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  • C# Proxy, what is the best way to do this?

    - by Kin
    I'm writing a proxy using .NET and C#. It has a couple of functions that it needs to fulfill. I haven't done much Socket programming, and I am not sure the best way to go about it. Should I use Synchronous Sockets, Asynchronous sockets? Please help! It must... Accept Connections from the client on two different ports, and be able to receive data on both ports at the same time. When a connection is made on a port, it must immediately connect to the server, and start sending data as it receives it from the client to the server. Packets must be forwarded in the order they are received, exactly as they were received. It needs to be as low latency as possible. I don't need the ability for multiple clients to use the proxy, but it would be a nice feature if its easy to implement.

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  • Use subpath internal proxy for subdomains, but redirect external clients if they ask for that subpath?

    - by HostileFork
    I have a VirtualHost that I'd like to have several subdomains on. (For the sake of clarity, let's say my domain is example.com and I'm just trying to get started by making foo.example.com work, and build from there.) The simplest way I found for a subdomain to work non-invasively with the framework I have was to proxy to a sub-path via mod_rewrite. Thus paths would appear in the client's URL bar as http://foo.example.com/(whatever) while they'd actually be served http://foo.example.com/foo/(whatever) under the hood. I've managed to do that inside my VirtualHost config file like this: ServerAlias *.example.com RewriteEngine on RewriteCond %{HTTP_HOST} ^foo\.example\.com [NC] # <--- RewriteCond %{REQUEST_URI} !^/foo/.*$ [NC] # AND is implicit with above RewriteRule ^/(.*)$ /foo/$1 [PT] (Note: It was surprisingly hard to find that particular working combination. Specifically, the [PT] seemed to be necessary on the RewriteRule. I could not get it to work with examples I saw elsewhere like [L] or trying just [P]. It would either not show anything or get in loops. Also some browsers seemed to cache the response pages for the bad loops once they got one... a page reload after fixing it wouldn't show it was working! Feedback welcome—in any case—if this part can be done better.) Now I'd like to make what http://foo.example.com/foo/(whatever) provides depend on who asked. If the request came from outside, I'd like the client to be permanently redirected by Apache so they get the URL http://foo.example.com/(whatever) in their browser. If it came internally from the mod_rewrite, I want the request to be handled by the web framework...which is unaware of subdomains. Is something like that possible?

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  • can you use proxies to do load/stress testing on a server, with proxy serving as a sort of mirror?

    - by EndangeringSpecies
    suppose I want to test a server's and its web application's ability to handle many simultaneous connections well and show decent latency. So ideally I would want a thousand machines to bombard it with usage requests, but that's not practicable. So instead, can I just make a testing script with a thousand threads to run on the same server and have them perform the testing, connecting to the server via a geographically far-away proxy? My reasoning here is that the signal will have to travel realistically big distances to the proxy and back, so that sort of emulates the reality of real clients accessing the server. Then again, to take this one step further, are there prepackaged emulators/frameworks that could perform a similar test without using internet at all, just simulating the latency of the network, realistically creating all the socket connections and other resource intensive stuff etc?

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  • Are there any sFTP clients that support a proxy that uses NTLM authentication?

    - by Iraklis
    The title pretty much summarizes the question. We have deployed an sFTP server that needs to be accessed from our client's MS Windows Pc's that reside within a restricted local area network. The only way they can get out for their Intranet is to use an HTTP proxy that requires NTLM authentication. From what I understand all open-source sFTP clients (FilleZilla,WinSCP,etc) do NOT support NTLM authentication (Because of legal issues). I know that there are workarounds to this (installing a local proxy at the machine that understands NTLM) but this would break all sorts of security policies of our client. So my question is : Does anyone know of any sFTP client that supports NTLM ?

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  • LFTP when used with proxies doesn't work

    - by user2949465
    can't seem to use LFTP with proxies that require authentification correctly on my Ubuntu server. When I use it with proxy that doesn't require username/password everything seems fine: lftp lftp :~> set http:proxy http://HOST:PORT lftp :~> set ftp:proxy http://HOST:PORT lftp :~> open username:[email protected] lftp [email protected]:~> get file.ext file.ext 36352 bytes transferred in 10 seconds (3.5K/s) lftp [email protected]:~> exit but when I have to put username/password there is a problem: lftp lftp :~> set http:proxy http://proxylogin:proxypass@HOST:port lftp :~> set ftp:proxy http://proxylogin:proxypass@HOST:port lftp :~> open ftp://ftpuser:[email protected] answer: cd: Access failed: 401 Authentication Required (~) please someone help!

