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• When can an FTP server close its passive connections?

  - by Don Kirkby

  Does the FTP protocol allow the server to close any of its passive connections while the client is still connected? Can it tell when the client is finished receiving and then close the connection? I'm including an FTP server in my application using the pyftpdlib Python project. I've got it to work in active and passive mode, but I'm a bit concerned about when it closes its passive connections. I've tried connecting to it with both FileZilla and the default ftp command in Ubuntu, and in both cases, I get a new passive port for every request. That is, if I sit in the root folder and type ls 10 times, I use up 10 ports. This means that I have to allocate a big block of passive ports for the FTP server to use so it won't run out. As soon as the client disconnects, the server releases all the passive connections associated with that client and those ports can be reused. However, a long-running connection could use up a lot of ports.

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• Remote connection to dynamic public ip & private ip addresses

  - by user51737

  Many times I connected to windows computer which has static public ip address via remote desktop over wan links. I'm wondering how could I connect to the remote computer that has dynamic public ip address & private ip addresses assigned. I've 2 systems at home: xp system-------connected to internet(dynamic public ip) & allowed other users to connected to the internet on the interface. windows vista system--------enabled dhcp on the interface to access internet from xp. How could I remotely connect from my office to the 'vista system'?. If I've a router/modem at my home it may be possible to allow the ports for the system but I don't. Any tips?

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• Create a video stream from an image

  - by skerit

  I have a network camera that is only able to give me an image, not a video stream. In my home network this image is at http://192.168.1.16/loginfree.jpg I'm able to get this image a few times per second. I would now like to be able to serve it up as a video stream so I can use it in zoneminder. Any idea as to how I do that? I've messed around with named pipes and ffmpeg's image2pipe, but I can't get it to work properly.

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• Domain users sometimes cannot access our NAS

  - by Natalie

  I'm using a QNAP TS-410 Turbo NAS and I've got domain users connecting to it frequently everyday. However, there are times when their connection to the NAS will seem to just drop and, suddenly, they cannot access their network drives (which I had set up our Domain Controller to automatically map to folders on the NAS). Could you please tell me what may cause this? I don't think it is a network issue as everything else seems to work just fine. (If more details are needed, please let me know so I can update this question.)

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• Excel chart won't update, based on calculated cells

  - by sam SJL

  I have an Excel document (2007) with a chart (Clustered Column) that gets its Data Series from cells containing calculated values The calculated values never change directly, but only as a result of other cells in the sheet changing When I change other cells in the sheet, the Data Series cells are recalculated, and show new values - but the Chart based on this Data Series refuses to update automatically I can get the Chart to update by saving/closing, or toggling one of the settings (such as reversing x/y axis and then putting it back), or by re-selecting the Data Series Every solution I have found online doesn't work - I have Calculation set to automatic - Ctrl+Alt+F9 updates everything fine, EXCEPT the chart - I have recreated the chart several times, and on different computers - I have tried VBA scripts like: Application.Calculate Application.CalculateFull Application.CalculateFullRebuild ActiveWorkbook.RefreshAll DoEvents None of these update or refresh the chart I do notice that if I type over my Data Series, actual numbers instead of calculations, it will update the chart - it's as if Excel doesn't want to recognize changes in the calculations Has anyone experienced this before or know what I might do to fix the problem? Thank you

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• Slowness on Exchange 2007 Server (network related we think)

  - by Az

  We are seeing some odd behavior out of our exchange 2007 server. I believe it is network related as during the slowness in response from the exchange server. During these times downloading files to server is fraught with connection resets and extreme slow download speeds that are not affecting other servers right on the same subnet with the same gateway and ISP. We have about 50 users at a time using Outlook 2003 from a terminal server not displaying any other signs of slowness, all network slowness is confirmed trying downloads on the exchange server itself. Checked for virus issues, there are none. Checked for hardware issues, none found I am noticing between 200-400 TCPv4 connections established I am seeing around 100k tcpv4(active) connections according to perfmon are these numbers odd? Has anyone run into anything similar? Our server has a gigbabit NIC linked to a gigabit switch using cat6 so I do not believe it is "physical". Thanks!

