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0answers
31 views

Squid transparent https certificate error: ssl_error_bad_cert_domain

I have a squid transparent proxy (squid 3.4 in pfsense 2.1) with ssl_bump for https, all my clients trusts squid as CA and many sistes are well working... However I have some problem with websites ...
0
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1answer
80 views

Setting up Squid Transparent Proxy on a machine separate from the router

As explained in the title, I'm trying to set up a Squid Transparent Proxy on a machine separate from the router, and also separate from the private network I want to filter through the proxy. The ...
0
votes
1answer
41 views

Squid running in intercept mode on same machine as browser keeps giving access denied

It's been a while since I last touched squid and I've been sitting here figuring out this problem since the last few hours why my squid setup on this standalone server machine (behind router nat) ...
0
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1answer
30 views

Squid both transparent and forward mode

Is it possibile to configure squid for both transparent and forward-authenticated mode (maybe listening two different tcp ports)?
0
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0answers
26 views

Combining IPTables Accounting and Transparent Proxy Rules

I'm trying to combine IPTables traffic accounting rules with those required for transparent proxying and still maintain the accounting. I have one system that is handling both accounting and the ...
0
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1answer
80 views

redsocks + socks server on different machine

I have the following setup: Host-X (192.168.1.100) running ssh -D so that it can be used as a socks server. Host-Y (192.168.1.101) running redsocks configured with Host-X as socks. They are in the ...
0
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3answers
469 views

Transparent proxying a single docker container to another docker container

I have a pair of docker containers running on the host machine, these containers together makes my application fulfill. So for each iteration/instance of my application requires a pair of docker ...
0
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0answers
99 views

LVS + keepalived for load balancing transparent SQUID proxies

I need to load balance a number of SQUID proxies configured in transparent mode. Below is a simple diagram with one LB and SQUID boxes. ---------- | Client | ...
0
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2answers
2k views

“Invalid URL” Squid 3.3.8 transparent proxy w/ SSL Bump

I am attempting to run the QLProxy Virtual Appliance with SSL Bump in a transparent proxy and cannot for the life of me get it to work. I keep receiving "Invalid URL" errors from Squid (version ...
0
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0answers
43 views

Two transparent gateway using squid return 403

I have two linux gateway using squid as transparent proxy. When I using them individually, everything is fine. But when I using them in the same network, every request from browser will return 403. ...
0
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0answers
68 views

Iptables - double REDIRECTING - is it possible?

I have 2 kinds of proxies in my local machine : stunnel and TOR-VPN. stunnel is listening on port 6666 TOR-VPN is listening on port 9040 The IP of stunnel server is a.b.c.d. I want to get web ...
0
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3answers
147 views

Transparent proxy for HTTPS traffic

I'm looking for a proxy to intercept HTTP traffic na pass through HTTPS traffic. Burp can do that with SSL pass through. With that option, SSL traffic isn't modified or capture, but just tunneled. I ...
1
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2answers
271 views

Transparent proxy and HTTPS with squid

Is is possibile to use a transparent proxy to filter some domains without a man-in-the-middle approach? I would like to guarantee the certificate verification and user privacy, by other hand, I want ...
0
votes
1answer
236 views

how to run pptp over redsocks proxy

I have one (virtual) Linux box in Ubuntu, that has redsocks set up done. Inside the machine, I could confirm that the the redsocks did work (use wget to check the external IP). Now, I want other ...
0
votes
0answers
117 views

Allow some destination ip/hostnames to bypass acl in squid

We have setup squid for an office environment. We are blocking many multimedia file types like mp3, mp4 etc to prevent bandwidth misuse. Now we have setup media streaming server on our gateway server ...
0
votes
1answer
657 views

Iptables fails to redirect traffic to transparent proxy

My goal was to use ubuntu as a router, with Redsocks serving as a transparent SOCKS proxy redirector. Each machine on my network would have its TCP/UDP traffic redirected to a different port where ...
2
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0answers
32 views

How can I throttle the rate of messages with a transparent proxy server?

