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• Spambot Infection Detection

  - by crankshaft

  My server has been blocked by CBL for participating in curtwail spambot. Initially we suspected that it was coming from a PC and not from the server, but the router is blocking all packets on 25 except those coming from the server. I have just executed the tcpdump command and every 5 minutes I see a flurry of activity on port 25 that is very suspicious and I am sure that there is some process running on the server: 13:02:30.027436 IP exprod5og110.obsmtp.com.53803 > ubuntu.local.smtp: Flags [S], seq 171708781, win 5744, options [mss 1436,sackOK,TS val 3046699707 ecr 0,nop,wscale 2], length 0 I have stopped postfix, and yet there is still traffic on port 25 above. But how can I find what process is actually communicating on port 25 as it only rund for a few seconds and so for example lsof -i :25 will never catch it. I have been working on this now for 2 days, it is a live server and I cannot simply shut it down, any suggestion on how I can detect the source of this email bot process ?

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• Reducing the size of the EDB file.

  - by Toby

  I have hit an issue on a MS SBS machine where every morning the datastore for the exchange mailboxes dismounts itself. We believe the issue is that it has grown too large over time and needs cut down a bit. As part of this we have removed (purged) some mail files that were no longer needed, which should have given us a saving of roughly 3GB (more than enough saving for what we need). So I deleted the mailboxes, then purged them and noticed that the .edb file was still reporting the same size, I dismounted and remounted it to see if that would have any effect but it did not. Am I missing a step? I have read online that you can run offline defrag on the file but that seems to only save you a small amount of whitespace. Any help would be greatly appreciated.

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• Fixing fill-paragraph with comments in Emacs 23.2.1

  - by Silfheed

  I just upgraded to emacs 23.2.1 when I finally upgraded to ubuntu 10.10, but the first thing I noticed is that fill-paragraph (M-q) doesnt work nicely with comments anymore or at least do not work the way they did in emacs 23.1.? that I had before the upgrade. The main issue is that if I have a commented line such as //This is a long comment to illustrate an issue I have with emacs lorem ipsum and then do fill-paragraph (M-q) afterwards, I get //This is a long comment to illustrate an issue I have with emacs lorem ipsum whereas I should get //This is a long comment to illustrate an issue I have with //emacs lorem ipsum I've killed my .emacs file to try and narrow down where the issue is popping up, but this still pops up even in vanilla emacs.

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• Is there a way to watch EyeTV in alarm-clock style "sleep" mode on your iMac?

  - by Mark S.

  My wife likes to watch TV to go to sleep, the only trouble is that the only TV we have in our house is the iMac with the EyeTV Hybrid. I'd like to have the TV turn off after 1.5 hours of watching without changing the channels/volume--sortof like an alarm clock 'sleep' function. Do you know of a way to do this either with an EyeTV plugin or an App that might be able to try to detect such conditions and shut down the display? Right now EyeTV overrides the screensaver. The Power saver functions don't really work because she doesn't start watching at the same time every night and periodically she will want to record a 2 or 3 AM show. All I want to do is "close" (but not quit) EyeTV and shut off the display.

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• Launching multiple applications with a single command/script/shortcut

  - by Bill

  I realized a few days ago that every time I sit down at work, I do a few things after unlocking my computer. First, I open up Firefox, then I open up Chrome, then I log in to Digsby. I realized I could probably save repeating this daily by writing a small batch script to open up Firefox and Chrome , but I couldn't figure out how to make it work.. and since the whole effort is to save time I don't want to bash my head around in the windows command prompt to do it. I also tired this in powershell but ran in to a bunch of security nonsense. Is there a way to do this that I am missing? Bonus points if somebody has figured out how to manipulate Digsby via COM , scripting, or python =)

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• "Meet in the middle" with SSH

  - by stillinbeta

  I have an interesting question regarding SSH. I have a machine at school that I'd like to be able to access from elsewhere. It's behind a firewall/NAT, so I can't get at it directly. I have a leased web server that I can SSH into from anywhere. I was wondering if I could do some voodoo with port forwarding to get to my machine at school via the web server. I think this comes down to whether you can do SSH "backwards," which may or may not be possible. Basically: Machine A can access Machine B Machine C can also access Machine B How can Machine A access Machine C?

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• Combine VPN bandwith over two or more WAN connections? Load balancing?

  - by mistrfu

  Imagine you only have DSL with 5mbps Down and 2mbps Up. Is it possible to have 10 of these for example and combine them in a way that would increase the upstrean bandwidth to one server? In my head it works like this: intranet with one gateway/router router connected to multi wan load ballancer on each ballancer wan port router with vpn clinet set up, tunneling to a server ?some? software on the server in cloud joining all these connection into one interface again I would need this mostly for big uploads to a server, downlink to the office is not that important at all. Does it even make sense? I drew an image to clarify.

