The word "proxy" is mostly used as short for "proxy server", which is a server that acts as an intermediary between a workstation user and the Internet so that the enterprise can ensure security, administrative control, and caching service.

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32 views

Reverse proxy and corporate PKI

Here at OU=PKI we've been requested to issue a certificate with CA capabilities to install it in our reverse proxy, so that it could issue trustable certificates for every single web. (SSL ending) ...
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0answers
24 views

How can i access in host file whiles using a proxy server [migrated]

I using a proxy server (Freegate to be specific). I an unable to access the connections (dns mappings) that i have set in my host file. That is i want to access "127.0.0.1 YourInstanceName" whiles ...
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0answers
20 views

what to use as a proxy for desktop applications [on hold]

I'm familiar with Burp Proxy, Paros, Web Scarab, etc. for use as a proxy between my browser and the internet. I've got a need for similar tool that can interrupt and change traffic between other ...
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1answer
41 views

Determine if Tor works

I have installed Tor on my Mint computer, but how do I determine if Tor is working? When I visit http://whatismyip.com, my old IP is shown. Should it not be a different IP when I'm using Tor? Here is ...
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1answer
49 views

Using Fiddler to capture few important Details

I want to implement the following requirement. In an online Bank Transaction, a User wants to send an amount of $1000 to an Account A. I want to see that the request is going unmodified to Banking ...
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3answers
85 views

Go through proxy server to Find an original IP Address [closed]

I work for a small company who has troubles with third parties selling our products on Amazon. Sometimes those third parties have websites and when I use an IP address finder online it gives me ...
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0answers
28 views

Using Proxy Server, can gateway know which URL i am trying to open

I am using a Proxy for example UltraSurf, if I try to open a URL in my web browser, obviously web browser is going to send this information to my Proxy, then Proxy is going to communicate my Gateway. ...
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2answers
63 views

Are SSL encrypted communications through a company network safe?

If I'm using Skype, Facebook, or another type of communication at my work, can the network administrator see my Skype and Facebook conversations, although its encrypted with SSL? I found this text: ...
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2answers
680 views

HTTPS login vs MITM attack

http://www.troyhunt.com/2013/05/your-login-form-posts-to-https-but-you.html My question is, if the threat is that someone controls your internet connection and can serve up bad login pages, couldn't ...
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2answers
55 views

How Web-proxy and Virtual-Hosting are complications for HTTPS?

While studying HTTPS and related transport layer security protocols(SSL/TLS), I came to know that HTTPS suffers from two complications - Web-Proxy and Virtual-Hosting. I can understand how ...
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1answer
102 views

bypass proxy using another ip address

I have a scenario in which i have two computers with static ip address that run under common proxy..and lets say computer A is blocked from accessing certain site lets say,www.facebook.com and another ...
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3answers
80 views

Can ISP detect a proxy connection's contents?

No idea if this is right place to ask. In my country, by law, all ISPs are required to block certain websites. People can not access such sites. But, through proxy websites every one can access ...
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1answer
55 views

How to get orignal ip of user even if he is using proxy [duplicate]

Question is clear from title, is there a way to track user even if he is using a proxy. The point is, am i secure enough to surf internet with proxy to hide myself?
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2answers
55 views

Using a Proxy to Log Http/s requests and Performance Evaluation

I have to read http/https messages sent from a client system and see that the messages are not being modified within system by any malware and the server receives what exactly the user wants to send. ...
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1answer
60 views

Which OpenSource Proxy is Better and easier to use? [closed]

I have to read http/https messages sent from a client system and see that the messages are not being modified within system by any malware and the server receives what exactly the user wants to send. ...
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2answers
94 views

OWASP ZAP Proxy HTTP issue?

I am using ZAP 2.2.2 and I have generated a dynamic SSL certificate and added it to my Firefox browser. I then started a proxy on localhost with port 8090 and configured Firefox to use it. When I ...
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1answer
40 views

Is it reasonable to use a security proxy when integrating two web applications?

