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  • Troubleshooting iptables and configuring it to drop the priority of long-term connections

    - by intuited
    I'm somewhat familiar with the general concepts of iptables, and would like to learn it in more detail. I'm hoping that my learning experience can also be useful. The situation: I'm running dd-wrt on my router. Despite its purported QoS skills, I'm still seeing connection latency shoot up hugely whenever there's an ongoing http connection, eg some large download. Under such conditions, it can take 10 seconds or more to load a basic webpage; sometimes the connections are dropped entirely. I've tried adjusting the parameters, dropping the allotted bandwidth for up and download to well under my limit, but nothing seems to work. dd-wrt is configured to use HTB as the QoS algorithm; HFSC, although presented as an option, seems to cause the router to crash, and is rumoured to not actually work on any linux system. I'd like to be able to troubleshoot this issue and hopefully improve the settings that dd-wrt is using, but I'm finding the learning curve a bit overwhelming. For starters I am not sure what HTB actually specifies: is this a set of iptables commands, or do some of those commands specify how HTB is to be used? I would like it to prioritize based on protocol the way that it already supposed to, and in addition I'd like to have it drop the priority of connections which have a high total byte count, say over 400KB. Also tips on utilities that can be run under dd-wrt to get more info on what's going on in there are appreciated. I've tried to get iftop to work but there were issues running curses. I'm leaning towards replacing dd-wrt with openwrt; comments on this strategy are also welcome. I suspect that I would be well advised to get a second router as a standin before trying that. It may be worth noting that my total bandwidth is pretty limited (256Kbit/s).

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  • Default permissions for courier imap folders

    - by JoeCoder
    I'm using courier imap. When a mail client creates a new folder, it's created on the filesystem with 640 permission. I need it to be writable by the group, or 660. I currently have /etc/courier/imapd IMAP_UMASK=007, but that's not enough. I'm not sure what else to try. Any ideas? I'm using ubuntu server 12.04. EDIT: I added a 50pt bounty to this. For an acceptable answer, I need a way to make it work from a package in a standard repo. If I download source and compile it myself, it won't be automatically kept up to date with security fixes. If I don't find a better answer, I'll add code to the admin script to call another sudo approved script to chmod -R the whole directory before every change. But this is kind of hack-ish.

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  • Problem with jQuery in Internet Explorer 8

    - by Tim Cosgriff
    I am trying to get my jQuery functions to work on IE8. I am loading the library from google's servers (http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js). The $(function(){}) is never called. Instead, I get an error "Object expected". I opened the developer and ran "typeof $" in the console, and it came up as "undefined". I have tried going to other sites that I know use jQuery (jquery.com), and those all work, is there something I might be missing here?

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  • Limit which processes a user can restart with supervisor?

    - by dvcolgan
    I have used supervisor to manage a Gunicorn process running a Django site, though this question could pertain to anything being managed by supervisor. Previously I was the only person managing and using our server, and supervisor just ran as root and I would use sudo to run supervisorctl restart myapp when needed. Now our server has to support multiple users working on different sites, and each project needs to be able to restart their own gunicorn processes without being able to restart other users' processes. I followed this blog post: http://drumcoder.co.uk/blog/2010/nov/24/running-supervisorctl-non-root/ and was able to allow non-root users to use supervisorctl, but now anyone can restart anyone else's processes. From the looks of it, supervisor doesn't have a way of doing per-user access control. Anyone have any ideas on how to allow users to restart only their own processes without root?

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  • Apache + mod_php Ignores SUID?

    - by profitphp
    Does apache or mod_php cause a SUID flag to be ignored when using the shell_exec command from a web accessed PHP script? I'm trying to allow a web accessible PHP script to rename some files which the apache user does not have write access to. I don't want to give it access to write these, as I only want one controlled script to be able to do this. I'm trying to avoid SUDO and the config needed or the headache/insecurity of using a que called from a privileged users cron, and it seemed like I should be able to use SUID to accomplish this. If you need more info, I've got a similar question open over here, but I think its too detailed and people are not seeing what I'm asking. http://stackoverflow.com/questions/6432931/suid-issues-with-php-apache

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  • pip install fails on guest Linux Mint 15

    - by synergetic
    On my Windows 7 PC, I installed VMware VM for Linux Mint 15. Windows PC is behind corporate firewall /proxy server. Now inside Linux I issued: sudo apt-get install python-virtualenv Then created ~/projects folder and python virtual environment: mkdir projects cd projects virtualenv venv Then activated my virtual env: . venv/bin/activate So far no problem. Then tried to install python libraries, for example markupsafe: pip install markupsafe It throws an error: Cannot fetch index base URL https://pypi.python.org/simple/ Could not find any downloads that satisfy the requirement markupsafe No distributions at all found for markupsafe Storing complete log in /home/me/.pip/pip.log Inside pip.log I found: <urlopen error [Errno 104] Connection reset by peer> Installing any other library throws similar error. What's wrong here?