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• How are the conceptual pairs Abstract/Concrete, Generic/Specific, and Complex/Simple related to one another in software architecture?

  - by tjb1982

  (= 2 (+ 1 1)) take the above. The requirement of the '=' predicate is that its arguments be comparable. Any two structures are comparable in this case, and so the contract/requirement is pretty generic. The '+' predicate requires that its arguments be numbers. That's more specific. (socket domain type protocol) the arguments here are much more specific (even though the arguments are still just numbers and the function itself returns a file descriptor, which is itself an int), but the arguments are more abstract, and the implementation is built up from other functions whose abstractions are less abstract, which are themselves built from less and less abstract abstractions. To the point where the requirements are something like move from one location to another, observe whether the switch at that location is on or off, turn the switch on or off, or leave it the same, etc. But are functions also less and less complex the less abstract they are? And is there a relationship between the number and range of arguments of a function and the complexity of its implementation, as you go from more abstract to less abstract, and vice versa? (= 2 (+ 1 1) 2r10) the '=' predicate is more generic than the '+' predicate, and thus could be more complex in its implementation. The '+' predicate's contract is less generic, and so could be less complex in its implementation. Is this even a little correct? What about the 'socket' function? Each of those arguments is a number of some kind. What they represent, though, is something more elaborate. It also returns a number (just like the others do), which is also a representation of something conceptually much more elaborate than a number. To boil it down, I'm asking if there is a relationship between the following dimensions, and why: Abstract/Concrete Complex/Simple Generic/Specific And more specifically, do different configurations of these dimensions have a specific, measurable impact on the number and range of the arguments (i.e., the contract) of a function?

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• How to join a Windows Domain and Map Network Drives?

  - by AgainstClint

  I just installed the current build for Ubuntu on a partition for my work computer. I am a novice when it comes to Linux/Ubuntu, which is why I installed it along side windows. I want to learn how to operate and use Ubuntu much more than I do now, so I figured installing it and trying to do day to day functions here would be a "Thrown into the pool with sharks" way to do it, and I like that way. I did however have a few questions: We are on a Domain in Windows, is there any way to join that domain using the Ubuntu partition? We Also have 16 mapped network drives. I don't actually need ALL of them mapped for Ubuntu, but is there a way to Map at least one of them to see/use here in Ubuntu. Outlook Corporate email, how can I sign in/use it while...well, you get the idea. As I said earlier, I am VERY new to Ubuntu, i've only played around with it a bit at home and never at the office. If you could simplify it down for me a bit, that would be great.

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• How can I speed up my macro in Excel 2003?

  - by user144872

  I have a macro that copies data from one cell to another and uses a VLOOKUP formula, among other things. My spreadsheet contains nearly 2000 rows. When I run it in Excel 2003, Excel starts to slow down as the macro processes rows 500 and above. It gets even worse when it reaches the 1000th row. It takes more than 5 hours to complete. In Excel 2007, however, the macro runs for only half an hour. Can anyone help me find a good solution?

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• How do I get my Intel HD graphics to work alongside my HD7850, as my second(HDMI out) monitor?

  - by AlexTes

  Title says it all. Further info: Motherboard: http://www.asrock.com/mb/Intel/Z77%20Pro3/ Processor: http://ark.intel.com/products/65520/Intel-Core-i5-3570K-Processor-%286M-Cache-up-to-3_80-GHz%29 So currently my main screen is running on my HD7850. Got drivers from the amd website. I have looked through dozens of questions here. I'm about to try booting Ubuntu from a stick and seeing if the xorg-edgers drivers might help. When booting, all action goes down on the very screen I'm trying to get to work.*EDIT never mind this. Seems to be special boot magic. As the screen only displays whiteline errors once the gui of ubuntu has kicked in and everything graphic is happening through my graphics card again. Connected through HDMI(motherboard)-DVI. So unless having multiple displays is a huge deal the solution hopefully isn't that complicated. I just feel I'm missing something simple. If this really is complicated, I should probably just hook up the display to my graphics card. My CPU is usually the one chilling out though so I'd like to try to get that to work. Also just because I don't want to buy an extra cable and this set up makes me feel warm and fuzzy inside. Tell me what to try or look up, I'll be most appreciative. Thank you! **UPDATE The x-swat ppa installed some intel stuff. Booting with one monitor plugged into the motherboard gives nothing. Doing it with the pc already on gives the purple "Ubuntu" with 5 dots boot/shutdown screen.

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• Photoshop: Trim a photo so it contains no transparent pixels?

