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• Is there a quick way to remove browser decorations

  - by Dane

  I'm finding that more and more applications use browsers as their user interface and I am caught in a dilemma. When browsing I want a browser window to have browser buttons, navigation icons, etc. When I'm using the browser for an application like twitter or yammer then I don't need those and having them just reduces the application area. I would rather save the vertical space and have a very sparse undecorated window. The problem is it does not seem easy to do this. My initial thought was to just install two different browsers. For example use Firefox with all the toolbars and then set IE to show no toolbars. I think this is ok but I would like a cleaner solution. Maybe a plugin in Firefox that turns everything off easily or something.

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• Cloud Computing - Multiple Physical Computers, One Logical Computer

  - by Koobz

  I know that you can set up multiple virtual machines per physical computer. I'm wondering if it's possible to make multiple physical computers behave as one logical unit? Fundamentally the way I imagine it working is that you can throw 10 computers into a facility one day. You've got one client that requires the equivalent of two computers worth, and 100 others that eat up the remaining 8. As demands change you're just reallocating logical resources, maybe the 2 computer client now requires a third physical system. You just add it to the cloud, and don't worry about sharding the database, or migrating data over to a new server. Can it work this way? If yes, why would anyone ever do things like partition their database servers anymore? Just add more computing resources. You scale horizontally with the hardware, but your server appears to scale vertically. There's no need to modify your application's infrastructure to support multiple databases etc.

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• Cloud Computing - Multiple Physical Computers, One Logical Computer

  - by bundini

  I know that you can set up multiple virtual machines per physical computer. I'm wondering if it's possible to make multiple physical computers behave as one logical unit? Fundamentally the way I imagine it working is that you can throw 10 computers into a facility one day. You've got one client that requires the equivalent of two computers worth, and 100 others that eat up the remaining 8. As demands change you're just reallocating logical resources, maybe the 2 computer client now requires a third physical system. You just add it to the cloud, and don't worry about sharding the database, or migrating data over to a new server. Can it work this way? If yes, why would anyone ever do things like hand partition their database servers anymore? Just add more computing resources. You scale horizontally with the hardware, but your server appears to scale vertically. There's no need to modify your application's supporting infrastructure to support multiple databases etc.

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• Monitoring CPU Usage Over the Course of a Day?

  - by bobber205

  Are there any apps I an install on client machines that will generate a report for me what app used what % of the CPU. We have some machines that are running, at times, VERY slowly. The machine will run really poorly then boom, back up to full speed. There isn't usually enough time to check Task Manager real quickly to see what is running, not to mention the majority of the time there are people using the computer that don't know what the Task Manager is. ;) It would be really nice to take a look at some logs and see if, maybe, the anti virus is randomly taking alot of CPU for stretches of time. Or another application. Thanks! EDIT: This is for Windows XP. Sorry for the oversight. :)

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• Freebsd or Linux? as BGP router over 100mbps

  - by Yucong Sun

  I am building a server to act as a BGP border router for my 100mbps uplink in ISP. I needs these feature: 1) Dual stack BGP peering/routing (at least 100Mbps, maybe more). 2) Potential full internet BGP feed. 3) Some basic ACL functionality. The hardware is L3426/8G ram. NIC will be on-board dual port Broadcom 5716. I've worked with Linux extensively before and it seems to be able to handle 100mbps, but I heard FreeBSD is faster on networking stuff. Which one should I use? And do we have some performance benchmark numbers out there? Cheers.

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• modsecurity apache mod-security.conf missing

  - by TechMedicNYC

  Greetings Serverfaultians. I'm not a server guy as you can see from my noob score of 1 point. But maybe those more versed can help me. I'm using Ubuntu v13.10 32-bit Server and Apache2 v2.4.6 and I'm trying to set up and configure modsecurity and modevasive on an internet-exposed production/test server. I am trying to follow this tutorial: http://www.thefanclub.co.za/how-to/how-install-apache2-modsecurity-and-modevasive-ubuntu-1204-lts-server. But at step 3: Now add these rules to Apache2. Open a terminal window and enter: sudo vi /etc/apache2/mods-available/mod-security.conf This file does not exist. Any suggestions?

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• Block spam by using geoip filter?