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• Has anyone tried the "Secret LCD Monitor" hack? [closed]

  - by cornjuliox

  I'm genuinely curious to know, has anyone tried this hack? I can get LCD monitors for cheap at a place near where I live, and I'd like to try it myself, but I'd like to get more info on it before I do so to increase my chances of success. I'm looking for more info on the entire process, especially about any solvents I can use should I run into any glue problems. Questions for anyone that HAS tried it: Does it actually work, or is this some gag? If it works, is there any decrease in image quality or viewing angles? Since the polarization filters are essentially stuck to glasses, does that mean you're going to have to sit directly in front of the monitor at all times, and any shift in your position means that you won't be able to see the image? Does it improve/worsen ghosting or other LCD artifacts? Are there any problems with eye strain?

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• No longer able to run photo software on XP

  - by Peter

  I have Olympus Master 2 and Photoimpression 6 on my system which is running with XP Pro. Both programmes ran fine till recently and neither now works. I have run Avira and AVG anti virus (only one loaded at a time), Superantispyware, Spybot and Malwarebytes and removed the usual dross but no help. I have also uninstalled and reinstalled both several times but again no help. Both programmes load but the Olympus one immediately passes to the usual 'its met a problem and needs to close'...Photoimpression loads fully but as soon as I go to the edit screen it gives the same message. I have tried another profile to no avail. Any idea why this is and what the solution is??

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• No Sound from headphone jack

  - by Tural Teyyuboglu

  I have DELL Inspiron N5110 laptop. Using windows 8. Recently I got an issue: The problem is, when I insert headphones and microphone into laptop, I get only microphone inserted notification. Laptop detects microphone But no headphones. In fact, It mutes sound from it's speakers. But no sound from headphones too: I tested headphones separately: they're working well. I also, reinstalled windows default sound drivers and IDT High Definition Audio drivers several times. No success! The final decision is: There is no sound from headphone jack in laptop. Any suggestions?

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• Why does my webpage look different when I connect using different routers?! Does routers cache files?

  - by Ayyash

  Here is the case, I am working on a site from office and home, I recently updated the stylesheets and logged in the live site from office (using my same laptop I use all the time), and everything looks okay, I come home use my home internet connection to connect to the site using the SAME laptop, the styles are not updated! The thing is: this happens on ALL browsers, and after emptying the cache many times, and even after one month of work, and even if I have never opened the site before on that browser (as if my router has a cache of its own) Another thing: only one particular styles.css file seem to be hanging Extra info: I use the same IP for my home wireless router as that defined in the office, the usual 192.168.0.1

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• Samba + Centos (Share not working)

  - by mplacona

  I've done this a few times already, but for some reason this time it's not working. I have a folder called ruby (root:root - 0777) on /home/placona I'm trying to see this folder from my WindowsXP box, but keep getting permission denied. I can see the global share though, but whenever I try clicking on the ruby share, it won't let me in. Here's my smb.conf settings: [global] log file = /var/log/samba/samba.%m guest account = nobody netbios name = DEVBOX server string = DEVBOX CENTOS workgroup = WORKGROUP encrypt passwords = yes security = share max log size = 50 [ruby] path = /home/placona/ruby I want to be able to open this folder without using password (hence the guest account = nobody). I tried even with password, but never seems to work. Can anyone spot anything wrong with my settings?

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• VMWare - Windows XP guest licensing

  - by jcooper

  Hi, If I have a VMWare ESXi server with 4 Windows XP guests running on it, I understand that I need a separate license for each guest. Is there a way to simplify license compliance on these VMs? For example, I want to create a master VM image and boot it 4 times. By default those 4 VMs will have the same Windows activation key installed. Is there a simple solution for this? Or is it ok to do what I've described above provided I have 4 unique license keys on hand in case of audit? thanks!