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  • My datacard goes online but doesn't gives internet access (Fedora 14).

    - by Harsh
    I am using MTS datacard. I have usb_modeswitch installed and have configured the wvdial.conf file. When I do sudo wvdial cdma, the IPs and DNS addresses are also allocated but I still cant access internet. The reply to dmesg | grep -e 'tty' -e 'modem' is: [ 0.000000] console [tty0] enabled [ 11.098238] USB Serial support registered for GSM modem (1-port) [ 11.098352] option 6-1:1.0: GSM modem (1-port) converter detected [ 11.102170] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB0 [ 11.102207] option 6-1:1.1: GSM modem (1-port) converter detected [ 11.102334] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB1 [ 11.102364] option 6-1:1.2: GSM modem (1-port) converter detected [ 11.102488] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB2 [ 11.102522] option 6-1:1.3: GSM modem (1-port) converter detected [ 11.102643] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB3 [ 11.102672] option 6-1:1.4: GSM modem (1-port) converter detected [ 11.102793] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB4 [ 11.103074] option: v0.7.2:USB Driver for GSM modems Can anyone tell me what shall I do?

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  • Manually start scheduled launchd job

    - by Pascal
    On our Mac OS X (10.6) Server we have setup several backup scripts that are controlled by launchd and launched at specific times. For this we have defined StartCalendarInterval and this all works very well. Now it happens that I would like to start one of these jobs out of schedule, but this does not start the job (but also does not give an error/warning): sudo launchctl start org.job-label The manpage of launchtl states that start is intended to test on-demand jobs, no word of scheduled jobs. Is there a way to kickstart scheduled jobs?

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  • How to save HTML5 canvas?

    - by bebraw
    Currently I am using Canvas2Image to save the content of my HTML5 canvas. It doesn't appear to work in Google Chrome, however. Any ideas on how to work around the issue are welcome. :)

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  • Reset Mac OS X (Snow Leopard) File Permissions -- All Files

    - by Frank
    Is their a script or process completely reset all file system file permissions to factory default? (Less restoring from a image backup or reinstalling the OS). This would include I've affected all files from / to Applications and home folder and all contents. (Everything) I've tried to use the Disk Utility's First Aid 'Repair Disk Permissions' but it didn't seem to touch or affect everything - some but not all. I've ran it twice so far... I've seen this but it's not quite the something. Fixing mac user file permissions, not the system The reason for all of this is I accidentally ran a chmod on all files (as sudo). Working too fast, now I'm in a hole.

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  • How can I run Devel::Cover under mod_perl2?

    - by codeholic
    Unfortunately, Devel::Cover does not yet work with threads. It doesn't work with prefork either. Being use'd in startup.pl, Devel::Cover issues Not a CODE reference. END failed--call queue aborted. perl 5.8.9, Apache 2.2.13. My OS is FreeBSD, if that matters. The same problem is reported for win32.

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  • Horizontal SlideUp SlideDown with Scriptaculous

    - by Yako
    Hello ! You may know the scriptaculous SlideUp effect. Well, It slides up a div vertically as a closing effect. I would like to make it work horizontal. There is an option for this : scaleX:true, scaleY:false But it doesn't work fine : the div jumps down before closing... Does anyone know how to use the slideUp effect for horizontal sliding ? Thanks

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  • Alternate way to connect a vpn through a MIFI

    - by questor
    This has gotten to be a major problem at our company and depending on who I ask, the problem either does not really exist (mfr. and vendor) or is insoluble ( according to most users including techs who know how to prove their point). The problem involves getting a normal Windows 7 system to connect to a normal Server 2008 R2 Server over a cellular router (usually called a Mifi). A very few brands/models appear to work but the majority cannot make the connection. Since it is a cellular device, there are many variables that come into play and I wondered if anyone had ever found a consistent way to either make one work or else prove to the providers that their equipment was at fault. They all specifically state “VPN use” on the sales brochures. But few if any work. And those that do are not reliable. From a standpoint of pure knowledge, I just wondered if anyone knew the real reason why they fail? Pptp, L2tp, IPsec doesn’t matter. I have not tried Shrew or OpenVPN and am using strictly MS Windows protocols. Plenty of Google Searches back up my complaints but none seem to be any closer to knowing "why" they fail, just that they do. This is a "quest for knowledge"question. I don't expect a solution. Just a reason for the problem if anyone has any ideas.