  - by faultyserver

  We are looking for a way to be able to block spam based on geographic location by filtering using geoip. context: we rarely have any email correspondence outside of the USA, so we would like to block all incoming email outside the US except for maybe one or two countries. After a little Googling I have found a couple of solutions that may work (or not), but I would like to know what other sysadmins are currently doing or what they would recommend as a solution. Here is what I have found so far: Using PowerDNS and its GeoIP backend it is possible to use geoip for filtering. Normally this backend is used to help distribute load as a kind of load balancing but I dont see why it couldnt be used to kill spam as well? Possibly use the Maxmind lite country database and some scripting to do a similar job. Ideally what I am looking for is a solution that would handle decent load and scale well too...aren't we all! ;) Thanks in advance for your help! :-)

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• Make windows vista file explorer act normally

  - by user25866

  Is there some file I can remove or something I can do to globally ensure that windows visa/xp/etc doesn't do annoying things? Annoying things: 1) Hide the file extension 2) All these "meta" columns I could care less about in "details" view (rating, album, date taken, Assistant's name, Artist, 35mm focal length, City, Other City, etc...). All I want are Name, size, date created, date modified, and file extension. MAYBE file chmod settings. 3) That garbage in the left pane known as "favorite links." (Documents, desktop, photos, music, etc...) 4) Switching between detail view, large icon view, thumbnail view, list view, and tiles when I goto differnt folders, all I want is detail view, with the same columns every time. That's it. I shouldn't have to get third party software to make my file system browseable, but if I need to so be it... Why are all these settings buried away? It feels like I have to apply them onto each folder every time.

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• Slight network lag on Small Business Server 2008 R2

  - by Sir.Nathan Stassen

  I recently upgraded a network from a SBS 2003 server to a SBS 2008 R2 Server. Both I and users have noticed a slight delay in network applications and browsing network drives on the new server. It is minor, maybe a second or two at most. However I am wondering if anyone knows of anyway to optimize the networking to service requests sooner to the workstations. The network is running a 1 gig network with some 100 meg devices (mainly network printers). All workstations are XP SP3 Network software runs out of a shared folder mapped as a network drive, no sql databases. Server is a Dell Poweredge T610 with plenty of ram, cpu power, and storage.

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• How does java permgen relate to code size

  - by brad

  I've been reading a lot about java memory management, garbage collecting et al and I'm trying to find the best settings for my limited memory (1.7g on a small ec2 instance) I'm wondering if there is a direct correlation between my code size and the permgen setting. According to sun: The permanent generation is special because it holds data needed by the virtual machine to describe objects that do not have an equivalence at the Java language level. For example objects describing classes and methods are stored in the permanent generation. To me this means that it's literally storing my class def'ns etc... Does this mean there is a direct correlation between my compiled code size and the permgen I should be setting? My whole app is about 40mb and i noticed we're using 256mb permgen. I'm thinking maybe we're using memory that could be better allocated to dynamic code like object instances etc...

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• Why do I get Apps in Windows 8 listed as 'Not available' sometimes?

  - by keith

  What affects this, and if possible, how can I prevent this? Or maybe how can I get them to be available sooner or all the time? This pretty much happens to my game apps connected to Xbox live and a few others from time to time. It never happened before I updated the computer, but I haven't had the PC long anyway. Could it be that after updates that need a restart it does this as well (I've done two of those so far)? Anyhow, I'm frustrated, I keep clicking on a app and it not responding. The problem fixes itself at some point, but I have not been able to stare at my PC long enough to figure out how long it takes or what happened.

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• Remote monitoring with screen capture

  - by Anonymous

  Is there anyway i can perodically take screenshots of a remote computer using nagios? I am experimenting with Nagios, and i am trying to explore different monitoring. So my question is apart from using nagios to monitor cpu usage, bandwidth utilization, uptime etc.. can i monitor my worker's productivity by checking what is he doing on his computer in a form of image output. Being able to monitor processes would not be of much help to me, as i only know if he or she is running firefox.exe for example he maybe using excessive use of firefox for facebook or other stuff but he claims he is troubleshooting and looking for solutions on forums. I saw a check_vnc script but i am unable to install the requsite vnc server anyone succesfully tried the vnc script care to share how to go about it? If not anyother way to try this?

