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• benchmark tcp: ab or iperf like tool to send hex/binary/pcap data?

  - by olan

  Hello all, I have written a server in Twisted for a current project I'm working on, and now I need to test it. It receives TCP packets, with the payload consisting of just a serialised binary string. I want to be able to test the server for concurrency/throughput using the binary data as the payload, but can not find any tool that will allow me to do this. I tried iperf -F but it didn't work, as I think it was sending the binary/hex data as chars. I've also looked at ab which seems to be perfect - if only for http. As well as these, I've had a look at tcpreplay, but it doesn't perform any testing (or establish TCP connections) so it's not much use. Any help would be greatly appreciated as I'm rather stuck on this one!

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• Gitosis on Mac OS X (Snow Leopard)

  - by Shyam

  Hi, I have a Snow Leopard box, where I have gitosis installed (Warning: noob alert), added a git user and I am able to remotely login to the machine with ssh. Locally, I can 'clone' my created repositories, as I can 'clone' the gitosis-admin too. Works perfect. I clone these using the 'git' user. git clone git@my-remote-machine:reponame.git remotely logged in, what doesn't work: git clone git@localhost:reponame.git However on that same remote machine where the repositories live, I can't clone from the localhost. It asks for a password, which wasn't created as far as I know. What am I doing wrong? Thank you for your replies!

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• Google Chrome auto-clicker extension?

  - by Joel Murphy

  I'm looking for an auto-clicker that will auto click page elements in Google Chrome. Standard auto-clickers work fine, but I'd like to continue working on my computer without having to keep Google Chrome open. Does anyone know of any extensions that offer this functionality? Anything that allows me to specify an element to be clicked on, or set screen co-ordinates within a webpage and will click away until I decide to stop the script would be perfect. I've tried looking at macro extensions, but they don't seem to offer the functionality I want. Can anybody suggest a particular extension? Thanks in advance.

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• php server settings for restrict post queries

  - by Korjavin Ivan

  I have php script on hosting, which receive big data with ajax/post. Just now, after some works on hosting, I see that script is broken. I checked with curl: file temp1: user_avatar=&user_baner=&user_sig=.... 237 chars total, and curl -H "X-Requested-With: XMLHttpRequest" -X POST --data @temp1 'http://host/mypage.php' works perfect. But with file temp2: name=%D0%9C%D0%B5%D0%B1%%B5%D0%BB%D1%8C%D0%A4%%B0%D0%B1%D1%80%D0%B8%D0%BA%D1%8A&user_payed=0000-00-00&...positions%5B5231%5D=on total chars: 65563 curl -H "X-Requested-With: XMLHttpRequest" -X POST --data @temp2 'http://host/mypage.php' curl return nothing. Looks like a problem with apache/php/php.ini or something like that. I check .htaccess php_value post_max_size 20M Which other parameters I should check? Is it possible that %BO encode kill php/apache? Or total number of parameters (about 2800) ?

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• Word 2007, Adding Page Numbers to Landscape, 5.5 by 8.5 Booklet Style Document

  - by nicorellius

  I am publishing a 5.5 by 8.5 booklet. I created this document in Word 2007 and will be converting it to PDF. It looks good as is, but I can't seem to figure out how to add page numbers automatically to this document. In general, I know how to add page numbers using footers, etc, but this application is a bit different: I have two pages (5.5 by 8.5) on one landscape 8.5 by 11 page. See picture below: I guess I could manually add page numbers, but then getting the formatting perfect will be tough. Any ideas?

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• The best software for users internet usage

  - by nikospkrk

  Hi, We are a small business using a Vigor 2820 as the internet router, and we'd like to install a software that could report any internet usage from our users. I already tried the "official" software made by Draytek called "SmartMonitor", but is reliability is a real issue as it doesn't seem to keep capturing packets after working 3 to 6hours (randomly), whereas Wireshark keeps capturing packets after that amount of time. As I'm really fed up with this tool, I'm looking for other solutions but I still want the same features: users statistics, websites ranking, users traffic, ... I already enabled the port mirroring feature, so it would be perfect if you could suggest me a port mirroring-based software (ideally freeware). I thought I had found the good one with Etherscout, but it just doesn't launch. I am even open to a tool that would "just" make some reports based on Wireshark captured files (*.pcap). Thank you for any of your suggestion, Nicolas.