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• Exchange 2007 mailbox reassignment

  - by John Virgolino

  I am trying to move a mailbox from one user account to another within a single AD domain. We are using Exchange 2007. I have followed these steps: Disable the account From "Disconnected Mailbox" container, connect to the new account I get a success message When I try to login to OWA using the new user account, I get this message: Outlook Web Access could not connect to Microsoft Exchange. If the problem continues, contact technical support for your organization. Request Url: https://mail.somedomain.com:443/owa/default.aspx User host address: 1.2.3.4 Exception Exception type: Microsoft.Exchange.Data.Storage.ConnectionFailedTransientException Exception message: Cannot open mailbox /o=cgsexchangeorganization/ou=exchange administrative group (fydibohf23spdlt)/cn=recipients/cn=someuser. NOTE: I changed some identifying information for security purposes. I have tried multiple times and get to the same place. When I login to OWA with old account, I get an error that the mailbox cannot be found, which makes total sense. Does anybody have any ideas on this? Thanks!

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• How to Create a shortcut to files / folders on a drive with different / changing letters (root)?

  - by Rolo

  I have seen this question asked and answered many times but the location one usually desires to create the shortcut is on the actual drive with the different letters. I would like to create the shortcut on the drive with the permanent letter. So, let me explain further. I have a C Drive and a G Drive. The C Drive is always C and it's on a Windows XP computer. The G drive may be G today, but H tomorrow. How can I create a permanently working shortcut on the C Drive that points to the G, sometimes H, external hard drive? P.S. I am referring to an external hard drive, but I would also (not instead) be interested in the answer if it were a usb flash drive. (Keep in mind the shortcut is being created on the drive with the permanent letter). Thanks.

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• TS connection lost but not local

  - by Owl

  I have an office that is connected to a shared db server and terminal services server, that other offices use as well, through a vpn tunnel. For some reason all workstations in the office will lose connectivity to the remote address but will remain connected to their local internet. I have checked both firewalls to ensure all settings match accordingly. They seem to go down at routine times every day and it doesn't last longer than a minute or two. Any ideas of what this may be? OS: Windows Server 2003R2 Terminal Services 5.2 Symantec Gateway 320 & Symantec Firewall/VPN 100

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• Typical Service Response Time for software verndors [closed]

  - by Miky D

  I'm trying to find out what are the standard service/tech-support response times that are expected of a software vendor. We're being asked by a customer to enter into an agreement regarding technical support for a software application that we're selling. Basically, I'm interested in the typical turn-around time (i.e. time to respond, time to resolution) based on the severity of the issue. And also, I'm interested in the financial structure of such agreements: i.e. charge/incident, bundle with unlimited incidents/customer etc. Any information or suggestions of where to find such information (even examples of other software vendors websites) would be greatly appreciated!

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• MS Windows issue - "Filename or extension is too long"

  - by Daniel

  I run Microsoft windows on a few of my machines. I don't know if many people know about this issue in the OS but you can't have very long filenames, from what I know Linux can have longer names, I have never run into this issue on my Linux machines. Anyway I run into issues whenever copying folders & files to backup drives. I manually backup of my data, finding and changing names of files, this is very very tedious. Is there a software tool to shorten folders or filenames that are found to be to long on Windows? I have drive image duplication software which does the job but in a way that I don't like, plus moving files can become a hassle at times if the names are too long to copy.

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• How to control fan speed using SpeedFan?

  - by John Young

  The CPU fan in my laptop is running too fast. I wish to control the speed manually to my preference, at times. Here is a CPU-Z screenshot of my laptop configuration: http://i.stack.imgur.com/1oST1.png And here is how SpeedFan window looks at my end: http://i.imgur.com/BIi0RdJ.jpg I have no idea how to use SpeedFan to control my laptop's CPU fan speed. How to configure it so that I can increase and decrease speed of the fan at my will? Edit: Sorry, the first image wasn't as intended, so I've corrected it now. Also, if someone can edit the post and embed the images in the post, that would be great. I need at least 10 reputation to successfully accomplish that.

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• How full is too full for mechanical hard drives?

  - by Sunny Molini

  I have heard many claim that it doesn't matter how full a drive is until it starts cutting into temp and virtual memory space. This doesn't make sense to me, given the nature of how the data is transacted on a hard drive. The inside of the platter presents less data per revolution than the outside of the drive does, by significant factors. The inside 40% of the radius of full size hard drive is used for the spindle, so only the outside 60% is used for data storage, but that still means that the inside track of a hard drive presents data 60% slower than the outside track. By my calculation, a Hard drive that is only 10% full should perform about 2.25 times faster than a hard drive that is 90% full, assuming that the flow is constrained by other factors. Am I wildly off base here? For all the drives I know, even the top speeds of the first 1% of the drive would be well within the bandwidth provided by a SATA 2 connection.