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  • Apache mod status is showing ..reading

    - by Adelave
    Recently my apache got DoS attack, it happened attacker flood SYN request to our apache, i know because at that time i have wireshark enabled. After the attack finished, i restart my apache and its all back to run normal. But the problem when i check my serverstatus from mod-status there are some threads are showing > 0-92 61968 0/0/674 R 1125 0 0.0 0.00 22.93 ? ? ..reading.. > 0-92 61968 0/0/29 R 537889 0 0.0 0.00 0.01 ? ? ..reading.. > 0-92 61968 0/0/852 R 1158 15 0.0 0.00 15.05 ? ? ..reading.. > 0-92 61968 0/0/2 R 537933 578 0.0 0.00 0.02 ? ? ..reading.. > 0-92 61968 0/0/3 R 537933 0 0.0 0.00 0.02 ? ? ..reading.. > 0-92 61968 0/0/1 R 538060 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/2 R 538060 0 0.0 0.00 0.01 ? ? ..reading.. > 0-92 61968 0/0/71 R 538146 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/31 R 538146 0 0.0 0.00 0.01 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 R 1287665833 0 0.0 0.00 0.00 ? ? ..reading.. > 0-92 61968 0/0/0 K 1287665833 0 0.0 0.00 0.00 these ..reading.. are always showing even after i restart. Do you have any idea how to remove this ? and where it comes from ?

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  • How can I use a computer as a router and send all client traffic through anonymous proxies?

    - by Terrapin
    Is there a way that I can setup a spare box as a router on my network, and route client traffic through a proxy in order to hide my location? Specifically, I would like internet traffic to/from my Roku Box to be routed via proxy, but there is no proxy support built in to the Roku. So I would like wire my Roku directly my computer's second NIC, and force all traffic through a proxy. What kind of software and hardware setup will I need? Also, which anonymous proxy service are best for this purpose? I'm not interesting in full anonymity or encryption. I simply want to mask my location while providing the best possible throughput.

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  • Does Basic User Authentication require 2-Phase communiation?

    - by RED SOFT ADAIR-StefanWoe
    My Application connects to the Internet to HTTP Services using boost::asio. Recently we added support for HTTP Proxys and Basic User Authentication. We implemented Basic User Authentication by just sending Authentication parameters with every HTTP call if a user configured a proxy in our program. Parameters are sent as described here: Authorization: Basic <base64 Encoded username:password> This works at least for one user and his proxy server. Other users report that their Proxy server replys with 407 Proxy Authentication Required My guess is that some proxy servers accept 1 one phase authentication and that others don't. I do not find any information that a 2 Phase communication is requested where the access always is denied for the first call by returning 407 and that only a second call is accepted. Our program yet does not retry the call if a 407 has been returned. Do we have to add this? I asked this question before on stackoverflow but did not get a sufficient answer.

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  • proxy pass for activeMQ

    - by user1172482
    I have a apache server that I'm trying to use for proxy access my activeMQ admin page. I am able to load the inital landing page properly, but I can't seem to load any of the sub-pages (Queues, Connections, etc.). My proxypass rules on the apache server are the following: ProxyPass /foo http://10.5.124.108:8161/admin ProxyPassReverse /foo http://10.5.124.108:8161/admin The activeMQ installation included a activemq-httpd.conf file in /etc/httpd/conf.d/. Proxy connections there are enabled: ProxyRequests On ProxyVia On <Proxy *> Allow from all Order allow,deny </Proxy> ProxyPass /admin http://localhost:8161/admin ProxyPassReverse /admin http://localhost:8161/admin ProxyPass /message http://localhost:8161/admin/send ProxyPassReverse /message http://localhost:8161/admin/send From what I've read the proxypass rules should be recursive (the rule for /foo should also work for /foo/bar). Is there something else that I'm missing here that's preventing me from accessing pages beyond the initial admin landing page?

