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• .NET proxy detection

  - by Ziplin

  I am having an issue with .NET detecting the proxy settings configured through internet explorer. I'm writing a client application that supports proxies, and to test I set up an array of 9 squid servers to support various authentication methods for HTTP and HTTPs. I have a script that updates IE to whichever configuration I choose (which proxy, detection via "Auto", PAC, or hardcode). I have tried the 3 methods below to detect the IE configuration through .NET. On occassion I notice that .NET picks up the wrong set of proxy servers. IE has the correct settings, and if I browse the web with IE, I can see I am hitting the correct servers via wireshark. WebRequest.GetSystemWebProxy().GetProxy(destination); GlobalProxySelection.Select.GetProxy(destination); WebRequest.DefaultWebProxy Here are the following tips I have: My script sets a PAC file on a webserver, and updates the configuration in IE, then clears IE's cache .NET seems to get "stuck" on a certain proxy configuration, and I have to set another configuration for .NET to realize there was a change. Occasionally it seems to pick some random set of servers (I'm sure they're not random, just a set of servers I used once and are in some cached PAC file or something). As in, I will check the proxy for the destination "https://www.secure.com" and I may have IE configured for and thus expect to get "http://squidserver:18" and instead it will return "http://squidserver:28" (port 18 runs NTLM, 28 runs without authentication). All the squid servers work. This does not appear to be an issue on XP, only Vista, 2003, and windows 7. Hardcoding the proxy servers in IE ALWAYS works Time always solves the issue - if I leave the computer for about 20 or 30 minutes and come back, .NET picks up the correct proxy settings, as if a cached PAC script expired.

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• How to direct reverse proxy requests using wildcard vhosts

  - by HonoredMule

  I'm interested in running a reverse proxy with 2-3 virtual machines behind it. Each internal server will run multiple virtual hosts, and rather than manually configuring each individual vhost on the proxy (a variety of vhosts come and go too often for this to be practical), I would like to use something which can employ pattern matching in a sequential order to find the appropriate back-end server. For example: Server 1: *.dev.mysite.com Server 2: *.stage.mysite.com Server 3: *.mysite.com, dev.mysite.com, stage.mysite.com, mysite.com Server 4: * In the above configuration, task.dev.mysite.com would go to Server 1, dev.mysite.com would go to Server 3, yoursite.stage.mysite.com to Server 2, www.mysite.com to Server 3, and yoursite.com to Server 4. I've looked into using Squid, Varnish, and nginx so far. I have my opinions regarding their respective desirability and general suitability, but it's not readily apparent if any of them can handle dynamic server selection in this manner and not require per-vhost configuration. Apache on the other hand can do this handily and simply, but otherwise (aside from being well-known and familiar) seems very poorly suited to the partly-performance-serving task. Performance isn't actually a major concern yet, but it seems foolish to use Apache if another system will perform far better and can also handle the desired 'hands-free' configuration. But so is frequently having to adjust the gateway for all production services and risk network-wide outage...and so also is setting oneself up for longer downtime later if Apache becomes a too-small bottleneck. Which of these (or other) reverse proxies can do it/would do it best? And maybe I should post this as a separate question, but if Apache is the only practical option, how safe/reliable/predictable is apache-mpm-event in apache2.2 (Ubuntu 12.04.1) particularly for a dedicated reverse proxy? As I understand it the Event MPM was declared "safe" as of 2.4 but it's unclear whether reaching stability in 2.4 has any implications for the older (2.2) versions available in official/stable package channels of various distros.

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• Proxy Settings per Machine not working on windows server 2008 R2 SP1

  - by Anirudh Goel

  i have a very interesting problem and would appreciate any help for it. In my scenario i have scripts which bring up a VM inside a domain. Now i want to enable internet access for all the VM's and they go through a proxy. I interact with the VM's using remote sessions and use the credentials of a user which belogs to the domain administrator group. Now problem is that, i create VM's on the fly and destroy them as well,and the scripts i run during their lifetime require internet access on them.So i cannot statically set the proxy settings thus i used the option of Active Directory Group Policy Management. I initially used the "User Configuration" option and set the proxy, which worked like a charm when ever i log inside the machine. However it doesn't work if i use to remote login to the machine with an account which has not yet logged in to the machine. So i used this link to configure it to work on Per Machine, the group policy has worked fine and it reflects in the browser too. But i am not able to resolve any dns name like http://www.google.com or any internet based site. Any idea what i can do?