  - by nickf

  In Photoshop, I've put together some panorama photos using the Photomerge tool and the resulting image contains a lot of transparent pixels. Also, because it's put together of multiple photos the alignment can be off. What I'd like to do is cut the image down to the largest box which contains no transparent pixels at all. It's similar to the Trim tool, but this would remove a number of non-transparent pixels. Is there anything like this? Basically something which would automatically crop the above image to the selection box there: a rectangle with no transparent pixels.

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• Random greyed unresponsive screen on netbook

  - by user643722

  I love my Asus Eee PC 1000 Ubuntu 12.04 netbook, but I have a little problem. As I use it, the screen will randomly turn grey and become unresponsive. I can then only wait, until perhaps 10-60 secs. later, when I can interact again. Only the bar at the top of my screen retains its colour throughout. I thought it might be Firefox, as I have a lot of tabs open. I installed Chromium, used it instead, and the problem remained. A while back I upgraded from 1 to 2 Gb RAM. So, I thought recently, maybe I should increase the swap-space. I have 738Mb of 7.2Gb free on root; and 2Gb of 28Gb free on my home drive. I bought a 32 Gb SD Card and assigned 4Gb to swap space. cat /proc/swaps reports that the partition is being used. Alas the problem remains. Does anyone know what's wrong with my machine? The SD Card has changed my machine somewhat, but the greying still happens. I ran free -m shortly after another episode, and received: total used free shared buffers cached Mem: 2004 1731 272 0 370 769 -/+ buffers/cache: 591 1412 Swap: 4073 0 4073 Update: Using 'top', I can see that compiz uses about 43% of the CPU (#1 position) when the greying occurs. After the greying, compiz drops back down to its usual 8% of CPU.

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• How can I reset windows 7 file permissions?

  - by ssb

  I looked at this post and it seemed to be close to what I want, but my case might be a little worse: How can I reset my windows 7 file permissions to a rational state? Basically a while back I (very stupidly) changed the permissions on all sorts of system folders, and eventually rendered my computer virtually unusable. I managed to hack administrator privileges back onto key folders and getting it working, but in doing so I only modified permissions a lot more away from the natural state. I'm looking at this icacls stuff, but ultimately I need to reset EVERYTHING back to what it was in The Beginning, before I messed with it, from the C: directory all the way down. Right now application data is what's giving me problems, and I can't get it to work no matter how much I fiddle with those specific permissions. I will be forever grateful for help on how to do this without having to reformat.

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• Firefox - built in search engine toolbar broken

  - by Victor78

  When I change the order of the search engines (Toolbar - Manage Search Engines - Move up / down - Ok) it changes the order, until I close and reopen the browser. I can't imagine that's the way it's supposed to work. I want it to stay in the order I select. I have no add-ons installed that have anything to do with search engines, nor that add any toolbars. I am not using a customized theme. Apparently this problem is rare, as Googling [ "manage search engine list" ("order reverts" OR "order changes") ] return 0 results. Firefox 3.6.12; Windows XP Pro SP3.

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• Blank screen on laptop after replacement

  - by Mark

  I have an Acer Aspire 5332 laptop, running Windows 7 home premium 32bit. My screen broke, but the particular screen (LED) are no longer made so I bought a CCFL one with a new converter which has proven to be compatible according to the supplier. When I first booted the screen went blank just after the Windows logo was displayed. I suspected a driver issue, so booted in safe mode without any problems, disabled the display adapter (Intel 4 series express family) and it booted up fine. So I guess the screen is not compatible with the display adapter. The driver version is 8.15.10.1892. I tried updating from the Intel site, but it saying it cannot (something to do with manufacturer specific). The supplier is not willing to take it back, so I'm down £60 (UK). I can use it with the adapter disabled, but the quality is bad and I cannnot play video, etc. Any help appreciated.

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• Windows 7 Hibernate Problem

  - by goygoycu

  I cannot hibernate windows. When I click "hibernate", my laptop(windows) just locks and the screen goes black. I can unlock without any problem. I do not have any problem with other options such as "sleep" or "shut down". I updated the chipset drivers but it did not help. There is not any option in BIOS about the sleep modes. "Hibernate" is "on" on Windows. Any advice? My Laptop specifications: MSI A5000 3gb system memory, Windows 7 Home Premium 32bit installed, Gentoo linux installed, Grub bootloader(MBR). Hard drive: Around 4gb of free space in windows partition.

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• Ctrl Alt Left/Right moves mouse - how to find responsible software?

  - by Unimatrix02

  Hi, I've got a bit of a strange problem. On one of our computers, pressing ctrl + alt + left/right/up/down will move the mouse pointer on the screen, but it's not clear which software makes this happen. It interferes with other software that uses these shortcuts. I've already tried disabling some software, such as WinKey and a Kensington mouse driver, but that didn't make a difference. It's happening on a Windows XP SP3 computer by the way. Does anyone have an idea of how to find the software that traps this shortcut? Suggestions for actual (types of) software that might be doing this are welcome too. Thanks!