Background: We're in the process of integrating two web applications. The other one, application A, is a publicly accessible Internet service, which is provided by a third party and which offers Web ...
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1answer
37 views

Key Management in Interception Proxies?

I'm reading Jarmoc's Black Hat presentation on SSL/TLS Interception Proxies and Transitive Trust. I have a few questions on some of the key management practices. In the paper, Jarmoc states: To ...
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1answer
103 views

Is authentication through proxy sites safer?

usually in office or wherever whenever we are blocked with gmail and facebook websites,we used to browse the site with the proxy sites,we used to pass our login data through proxy sites,my question is ...
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2answers
78 views

Does reverse proxy between two web servers impact security of both?

Situation: Consider the site: example.com, hosted at web server A. A WordPress blog is to be installed on a different web server, B. In order to route a WordPress installation to a subdirectory on ...
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3answers
277 views

Does a TLS interception proxy present the user's browser with the end server's certificate?

I know that TLS (commonly but mistakenly called SSL) interception works by establishing two encrypted tunnels between a client and server, with the interception device (proxy) terminating both tunnels ...
2
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1answer
181 views

HTTP Reverse Proxy: Correct way to do SSL to backend

If I have a HTTP reverse proxy that communicates with it's backends in an untrusted datacenter, or across datacenters, I would want to use HTTPS in the backend, as talked about here: Reverse Proxy ...
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1answer
34 views

Is it possible to use AH in transport mode on an IPSec channel with mediation?

I understand that it's not possible to have Autentication Header with a regular NAT, because it messes with the IP header protected by AH. How about proxies? Do they change anything in the packet? ...
3
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1answer
407 views

Documented Best Practices for Reverse Proxy Implementation

I'm looking for some best practices documentation for implementation of a reverse proxy. We need to allow an internal database / web server incoming access to the outside world and are trying to ...
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7answers
757 views

Does a chain of proxies (e.g. one connecting to another and another and so on) make tracing the original IP harder/impossible?

I see nobody here has asked this question. What if one, instead of just using a single proxy, connected a proxy-to-proxy in a very long chain and downloaded something (illegal) using secure packets ...
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1answer
187 views

Just found out my internet was routing through a proxy, how screwed am I?

I checked my internet setting today and it seem that everything has being going through some proxy server for the last few weeks. How screwed am I? Could they get my internet login password? All my ...
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1answer
103 views

Hacking through a browser? [closed]

I was looking at this question: How can you be caught using Private VPN when there's no logs about who you are? and everyone who read it and responded seemed to be taking for granted that every ...
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4answers
287 views

Outbound proxy which whitelists by server certificate?

Short version: Are you aware of any proxy or firewall device which will permit outbound SSL connections to hosts with approved* SSL certificates only? Long version: Consider the following ...
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4answers
112 views

If you connect through a website via a proxy, and the proxy doesn't save information, can you still be linked back?

Say I connect to a specific proxy that I know will not keep information/data about who connected to it, and I go to a website and do something deliberately illegal. If the "middle-server" doesn't have ...
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1answer
81 views

Proxy aware or DNS capable meterpreter?

I'm having issues traversing a proxy protected network and was wondering if there are meterpreter implementations which allow proxy awareness (automatically using windows AD credentials) or which can ...
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1answer
265 views

How to MiTM SSL on a device with no proxy settings

I'm trying to MiTM a device on my network and having some problems. SSLstrip doesn't work because the URL is https://, and I can't use something like Fiddler because the device has no configurable ...
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0answers
452 views

Tor alternatives (change IP address often) [closed]

Are there any services that like Tor let you have many IP addresses and change them quite often? PS. The problem with Tor is that they list publicly their exit nodes, so its very simple to detect that ...
1
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1answer
163 views

Long-lived SSL connections to dynamic IP addresses

I'm seeing some odd behaviour on my proxy server logs since I started blocking direct outbound connections to port 443 (thus forcing applications to use the proxy server for HTTPS connections). I'm ...
3
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1answer
718 views

How can I detect if someone is using an ssh tunnel as a proxy to connect to a VPN?