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• port forwarding with socks over proxy

  - by Oz123

  I am trying to browse a wiki that runs on a server inside one domain from another domain. The wiki is accessible only on the LAN, but I need to browse it from another LAN to which I connect with an SSH tunnel ... Here is my setup and the steps I did so far: ~.ssh/confing on wikihost: Host gateway User kisteuser Port 443 Hostname gateway.companydomain.com ProxyCommand /home/myuser/bin/ssh-https-tunnel %h %p # ssh-https-tunnel: # http://ttcplinux.sourceforge.net/tools/stunnel Protocol 2 IdentityFile ~/.ssh/key_dsa LocalForward 11069 localhost:11069 Host server1 User kisteuser Hostname localhost Port 11069 LocalForward 8022 server1:22 LocalForward 17001 server1:7100 LocalForward 8080 www-proxy:3128 RemoteForward 11069 localhost:22 from wikihost myuser@wikihost: ssh -XC -t gateway.companydomain.com ssh -L11069:localhost:22 server1 on another terminal: ssh gateway.companydomain.com Now, on my companydomain I would like to start firefox and browse the wiki on wikihost. I did: [email protected] ~ $ ssh gateway Have a lot of fun... kisteuser@gateway ~ $ ssh -D 8383 localhost user@localhost's password: user@wikiserver:~> My .ssh/config on that side looks like that: host server1 localforward 11069 localhost:11069 host localhost user myuser port 11069 host wikiserver forwardagent yes user myuser port 11069 hostname localhost Now, I started firefox on the server called gateway, and edited the proxy settings to use SOCKSv5, specifying that the proxy should be gateway and use the port 8383... kisteuser@gateway ~ $ LANG=C firefox -P --no-remote And, now I get the following error popping in the Terminal of wikiserver: myuser@wikiserver:~> channel 3: open failed: connect failed: Connection refused channel 3: open failed: connect failed: Connection refused channel 3: open failed: connect failed: Connection refused Confused? Me too ... Please help me understand how to properly build the tunnels and browse the wiki over SOCKS protocol. update: I managed to browse the wiki on wikiserver with the following changes: host wikiserver forwardagent yes user myuser port 11069 hostname localhost localforward 8339 localhost:8443 Now when I ssh gateway I launch Firefox and go to localhost:8339 and I hit the start page of the wiki, which is served on Port 8443. Now I ask myself is SOCKS really needed? Can someone elaborate on that ?

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• Apache Reverse proxy Http to https

  - by Coppes

  I have a website which is fully running on Https. For some reason i did get the task to find a way to convert a url for example: http://www.domain.com/a/e-nc/youless to a https version of it, without losing HTTP POST header such as the POST values which are in it. So i thought (not even sure) let's try to make a reversed proxy in apache and see how that works. Anyway after a lot of struggling i came to the point to ask it here. So to be speicific my goal is: Convert the http://www.domain.com/a/e-nc/youless to https://www.domain.com/a/e-nc/youless without losing the POST conditions. What i have tried until now is the following: Created a file called: proxiedhosts in my apache2/sites-enabled folder with the following contents: SSLProxyEngine On SSLProxyCACertificateFile /etc/apache2/ssl/certificate****.pem ProxyRequests Off ProxyPreserveHost On <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass /a/e-nc/youless/ https://www.domain.com/a/e-nc/youless/ ProxyPassReverse /a/e-nc/youless/ https://www.domain.com/a/e-nc/youless/ Thanks in advance!

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• Apache reverse proxy with VirtualHost not serving a page