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  • Android VideoView LinearLayout.LayoutParams

    - by Chris
    I am playing a video using VideoView in my app. When I play it on Droid with linearlayout params FILL_PARENT, FILL_PARENT, it plays well. The same params do not work well for a myTouch. What params can I use that will work well with most devices? Thanks Chris

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  • forward ssh ports on EC2

    - by Will Glass
    I have an SSH server on a private subnet within an EC2 vpc listening for ssh on port 9022 I also have a nat instance (standard Amazon EC2 nat) on a public instance. I would like to forward incoming SSH connections (port 9022) to my nat to the internal server (port 9022). I tried this, but it didn't work: sudo iptables -t nat -I PREROUTING -p tcp -i eth0 --dport 9022 -j DNAT --to-destination 10.0.2.11:9022 I verified that 10.0.2.11 is listening on port 9022. (I can telnet). I verified my security group allows incoming port 9022. I verified that /proc/sys/net/ipv4/ip_forward is 1. What am I missing? Edit: Turns out this was correct after all. I had a mistake in my security group.

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  • help with jquery ajax and templates in asp.net mvc

    - by NachoF
    So I have a complex form for an IncomeDeclaration. Its going to display a textfield GrossIncome for each Activity that the IncomeDeclaration is related to... this all gets done on the server and works just fine.... the problem is. The User should also be able to add Activities on the fly.. through javascript... so when the user clicks on Add Activity a Dropdown and a textfield must be appended to the bottom the activities list... heres what Ive got so far <tbody id="activities"> @Html.EditorFor(model => model.income.EconomicActivityIncomeDeclarations) </tbody> </table> <a href="#" id="add_activity">Agregar Otra Actividad</a> </fieldset> <script type="text/javascript"> $("#add_activity").click(function () { $.getJSON('/IncomeDeclarations/GetEconomicActivities', function (data) { var select = new Select(); var data = new Array(); for (var i = 0; i < data.length; i++) { var option = new Option(data[i]["name"], data[i]["i"]) //should do something here } //should call the template and append to #activities }); }); </script> <script id="template" type="text/x-jquery-tmpl"> <tr> <td><select name="income.EconomicActivityIncomeDeclarations[${SomeNumber}].EconomicActivityId"> ${MyOptions} </select></td> <td><input type="text" name="income.EconomicActivityIncomeDeclarations[${SomeNumber}].GrossIncome" /></td>> </tr> </script> } The name attribute for both the select and the text_field is key for this to work... otherwise modelbinding wont work... I would think that if the SomeNumber variable is set to new Date.GetTime() model Binding should work just fine... I actually dont see the need of ajax for this but thats another topic.. I just havent figured out a way to do this without ajax... right now I want to get the template to work and append the form elements to the bottom of the list.

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  • Unable to configure Ruby with readline

    - by Liam Berg
    1) ./configure --prefix=$HOME/.packages --with-readline-dir=$HOME/.packages 2) configure: WARNING: unrecognized options: --with-readline-dir I am trying to setup the most up-to-date version of Ruby on my webhost (I do not have sudo access). Line 1 is the configure command I used for Ruby and Line 2 is the first printed line after executing 'configure'. I've googled this issue and found other people with the same problem but there aren't any real solutions. There are no warnings or errors when configuring/compiling readline-6.1. I am pretty stumped, any help/insight would be greatly appreciated. Thanks ahead of time.

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  • How does one quickly access ruby and rails documentation when using vim?

    - by 46and2
    Hey all, What method are vim users out there using to quickly access documentation for both ruby and rails (other than switching to the browser to use ruby-doc or railsapi?). I was trying to adapt this script (http://vim.wikia.com/wiki/Online_documentation_for_word_under_cursor) to do the trick however it's only going to work if the cursor is over a class name and I'd like it to work with both class and methods. Thanks.

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  • Safari's location bar (auto-suggest and web search)

    - by Lri
    Auto-suggest don't seem to work for queries with spaces. Am I missing something? If you select an item from the suggestion list that was matched by its title, the title is filled in before the address. Can you change it to work like in other browsers? SMRT disables searching by title completely. Can you combine Top Hit, History and Bookmarks into a single section? The preferences starting with DebugSafari4 don't work anymore. (Like DebugSafari4IncludeFancyURLCompletionList.) Can you direct unresolved addresses to something like google.com/search?q=?&btnI instead of ?.com? Like by changing keyword.URL in Firefox. Can you remove or hide the web search field? In Camino, Cruz and Fluid it can be resized to zero width. You can't circumvent the normal maximum ratio with InputFieldWidthRatio. AddressBarIncludesGoogle doesn't appear do anything in the current version. Are there fixes or workarounds to any of these? I'm lumping these issues together, because they are closely related — a lot of them were introduced when the location bar was redesigned in Safari 5. I'm also hoping to find something like an extension or a plugin that would replace the standard location bar.