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• Wireless Repeating with two Netgear N750 (WNDR4300)

  - by jomo1911

  I have a Netgear N750 as my main router, which connects to the internet via a modem. I have a second Netgear N750 which I want to use to repeat the wireless signal of the main router. I logged in to routerlogin of my main router (192.168.1.1) and set up the "Wireless Repeating Function". I set it as the "Wireless Base Station" and filled in the MAC adress of my second Netgear N750. Then I logged in to routerlogin of my second router and set it up as the "Wireless Repeater", I gave it the IP 192.168.1.11 and filled in the MAC adress of the base station. During the setup of the second router (Repeater) I had to disable all security functions. If I connect to the repeaters' WLAN signal, I get no internet connection. Maybe you can help me, thanks

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• How can I specify nameserver's port number in osx? [duplicate]

  - by Cofyc

  This question already has an answer here: How is DNS lookup configured for OSX Mountain Lion? 2 answers In resolver manual, it said: The address may optionally have a trailing dot followed by a port number. For example, 10.0.0.17.55 specifies that the nameserver at 10.0.0.17 uses port 55. But it doesn't work, in /etc/resolv.conf or files under /etc/resolver/. 208.67.222.222.5353 Can I specify non-default port number for nameserver in osx? Update: osx don't use /etc/resolve.conf, but use files under /etc/resolver/. I have wrote a file dev with content '127.0.0.1' to route all dns queries for *.dev domains to a local dns server (127.0.0.). But I cannot specify dns server's port here. (It uses 53 anyway) Maybe there is no way to specify port number under osx?

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• How to detect a change in a background window

  - by Leonardo

  Hi, Let's say I have a chat window open in a web browser, and I'm waiting for a message from my partner, trying to do something else in the meantime. The chat window (not an installed program) will not alert me of an incoming message, nor will the task bar flash or anything. Is there any utility that can help me? In search of a solution, I came across AutoHotKey. There is a script called livewindows.ahk, which will show a piece of the window anywhere on the screen, but it won't alert me on a change. I'm not skilled enough to know how to store and compare e.g. every second's content of some window area. Maybe someone has invented this wheel? Thanks in advance for any hint or advice. Leonardo

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• Node.js server crashes , Database operations halfway?

  - by Ranadeep

  I have a node.js app with mongodb backend going to production in a week and i have few doubts on how to handle app crashes and restart . Say i have a simple route /followUser in which i have 2 database operations /followUser ----->Update User1 Document.followers = User2 ----->Update User2 Document.followers = User1 ----->Some other mongodb(via mongoose)operation What happens if there is a server crash(due to power failure or maybe the remote mongodb server is down ) like this scenario : ----->Update User1 Document.followers = User2 SERVER CRASHED , FOREVER RESTARTS NODE What happens to these operations below ? The system is now in inconsistent state and i may have error everytime i ask for User2 followers ----->Update User2 Document.followers = User1 ----->Some other mongodb(via mongoose)operation Also please recommend good logging and restart/monitor modules for apps running in linux

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• Premature end of script headers

  - by Tony

  I often get a "premature end of script headers" error in my apache log which results to an internal 500 error. I understand what the error message means - that my application did not give the browser the headers it needs (and maybe nothing at all), but the odd thing is that this does not happen all the time. It actually usually happens the first few times I go to my website after a deploy. Could this be a memory issue? Does anyone know how to trouble shoot this? My apache log isn't really telling me anything. I am running a ruby site using the rails framework on ubuntu hardy. thank you!

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• Can I monitor active user count on my iis sites?

  - by Dejan.S

  We are having problems with performance on our server that host our websites that the processor gets upp to 90%. I would like to monitor the amount of users active on your sites that are published on the iis. My question, is this possible? is there any software for this? EDIT current (like this second) visitor count on all the active websites on our iis REASON FOR THIS if i can get the visitor amount on the days the CPU is not overloaded and and compare it to the days it is then i atleast know that this CAN be a reason why this is happening and i can take it from there. Otherwise i can focus on the code on the sites, or maybe google crawler is causing this, there are manythings that can cause this you know? for me this is just a simple way of troubleshooting.

