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• Dns caching for sockets

  - by Poma

  I'm connecting to some websites through socks proxy server. In my case its very good to implement dns cache, so proxy don't need to resolve website's ip address. So, I performed DNS lookup, but don't know where to supply IP address. mySocket.Connect uses proxy's ip address so it isn't right place. I tried to place it in http header GET http://11.22.33.44/index.html HTTP/1.1 - this doesn't work (even in browser) since website is on virtual hosting. It seems that Host header is right place for resolved ip address. Am I right? Will proxy resolve host name (since it's still there in GET header) or not?

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• Using emacs across many hosts

  - by mbac32768

  On a daily basis I: use multiple workstations running either Linux, Windows, or MacOS X edit files on additional Linux hosts that are not any of the workstations mentioned above The only common element here is that the internet connects all of these hosts: workstations and servers. I can keep all of the config files in sync on my workstations too and can run an X server on all of them. What's the right way of running emacs? I don't want to sacrifice any features. In my ideal world I can type 'emacs foo.txt' on a remote host and some magic happens via X forwarding to display the file in my workstation's existing emacs session. Non-solutions tramp: when I'm manipulating a remote host an editor is just part of my workflow. I need a terminal open so I can run other commands quickly. tramp is all wrong for this. ncurses emacs: sucks, I want the graphical kind If you don't have a positive answer to my question, please don't just guess. Thanks.

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• Exposing headers on iPhone static library

  - by leolobato

  Hello guys, I've followed this tutorial for setting up a static library with common classes from 3 projects we are working on. It's pretty simple, create a new static library project on xcode, add the code there, a change some headers role from project to public. The tutorial says I should add my library folder to the header search paths recursively. Is this the right way to go? I mean, on my library project, I have files separated in folders like Global/, InfoScreen/, Additions/. I was trying to setup one LOKit.h file on the root folder, and inside that file #import everything I need to expose. So on my host project I don't need to add the folder recursively to the header search path, and would just #import "LOKit.h". But I couldn't get this to work, the host project won't build complaining about all the classes I didn't add to LOKit.h, even though the library project builds. So, my question is, what is the right way of exposing header files when I setup a Cocoa Touch Static Library project on xCode?

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• WCF hosted in a Web application and compatibility mode

  - by DotnetDude

  I have a WCF service hosted in a web application (IIS). I need to expose 1 end point over wsHttp and the other over netTcp. I am on a IIS7 environment that makes it possible for me to host non HTTP based services. Anyways, when I browse the .svc file using a browser, I get the error: The service cannot be activated because it does not support ASP.NET compatibility. ASP.NET compatibility is enabled for this application By googling, I realized that WCF runs in two modes - Mixed and ASP.NET compatible. When I apply the attribute [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] However, it appears that once I apply this attribute to the Service Contract implementation, I cannot use a non HTTP binding. How do I set it up so that: I can support non HTTP endpoints I can host the service on a Web app I don't create multiple services one with aspnet compatibility turned on and the other turned off

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• Can I turn off an Apache Directive then turn it on in an include?

  - by javafueled

  I have a VirtualHost block that includes common configuration items, one directive is ProxyPreserveHost. Can I "procedurally" turn off ProxyPreserveHost for a Rewrite directive then have the include turn it back on? For example: <VirtualHost *:80> ServerName www.blah.com ... ... ProxyPreserveHost off RewriteRule /somepath http://otherhost/otherpath [P] Include /path/to/file/turning-on-ProxyPreserveHost </VirtualHost> The otherhost is on a CDN and preserving the host is creating some name resolution issue that is not allowing the proxying of content in the host namespace. ProxyReserveHost is only allowed in a Server Config or VirtualHost. It doesn't look like I can selectively turn it off for the ProxyPass and ProxyPassReverse directives (encapsulated in the proxy flag of mod_rewrite).

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• how to feed a file to telnet

  - by knittl

  hello community, understanding http and headers i played around with telnet to send requests. to not type everything again and again and again i thought i'd write a small textfile with all the commands i need. my file is as simple as follows: GET /somefile.php HTTP/1.1 Host: localhost i then try to feed it to telnet with io-redirection: $ telnet localhost 80 < telnet.txt but all output i get is Trying ::1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host. what am i doing wrong?