  - by Mr Aleph

  I have an Apache reverse proxy set to move requests to a Tomcat Applet. The config is similar to: <VirtualHost 100.100.100.100:80> ProxyPass /AppName/App http://1.1.1.1/AppName/App ProxyPassReverse /AppName/App http://1.1.1.1/AppName/App </VirtualHost> I also have a page called summary.html that exists on 1.1.1.1 as: http://1.1.1.1/AppName/summary.html When I browse directly to it I have no problem viewing it, however if I try to get there via the reverse proxy I get a blank page. Wireshark shows me a 503, but this one is coming from the Apache reverse proxy (IP 100.100.100.100) and not the Tomcat (IP 1.1.1.1). Should I add http://1.1.1.1/AppName/ to the config? How? I tried it but I get a blank page, however this one shows on the URL bar of the browser the internal IP of the Tomcat, so, no go. Help is appreciated. Thanks. EDIT: This is the dump from Wireshark: GET /AppName/ HTTP/1.1 Host: 100.100.100.100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Cache-Control: max-age=0 Accept-Language: en-us Accept-Encoding: gzip, deflate Connection: keep-alive HTTP/1.1 404 Not Found Date: Tue, 30 Jan 2012 09:08:51 GMT Server: Apache Content-Length: 1 Connection: close Content-Type: text/html; charset=iso-8859-1

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• Reverse Proxy issues IIS on Windows Server 2012

  - by ahwm

  I've tried searching, but nothing seems to be working. I have a feeling it might be due to our custom Rewrite module. Here is the excerpt from the web.config that sets it up: <modules runAllManagedModulesForAllRequests="true"> <add name="UrlRewriteModule" type="EShop.UrlRewriteModule"/> </modules> EShop.UrlRewriteModule is a custom class in App_Code which handles incoming requests. I have set up the rewrite rules but it doesn't seem to want to work. I'm inclined to think that our rewrite class is interfering earlier than the proxy rules and saying that the page doesn't exist. Here's what we're trying to accomplish: We are working on a new site for a client, but they have a forum that they're not likely to want to move. I set up a new subdomain to point to the new server while the site is being completed (before we go live) and want the reverse proxy to forward test.domain.com/forum to www.domain.com/forum. After the site goes live, we'll need to forward using an IP address instead. I've set up a reverse proxy successfully with nginx, but we didn't want to set up another server if we didn't need to. Ideas?

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• Access an external SSH server through a restrictive proxy [on hold]

  - by Cyrille

  I'm a software developer. I wish to access my computer at home through SSH. For example, I sometime need to access my personal projects source code to check how I handled specific problems. Unfortunately, I currently work under an over-restrictive and anti-productive proxy that waste a hell of a lot of everyone's time (We often have to visit websites from our smartphones or use a web proxy to check very legitimates websites for answers, and don't get me started on other "security" overkill features we have to cope with...). Well, back to the subject, I can access my home computer from my phone (SSH, port 22 and 80 both redirected by router on port 22). It works, but it's quite uncomfortable. From my office computer, this is what I tried so far: export http_proxy=http://user:pass@proxyip:8080 echo "user:pass" > ~/.corkscrew-auth echo "ProxyCommand corkscrew proxyip 8080 %h %p /home/me/.corkscrew-auth" > ~/.ssh/config ssh 82.23.34.56 -l me -p 80 Proxy could not open connnection to 82.23.34.56: Forbidden ssh_exchange_identification: Connection closed by remote host (same without -p 80) Without corkscrew: ssh: connect to host 82.23.34.56 port 80: Connection timed out ssh: connect to host 82.23.34.56 port 22: Connection timed out Any other idea ?

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• VirtualName-based local development host behind corporate proxy (MAMP)

  - by geerlingguy

  I am behind a corporate proxy server/firewall, and this firewall seems to not be too happy with my idea of local development. On my home computer (Mac/Leopard), I have MAMP running, with a rule in /etc/hosts that directs dev.example.com to 127.0.0.1, and I have a virtualhost set up in the httpd.conf file which works great for me. However, at work, I set up the exact same configuration, but am not able to access dev.example.com, likely due to some address/DNS translation going on via the proxy server. Here are the relevant details from Terminal: $ ping dev.example.com PING dev.example.com (127.0.0.1): 56 data bytes 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.025 ms $ host dev.example.com Host dev.example.com not found: 3(NXDOMAIN) I've tried adding dev.example.com to the list of bypass addresses in System Preferences (the 'Bypass proxy settings for these Hosts & Domains' list), but that had no effect. Is there any way I can develop locally using name-based hosts at work? I can access localhost, but can't get to the dev.example.com (or any other custom virtualhosts) here at work, which complicates other matters related to the sites on which I'm working...