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• How to establish the real-time communication between Shopping cart running MySQL and Internal System Running PostgreSQL [closed]

  - by Andrew

  I am thinking about the way of establishing some-sort of real-time connection between MySQLpowered shopping cart and internal system that is running on PostgreSQL. Could you give me some sort of insight on this topic? For example, I can write some sort of csv export application, then enable remote MySQL for over the internet connection and then import csv to mysql directly from PC. Or upload csv and run cron on server. But this way of import-export causing delays; so I would like to link databased (or some msort). I have never done it before and would like to hear some opinions about this. Another way "just a thought" might to implement triggers that would initiate the update process via csv; but again, I would like to avoid csv. Do you have any good advise? Maybe some specific examples?

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• Keyboard shortcuts to control WinAmp

  - by Kip

  Some keyboards have a play/pause button built into the keyboard. I don't have one of those, but I'd like to set up a keyboard shortcut to do the same thing. I'd like the shortcut to work no matter what application has the focus. Is there a way to configure this in WinXP? Also, I'm using an old version of WinAmp (2.95). I'm not sure if that matters, as I thought these keyboard buttons worked universally somehow (but maybe I'm wrong?).

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• Best practice for system clock sync on KVM host

  - by Tauren

  I have an Ubuntu 9.10 server running as a KVM host with ntpd installed on it. The host system has the correct system time. At the moment I only have a single KVM guest, also Ubuntu 9.10 server. I do not have ntpd installed on it, and I just discovered the clock is about 6 minutes slow. It wasn't that way when it was installed about a month ago. I thought that I only needed to keep the host clock synchronized and that the guests used the host clock. But maybe that is a memory from using OpenVZ. I believe the reasoning was related to only the host could modify the physical system clock. Is running ntpd on both the host and all the guests the correct thing to do? Or is there something else that is preferred? How should I keep the guest clocks in sync?

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• OSX Keyboard Shortcuts in Dialogs?

  - by Dan Fabulich

  On Windows, every dialog box includes underlined letters that you can activate using the Alt key. I use these "Alt" keyboard shortcuts all the time; I'm missing them as I'm trying to switch to OSX. On OSX, all I can find is Tab navigation, which requires you to press Tab seven or eight times to get anywhere in most dialog boxes. (And even that is hidden by default: you have to enable "Full keyboard access" in the "Keyboard & Mouse" control panel to be able to Tab between buttons.) Is there some way I can get something like the Windows Alt accelerators for OSX dialogs? I'm willing to write Automator code, download/purchase software, etc. Specifically, I'm imagining maybe something where you do some shortcut command and then start typing the name of the button, and hit Enter to push the button...?

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• file-name encoding problems

  - by tenhouse

  I googled over this topic but couldn't find what I was looking for... the following "happend" to me: I had my files stored on a NTFS-USB Harddisk, because of space problems I moved them to an ext3 system....somehow the filename (content is still ok as far as I saw) encoding screwed up....my files look like the following now: Kküken <--- should have an "ü" Jäger <--- should be an "ä" Zwölf <--- should be an "ö" fünfte <-- should be an "ü" etc .... These are just examples, but already give me my first question Why has the "ü" two different representations? (Maybe I screw up, before I screw up and now I have a mixing of x different encoding-layers? :) ) I tried the following command: convmv -r -f UTF-8 -t ISO-8859-1 * This command work for some files (for example Zwölf) but not for all: iso-8859-1 doesn't cover all needed characters for: "fünfte" So Iguess it must be another encoding - but which? How can I find out this? And is there any way that I can still fix all of this?

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• Excel - Filling images using a reference image

  - by tjans

  I have a spreadsheet that I use to create baseball cards for a tabletop baseball game. There are about 20 cards on my sheet, and I'd like to add a spot where I can set the logo and have it reflect that logo in each card without having to update 20 different images each time I create cards for a new team (and thus, a new logo). Is there a way to automate this process similar to setting one cell equal to the value of another (=A4, for instance)? I think the images aren't part of a cell and they float on top of the sheet, but I had hoped there was a way either with a macro or other VBA function (or maybe something built-in) that would accomplish this.

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• Asp.net hashing (using codesmith) when upgrading from .net 2.0 to 3.5

  - by user34505

  Hi, I'm administrating servers running IIS 6, hosting a website on ASP.NET 2.0. Yesterday I installed .Net framework 3.5, and all my user authentication system was lost. Users can't log in, because their password arn't getting authenticated, maybe because the hash function has changed in 3.5??? I can't really get to the code, but I know it uses an extention called CodeSmith. Do you know of any break my upgrade the 3.5 ugrade could couse? Please help. Thanks.

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