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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7
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3answers
2k views

Detecting Tor proxy by reading request headers

I am a newbie to the field of security. As I was trying to explore more about HTTP request and response headers, I came across this website which provides a detailed analysis of the request header ...
0
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2answers
3k views

Can you track someone using a proxy? [duplicate]

This is past experience, and is not the case anymore since I am a programmer now and have nothing to do with security anymore. However in the past I had a person constantly trying to make comments of ...
2
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2answers
653 views

Allowing user to access password protected website without disclosing the password

A friend of mine has the following problem. She is an accountant and her clients frequently give her their login credentials so she could download their accounting data from various financial ...
1
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1answer
496 views

What is the difference between an HTTPS traffic setup with Stunnel and a SSL-VPN

We have a scenario where we cannot connect to our stunnel server running on port 443 on our network, which only allows access to Internet via a proxy server. On the contrary, when we tried a SSL VPN ...
3
votes
1answer
233 views

Can a captive portal be secured [closed]

I am interested in using a captive portal on a public network. After reading the wikipedia article and several questions here on sec.SE, I don't understand how I can secure it, or even, if I can ...
-1
votes
2answers
4k views

How can using a VPN increase network speed? [closed]

There are lots of guides online which suggest that using a VPN or proxy will gain better speed or 'free internet' however this seems unlikely. If my ISP is performing packet shaping on my connection. ...
2
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2answers
330 views

Force clients to use proxy [closed]

Here's my network configuration: The proxy server is running Ubuntu with Squid on port 3128 and DansGuardian on port 8080. I'd like to force all clients to use the proxy server - specifically, ...
3
votes
2answers
697 views

How can I implement authentication in my proxy server?

I have a proxy server, it will have a captive portal page. Users will be required to sign in before gaining access to the internet. So far I am aware of IP and/or MAC address based authentication. ...
-6
votes
1answer
270 views

How to camouflage at the best on internet? [closed]

What it would be a decent setup to cover your traces on internet and still having a decent connection? SSL? Proxy? Private VPN?
4
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3answers
263 views

The safest way to circumventing Iran's Internet censorship

We usually buy services like VPN, SOCKS, Kerio [Kerio Connect?]... to circumvent Iran's Internet censorship policy. Recently, one of the shops started selling [one of] Kerio's products, for which I do ...
-1
votes
2answers
549 views

Allow embedded videos while keeping youtube blocked [closed]

Our organization has launched a training program for employees. the hosting server(internal), has YouTube videos embedded. we have YouTube blocked, and employees access the internet via proxy. How can ...
1
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1answer
104 views

SSL Communication and Proxy

Let us say that I have a client and a server communicating using SSL. If a hacker sets up a proxy between the client and the server, will he be able to decrypt the data which is being sent?
1
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1answer
268 views

How should this system be protected from ARP spoofing?

Background My university uses an authenticated (squid) HTTP proxy server for accessing the internet. There are a few reasons for this: They want to track misuse of the connection Our university ...
5
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3answers
1k views

Man-in-the-middle Blue coat proxy ssl or what?

I have just discovered that my workplace have enabled some new feature in the blue coat network proxy. It seems like all https certificates in chrome on windows is being issued by this internal ...
8
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6answers
676 views

Getting credentials using proxy server

Is it possible to get the username and password we enter into sites like facebook using proxy server? The scenario is like this : 1.My laptop is connected to a network. 2.It is configured to use a ...
1
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2answers
338 views

Is there an anti-proxy detection available?

Sites like Wikipedia and Google (among others) don't let you sign up through a proxy or TOR (at least with Google, you have to provide SMS verification if you sign up through proxy.) Somehow they ...
0
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1answer
1k views

Proxy / VPN Quality Check / Detection

Is there any way to build a script which detects or rates proxies like Maxmind's proxy detection software? I have already tried to use this code, but it doesn't detect all proxies, in fact it detect ...
1
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1answer
277 views

Tor traffic seems to be exiting from different Tor exit nodes - is that expected?