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• What's the weirdest thing you've ever seen a non-techie do to a computing device?

  - by googletorp

  I thought it would be fun to bring out the stories on what people have done throughout the ages with computers due to their sometimes, to put it politely, less than perfect grasp of technology. I'll start out with a little story from my high-school days. After graduation, a classmate of mine, who took IT and subsequently scored an A in the subject, was sent an e-mail by a friend. She replied to his mail: "I'm sorry, but I can't reply your mail, since I don't have your email address." Till this day I still can't understand why she gave such a weird reply as she was a bright girl although not a techie. Now, let's hear those other battle stories from the real world...

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• Taking ownership of trustedinstaller files?

  - by P a u l

  vista32-sp1: I am unable to delete some files on my system that were installed with 'special permissions' by 'trustedinstaller'. I find the usual help suggestion to use 'takeown' is not working, all I get is access denied. I refuse to believe there isn't some way to delete these files, or that microsoft has finally acheived their perfect security filesystem. This is NOT a case of a file being locked by a process. If this is all it was, I could solve this by myself. I know there are some recommended unlocking programs and they might do some sort of file system trick, but I would like to know what my possible direct actions might be. If a 3rd party program can 'unlock' a file, I want to know the mechanism. But like I said 'takeown' at the command line is not working for this.

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• Improving server security [closed]

  - by Vicenç Gascó

  I've been developing webapps for a while ... and I always had a sysadmin which made the environment perfect to run my apps with no worries. But now I am starting a project on myself, and I need to set up a server, knowing near to nothing about it. All I need to do is just have a Linux, with a webserver (I usually used Apache), PHP and MySQL. I'll also need SSH, SSL to run https:// and FTP to transfer files. I know how to install almost everything (need advice about SSL) with Ubuntu Server, but I am concerned about the security topic ... say: firewall, open/closed ports, php security, etc ... Where can I found a good guide covering this topics? Everything else in the server... I don't need it, and I wanna know how to remove it, to avoid resources consumption. Final note: I'll be running the webapp at amazon-ec2 or rackspace cloud servers. Thanks in advance!!

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• Failed reverse DNS and SPF only when using Thunderbird!

  - by TruMan1

  I have a reverse DNS and SPF records correctly setup for my mail server. Sending webmail from it works perfect. The problem is when Thunderbird sends out emails, it is using the client's IP address for the hostname. I have SMTP authentication and specified my mail server's as the outgoing SMTP. Mail is being sent, but it is not "signing" the email with the mail server's IP address.. it is using the client's. Is there any way to fix this? This is the spam error I get when sending from Thunderbird: Spam: Reverse DNS Lookup, SPF_SoftFail

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• Join .doc files into one .doc (with keeping the original format of every document)

  - by Shiki

  I have about ~50 .doc files, that look perfect (they are extracted with Able2Extract). Now I want to join these 50 files into one huge .doc. I've tried using Word's in-built "Insert" feature, but that messed up the whole format. I want to keep everything I have. Like just document1 - document2 - document3. Nothing "intelligent" or "smart" needed during the conversion, just the capability of joining them. (Thus making them all searchable, that's the ultimate aim.) I don't mind if the method/solution applies a single blank page at every document end either.

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• AWS ELB as backend for Varnish Accelerator

  - by addisonj

  I am working on a large deployment on AWS that has high uptime requirements and variable loads throughout the day. Obviously, this is the perfect use case for ELB (Elastic Load Balancer) and autoscaling. However, we also rely on varnish for caching of API calls. My initial instinct was to structure the stack so that varnish uses ELB as a backend which in turn hits an appGroup. Varnish -> ELB -> AppServers However, according to a few sources that isn't possible as ELB constantly changes the IP address of its DNS hostname, which varnish caches on start, meaning changes to the IP won't be picked up by varnish. Reading around however, it looks like people are doing this so I am wondering what workarounds exist? Perhaps a script to reload the vcl periodically? In the case of where this is really just not a good idea, any idea of other solutions?