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• Reverse web proxy with time constraints

  - by user2893458

  I have a web application which produces several unique URLs of the type http://service.company.com/service.html?type=aaaa&key=jfiZm6u6cW where the last part is a randomly generated key. Each such URL provides access to an instance of the service provided. I am looking for a way to restrict access to those URLs based on time constraints, as an example URL#1 should be available between 8:00AM and 10:00AM on May 30, URL#2 should be available between 10:30AM and 12:00PM on May 31, and so on. I already have a resource scheduling application based on Drupal and would like to find a way to include those URLs as scheduled resources. The web application is deployed on Apache Tomcat, so I don't have the knowledge or the resources to alter it, therefore I thought that I could put some sort of reverse proxy in front of the web app that could implement the time constraint feature. In my thoughts the reverse proxy would allow or disallow access to each URL based on the rules that my scheduling application would provide. There may be other ways to deliver such a solution, but I can't think of anything better, so the question is: is there a reverse web proxy architecture that could allow access to the destination URLs based on time and date rules? Any other ideas are more than welcome.

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• java runtime 6 with socks v5 proxy - Possible?

  - by rwired

  I have written an application that (amongst other things) runs a local service in windows that acts as a SOCKS v5 proxy for Firefox. I'm in the debugging phase right now and have found certain websites that don't work correctly. For example the Java Applet for Picture Uploading on Facebook.com fails because is is unable to lookup domains. My app overrides a hidden FF config setting network.proxy.socks__remote__dns setting it to true. The whole purpose of the app is to allow access to websites when behind a firewall (e.g. if the user is in China), so this setting is essential to ensure domains are resolved remotely also (and not just HTTP requests). In the JRE6 settings (documented here) there isn't an equivalent setting, and since remote DNS resolution is a feature of SOCKS v5 and not v4 as the documentation seems to imply I'm worried that it's just not possible. How can I programmatically make sure the JRE uses a SOCKS v5 proxy for all requests (including DNS)? UPDATE: Steps to reproduce this problem: Make sure you are behind a firewall that blocks (or redirects) internet access including DNS Install PuTTY and add a dynamic SSH tunnel on some port number of your choice (e.g. 9870). Then login to a remote server that has full access to the internet Launch Firefox and you will not be able to browse the web In FF network settings set the SOCKS v5 proxy to localhost:9870 In FF go to about:config, change network.proxy.socks__remote__dns to true You will now be able to browse the web. Go to facebook.com, login, go to your profile and attempt to use the picture uploader java applet to add some pictures It will fail with a series of class not found errors looking similar to: load: class com.facebook.facebookphotouploader5.FacebookPhotoUploader5.class not found. I believe this is failing because the JRE is unable to resolve the domain that the class resides on. I'm basing this belief on the fact that the documentation (http://java.sun.com/javase/6/docs/technotes/guides/deployment/deployment-guide/properties.html) talks only about SOCKS v4 (which as far as I know does not support remote DNS). My deployment.properties file is located in %APPDATA%\Sun\Java\Deployment. I can confirm that modifications I make in the Java Control Panel get written into that file. If instead of "Use browser setting" the network settings for Java I override and attempt to use the SOCKS proxy settings manually, I still have the issue. There does not seem to be an easy way to force the JRE to do DNS remotely through the Proxy. UPDATE 2: Without the SOCKS proxy, from my local client www.facebook.com resolves to 203.161.230.171 upload.facebook.com resolves to 64.33.88.161 Neither host is reachable (because of the firewall) If I login to the remote server, I get: www.facebook.com 69.63.187.17 upload.facebook.com 69.63.178.32 Both these IPs change after a few minutes, as it seems Facebook uses round-robin DNS and other load-balancing. With the Proxy settings set in Firefox, I can navigate to www.facebook.com without any difficulty (since DNS is being resolved remotely on the Proxy). Whey I go to the page with the Java applet it fails with the stacktrace messages I've already reported. However if I edit Windows\System32\drivers\etc\hosts, adding the correct IP for upload.facebook.com I can get the applet to load and work correctly (restart of FF is sometimes necessary). This evidence seems to support my theory that the Java Runtime is not resolving DNS on the Proxy, but instead just routing traffic though it. My application is for mass-deployment, and needs to work with java applets on other sites (not just facebook). I really need a work-around for this problem. UPDATE 3 Stacktrace dump a requested by ZZ Coder: load: class com.facebook.facebookphotouploader5.FacebookPhotoUploader5.class not found. java.lang.ClassNotFoundException: com.facebook.facebookphotouploader5.FacebookPhotoUploader5.class at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source) at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(Unknown Source) at java.io.BufferedInputStream.fill(Unknown Source) at java.io.BufferedInputStream.read1(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) at java.net.HttpURLConnection.getResponseCode(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) ... 7 more Exception: java.lang.ClassNotFoundException: com.facebook.facebookphotouploader5.FacebookPhotoUploader5.class Dumping class loader cache... Live entry: key=http://upload.facebook.com/controls/2008.10.10_v5.5.8/,FacebookPhotoUploader5.jar,FacebookPhotoUploader5.jar, refCount=1, threadGroup=sun.plugin2.applet.Applet2ThreadGroup[name=http://upload.facebook.com/controls/2008.10.10_v5.5.8/-threadGroup,maxpri=4] Done.