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  • The proxy server received an invalid response from an upstream server

    - by chandank
    I have tomcat server behind the apache. I am using mod_ssl and reverse proxy to the tomcat. All are running at default ports. The full error is as follow. ack Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /pages/doeditpage.action. Reason: Error reading from remote server If I clean the browser cache the error goes away and comes back after few attempts. I test the same on Chrome/Firefox/IE on Windows platform. Wondering it works perfectly on Linux based Chrome/Firefox. I googled a lot there are few answers at stack overflow but I am not able to find my answer. Is this a server side problem? because so many browsers cant be wrong at same time on Windows.

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  • Haskell's cabal dependency problem with happy

    - by wirrbel
    I have problems installing ghc-mod on my linux machine. cabal worries about "happy" not being available in versione = 1.17: $ cabal install ghc-mod Resolving dependencies... [1 of 1] Compiling Main ( /tmp/haskell-src-exts-1.14.0-1357/haskell-src-exts-1.14.0/Setup.hs, /tmp/haskell-src-exts-1.14.0-1357/haskell-src-exts-1.14.0/dist/setup/Main.o ) Linking /tmp/haskell-src-exts-1.14.0-1357/haskell-src-exts-1.14.0/dist/setup/setup ... Configuring haskell-src-exts-1.14.0... setup: The program happy version =1.17 is required but it could not be found. Failed to install haskell-src-exts-1.14.0 cabal: Error: some packages failed to install: ghc-mod-3.1.3 depends on haskell-src-exts-1.14.0 which failed to install. haskell-src-exts-1.14.0 failed during the configure step. The exception was: ExitFailure 1 hlint-1.8.53 depends on haskell-src-exts-1.14.0 which failed to install. However, it even is installed in v. 1.19, as you can see here: $ cabal install happy Resolving dependencies... [1 of 1] Compiling Main ( /tmp/happy-1.19.0-1124/happy-1.19.0/Setup.lhs, /tmp/happy-1.19.0-1124/happy-1.19.0/dist/setup/Main.o ) Linking /tmp/happy-1.19.0-1124/happy-1.19.0/dist/setup/setup ... Configuring happy-1.19.0... Building happy-1.19.0... Preprocessing executable 'happy' for happy-1.19.0... [ 1 of 18] Compiling NameSet ( src/NameSet.hs, dist/build/happy/happy-tmp/NameSet.o ) [ 2 of 18] Compiling Target ( src/Target.lhs, dist/build/happy/happy-tmp/Target.o ) [ 3 of 18] Compiling AbsSyn ( src/AbsSyn.lhs, dist/build/happy/happy-tmp/AbsSyn.o ) [ 4 of 18] Compiling ParamRules ( src/ParamRules.hs, dist/build/happy/happy-tmp/ParamRules.o ) [ 5 of 18] Compiling GenUtils ( src/GenUtils.lhs, dist/build/happy/happy-tmp/GenUtils.o ) [ 6 of 18] Compiling ParseMonad ( src/ParseMonad.lhs, dist/build/happy/happy-tmp/ParseMonad.o ) [ 7 of 18] Compiling Lexer ( src/Lexer.lhs, dist/build/happy/happy-tmp/Lexer.o ) [ 8 of 18] Compiling Parser ( dist/build/happy/happy-tmp/Parser.hs, dist/build/happy/happy-tmp/Parser.o ) [ 9 of 18] Compiling AttrGrammar ( src/AttrGrammar.lhs, dist/build/happy/happy-tmp/AttrGrammar.o ) [10 of 18] Compiling AttrGrammarParser ( dist/build/happy/happy-tmp/AttrGrammarParser.hs, dist/build/happy/happy-tmp/AttrGrammarParser.o ) [11 of 18] Compiling Grammar ( src/Grammar.lhs, dist/build/happy/happy-tmp/Grammar.o ) [12 of 18] Compiling First ( src/First.lhs, dist/build/happy/happy-tmp/First.o ) [13 of 18] Compiling LALR ( src/LALR.lhs, dist/build/happy/happy-tmp/LALR.o ) [14 of 18] Compiling Paths_happy ( dist/build/autogen/Paths_happy.hs, dist/build/happy/happy-tmp/Paths_happy.o ) [15 of 18] Compiling ProduceCode ( src/ProduceCode.lhs, dist/build/happy/happy-tmp/ProduceCode.o ) [16 of 18] Compiling ProduceGLRCode ( src/ProduceGLRCode.lhs, dist/build/happy/happy-tmp/ProduceGLRCode.o ) [17 of 18] Compiling Info ( src/Info.lhs, dist/build/happy/happy-tmp/Info.o ) [18 of 18] Compiling Main ( src/Main.lhs, dist/build/happy/happy-tmp/Main.o ) Linking dist/build/happy/happy ... Installing executable(s) in /home/hope/.cabal/bin Installed happy-1.19.0 Any ideas? cabal-install version 1.16.0.2 using version 1.16.0 of the Cabal library