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• Do Chrome and Firefox share a browser cache?

  - by Davy8

  So I was having a problem with some stuff on SO not working that was similar to this post on Meta which recommended clearing the browser cache. Now it wasn't working in both Chrome and Firefox and I had never logged in to SO on FF before today so FF couldn't have cached the file itself. Tried hitting refresh multiple times and even tried Ctrl-F5 with no luck. I cleared the browser cache in Chrome only, and after that it started working on both Chrome and FF. How could clearing the cache of one browser affect the other?

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• Changing wallpaper depending on time of day via script or batch file?

  - by Patrick

  I want to have 2 different wallpapers that change according to time of day (6 and 22 hours respectively) and only want to display the night one after 22 hours and the day one only after 6 hours and until 22 hours. I didn't find a program that can do this after a standby, so I thought it should be easy to realize with the task scheduler running a script. Now the question is not only how to realize such a script, but also if the script should include the time checking or the task scheduler. I'm not sure what would work better with long times of the PC being in standby. I tried a few scripts already from similar questions and hoped I could modify to them to my needs, but they didn't work at all. Anyone able to help me? TIA.

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• wifi connection turns off oll the time

  - by er-v

  Hello! I realy need help with one strange problem. I have a wifi network in my appartment with wireless N home router Trendnet tew-652BRP. Everething work fine for three of my laptops, but I have one PC with D-Link DWA-140 adapter. It looses connection 2-3 times in 5 minutes. There is following messages in my system log when it does so: The browser has forced an election on network \Device\NetBT_Tcpip_{9537A5C1-3B43-4C56-B94C-CE69A257C3AD} because a master browser was stopped. The TCP/IP NetBIOS Helper service was successfully sent a stop control. The reason specified was: 0x40030011 [Operating System: Network Connectivity (Planned)] Comment: None The TCP/IP NetBIOS Helper service entered the stopped state. in order of appearence. How can I stop it? I have the latest driver installed.

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• Is there a free painting tool for the mac?

  - by Another Registered User

  What I need is pretty simple: Copy & Paste image regions (parts) in/from an big image Compose an big image out of small ones Draw lines, maybe even arrows Ability to move images around after pasting them in, and to select them again to move them again Save the final image I have photos of people and want to make a big image that shows who is related to who by connecting these photos with arrows or lines. Must not look absolutely great. I need that only a few times so I look for freeware / open source...

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• 2 DSL lines...any benefit?

  - by EJB

  I have verizon DSL in my office, I put DSL in about a year ago for $29.95 month...I added a new phone line recently and it was cheaper to actually get it bundled with DSL so now I have two DSL lines...my plan was to shut the first one off when my 1 year contract comes up (in September). A couple of times DSL has gone out on one line so I just used the other, which is a nice redundancy to have - but it doesn't happen often. (I unplugged one line and plugged in the other) Question is, is there any way to use both DSL lines together so that 1) I can increase bandwidth and effective speed might increase (is that possible?) or 2) have them both on and connected someway so that traffic on my network would just use either one, and if one went down the traffic would route automatically? If I can either increase speed by having two, or at a minimum get some automatic redundancy, I see no reason to keep both on.... Thanks!

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• Virtual Windows Servers and Pagefile location [closed]

  - by Luke Puplett

  Considering that Windows makes heavy use of the pagefile even with huge amounts of RAM available, is it not best to have this pagefile on the fastest disk possible as close to the virtual systems as possible? I'm thinking, RAM disk. Where I work, storage for VMs is out on a NAS/SAN. I'm worried that so much memory access is having to go across the network! As a side, I think its about time MS got rid of paging and told us to buy more DIMMS. UPDATE So this question has been downvoted??! Accessing a local spindle is C40,000 times slower than a DIMM, so going over the network will be even slower for hard faults. I don't know why I got the downvote, I'm certain that this is an issue unless there's some other mechanism in ESX/HyperV that manages this.

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