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  • How long are the default times for greylisting? [on hold]

    - by rubo77
    In Wikipedia it sais: A mail transfer agent (MTA) using greylisting will "temporarily reject" any email from a sender it does not recognize. If the mail is legitimate the originating server will, after a delay, try again and, if sufficient time has elapsed, the email will be accepted. But how can I find out how long these delays are on my server and on the receiving side? My goal is to speed up email-traffic with partners using greylisting too and speed up the receiving of the first email someone sends to customers on my server.

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  • Innotop and Monit to kill thread using too much resources

    - by pocesar
    Instead of restarting the whole MYSQL process, sometimes I just want to kill the offending thread instead of making everything go down. Usually the spike in CPU is when a bot is crawling the first pages of pagination of my site (over 70.000 paginated results, 45 items per page). Is there a way I could do this automatically using monit and innotop? I couldn't find relevant information on Google, that's why I'm asking here. If these two tools aren't par to the task, which ones should I use?

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  • Index fragmentation and reorganizing database pages

    - by TiQ
    Say you have a database with heavy index fragmentation. Say this database also has a lot of free space due to frequent deletes in its data file. This free space is not contiguous. If I rebuild all indexes to remove fragmentation and then reorganize the database pages so allocated pages and free pages are contiguous, would this cause further fragmentation in my indexes? I guess the question can be posed as: if it matters, which should I do first, reorganize or rebuild?

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  • asterisk queues priority and penalty

    - by MealstroM
    queues.conf shared_lascall=yes strategy=rrmemory wrapuptime=15 A1,A2,A3 are members of 2 queues: queue1(Q1) and queue2(Q2) A3 has penalty 3 in Q1 where min/max penalty are 0/3 and A3 has penalty 0 at Q2 where min/max penalty are 0/3. A3 has just ended a call and is on wrapuptime pause. User1 (U1) enters Q1 with priority 10, and user2 (U2) enters Q2 with priority 15. A3 wrapuptime ends. What user U1 or U2 will be served first?

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  • (Why) are IEC C5/C6 connectors a necessity? Why not use C13/C14?

    - by Mike
    That's a question I was asking myself the first time I saw such a weird C5 plug. That was a while ago, but I came across it again and haven't found an answer yet. The only thing I could find out is that C5 is with 2.5A and C13 with 10A. But I guess it would technically be no problem building an AC adapter (e.g. for laptops) in which you plug the far more common C13 connector. http://en.wikipedia.org/wiki/IEC_connector

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  • Print Business card

    - by Tural Teyyuboglu
    I'm trying to create business card on adobe Photoshop. But I feel that, PS is not right choose for this reason: First of all after creating 1 business card, I can't duplicate it automatically to fill a4 page. I have to do it manually, one by one by duplicating 1 business card. After googling a bit,I've found another application but it'stoo simple, no way to change standarts templates. Which application is right for professional business card design?

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  • How do I configure a guest VM's static IP address automatically in Citrix XenServer?

    - by Kev
    To facilitate automation of guest VM provisioning, how do I set (in a script) the IP address on a guest VM's NIC (or NIC's) once a new VM has booted? Is there a way to "inject" netsh commands via the Citrix guest OS tools (for Windows for example) once the host has started? Or can this be done via the Citrix API/SDK or the xe tools? These are windows 2008 servers that have been sysprep'd so when the boot for the first time they have no IP address.

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  • Xcode immediate autocompletion (not only to the next CamelCase)

    - by courteous
    How to make the autocompletion feature return the current suggestion (from "completion list") in full? That is, how not to jump only to the next CamelCase with TAB ... but instead have, say, CTRL + TAB choose the suggestion immediately/in full? Example Having CGPDFStringGetLength selected in the "completion list", one would have to press TAB four (4) times! first TAB get to CGPDF then to CGPDFString then to CGPDFStringGet then to CGPDFStringGetLength It would be nice to have CTRL + TAB (for example) make the above a one-step process.

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  • Unable to SSH to a virtualbox Redhat

    - by Rajat
    I am using a MAC and using virtualbox to start a Redhat instance. The instance is started with two adapters (first being NAT, and second being host-only-adapter). The problem is that I am unable to SSH from my Mac to the virtualbox instance using the IP (I am able to ping the IP, though). I checked in the iptables and SSH is allowed (port 22), and sshd daemon is also running. Anything I am missing?

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  • How to disable my netbook's touchpad when a usb mouse is connected.

    - by overmann
    This is the first computer I have ever bought and I couldn't bring it home without a mouse of its own. I'm trying to disable the touchpad but the only option I find is by uninstalling the drivers, which I think is a bit drastic, the buttons for activation and deactivation are disabled (I'm using windows 7 starter). Do you have any idea of how to disable the touch pad when an external mouse is hooked up?

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  • Two Raid 1s in a single system?

    - by DebAtCQ
    I'm building a Raid array for the first time in my system and I have a question regarding having multiple Raid 1 arrays in a single Win 7 system. I'm a bit of an organizational freak with my data and I currently have two separate hard drives I want to mirror. The new motherboard I'm looking to buy supports Raid, so my question is this: a) can I have more than one Raid 1 array in a single system? b) would I have to buy a separate controller for the second array?

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  • Get WebDav uploading progress and status (Linux, davfs2)

    - by Hnatt
    I am using WebDAV on Linux box with davfs2 1.4.6. When I copy a file to a mounted WebDAV service, it is goes rather fast, just like a regular local drive operation. And it actually is, because the file is first copied to ~/.davf2/cache directory. But how do I know that uploading is finished and where do I see current progress? Is there a way to know that uploading failed due to lack of space or file size restrictions?