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  • Problems starting MySQL on Mac OS X

    - by Jon
    I am not able to start MySQL server on Mac OS X 10.4.11. MySQL was installed using Macports. MySQL was running fine until it suddenly died without any obvious reason. When running "mysql", I get the error message: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/opt/local/var/run/mysql5/mysqld.sock' (2) If I try to start MySQL manually, I get the following error message: sudo /opt/local/share/mysql5/mysql/mysql.server start Starting MySQL/opt/local/share/mysql5/mysql/mysql.server: line 159: kill: (636) - No such process ERROR! In /etc/mysql/my.cnf I have: socket = __PREFIX/var/run/mysqld/mysqld.sock But the path "opt/local/var/run/mysqld/" does not exist on my system. I tried to change the socket path to "__PREFIX/var/run/mysql5/ mysqld.sock" (which is where the socket is located). Unfortunately, this did not help either. Owner and Permissions for /opt/local/var/run/mysql5/ are correctly set. Any suggestions on how to start MySQL again? Thanks for your advice.

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  • Syncronization between folders MAC OS Lion

    - by Andre Carvalho
    I have an iMac at home and I use a Macbook pro for work. I also have a time capsule at home containing my main folder with my main files. I use it as a NAS besides the Time Machine backup tool. I have several personal files I need to be accessing both at home and at work. My wife, who works at home, uses sometimes the same .XLS files and .DOC files I might have used during my day at work, away from home. My question is: Is there a software, or tool that a I can use to sync my iMac and my MB Pro folders? Remembering that: There might be a chance that my wife and I have changed the same files during the day, so the files would have to be merged so none of the information added by either me or my wife would be lost. The software/tool that would be installed on the MB Pro would need to mount the Time Capsule volume so it could locate the main folder on it. It has to be done automatically when my MB is at home ( with a schedule option ); I have tested some softwares like synctwofolders and Chronosync but none fulfilled all my needs. The first couldn't mount the Time Capsule Volume and didn't have the many schedule options. I really liked Chronosync, but it doesn't merge the files. When it detects a conflict ( for instance: my wife changed a .DOC file on the iMAC and I changed the same file on the MB it asks you to choose which version you want to keep instead of allowing you simply to merge them ). I don't have much experience with automator or scripts but maybe you can give me a hand with that.

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  • How to use MongoRegex (MongoDB C# Driver)

    - by Hery
    Has anyone have any idea how to use MongoRegex for the document search? I attempted this, but returns nothing back: var spec = new Document(); spec.Add("Name", new MongoRegex("/" + searchKey + "*/", "i")); collection.Find(spec) Wondering why it doesn't work, I tried to execute following command from the console: db.things.find({"Name":/john*/i}) /* WORKS */ db.things.find({"Name":"/john*/i"}) /* DOESN'T WORK */ Is that possible that the driver applies double quotation to the regex? Thanks..

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  • unable to ping hostname, but \\hostname\\c$ works!?

    - by ciscokid
    I'm having a strange issue on my initial lab setup. Situation: Host with OS Server 2008 R2 64bit, on this host a Virtual Machine in Hyper-V with OS Server 2008 SP1 32bit. The virtual machine has a fixed ip, and is referring to itself for the preferred DNS Server (dns server role has been installed). The host has tcp/ip set to automatic (so automatic ip from router, and dns/gateway = router). Both are able to ping each other on IP address (same ip range). Both are NOT able to ping each other on hostname (sounds logic because virtual machine dns server does not yet have a dns record for the hostmachine). But here's the strange thing: I am able to set up a working network mapping on the Virtual Machine to the host: \hostname\c$. The first thing I thougt was 'something' is blocking the ping request, so I completely disabled Windows Firewall on both Virtual Machine and host. Still pinging on hostname in both ways didn't work, yet I am able to access the network mapping on hostname. There is no extra software installed on both systems (clean windows server 2008).Can someone tell me what is causing this? I always thought: ping on IP address works = network mapping on IP address works. Pinging on hostname doesn't work = network mapping on hostname doesn't work neither. Where am I wrong? Looking forward to your advice!

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