I am trying to run a client software that connects to a socket server and downloads data. My problem is that the socket server has a max rate of messages per second, and it disconnects a client if ...
2
votes
1answer
685 views

Automatic Proxy Discovery wpad.example.com doesn't work

I'm trying to setup an automatic method for discovery my Squid proxy on the local network, by setting the browsers with "Automatic detection". The proxy is fine and works if I specify the IP:Port ...
0
votes
1answer
188 views

How to make Squid log url and forward traffic without proxying?

I want to use squid to listen on port 80 and log all url requests and simply forward it to original destination without changing anything. How to achieve that?
0
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1answer
272 views

Squid, WCCP and Transparent HTTPS

Sorry if this has been answered but i just can't get it to work for me. We would like to log all HTTPS & HTTP requests but not to use Squid-in-the-middle. We would like the proxy to connect the ...
0
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0answers
2k views

Transparent Proxy squid TCP_MISS/503 Error in all pages

I m trying to make a squid proxy server with to work as a transparent proxy server, and i m facing some issues that i m unable to figure out the reasons. The setup i m using is several VLAN's with ...
1
vote
1answer
245 views

Set up proxy for vpn server on ubuntu server 12.4

I have a vpn server with HTTPS, L2TP, OPENVPN, and PPTP. I want to set up a proxy on the server, so all connection that comes from vpn clients, they will use that. I created the following bash script ...
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0answers
972 views

TPROXY Not working with HAProxy, Ubuntu 14.04

I'm trying to use HAProxy as a fully transparent proxy using TPROXY in Ubuntu 14.04. HAProxy will be setup on the first server with eth0 111.111.250.250 and eth1 10.111.128.134. The single balanced ...
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1answer
594 views

How to check if Ubuntu 14.04 Kernel has TPROXY

I'm using Digital Ocean's Ubuntu 14.04 image and needs the kernel to be compiled for TPROXY. Is there a way to check whether the current kernel supports TPROXY?
0
votes
1answer
1k views

haproxy transparent mode on 14.04

As per my previous question SSHD real-ip behind haproxy - I'm now attempting to setup HAProxy to transparently pass the IPs to the backend services. tproxy modules loaded / and supported in haproxy ...
0
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2answers
234 views

Remote IP and SMTP Proxy

Is it possible to proxy emails - with postfix for example - transparently so the backend mail server will get the last SMTP server IP address (rbl purpose) and not the Proxy IP address? If it is ...
0
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0answers
63 views

What should be the correct http response code for custom proxy login/register page

I configured a firewall rule on a dd-wrt router to redirect http connections to a shell script, and drop the remaining ports, for the unregistered range of IPs. I am trying to tell the clients they ...
4
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3answers
15k views

How to setup client for squid transparent proxy?

Server Details Squid Transparent Proxy Version: 3.3.8 OS: Ubuntu Server 14.04 Server IP: 192.168.1.3 Squid config file (excluding comments using grep) root@ubuntu:~# grep -v '^$\|^\s*\#' ...
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2answers
76 views

Transparent proxy cache on BGP multihome

Provider A have transparent caching with squid . In the situation which a client has multihome BGP with provider A and provider B then client does not send its outgoing traffic (upload) to provider ...
1
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1answer
609 views

Security implications of running SquidProxy on the main pfSense Firewall

I want to start a discussion about the pros and cons of running a SquidProxy server on the same pfSense box as the main firewall. Today I have one pfSense doing all the firewall things, like routing ...
-1
votes
1answer
120 views

Transparent caching solution

I would like to in some cases make transparent caching for certain sites. Let's say that I have a static list of site from where I want to cache all downloads, ie: the client wants to download ...
2
votes
1answer
264 views

Host doesn't send ACK-SYN packets for transparent proxy

I am setting up a transparent proxy using haproxy, the setup works without the 'source 0.0.0.0 usesrc client' line. When I add that line in, the endpoint is called from the original client's ip ...
-1
votes
1answer
505 views

How can I set up a transparent proxy using squid and squidguard which has time-based acl based on MAC addresses?

