avoid this situation, how to diagnose what is going on, and how to get any kind of remote access during the updates. Edit: I can start the machine in safe mode (where I did nothing but backup some files). I restarted and it no longer tries to do a windows update, just goes to the desktop where everything seems extremely broken. I can click on some things, but not launch most programs. I guess all I can do at this point is do a system restore or something.

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• Windows 7 Remote Desktop with dual monitors wont wake up.

  - by dev5

  I run Windows 7 64bit with dual monitors at work. If i connect from home using remote desktop, the next morning i cannot wake up the monitors. The computer seems to be fine (i can connect again from another pc using remote desktop) but monitor will stay blank. I've tried unplugging the monitors and reconnecting them but still frustrating. The only solution is to restart the machine. Some specs if it helps. HP 3000 Pro Windows 7 Pro 64 bit ATI Radeon HD 4550 Samsung SyncMaster 2243 x2

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• How can I port forward over a VPN NAT?

  - by Charlie

  I have a multi-site VPN currently running with pfSense boxes and currently using OpenVPN. However I can change the OS and VPN type if need be. The main router has a 10.13.0.0/16 subnet and a series of public IPs For example, a branch has a 10.12.1.0/24 subnet How can I port forward NAT traffic on a public IP of the main router to a server behind the NAT of the second? So for instance port 95 on a public IP assigned to the main router forwards to 10.12.1.102 on the other router. Is this even possible? Currently my setup works great but only for intertnal traffic

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• Why is my email server in AT&T's blacklist?

  - by legoscia

  I just got this bounce message: <¦¦¦¦¦¦¦¦@att.net>: host scc-mailrelay.att.net[204.127.208.75] said: 521-88.208.246.34 blocked by sbc:blacklist.mailrelay.att.net. 521 DNSRBL: Blocked for abuse. See http://att.net/blocks (in reply to MAIL FROM command) So I'm trying to figure out why our server ended up on their blacklist. The web page link doesn't tell me why, as far as I can see. From a few multi-RBL tools I conclude that our IP is only on the collateral damage lists of uceprotect.net (you can be exempt from that with a paid subscription), and I dearly hope that AT&T doesn't use that. From the mail server logs I see that an email to another @att.net address went through two days ago without being blocked. Does anyone have any ideas how I can find out what went wrong?

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• Reccomendation for tuning 100's of SQL Databases

  - by wayne

  I'm running several SQL servers, each running a few hundred multi-gig databases for customers. They are all setup homogeneously as far as the schemas are concerned, however customer usages of the data differ quite a lot from database to database. What would be the best way to auto-index/profile/tune this large amount of databases? As there are at least 600 or more catalogs I cant have someone manually profile, and index as required by each databases usage patterns. I'm currently running SQL 2005 but will be moving to 2008, so solutions that work with either are fine.

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• Nagios dropping ICMP packets

  - by Ankh2054

  I am running a Nagios server on vmware 4.0 and every now and again during the day it alerts that some of servers cannot be reached via ICMP, clearly staging that a certain percentage of packets send are lost. This does not happen to all servers. I know the servers are actually up, because I have done a parallel test from another windows box, just using simple ping and no packets were lost. I also now from the way we monitor out switch that no packets were lost on those particular ports. Could anyone suggest a way to troubelshoot this further ? AT present this points to the nagios server itself loosing packets. thanks

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• What is the formula for HughesNet FAP calculation?

  - by JohnFx

  I am somewhat frustrated with the only FAP monitor I have found on the net and discovered because it relies on a running count of bandwidth usage which (1) requires a service in the background; and (2) Tends to get inaccurate over time. Given that there is a diagnostics page on the firmware of the modem that tells the exact usage per hour, I was planning on writing a more accurate version with a better UI. However, it appears that HughesNet keeps the exact formula for calculating whether you are in FAP a secret. I have no idea why they wouldn't be more forthcoming with this information. Wondering if anyone out in SU-land had done some trial and error testing to reverse engineer the formula or had some inside knowledge to share.

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• Finding Locked Out Users

  - by Bart Silverstrim

  Active Directory up to 2008 network (our servers are a mix of 2008, 2003...) I'm looking for a quick way to query AD to find out what users are locked out, preferably from a batch or script file, to monitor for possible issues with either user accounts being attacked by an automated attack or just anomalies in the network. I've Googled and my Google-fu has failed; I found a query off Microsoft's own knowledgebase that cites a string to use on Server 2003 with the management snap-in's saved queries (http://support.microsoft.com/kb/555131) but when I entered it, the query returned 400 users that a spot-check showed did NOT have a checkmark in the "Account is locked out" box under "account." In fact, I don't see anything wrong with their accounts. Is there a simple utility (wisesoft bulkadusers apparently uses this method behind the scenes, since it's results were also wrong) that will give a count of users and possibly their user object names? Script? Something?

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• Access console of QNX server

  - by dhergert

  I am new to QNX (although I am familiar with Unix/Linux). This company I am working with has an old QNX (4.25) server in a server room that they remotely access via Windows terminals (Kermit via Telnet) which presents them with a text-based program. I need to get into/onto the actual box to be able to view directories, files, etc... and wondering if I can do that "remotely", along the lines of how I would SSH into a Unix box. Is there something like that in QNX? Do I need to actually hook up a keyboard/monitor to this server to be presented with a console? Would I even get a console?