I seem to be observing some odd behaviour whilst experimenting with TOR. It's entirely possible this is just my own ignorance as well, in which case I would appreciate some ...
5
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6answers
2k views

Is it possible to locate Tor/proxy users? Spam is getting on my nerves

I'm managing a huge forum (over 15k posts and 500 users) and lately some guy uses a VPN (probably) to spam my forums with topics such as: "GAYGAYGAYGAYGAYGAYGAY" "FRIGHT IS GAY HAHAHAHHAA" "ADMINS ...
1
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1answer
613 views

Windows Update - Interception

I'm trying to monitor the HTTP requests/responses made when performing a Windows Update. I have a Windows 8 machine configured with a proxy in IE. I've also imported via netsh for winhttp: netsh ...
8
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5answers
4k views

Is a Tor router really safer than a proxy?

If I use a Tor router to browse the regular internet that it has to leave the Tor network through an exit node. Apparently the exit node has all the information from the original user it came from on ...
-2
votes
1answer
312 views

How to test a proxy for tcp and udp traffic? [closed]

Is there a simple way to test a proxy to determine if it is correctly forwarding TCP and UDP traffic? An ideal method would be script-able.
1
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1answer
749 views

OpenVPN through company proxy and surfing history

Been trying to find an answer to no avail. Probably I just don't understand the terminology... So if anyone may shed some light in plain English, that would be awesome. I connect to a paid VPN ...
-2
votes
1answer
351 views

Problems configuring Webscrab to intercept trafic from localhost(Webgoat) [closed]

Problems configuring Webscrab to intercept traffic from localhost(Webgoat). I am trying to go through the Webgoat tutorial and at one point I need to use Webscrap. I configured the proxy though ...
2
votes
1answer
319 views

Proxy server and IP address blockade

i am in china. so i use web freer to use blocked sites like face book and you tube. we use broadband connection provided by our university. some times the server goes too down and we can not use ...
2
votes
1answer
312 views

Route traffic from iPhone to desktop and back

I have some iOS app to pentest, and the target server is accessible only through the jailbroken iPhone's APN. My problem is, that I want to configure the traffic in such way so I can intercept and ...
1
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2answers
357 views

Tor - chain of connected nodes?

For a long time now I have been wondering how to find out where you actually connect to with Tor. The only thing you can do in Vidalia is show a Network Map of all available Nodes worldwide, which is ...
1
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2answers
938 views

Best practices for operating a Bitcoin-Qt client regarding netwok privacy?

As privacy is part of security, I know there is a Bitcoin SE here but they couldn't answer my question so I hope it's appropriate to ask it here. I don't ask about how to secure my wallet on my ...
10
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1answer
658 views

Is Nokia's “institutional MITM” of SSL traffic vulnerable to CRIME attack?

It's recently been in the news that some Nokia phones proxy all traffic, including SSL connections, through a Nokia proxy. This is effectively an "institutional MITM" attack on users those phones. ...
9
votes
4answers
989 views

Can real end-to-end SSL encryption be made?

I've read the various questions tagged [ssl] and [mitm] and [proxy] and I couldn't find a duplicate. I've got a very precise question but first I need to give some background. Basically I'm very ...
3
votes
1answer
404 views

Burp proxy between non proxy aware device

I want to intercept traffic between a Ethernet connected device, which is not proxy aware and modify/inject javascript. Conventionally when testing webapps I would use burp. Can burp sit on my ...
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6answers
327 views

Secure internet access while traveling

Given the risks of shared wi-fi as stated here, here and here, I would like to ask what are good practices for someone who is always traveling. While having your own wi-fi with a strong WPA2 password ...
1
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3answers
228 views

How this kind of mechanism considered as vulnerability?

From following news, http://thehackernews.com/2012/12/etsy-for-iphone-loophole-allows.html Someone just setup a proxy to intercept traffic between browser and https protocol, then it called ...
5
votes
2answers
106 views

Is it actually feasible or useful to use a high number of proxy servers?