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• Problem with starting OpenOffice service (soffice) from Java (command working in commandline, but no

  - by Shervin

  I want to exceute a simple command which works from the shell but doesn't work from Java. This is the command I want to execute, which works fine: soffice -headless "-accept=socket,host=localhost,port=8100;urp;" This is the code I am excecuting from Java trying to run this command: String[] commands = new String[] {"soffice","-headless","\"-accept=socket,host=localhost,port=8100;urp;\""}; Process process = Runtime.getRuntime().exec(commands) int code = process.waitFor(); if(code == 0) System.out.println("Commands executed successfully"); When I run this program I get "Commands executed successfully". However the process is not running when the program finishes. Is it possible that the JVM kills the program after it has run? Why doesn't this work?

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• Securely persist session between https://secure.yourname.com and http://www.yourname.com on rails ap

  - by Matt

  My rails site posts to a secure host (e.g. 'https://secure.yourname.com') when the user logs into the site. Session data is stored in the database, with the cookie containing only the session ID. The problem is that when the user returns to a non-https page, such as the home page (e.g. 'http://www.yourname.com') the user appears to have logged out. I believe the reason for this is that a separate cookie is stored for each host (www vs. secure). Is this correct? What is the best secure way to persist the session between both the http and https sections of the site? Does anyone know of any plugins that address this problem? The site runs on Heroku.

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• "The provider is not compatible with the version of Oracle client"

  - by psyb0rg

  I just put my asp .net web service on a remote host. The service accesses an oracle db on my local machine. The service worked fine when it was running on localhost but since moving to a remote hos, I get The provider is not compatible with the version of Oracle client at Oracle.DataAccess.Client.OracleInit.Initialize() at Oracle.DataAccess.Client.OracleConnection..cctor() --- End of inner exception stack trace --- at Oracle.DataAccess.Client.OracleConnection..ctor(String connectionString) at.... I know the error is related to the data provider version running on the server/client. In my case, the only dll I referenced in the project was Oracle.DataAccess So how do I go about solving this? Note that I won't be able to change anything on the web host other than my own project. My local machine is running Oracle 11g Thanks.

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• Multi-platform development from one computer

  - by iama

  I am planning to build a new development computer for both Windows & Linux platforms. On Windows, my development would be primarily in .NET/C#/IIS/MSSQL Server. On Linux—preferably Ubuntu—my development would be in Ruby and Python. I am thinking of buying a laptop with Windows 7 pre-installed with 4GB RAM, Intel Core 2 Duo, and 320 GB HD; running 2 VMs for both Windows and Linux development with the host OS as my work station. Of course, I would be running DBs and web servers on the respective platforms. Is this a typical setup? My only concern is running two VMs side by side. Not sure if this configuration would be optimal. Alternative would be to do my Windows development on the host Windows 7 OS. What are your thoughts?

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• Can EC2 instances be set up to come from different IP ranges?

  - by Joshua Frank

  I need to run a web crawler and I want to do it from EC2 because I want the HTTP requests to come from different IP ranges so I don't get blocked. So I thought distributing this on EC2 instances might help, but I can't find any information about what the outbound IP range will be. I don't want to go to the trouble of figuring out the extra complexity of EC2 and distributed data, only to find that all the instances use the same address block and I get blocked by the server anyway. NOTE: This isn't for a DoS attack or anything. I'm trying to harvest data for a legitimate business purpose, I'm respecting robots.txt, and I'm only making one request per second, but the host is still shutting me down. Edit: Commenter Paul Dixon suggests that the act of blocking even my modest crawl indicates that the host doesn't want me to crawl them and therefore that I shouldn't do it (even assuming I can work around the blocking). Do people agree with this?

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• How can I write a file on an ftps-server with PHP?

  - by Daniel

  Hi, I hope someone here could help me, because I couldn't find any solution with Google. What I have to do is to generate a XML-string (that works) an save that directly into a file on an ftps-server. So far, so good... I used the following code with ftp and it works to, but not with ftps. So I either need another options-configuration for the stream or a different way to solve that task. Here my current code: $host = 'ftp.example.com'; $port = 22; $user = 'xxxxxx'; $pass = 'xxxxxx'; $file = 'test_' . time() . '.txt'; $ftpPath = sprintf('ftp://%s:%s@%s:%d/%s', $user, $pass, $host, $port, $file); $context = stream_context_create(array('ftp' = array('overwrite' = true))); file_put_contents($ftpPath, 'test', 0, $context);

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• How to read an XML file with Java?

  - by Yatendra Goel

  I don't need to read complex XML files. I just want to read the following configuration file with a simplest XML reader <config> <db-host>localhost</db-host> <db-port>3306</db-port> <db-username>root</db-username> <db-password>root</db-password> <db-name>cash</db-name> </config> How to read the above XML file with a XML reader through Java?

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• How to make iPhone application accept incorrect server certificate but only specific one?