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• mac & windows backup solutions - Offsite Backups

  - by Kristiaan

  Im looking for some advice on a system Im looking to impliment within our company, but so far I have not found an adequate solution too. I need to provide my users with a way to backup there laptops whilst in the office and if possible offsite as well, we have a mixture of Windows & Mac laptops so software should ideally be multi platform. This is the first time i am attempting to-do something like this as we normally charge the users with responsibility for their backups. I have ruled out most of the services like dropbox, sugarsync (unless one exists that does this) as whilst they does exactly what I want it does not give me any control over restoring / recovering data in the event of the user being unavailable, as it requires their account password to access data.

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• Internet printing : print to iOS gateway -> AirPrint / something -> Laser printers

  - by user75129

  I've done a bit of research on the Internet, and it looks like I'm on a dead end. My goal is to minimize cost, and be able to send and print documents AUTOMATICALLY (may be 10 or 20 pages per day) to a laser printer in a remote office. The preliminary method is to use: iOS 5.1.1 (JB'ed) with 3G connection, HP (or other brands) printer with AirPrint, iCloud's Documents and may be write some launchd scripts to monitor any new documents in iCloud. May be with other software. I am not sure yet. By using the cloud, I can upload new docs to the cloud anywhere in my city, and the iOS will be able to see them within a reasonable amount of time, then print it. But it seems this combo is not workable. Anyone got any advice on how to make this set up work, or propose other alternatives that requires NO PC or Mac? Currently I have a 3GS with 3G connectivity spare. Need to buy a new printer though.

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• Add a server between router and switch (production)

  - by Kossel

  I have a small office network basically like below, there are more router/pc connected in S1. As you can see, the router is doing job of DHCP, DNS. but now I wish to add a Linux server between R1 and S1, So I can monitor the network traffic and do other more advance server admin stuff. the whole office network is 192.168.1.x and people are using their computer everyday. What network configuration should the new Linux server have (both interfaces) in order to minimize the changes need in the network? tried to change R1 ip to 192.168.100.1 them add the server with FE0/0 192.168.100.1 and FE0/1 192.168.1.1 but looks cannot ping the original Router..

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• Why is Chrome receiving data?

  - by Aero

  Chrome seems to be continually receiving data even though I'm not downloading anything. This is making a noticeable impact on my browsing speed. The first screenshot shows Chrome receiving data even though I'm not downloading anything (nor buffering a YouTube video etc.) Even after I completely close Google Chrome, the "chrome.exe" remains in the Resource Monitor list and the "Received bytes" column continually increases in the screenshot below. However, "chrome.exe" does not show up in the Processes tab of Task Manager. This only occurs sometimes, but I don't know why. I have tried running a malware/virus scans to ensure that there is nothing malicious behind this, but those scans have shown nothing. Any ideas on what's causing this?

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• What measures should be taken to prevent File System Object from accessing directories of other customers on an IIS shared web host?

  - by sean e

  We have our website on an IIS shared hosting server. While working on a file monitor for our site, we have found that the File System Object allows us to enumerate the directories and files of other customers that are on the same server as us. Attempting to enumerate files in some root customer directories results in access denied errors - but not all. Is this an IIS configuration error? A Windows configuration error? How can we direct our hosting company to fix the problem?

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• is there a cheatsheet for linux commands to save your system?

  - by Asaf

  I've recently lost my window options, had to somehow manipulate my way to Xchat and ask some people how do I get it back (it was metacity --replace, and after I decided to stop the command and run it in background the X was completely useless so I had to do killall -u user). And that was after the internet connection stopped working for some reason (might've been the ISP) ..The thing is, after using linux a long time, I still get the feeling that on dire situations, I don't know the good tricks (stuff like metacity --replace) I feel like a really need like a "rescue" cheatsheet for things like "how to save the X no matter what without pressing reset" and "how to reset the system to "normal state"" "how to connect to the internet through the command line" "how to monitor what the X is doing" (using ubuntu linux 10.04 btw)

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• Sending a file to uCLinux

  - by Mike

  I have a board running uClinux, and I need to send a file to it, but I'm not sure how... I have a RS232 port, and Ethernet port with an IP address at my disposal, I can telnet to the board, but uCLinux doesn't have a built in FTP client. What sort of options do I have here for transferring files from my Windows 7 (or OpenSUSE) machine(s) to this board? EDIT I just found I have a TFTP server on it: # tftp BusyBox v0.60.5 (2012.07.09-14:05+0000) multi-call binary Usage: tftp [OPTION]... HOST [PORT] But I can't find any good information on how to use TFTP. And looking around google I'm seeing it's good for loading binary images, so I'm assume anything could be sent, but I'm not sure.

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• How can I find out what's uploading traffic to the internet?

  - by Nick G

  Some program I'm running is constantly uploading to the Internet. It's uploaded 300MB in the last few hours. I could reboot and see if it stops, but I'd prefer to find out what it is if possible. I've tried using the resource monitor but it's totally nonsensical - even if I run a broadband speedtest, it barely registers any traffic. Ideally I'd like to find a tool which can tell me the current bandwidth of each application. I think NetLimiter used to work on XP but it's not supported for Windows 7.

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