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  • Mod_rewrite Mask URL

    - by user37143
    Hi, I need to rewrite https://mydomain1.com/chanagepassword to https://mydomain2.com/ssp then hide the url mydomain2.com/cp in browser and show https://mydomain1.com/chanagepassword. I got the first part working with the rule: Options +FollowSymLinks RewriteEngine on RewriteRule /changepassword https://mydomain2.com/ssp/ [R=301,L] However it shows https://mydomain2.com/ssp url on browser. How can I mask this and show https://mydomain1.com/chanagepassword Please support. Thanks.

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  • Two Raid-1 arrays in a single system?

    - by DebAtCQ
    I'm building a Raid array for the first time in my system and I have a question regarding having multiple Raid-1 arrays in a single Win 7 system. I'm a bit of an organizational freak with my data and I currently have two separate hard drives I want to mirror. The new motherboard I'm looking to buy supports Raid, so my questions are: Can I have more than one Raid-1 array in a single system? Would I have to buy a separate controller for the second array?

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  • How would I recognize the "spoon-feeding problem" on a dynamic webapp server?

    - by Don Spaulding
    The "spoon-feeding problem", as it was recently explained to me, happens when connections to your application server are tied up feeding data across slow network connections to your clients. This makes sense to me and now I understand the importance of putting a highly-concurrent proxy in front of my app servers. My question is, how did the first person to recognize this problem figure it out? What *nix tools and troubleshooting techniques would help me to recognize this problem if I hadn't had it explained to me?

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  • How do I recover JPEGs with zero bytes?

    - by Jill
    I downloaded some wedding photos into my external drive about a month ago. A total of 3 cards were downloaded into 3 different files. The first file lists all of the photos, about 600 images, but they have zero bytes. The other 2 files are fine. I can't recover the compact flash card because I have used it too many times since then. Is there any way to recover the images on my drive?

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  • Is there a way to make Notepad++ auto-complete words on {TAB} instead of {ENTER}?

    - by Andrew Cheong
    Is there a way to make Notepad++ auto-complete words on Tab instead of Enter? Currently, if want to type, say, frame, then Enter to begin a new line, instead the Enter will select the first auto-complete suggestion, like frameElement:      I do want the auto-complete feature, but I'd rather have a key like Tab do the actual selection, because Enter is frequently purposed toward starting a new line, whereas Tab is rarely used to indent after a word (since indenting is usually done at the start of lines), and so perhaps would be better repurposed toward auto-completion.

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  • are you supposed to be able to "ping" specific pages of websites, or just the domain name?

    - by Bec
    (sorry, i think my jargon is a bit off there, not sure) I'm trying to work out what's going on with my podcasts not downloading properly, to see whether it was my pod-catching software or the connection i tried doing a ping on the podcast URL e.g. www.abc.net.au/rn/podcast/feeds/ockham.xml and it failed (i got "could not find host"), it works for the first part of it though www.abc.net.au I can get to the xml page in a web browser though, and ping doesn't work on the podcasts which have been downloading right either.

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  • how to check if your isp does video throttling?

    - by bbaja42
    I've recently changed isp; and noticed that I no longer can watch video sites like youtube in real time; I need to wait for buffering first. In both ISPs, my speed was same 5 megabits per second. I've checked normal download of files, and torrents, and they all work fine. Also, checked other video sites, same problem. Used other pc, same problem

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  • Move Windows 8 onscreen keyboard?

    - by Vladimir Sinenko
    From the first look, it seems that the onscreen keyboard in Windows 8 cannot be moved from its default position at the bottom of the screen: However, sometimes it obstructs the input field and should be repositioned (see iOS 5's screenshots for examples) So the question is, can it actually move? If it can, how can I do that? If it cannot, is it possible to use the keyboard to fill an input field that is underneath it?

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  • How to monitor IO svctm with every 5 mins frequency using nagios?

    - by sabya
    I want to collect samples of iostat's svctm, await every 5 mins from all of my servers and store them in nagios. I want to get the values for what is happening in every 5 minutes (not since boot time, iostat's first output gives values since boot time). How can I do it in nagios? EDIT The tps should NOT be calculated #of transactions happened since reboot divided by uptime. What I want is # of transferred happened in last X mins divided X*60.

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  • iPhone4: Keep playing songs after song selected from Search iPhone screen ends?

    - by Jeremy
    When I first got my iPhone 4, if I selected a song from the "search iPhone" screen (when you hit home twice), iTunes would start playing a playlist of all my songs, starting with the selected one. I recently updated it to 4.2.1 (I don't remember exactly what I was at before). Now, when I select a song from the "Search iPhone" screen, iTunes starts playing a playlist containing only that song. Is there a way I can get the old behavior back?

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  • Oracle automatic patch download

    - by watain
    I need to update/patch the firmware of a lot of Sun/Oracle systems quite frequently. To do that I first need to download the latest firmware snapshot by hand from Oracle's saggy and unsophisticated "My Oracle Support" (list of all firmware snapshots can be found at http://www.oracle.com/technetwork/systems/patches/firmware/release-history-jsp-138416.html). Now I wondered whether there is a known way to automate the download of all the latest patches, maybe using a script. Kind regards

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  • Flash player 11.4 hungs firefox immediatly after start

    - by killer_PL
    I have installed Flash player 11.4.402.287 on a "fresh" PC, moments after installing Windows, drivers, directX etc. After installing Flash Player Firefox totally hungs immediatly after run. First page (adobe page, because it was launched before closing firefox) doen't load. I see new tab but FF goes hung to zero-responsivity, even loading icon stops in single position. KMPlayer, wich uses firefox also hungs. How to solve this issue ?

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