I've got an SSH server setup in a remote location, which I use to tunnel traffic from an android tablet. On the tablet, I have the Cisco AnyConnect app to connect to my company's VPN. We want to be ...
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1answer
2k views

Configure OpenVPN as a local proxy to use it only when needed

First, I think it is the proper place to post my question (and not serverfault or networkengineering). If not, please tell me what's the correct place. I used FreeGate. I configured the Firefox ...
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1answer
742 views

Problems with intermediate ssl certificates and ssl proxy

I'm currently implementing a SSL-proxy, and have run into some problems regarding certificates. We have a offline "Company Root CA", and an online "Company intermediate CA". On the proxy I have ...
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2answers
90 views

non-MiTM Reverse SSL

Do non-MiTM Reverse SSL Proxies exist? Or do all proxies that do SSL-SSL mappings decode and then re-encode HTTPS traffic? If this is the case and I want to map https://mypublicdomain.com -> ...
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1answer
222 views

ReverseProxy and PCI Compliance

My company has a PCI compliant billing gateway and they expose a service for submitting credit card payment details. I am writing a (Single Page Application/end-to-end javascript) website for them ...
4
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1answer
483 views

How does dnsleaktest.com find my DNS provider

Can't see how they find this over the web. I'm on Windows, its in my network config. It changes when I use a VPN provider, but not when I use a local socks proxy connected to a remote server over ...
2
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2answers
815 views

SSL VPN Detection and possible to block

Is it possible to determine the difference between a VPN on port 443 compared to standard SSL traffic? In order to access SSL websites you need port 443 open but if you setup a VPN Service on port ...
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1answer
177 views

Identifying Visitor's using Proxy [duplicate]

I want to detect my website visitor's using any duplicate proxies ? If so how to avoid them? also how to identify the proxy is an HTTP proxy or a SOCKS proxy ?
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1answer
613 views

Is there a way to block Ultrasurf OR can I have McAfee nuke it?

I'm working for a high school. We have given every student their own laptop. Some of our students have figured out how to bypass our web filter using a program called Ultrasurf. If you're not ...
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0answers
88 views

Why my proxy is still having some connections blocked

I am behind a firewall in France. I connect to proxy A, in Ireland with Dante via SSH port 22 and make a tunnel forwarding port 1080. The proxy works as expected but still having a port range ...
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1answer
256 views

configure squid to use another digest proxy

I'm connected to a squid proxy that does digest authentication , and I have installed another squid proxy on my centOS 6.4 and configured it to use the upper proxy . The problem is that I need ...
2
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3answers
5k views

Why is JavaScript disabled in the Tor Browser Bundle?

Didn't Tor create a local socks proxy? Why doesn't all the Web traffic go over this local socks proxy and why is JavaScript disabled in the Tor Browser bundle? If you would connect with firefox for ...
3
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1answer
114 views

Is using a WebServer as a proxy a secure solution

There are 2 machines - both running Windows Server. Machine1 can access the internet. Machine2 cannot access the internet, but can access Machine1. Machine2 needs to continuously access one external ...
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1answer
6k views

How to run any application through a proxy with PUTTY? [closed]

Maybe I did not search for it the right way but I could not find the solution. Maybe I am misinformed but if I understand correctly I could use PUTTY to run any Windows applications through a proxy ...
5
votes
1answer
385 views

Retrieving client certificate using Tcpdump results in zero length certificate

I am trying to proxy a mobile app (with Fiddler), which sends a client certificate to the server it connects to. I would think that capturing traffic with Tcpdump, retrieving the client certificate ...
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1answer
451 views

Why can I see the Basic Auth credentials in plaintext when using SSL

I just read this about the security about Basic Authentication over SSL: Is BASIC-Auth secure if done over HTTPS? And I don't get it. I just installed ProxyDroid (http proxy) on my rooted android ...
5
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4answers
480 views

One time password over SMS - exposing the Authentication Server to the internet

Consider a Internet Based Website which does authentication. The Web Application can do the authentication by calling an Authentication Server which is not connected to the internet. The ...