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• Creating CNAME to delegated domain

  - by Starsky

  We are trying to configure F5 to do load balancing on 4 sub domains similar to this article... http://support.f5.com/kb/en-us/solutions/public/0000/200/sol277.html For Example prod.wip.example.com. NS F5NS1.example.com. prod.wip.example.com. NS F5NS2.example.com. test.wip.example.com. NS F5NS1.example.com. test.wip.example.com. NS F5NS2.example.com. Then we want to make cnames instead of delegating individual sub-domains, e.g. myapp.example.com CNAME prod.wip.example.com Microsoft DNS gives an error when I attempt to make the CNAME... dnscmd ns1 /recordadd example.com myapp CNAME myapp.prod.wip.example.com. Command failed: DNS_ERROR_NOT_ALLOWED_UNDER_DELEGATION 9563 (0000255b) The error makes perfect sense, but does anyone know of a way around it? Or are my NS records incorrect for this setup? Thank you, -Steve

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• Excel: making line charts so the line goes through all data points

  - by Mike

  Hi I've got data based on over 50+ years for various products. Unfortunately not all products have data for each year. I've created a line chart to show the movement (quantity sold) of these products over the years. It works well, except where the data points are too far apart i.e. 1965 and then 1975. For some reason there is no line. It's not perfect data because of the missing years, but I can live with that, I just want to see the trend, and not just sporadic dots; squares or crosses. Any help or links greatly appreciated. Mike

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• Trouble accessing network drives in Windows 7

  - by Warlax

  Hi, Recently purchased a LaCiE network drive. Connected it to my router, configured it, added a user for myself. Installed the "Network Assistant" that came with it - no problem. Went to My Computer Network, found the network drive - was prompted for a login/password to see the contents, types \user and password (leading slash to get rid of DOMAIN) and accesses contents. There is one open share that I can access/mount without problem and there's another share with my user name as set-up via the network drive's web-based config. Double-clicked on that, prompted again. user/password doesn't work! It says I have no permissions but the user/pass combination is PERFECT. Some Windows Vista posts talk about a Local Security Policy menu - but that's nowhere to be found. Any ideas? (Windows 7 Professional BTW).

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• Install Previous Version of PHP Package from Debian Testing Using Apt

  - by Metric Scantlings

  Is there a way to install an older Debian testing repository version of a package using apt-get? Specifically, I am looking to install the latest version of PHP 5.2.x on Debian Lenny. The last time I set up an environment, 5.2.12 just happened to be the version in Debian testing. That was perfect, convenient. Now, testing is at 5.3.x which won't work for my purposes, and my attempts at sudo apt-get -t testing install php5=5.2.12* are answered with E: Version '5.2.12*' for 'php5' was not found.

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• LIVE Video Streaming with Nginx + PHP-FPM / Process Timeout

  - by user3393046

  I have a live video streaming in my server using nginx + php. the php file reas a live streaming and it directly sends it to the client. I have only one problem. The problem is that i want each request to be in a new process of php-fpm. In a few words i don't want to have idle timeout for a process but instead i want them to close instant when a request is being closed. With idle timeout i have huge problems which are hard to explain at the moment but i'm really sure that if i disable the idle timeout everything will be perfect. Is there any way to do this? I'm using on demand php-fpm

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• Setting up SSL with 389 Directory Server for LDAP authentication

  - by GioMac

  I've got 389 Directory Server running on RHEL 5 with groups, users, posix etc. RHEL clients are authenticating users with LDAP - no problems, everything works perfect, but passwords are sent in plaintext and are visible with network sniffer. So, decided to run with SSL: Created CA - got both private and public CA certificates Using CA certs: generated both of private and public certificates and combined (1st file) for 389DS according to 389DS certificate request, imported with CA public cert to 389DS from graphical console (2nd file). Enabled SSL in 389DS On the client, using authconfig-gtk enabled SSL for LDAP, specified only CA public certificate Doesn't work. Howto? What is the best way to integrate safely?

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• Reliable Backup Solution for Linux for Complete System Restoration

  - by Chris S

  What's the best backup solution for Linux that can completely restore the entire filesystem to a blank harddrive (including partitioning) after an old harddrive dies? I'm currently running a few Ubuntu machines, some with RAID-1 and others without RAID (mostly laptops). I'd like to implement a backup solution that can take incremental snapshots of the entire filesystem, so that if I were to replace all the harddrives in a machine, I could use the backup to restore a perfect copy of the previous filesystem. Unfortunately, nearly all the backup solutions I've found seem to be glorified rsync scripts, which only backup some files, and have no easy way to restore once the entire filesystem is gone. Some of the more complicated solutions, like Bacula, might do what I need, but require a complicated server/client setup and are notoriously difficult to maintain. I've heard that Apple's TimeMachine utility has this ability, and I've had similar success taking differential disk images with Acronis True Image on Windows, but of course neither of these work on Linux. Is there anything comparable for Ubuntu?