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• SSH over HTTPS with proxytunnel and nginx

  - by Thermionix

  I'm trying to setup an ssh over https connection using nginx. I haven't found any working examples, so any help would be appreciated! ~$ cat .ssh/config Host example.net Hostname example.net ProtocolKeepAlives 30 DynamicForward 8118 ProxyCommand /usr/bin/proxytunnel -p ssh.example.net:443 -d localhost:22 -E -v -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)" ~$ ssh [email protected] Local proxy ssh.example.net resolves to 115.xxx.xxx.xxx Connected to ssh.example.net:443 (local proxy) Tunneling to localhost:22 (destination) Communication with local proxy: -> CONNECT localhost:22 HTTP/1.0 -> Proxy-Connection: Keep-Alive -> User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32) <- <html> <- <head><title>400 Bad Request</title></head> <- <body bgcolor="white"> <- <center><h1>400 Bad Request</h1></center> <- <hr><center>nginx/1.0.5</center> <- </body> <- </html> analyze_HTTP: readline failed: Connection closed by remote host ssh_exchange_identification: Connection closed by remote host Nginx config on the server; ~$ cat /etc/nginx/sites-enabled/ssh upstream tunnel { server localhost:22; } server { listen 443; server_name ssh.example.net; location / { proxy_pass http://tunnel; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_redirect off; } ssl on; ssl_certificate /etc/ssl/certs/server.cer; ssl_certificate_key /etc/ssl/private/server.key; } ~$ tail /var/log/nginx/access.log 203.xxx.xxx.xxx - - [08/Feb/2012:15:17:39 +1100] "CONNECT localhost:22 HTTP/1.0" 400 173 "-" "-"

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• Load balance to proxies

  - by LoveRight

  I have installed several proxy programs whose IP addresses are, for example, 127.0.0.1:8580(use http), 127.0.0.1:9050(use socks5). You may regrard them as Tor and its alternatives. You know, certain proxy programs are faster than others at times, while at other times, they would be slower. The Firefox add-in, AutoProxy and FoxyProxy Standard, can define a list of rules such as any urls matching the pattern *.google.com should be proxied to 127.0.0.1:8580 using socks5 protocol. But the rule is "static". I want *.google.com to be proxied to the fastest proxy, no matter which one. I think that is kind of load balancing. I thought I could set a rule that direct request of *.google.com to the address the load balancer listens, and the load balancer forwards the request to the fastest real proxy. I notice that tor uses socks5 protocol and some other applications use http. I feel confused that which protocol should the load balancer use. I also start to wonder about the feasibility of this solution. Any suggestions? My operating system is Windows 7 x64.

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• Reverse proxy setup for distributed storage

  - by vise

  I have 4 file servers that I want to access under a single mount point from another server. This server has a web application that should serve content from the mounted point. I think I can achieve this with glusterfs. Considering that the file servers have fairly powerful hardware, I want to install a webserver on each of them and serve those files via a reverse proxy. Any thoughts on how I may be able to do so?

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• Uncheck Automatically detect proxy for Terminal Server users via GPO

  - by Chris

  Good morning, I have a registry key that changes local users Internet Explorer LAN Settings to uncheck the "Automatically detect settings" tickbox. When I add this policy to the Terminal Servers user group it has no effect. I exported this key from my own registry after unticking the box. My computer runs Windows Vista Business Edition. Environment: We are using Server 2008 RC2 environment - two terminal servers with a session broker. Any idea's on how to get this working?