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• Disable incremental search in firefox (and everything else!)

  - by Alan Curry

  All I find from googling "disable incremental search" is a bunch of people telling me how great incremental search is. It isn't. Firefox has the worst version of it, jumping around and making me lose my place because of a search I haven't even finished typing yet. I don't want the window scrolling up and down without my say-so. It would be nice if I could search with regular expressions, like text search has been done in every non-toy application since ed. But the jumpiness of the window is the overriding concern. How can this evil be defeated?

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• Firefox: combine bookmarks toolbar and tabbar

  - by horsedrowner

  I am looking for a way to 'minify' the Firefox UI by combining the bookmarks toolbar with the tabbar. The easiest way I could see this done, is by simply moving the Bookmarks left of the tabs on the tabbar. I do not have the knowledge of writing my own userChrome.css styles, but it seems possible to do it this way. Another more difficult way to do this, would be by making it work similar to Windows 7's taskbar. What I mean by this, is to have a bookmark toolbar, and clicking on a bookmark would turn it into a tab, just like clicking an icon in the taskbar in Windows 7 would turn that into a 'program'. Ultimately, it comes down to this: by default, you have two toolbars: a bookmarks toolbar and a tabbar. I would like to combine these into one toolbar.

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• Windows domain login to temporary user

  - by amyassin

  We have a Windows domain with about 60 user accounts. Sometimes when a user logs in to his computer (already his account is created and has files there) windows logs him to a temporary user, displaying his name and everything, but without his files and data. This problem is rare and is solved simply by logging out and logging in. I noticed that it occurs at a close timings; they all happen at the same day if they did. My question is why does that happen? I want to trace the problem because it is so annoying when it happens, and I can't find a relative event that may be causing it: no server is down when it happens, no system maintenance or anything. We're running Windows Server 2003 R2 Standard, SP2 in the Domain Controller (and the same for the additional DC). The machines where this problem happened before are running Windows XP and Windows 7.

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• initctl respawn does not reload configuration

  - by DELUXEnized

  My upstart service is running with the respawn option. I was hoping that if I deploy a new service config, the config will be loaded, when the service respawns. Neither the initctl reload-configuration command forces a reload, nor the restart command. Only an explicit stop and start reloads the configuration. The problem is, that I can not stop and start the service, at deploy time. The service itself schedules its restart by just shutting down. Is this behavior by design or am I missing something? Would it change anything, if I did the respawn with a second watchdog-service by an explicit start if my service stops? Why is there a difference between an explicit start/stop and the restart command or respawn option. Thanks.

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• Amazon S3 - Storage Class and Server Side Encryption

  - by Steven

  Ahhh! I am using Amazon S3 for some low price storage to clear down out SAN. I created the bucket and created a root folder. I set the storage class to standard and server side encryption AES. I started a copy job to move the files, some files copied over and i checked the files: Reduced Redundancy Encryption set to none WTF? So i deleted all files and folders. I manuallyed created the folder structure and again set the storage class and encryption level. I coped some files and bamm, still showing (at a file level as Reduced and no encryption). So my question is this, is it really raid'd and encrypted just not showing it properly (as the root folder is, how can the file not be??) or (b) am i being a huge tool and missing something?

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• Firefox - order of search engines reverts (toolbar)

  - by Victor78

  When I change the order of the search engines (Toolbar - Manage Search Engines - Move up / down - Ok) it changes the order, until I close and reopen the browser. I can't imagine that's the way it's supposed to work. I want it to stay in the order I select. I have no add-ons installed that have anything to do with search engines, nor that add any toolbars. I am not using a customized theme. Apparently this problem is rare, as Googling [ "manage search engine list" ("order reverts" OR "order changes") ] return 0 results. Firefox 3.6.12; Windows XP Pro SP3.

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• Visual Studio 2010 locking referenced Assembly

  - by cunningdave

  I have a sandbox app that is built from the simple WPF Application template. This sandbox references an assembly that I am also building which contains the definition of a UserControl (WPF). I am instantiating this user control in the sandbox, to test the control's behaviour. The point of all this is to speed up development. This worked fine, but recently the .Vshost.exe paired with the sandbox process won't shut down. This prevents me from recompiling the Controls library, though ironically I can recompile the sandbox application. I can't kill the vshost process with Task Manager... only restarting VS2010 will clear it out. But every time I run the application from VS, the process just hangs there, blocking my workflow. I'm at a loss. Any ideas what could be causing this? Or does someone have any proposed workaround (mega-kill switch, perhaps?)

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