I have a linux based server and I want to control access to internet based on MAC addresses of devices. How can I do that?
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1answer
3k views

How to configure Windows Server as a Web Proxy? [closed]

I'd like to set up a transparent web proxy on my home network. I know you can do this with Squid on Linux. I was wondering if Windows Server includes a web proxy?
0
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1answer
749 views

Trying to setup transparent, load balancing, SSL reverse proxy. Is it possible?

I've done a few weeks worth of research on this topic for a project, and unfortunately I'm a simple code monkey, my knowledge of networking and SSL are limited. Pretty much every search I've done so ...
3
votes
1answer
2k views

Squid SSL transparent proxy - SSL_connect:error in SSLv2/v3 read server hello A

I am trying to setup a SSL proxy for one of my internal servers to visit https://www.googleapis.com using Squid, to make my Rails application on that server to reach googleapis.com via the proxy. I ...
0
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1answer
195 views

Setting a transparent proxy without changing existing IP Address values

The end goal of what I'm trying to achieve is: Block access to certain websites and view bandwidth used by IP Address. Without changing my employee's gateway address. -- Our internet connection is ...
1
vote
1answer
103 views

Proxy to remote proxy?

One of our partners require us to use one of their proxies in order for us to reach various services there. What I would like to achieve is to set up a local proxy at which I point the domains, so ...
-2
votes
1answer
172 views

Transparent AntiSpam solution in ISP scale [closed]

We have and ISP with adsl , broadband etc subscribers (average 10000 online users with 1M of Bandwidth . average ) . Some users infected by spammer viruses which makes our ip address spaces ...
3
votes
1answer
195 views

Selective use of transparent proxy on per-connection basis

TL;DR - I'm planning on using an application-level firewall to forward only requests for HTML content to a transparent proxy. So the initial GET request for google.com (for example) that returns an ...
-2
votes
1answer
71 views

Setting up a DHCP/Proxy Server

Current setup: Modem -> Firewall(DHCP) -> Switch and Wireless Router |-> Computers If I wanted to setup a Proxy Server in there, it would have to replace the Firewall correct? The idea is so that ...
2
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0answers
29 views

Evaluating and redirecting http requests

I am trying to evaluate traffic on port 80 to determine whether or not if we need to redirect a request, or pass it through, while being transparent. Scenario: User connects to our system via Wifi. ...
0
votes
1answer
647 views

apache module to perform search and replace operations on response bodies?

I am trying to do search and replace operation on response bodies using a transparent apache reverse proxy configuration, the below config using "mod_substitute" and "mod_proxy" works as expected : ...
0
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0answers
934 views

Can't get Squid to work with Intercept

I have a Sqiud Proxy server I am trying to add Transparency to using the Intercept feature. Currently the Proxy server accepts and functions fine as a standalone proxy for users. However when I add ...
0
votes
0answers
69 views

config squid to set specific acl for username and then set it to the ip addr of username

Assume your executive of corporation, sit on his clerk desk PC, and login to his username on the network (authenticate with Active Directory), of course he wants his full access to internet, but he ...
0
votes
1answer
1k views

preventing squid forwarding loop with IPtables

I have a web application, and I'd like to limit file upload size. I thought I'd try using squid for this, via its directive request_body_size_max. I have my webserver running on port 8080, and I've ...
1
vote
1answer
359 views

Redirect traffic on port 80 into apache for unknown macs, and into squid for some macs

I have a linux box behaving like a router that handles two network interfaces: eth0 for internet and eth1 for LAN. I set up iptables in order to redirect all the web traffic coming by the LAN into a ...
1
vote
2answers
957 views

Bypass transparent Squid proxy on Tomato USB for specific sites

I'm using a router with Tomato USB to forward port 80 requests to a Ubuntu Server with Squid 3 in transparent mode. Someone on the Tomato forum adapted these instructions for Tomato: #!/bin/sh ...
0
votes
1answer
49 views

Setting up a transparent proxy for a database

Currently my setup is as follows :- Database client/library <---------------------> Database I'd like to have the following :- Database client/library <---> Proxy <-------------> Database ...
2
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0answers
423 views

Squid as fully transparent reverse proxy

I have got a few web servers running on my server and I want all of them to be accessible via port 80. I set up squid as a reverse proxy and it works fine. I, however, need the source ip address to be ...