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• Is it possible to get a Proxy Authentication Dialog with Ubuntu Server?

  - by Johnny Bigoode

  I've got a VM Virtual Box with Ubuntu Server. I'set the http_proxy variable using export http_proxy="http://1234:linux@proxy:8080" The problem is that Ubuntu will constantly try to connect to the internet, even when I'm not logged in my company's account, so everyday I need to reset my password since Ubuntu will constantly try to access the internet. Also, it's always a problem when I need to authenticate the proxy with a different user/password. Can't I just set it to make a small prompt when it tries to connect to the proxy and fails? Like Firefox, Chrome and every app I have installed with Windows 7? I get this small dialog box that asks for a username and password when it can't access the internet. The Ubuntu Server doesn't need constant internet connection, specially since it's only online for tests over LAN.

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• Should I give preferential treatment to proxy users on my ecommerce site?

  - by Question Overflow

  I am setting up an ecommerce site that caters to a worldwide audience. I would imagine that visitors would come from everywhere, and for whatever reasons, some would be connecting through proxy servers. My site uses a server that is configured to rate limit connections from the same ip address to protect itself from a DOS attack. So, if a proxy server is heavily used by my visitors, then it would appear to be a DOS. This is problematic in a sense that it is hard to tell whether the users are genuinely browsing my site or if a DOS is taking place. So my question is, should I give preferential treatment to proxy users on my ecommerce site? If yes, how should this be done. If not, why not?

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• Best way to fetch remote RSS through authenticated proxy and parse it

  - by grajea

  I'm trying to get a remote RSS through proxy and parse it. I'm using magpierss, but it doesn't allow reaching internet through a proxy (or I don't know how to do it). I assume the option is to, first, fetch the rss with curl functions, that allows proxy authenticating, but .... are there any class to do this in a easy way, or ... does magpie support using proxy, and how? Thanks in advance.

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• How to get the system HTTP proxy configuration in Java

  - by Auron

  Is it possible to get the system proxy configuration in Java? In the Java Control Panel, you can set a proxy configuration. How can I access to that proxy configuration in order to open URL connections behind a proxy?

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• Clients with multiple proxy and multithreading callbacks

  - by enzom83

  I created a sessionful web service using WCF, and in particular I used the NetTcpBinding binding. In addition to methods to initiate and terminate a session, other methods allow the client to send to one or more tasks to be performed (the results are returned via callback, so the service is duplex), but they also allow you to know the status of the service. Assuming you activate the same service on multiple endpoints, and assuming that the client knows these endpoints (for example, it could maintain a List of endpoints), the client should connect with one or more replicas of the same service. The client periodically updates the status of the service, so when it needs to perform a new task (the task is submitted by the user via UI), it selects the service currently less loaded and sends the task to it. Periodically, the client also initiates a maintenance procedure in order to disconnect from one or more overloaded service and in order to connect with new services. I created a client proxy using the svcutil tool. I wish each proxy can be used simultaneously by different threads, for example, in addition to the thread that submits the tasks using a proxy, there are also the following two threads which act periodically: a thread that periodically sends a request to the service in order to obtain the updated state; a thread that periodically selects a proxy to close and instantiates a new proxy to replace the closed one. To achieve these objectives, is it sufficient to create an array of proxies and manage their opening and closing in separate threads? I think I read that the proxy method calls are thread safe, so I would not need to perform a lock before requesting updates to the service. However, when the maintenance procedure (which is activated on its own thread) decides to close a proxy, should I perform a lock? Finally, each proxy is also associated with an object that implements the callback interface for the service: are the callbacks (invoked on the client) executed on different threads on the client? I would like to wrap the management of the proxy in one or more classes so that it can then easily manage within a WPF application.

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• How to Apache SSL proxy to openerp 7 running in VM?