  - by Igor Romanov

  I need to work with private HTTPS API and client has incorrect certificate on the host. Certificate is for www.clienthost.com and I'm working with api.clienthost.com. So I need to connect via HTTPS to api.clienthost.com ignoring incorrect certificate but still make sure it is the one for www.clienthost.com and not something else. I found this answer: http://stackoverflow.com/questions/933331/how-to-use-nsurlconnection-to-connect-with-ssl-for-an-untrusted-cert and it seems to solve half of my problem but I'm trying to figure out how to still check certificate for host is one I expect to see and not different.

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• multiple ftp sites on a single iis server with one ip

  - by kacalapy

  can i have multiple iis ftp sites using something similar to web site's unasigned host headers? i have a dedicated server in a hosting facility and want to make a web site for each of my clients. to add/ remove files and content i want ftp access to each of the sites root folders. lets say i have 10 sites set up using unasigned host headers... how can i set up 10 analogous ftp sites on the same server? AND NOT USE A DEFINED IP ADDRESS FOR EACH FTP SITE thanks all

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• How to call another PHP script from a PHP script?

  - by Jagira

  Hello, I have a PHP script that has a runtime of 34 seconds. But it dies after 30 seconds. I guess my webhost a time limit of 30 seconds. I am thinking of splitting the script into two parts say PHP-1 and PHP-2. Can I call PHP-2 from PHP-1 and kill PHP-1? Both scripts have to run in sequence, so calling both of them using cron is not possible. [ My host provides cron with interval 5 mins and does not allow to change the start time] -Will this circumvent the time limit set by host?

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• send smtp email through godaddy

  - by Danni

  So, I'm trying to send an smtp email from my website as a confirmation that their order has been place. The site is hosted on godaddy and I have no idea what's going on. I'm getting all kinds of error messages. The current one is: "System.Net.Mail.SmtpException: Mailbox name not allowed. The server response was: sorry, your mail was administratively denied. (#5.7.1)" My code is: string body = "Your order was placed"; MailMessage objEmail1 = new MailMessage("[email protected]", userEmail, "Confirmation Email", body); objEmail1.IsBodyHtml = true; SmtpClient client = new SmtpClient(); client.Host = "relay-hosting.secureserver.net"; client.UseDefaultCredentials = false; client.Send(objEmail1); I think the problem lies in the from address not belonging to godaddy or with the client.Host. Ideas?

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• mongoid with rails - Database should be a Mongo::DB, not NilClass"

  - by Adam T

  Greetings I am trying to get Mongoid to work with my Rails app and I am getting an error: "Mongoid::Errors::InvalidDatabase in 'Shipment bol should be unique' Database should be a Mongo::DB, not NilClass" I have created the mongoid.yml file in my config directory and have mongodb running as a daemon. The config file is like so: defaults: &defaults host: localhost development: <<: *defaults database: ship-it-development test: <<: *defaults database: ship-it-test production: <<: *defaults host: <%= ENV['MONGOID_HOST'] % port: <%= ENV['MONGOID_PORT'] % database: <%= ENV['MONGOID_DATABASE'] % All of my specs fail with the above error. I am using rails 2.3.8. Anyone have ideas?

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• Safe executing shell scripts; escaping vars before execution.

  - by Kirzilla

  Hello, Let's imagine that we have a simple php script that should get ssh_host, ssh_username, ssh_port from $_GET array and try to connect using this parameters to SSH. $port = escapeshellcmd($_GET['ssh_port']); $host = escapeshellcmd($_GET['ssh_host']); $username = escapeshellcmd($_GET['ssh_username']); $answer = shell_exec("ssh -p " . $port . " " . $user . "@" . $host); Is escapeshellcmd() enough or I need something more tricky? Or maybe I should use escapeshellarg() in this example? Thank you.

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• Python: Converting a tuple to a string with 'err'

  - by skylarking

  Given this : import os import subprocess def check_server(): cl = subprocess.Popen(["nmap","10.7.1.71"], stdout=subprocess.PIPE) result = cl.communicate() print result check_server() check_server() returns this tuple: ('\nStarting Nmap 4.53 ( http://insecure.org ) at 2010-04-07 07:26 EDT\nInteresting ports on 10.7.1.71:\nNot shown: 1711 closed ports\nPORT STATE SERVICE\n21/tcp open ftp\n22/tcp open ssh\n80/tcp open http\n\nNmap done: 1 IP address (1 host up) scanned in 0.293 seconds\n', None) Changing the second line in the method to result, err = cl.communicate() results in check_server() returning : Starting Nmap 4.53 ( http://insecure.org ) at 2010-04-07 07:27 EDT Interesting ports on 10.7.1.71: Not shown: 1711 closed ports PORT STATE SERVICE 21/tcp open ftp 22/tcp open ssh 80/tcp open http Nmap done: 1 IP address (1 host up) scanned in 0.319 seconds Looks to be the case that the tuple is converted to a string, and the \n's are being stripped.... but how? What is 'err' and what exactly is it doing?