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  • HTTP Compression Proxy

    - by Praveen
    I'm looking for a HTTP compression proxy. Basically, I need a proxy to compress images and text to be transferred over a slow internet connection when accessing the web. To put it into a diagram CLIENT ---/fast local network/--- HTTP COMPRESSION PROXY ---/slow internet connection/--- WEB (e.g. Facebook, Wiki, Google) I will be using Squid for caching but from what i've it does not support HTTP compresion (gzip, deflate)

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  • custom MAIL server -> Proxy Server -> Gmail Server

    - by Eugene
    So I have some custom VPS which route emails via MX record in DNS. And I need to setup gmail interface via Google Apps - this step and previous are clear. But how can I insert some middle layer, to check emails messages for special words/etc., so something like spam assasin proxy, but custom product. The question is: How could i setup proxy mail from my server = to proxy server(or application) = to gmail servers? Thank you, for any help!

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  • Running Apache and Tomcat together on different subdomains?

    - by Ritesh M Nayak
    Posted this on ServerFault but didn't get a response. Hoping I will have better luck on the Ubuntu site. I have been trying to get this working the whole of today. I have a server which resolves to the domain example.com . This is running Apache2 and Tomcat 6. The requirement is to direct requests to example.com to apache2 and app.example.com to Tomcat. I know I have to do a VirtualHost proxy pass for this to work. Here are the settings on my server. /etc/hosts file looks something like this 127.0.0.1 localhost localhost.localdomain example.com app.example.com I have two virtual host files for the different domains in /etc/apache2/sites-enabled /etc/apache2/sites-enabled/example.com looks like this <VirtualHost *:80> # Admin email, Server Name (domain name) and any aliases ServerAdmin webmaster@localhost ServerName example.com ServerAlias www.example.com DocumentRoot /var/www <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> </VirtualHost> /etc/apache2/sites-enabled/app.example.com file looks like this <VirtualHost *:80> ServerName app.example.com ServerAlias www.app.example.com ProxyPreserveHost On ProxyPass / http://localhost:8080/ ProxyPassReverse / http://localhost:8080/ SetEnv force-proxy-request-1.0 1 SetEnv proxy-nokeepalive 1 </VirtualHost> mod_proxy and mod_rewrite are both enabled on the apache instance. I have a CNAME entry for both example.com and app.example.com. When accessing app.example.com, I get an 403 forbidden, saying I have no access to / on the server. What am I doing wrong?

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  • Tor check failed though Vidalia shows green onion

    - by Wolter Hellmund
    I have installed tor successfully and Vidalia shows it is running without problems; however, when I check if I am using tor in this website I get an error message saying I am not using tor. I have tried two things to fix this: I installed ProxySwitchy on Google Chrome, and created a profile for Tor (with address 127.0.0.1, port 8118), but enabling the proxy doesn't change the results in the tor check website linked before. I changed my network proxy settings through System Settings Network from None to Manual, and selected as address always 127.0.0.1 and as port 8118 for all but for the socket, for which I entered 9050 instead. This makes internet stop working completely. How can I fix this problem?