  - by Johnbritto

  I have installed openerp v7 in an ubuntu 12.04 Virtual machine from launchpad.i.e server, web, addons. I configured SSL reverse proxy on virtual machine and my configuration for virtual host *:443 are ServerName openerp.mydomain.net ServerAdmin openerp@localhost SSLEngine on SSLCertificateFile /etc/ssl/openerp/server.crt SSLCertificateKeyFile /etc/ssl/openerp/server.key ProxyRequests Off ProxyPreserveHost On <Proxy *> Order deny,allow Allow from all </Proxy> ProxyVia On ProxyPass / http://172.16.150.14:8069/ ProxyPassReverse / http://172.16.150.14:8069/ RequestHeader set "X-Forwarded-Proto" "https" # Fix IE problem (httpapache proxy dav error 408/409) SetEnv proxy-nokeepalive 1 </VirtualHost> on host, I have configured apache reverse proxy for my subdomain in vhost_ssl.conf as SSLEngine On SSLProxyEngine On ProxyRequests Off ProxyPreserveHost On <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPass / https://172.16.150.14/ ProxyPassReverse / https://172.16.150.14/ SetEnv proxy-nokeepalive 1 <Location /> Order allow,deny Allow from all </Location> I have set 172.16.150.14 on netrpc and xmlrcs interfaces in openerp-server.conf. Now, when I access https:// openerp.mydomain.net from Girefox and chrome browser..I get http:// openerp.mydomain.net%2C%20openerp.mydomain.net/?db=testingdb which makes 404. But when i access URL from IE 9, the URL https:// openerp.mydomain.net works ok .. secondly if i change the parameter list_db= false, then the links works as expected.. Kindly let me know what is creating bottleneck with URL redirect to http://openerp.mydomain.net, openerp.myydomain.net/?db=testdb on Firefox and chrome. i am struck here doing troubleshooting with the URL to work.

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• reverse proxy on PFsense, squid or otherwise

  - by Mustafa Ismail Mustafa

  I've been trying to get this to work for days now and its not working. After bashing my head against the desk enough times, I've decided to man up and ask. I'm desperately trying to set up a reverse proxy on the pfsense box itself. One because its a pretty powerful box and its not being utilized to the maximum at all and two because I don't have any spare machines to setup squid (or any other reverse proxy [capable]) server on. So, on pfsense, everytime I set up rules (on ServicesProxy ServerGeneral) as so: acl surveillance dstdomain surveillance.myweb.local; acl camera dstdomain camera.myweb.local; http_access allow surveillance AND camera (ad nauseum) when I check the services, squid stops and refuses to restart until I remove them pesky acls that are supposed to make my life easier! What am I doing wrong? How can I get it to work? Is there another way/package I can use? Thanks

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• Cross domain javascript form filling, reverse proxy

  - by Michel van Engelen

  I need a javascript form filler that can bypass the 'same origin policy' most modern browsers implement. I made a script that opens the desired website/form in a new browser. With the handler, returned by the window.open method, I want to retrieve the inputs with theWindowHandler.document.getElementById('inputx') and fill them (access denied). Is it possible to solve this problem by using Isapi Rewrite (official site) in IIS 6 acting like a reverse proxy? If so, how would I configure the reverse proxy? This is how far I got: RewriteEngine on RewriteLogLevel 9 LogLevel debug RewriteRule CarChecker https://the.actualcarchecker.com/CheckCar.aspx$1 [NC,P] The rewrite works, http://ourcompany.com/ourapplication/CarChecker, as evident in the logging. From within our companysite I can run the carchecker as if it was in our own domain. Except, the 'same origin policy' is still in force. Regards, Michel

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• Using a TS-Gateway through a Apache reverse-proxy

  - by Helder

  Hey all, I've set up a Windows 2008 server as Terminal Services Gateway, to funnel the RDP access to a bunch of backend servers. However, since I only need to publish SSL to the "outside", I've tried to publish it with our reverse proxy, but it's not working. The Apache box is timing out, while trying to reach the tsgateway. However, if I ping it straight from the same box, there is connectivity. I've read a bit, and with ISA 2006 you can publish TS-Gateways on the internet, so I was wondering it anyone ever got it working with an Apache reverse proxy instead :)

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• Apache internal test servers

  - by user74274

  I want to build a test system in the office. On one box I will install XAMPP. I will put a website that I want to test on that box. Now I do not want it connected to the Internet. So my plan is to use a reverse proxy to resolve things like ads and other external links. So I am thinking of using mod_proxy for that. Now my question is, How many boxes do I need? 1 for Xampp, 1 for mod_proxy and 1 for the server where mod proxy redirects them to. Total of three. But maybe I could do it with less. Can I run Mod_proxy on the first box? Is there a better way? Thanks

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