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• python: can't terminate a thread hung in socket.recvfrom() call

  - by Dihlofos

  Hello, everyone I cannot get a way to terminate a thread that is hung in a socket.recvfrom() call. For example, ctrl+c that should trigger KeyboardInterrupt exception can't be caught. Here is a script I've used for testing: from socket import * from threading import Thread from sys import exit class TestThread(Thread): def __init__(self,host="localhost",port=9999): self.sock = socket(AF_INET,SOCK_DGRAM) self.sock.bind((host,port)) super(TestThread,self).__init__() def run(self): while True: try: recv_data,addr = self.sock.recvfrom(1024) except (KeyboardInterrupt, SystemExit): sys.exit() if __name__ == "__main__": server_thread = TestThread() server_thread.start() while True: pass The main thread (the one that executes infinite loop) exits. However the thread that I explicitly create, keeps hanging in recvfrom(). Please, help me resolve this.

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• Drupal: I cannot connect to the database.. please help

  - by Patrick

  hi, I've hard time to make Drupal work on IIS Microsoft server. I've succesfully run Joomla on the same server so I'm pretty sure the following information are correct: host: localhost user: user pass: pass databaseName = servername_databasename I've set the following line in settings.php file: $db_url = 'mysql://user:password@localhost/servername_databasename'; but what I get is this: If you are the maintainer of this site, please check your database settings in the settings.php file and ensure that your hosting provider's database server is running. For more help, see the handbook, or contact your hosting provider. I don't get any other error message such as: database doesn't exist, user/pass wrong.. just this. The database is running, I can access with phpmyadmin. I've tried both "mysql" and "mysqli". The host is a private server (IIS Microsoft), the database is Mysql The database and website files upload have also been succesfull.. so I dunno what to do to fix this issue. thanks

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• Android bluetooth socket error

  - by ashwini

  I am using backport bluetooth api on android 1.6. I am using Google Bluetooth Chat sample app for testing. The app works fine in normal scenarios. In a scenario, when I try to connect to paired device which is in off state, I get following error. 01-04 09:00:11.629: ERROR/BluetoothEventLoop.cpp(84): onGetRemoteServiceChannelResult: D-Bus error: org.bluez.Error.ConnectionAttemptFailed (Host is down) 01-04 09:00:11.729: DEBUG/dalvikvm(128): GC freed 4535 objects / 256008 bytes in 296ms 01-04 09:00:21.880: ERROR/bluetooth_RfcommSocket.cpp(1433): connect error: Host is down (112) But it sets the state as connected. The app is unable to catch the exception. Why does it happen? Or is it the case with backport api? Any help is appreciated as I am struggling a lot to get things run fine.

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• MySQL: Insert row on table2 if row in table1 exists

  - by Andrew M

  I'm trying to set up a MySQL query that will insert a row into table2 if a row in table1 exist already, otherwise it will just insert the row into table1. I need to find a way to adapt the following query into inserting a row into table2 with the existing row's id. INSERT INTO table1 (host, path) VALUES ('youtube.com', '/watch') IF NOT EXISTS ( SELECT * FROM table1 WHERE host='youtube.com' AND path='/watch' LIMIT 1); Something kind of like this: INSERT ... IF NOT EXISTS(..) ELSE INSERT INTO table2 (table1_id) VALUES(row.id); Except I don't know the syntax for this.

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• Parsing getopts in bash

  - by ABach

  I've got a bash function that I'm trying to use getopts with and am having some trouble. The function is designed to be called by itself (getch), with an optional -s flag (getch -s), or with an optional string argument afterward (so getch master and getch -s master are both valid). The snippet below is where my problem lies - it isn't the entire function, but it's what I'm focusing on: getch() { if [ "$#" -gt 2 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then echo "Usage: $0 [-s] [branch-name]" >&2 return 1 fi while getopts "s" opt; do echo $opt # This line is here to test how many times we go through the loop case $opt in s) squash=true shift ;; *) ;; esac done } The getch -s master case is where the strangeness happens. The above should spit out s once, but instead, I get this: [user@host:git-repositories/temp]$ getch -s master s s [user@host:git-repositories/temp]$ Why is it parsing the -s opt twice?

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