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  • tomcat behind apache

    - by dannynjust
    i am trying to use the mod_proxy_ajp to forward all the request from tocat.example.com to example.com:8080 here is what the tomcat server.xml looks like: <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> and here is the apache.conf config: <VirtualHost *:80> ServerName tomcat.example.com ServerAdmin [email protected] ErrorLog logs/tomcat.example.com-error_log CustomLog logs/tomcat.example.com-access_log common <Proxy *> AddDefaultCharset Off Order deny,allow Allow from all </Proxy> ProxyPass / ajp://example:8009/ ProxyPassReverse / ajp://example:8009/ </VirtualHost> but it is not working, any idea?

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  • Not able to set up Gwibber Online accounts

    - by Karthik
    I first tried Ubuntu 12.10 from the Live USB and then eith Virtual Box. In both cases I was able to connect to my google Account from Gwibber. But now I have done a clean install, but am not able to connect at all. I get a rotating circle, which just keeps on going. I am using a proxy server whose details I have given in the Network Proxy settings. I have also set up the http_proxy, https_proxy and ftp_proxy variables.

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  • In Djano, why do I get a 500 server error when browsing, but "python mysite.fcgi" from SSH works fin

    - by Jim
    If I browse to my site, I get a 500 "internal server error." However, if I SSH into my server and go to my site's folder and run "python mysite.fcgi" I see the HTML rendered fine. Obviously, something is wrong, but I'm not sure what. Here is my .htaccess file: AddHandler fastcgi-script .fcgi RewriteEngine On RewriteRule ^(media/.*)$ - [L] RewriteRule ^(static/.*)$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ mysite.fcgi/$1 [QSA,L] Here is my mysite.fcgi file: #!/usr/bin/python2.5 import sys, os sys.path.insert(0, "/kunden/homepages/34/[mydir]/htdocs/projects/django") sys.path.insert(1, "/kunden/homepages/34/[mydir]/lib/python/site-packages") os.chdir("/kunden/homepages/34/[mydir]/htdocs/projects/django/mysite") os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings' from django.core.servers.fastcgi import runfastcgi runfastcgi(["method=threaded", "daemonize=false"]) I'm setting this up on 1and1. It has been a pain, but I think I'm close.

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  • OpenBSD ftp-proxy behind NAT itself

    - by Manuel Faux
    Is it possible to change the PASV IP ftp-proxy of OpenBSD sends to clients, without changing the listen address of redirection control (-b <address>)? I have the following setup: FTP client --> 1:1 NAT router --> OpenBSD router --> FTP server The 1:1 NAT router has a NAT rule to forward everything to the OpenBSD router, the OpenBSD router runs the ftp-proxy -R <FTP server IP>. When the FTP client sends the PASV command, the proxy answers with the Entering Passive Mode (227) message with his own source IP on the interface to the 1:1 NAT router (obviously). Since the 1:1 NAT router is not protocol aware, it forwards this message and the client receives the message with the PASV IP of the OpenBSD router, which it does not have a route to. Is there a way, that I can tell ftp-proxy to send the Entering Passive Mode message with a different source IP?

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  • New Secure Website with Apache Reverse Proxy

    - by jtnire
    I wish to set up a new website that will be accessed by users using HTTPS. I think it is good practise to put the "real" web server in a seperate subnet, and then install an Apache Reverse Proxy in a DMZ. My question is, where should I put the SSL cert(s)? Should I a) Use a self-signed cert on the "real" web server, and a proper cert on the reverse proxy? b) Use 2 real certs on both the "real" web server and the reverse proxy? c) Don't use any cert on the "real" web server, and use a proper cert on the reverse proxy? I'd like to use a) or c), if possible. I also don't want anyone's browser complaining of a self-signed cert. Thanks

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  • I can't login to facebook from any browser

    - by user92974
    I'm Using UBUNTU 12.04. I'm having problems with Facebook. It really hard to login. Takes like 3 or 5 min. At first I thought it was a flash problem but then I realized it could be some proxy's conf file. Other sites doesn't have problems. Yesterday I tried Tor-browser-bundle and I installed privoxy using this rules http://www.neilvandyke.org/privoxy-rules/ . Today I removed privoxy and the conf file with the Ubuntu software center and ubuntu-tweak. I don't really find the problem and my windows pc does not have any problem with the same modem. I don't have an ISP'S PROXY it just a direct Internet connection using automatic DHCP. Maybe I am missing something else. But I want to be sure so, I'm asking. PD: Sorry for my English I'm Argentinian.

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