In the movies, it's not uncommon to see the digitized global map projected on a huge wall with a line of light (presumably a user's connection) travelling back and forth all over the globe in a ...
1
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1answer
324 views

RADIUS proxy chains

RADIUS is a widely deployed remote authentication protocol. I'm looking here at its use in wireless roaming. The RADIUS protocol allows for proxies and chains of proxies: |CLIENT|<->|Access ...
0
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2answers
1k views

Is it possible to spoof the last proxy of an X-Forwarded-For Header?

I'm using a firefox plugin https://addons.mozilla.org/en-US/firefox/addon/x-forwarded-for-header/ to spoof the X-Forwarded-For Header to 8.8.8.8. For the following php page: echo ...
14
votes
3answers
5k views

Authenticating a Proxy server over HTTPS

When browsing to a website over HTTPS, the web browser typically does a lot of work in the background - negotiating a secure channel, validating the site's certificate, verifying the trust chain, etc. ...
1
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2answers
320 views

Is ProxyPass more secure than directly hosting PHP site?

Here's two possible ways, Use Apache and PHP module to interpret a php file Use nginx's ProxyPass with fastcgi So, would passing the request to another server with ProxyPass more secure than a ...
0
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1answer
132 views

Proxy Non-HTTPS logins through EC2

I've been thinking a lot about password security these days, and have been becoming more and more hesitant to use services that have login forms that are not on HTTPS. As I was researching security, ...
2
votes
3answers
1k views

How to block the websites on client machines

In our office we are blocking sites like facebook, twitter etc.The problem is that some of the users bypass the proxy and firewalls through external sites which allow us to bypass proxy, like: ...
2
votes
1answer
451 views

Open source or common implementations for reverse proxy web application security

I realize there is already a question similar to this one, but this is somewhat of a follow-up. I understand that a reverse proxy server by itself is hardly useful as a web app security measure ...
6
votes
4answers
12k views

Advanced techniques for detecting a proxy/getting original IP

In what manner can a website detect my original IP address, even though I'm using a proxy server? I've noticed this with a few sites. There are four proxy methods I've used: Firefox with a proxy ...
6
votes
3answers
2k views

SOCKS proxy security concerns

As claimed, "A socks proxy simply transfers data from a client to a server, not penetrating into this data contents (therefore it can work with HTTP, FTP, SMTP, POP3, NNTP, etc.)", I really can't buy ...
1
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2answers
1k views

Can an insecure wifi connection block users who download a lot, from say: torrents or usenet? [closed]

Can an 'insecure community network' have automated features to block internet or slow speeds on computers which download a lot, from say: torrents or usenet? I have two computers and one has ...
1
vote
1answer
203 views

How does http://un****-us.com/ work?

There is this site un**-us.com which supposedly allows you to bypass ISP rules such as content restriction on a particular area. Now , it is well known that routing your traffic through a web proxy ...
4
votes
2answers
2k views

Does Java applets reveal the real IP address, even when using proxy or vpn?

Can a Java applet reveal the original client IP address, when browsing through a proxy or a VPN? Why?
0
votes
2answers
398 views

Anonymous proxy over SSL [closed]

Can you name any anonymous proxy software that don't use VPN connections? Basically, I'm analyzing different encrypted traffic and now I need to analyse a simple anonymity proxy traffic. I'm analyzing ...
2
votes
3answers
845 views

How to intercept an application that bypasses local proxy

I am behind a corporate proxy and the application that i have to test will work only if it is given an exception for using proxy server(i.e it is added to the exceptions list of the sites that do not ...
4
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2answers
5k views

How do you properly setup Tor on Windows 7?

How do you properly setup Tor on a Windows 7 box to guarantee that ALL connections will run through Tor?
2
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2answers
669 views

Interesting article on a vulnerability found in Tor

This article describes how French researchers compromised users using Tor. I'm not sure I fully understand or agree with it. I don't see what Bit Torrent has to do with anything? I mean they start out ...