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• IIS6 cannot start additional processes when page request is called from other than localhost

  - by awe

  I have a web application dll that is running under iis6. This is starting a number of processes to be able to handle more than one request at the time. This is working perfect in a numbers of installations. In this particular installation, it runs perfectly when initialized by a call in IE on the server using http://localhost/apppath . The problem is when the processes are from another location, i.e. another computer on the same network initialising the call throught http://servername/apppath . In this case, the initial dll running under iis is executing (proved by logging), but it fails to initialize the additional processes. If the additional processes are already initialized by a call from localhost, it also works when called from another machine (in this case, it is just attached to the existing processes).

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• Trying to get a PC to boot off a bootable SD card that is inside an USB attached Android device.

  - by Cyril

  First, I'd like to make myself look less a madman than I may have appeared to be. I wanted to have a bootable USB stick with me at all times, but it's less convenient because it's an extra object and it's easier to lose, forget etc. Then I thought, I have an Android phone, and it has a micro SD in it; perfect. Not all PC's can boot off a card reader, but the phone itself is a card reader when attached as a disk drive. Or at least so I thought. Turns out that my netbook BIOS (tested on Asus eeePC) refuses to see it as an external harddrive; it only recognizes it as a generic USB device and doesn't offer an option to boot from it. The device has a name "Android phone" or smth, so it seems to me that it doesn't work as a "pure" card reader, and instead still manifests itself as a phone. Can it be somehow overridden?

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• Bandwidth monitor for apache websites

  - by bmaynard

  I am after a web application that will parse apache log files and record how much bandwidth the user has used. We have several virtual hosts that have custom log files and the I/O is recorded at the end of the logfile. However I can't find an application that will parse multiple log files and display a summary for each site. I believe awstats can do this but I want to be able to see all of my clients in one list. If there is something that integrates into cacti then that would be perfect.

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• Why is group write permission ignored in Ubuntu?

  - by NorthPole

  I want my user to have full access to the local Apache root folder, and I also want the Apache user to have full access to the same folder. What I did was create a new group called DevGroup and I added my user and www-data there. Also I changed the permissions to 770 to allow full group access. But now it won't allow me or the Apache user any kind of access to the folder. Here is what I get with ls: drwxrwx--- 12 root DevGroup 4096 Sep 27 17:34 testFolder Which seems perfect but when I try as a user to access the file I get this: var/www$ ls testFolder/ ls: cannot open directory testFolder/: Permission denied Also when I try to access a page in the folder from a browser: [Thu Sep 27 17:47:16 2012] [error] [client 127.0.0.1] PHP Fatal error: Unknown: Failed opening required '/var/www/testFolder/foo.php' (include_path='.:/usr/share/php:/usr/share/pear') in Unknown on line 0 What's the problem and how can I fix it?

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• How to sync Google Chrome Web Browser and Google Bookmarks

  - by Cawas

  Google Chrome has its own bookmarks that are synced across browsers using Google Docs. And Google also have Google Bookmarks that works very well with google search in itself. It has been a long discussion in many places on why they don't get along. I know similar questions have been asked, but I want to leave this open until a good solution comes around, unlike this one. So, is the perfect way to sync google chrome bookmarks and google bookmarks already born? Next step: sync with delicious!

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• I noticed the answer to the Aug 2009 question of using VBA to set Custom Flag values

  - by Gary

  We are actively using the Follow Up mail feature to assign users to particular mail follow up items. Although mail item follow ups are generally the province of the individual user, by changing the flag value from "Follow Up" to "User name", we can see each other's follow up tasks and group on responsible party. Currently we accomplish the Flag value change manually. My sense is the easiest way to perfect the process is a separate macro for each user. Along the lines of the macro to change the star/end due date to end of month, please define the macro to re-assign the Flag value for each highlighted mail item (previously assigned by default). Thank you very much.

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