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3 views

Squid log has many repeated entries

I'm running Squid as a transparent proxy on my home router, a machine running IPFire. I noticed Squid was maxing out the CPU and causing poor network performance, so I looked at the log. I'm seeing ...
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0answers
20 views

Transparent Proxy on External Server (not on client network) [closed]

I am trying to setup a transparent proxy that is not on the same network as the client. I am using centOS7 with squid as the proxy, squids transparent proxy seems to only work on the same network as ...
2
votes
1answer
26 views

HAProxy TCP Transparent Mode Remote Servers

Alright so I have a server box with HAProxy installed and I need it to forward traffic to two MySQL servers. They are both located in completely different datacenters. It works when I have this ...
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3answers
1k views

Setting up a transparent proxy

I am looking at setting up some kind of visitor wireless access for our company however our internet connections all run through a external proxy. After many wasted hours explaining to visitors how ...
0
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1answer
83 views

pfsense(2.3.1_5) Squid transparent proxy redirects internally hosted sites from http to https

I'm having an issue with Squid's transparent proxy on my pfSense firewall. My company hosts an internal git server at the following address (for example purposes) http://git.gitserver.com/. From our ...
4
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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 ...
1
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1answer
3k 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 (...
1
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1answer
73 views

How to forward HTTPS traffic through squid transparently?

I want to redirect all HTTP and HTTPS traffic to squid acting as a transparent proxy. This traffic will then be blocked or authorized (in bulk) during certain hours. Specifically I do not want to ...
0
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0answers
17 views

set a explicit web proxy software to act as transparent proxy

I have a web proxy software (ccproxy) which creates an explicit proxy in the sense that the clients had to enter ip and port of web proxy to access it (proxy configurations in IE for example). ...
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0answers
21 views

Is Sonicwall SSL Decryption and Inspection the same function as Using a Transparent Proxy and Swapping out the Certificate with Squid 3?

I was wondering if Sonicwall SSL Decryption and Inspection is the same function, mainly; swap out the issued SSL certificate and decrypt traffic while issuing a local SSL certificate to the calling ...
5
votes
4answers
14k views

How can I tell if there's a transparent HTTP proxy on my broadband?

I'm trying to work out if my broadband provider is using a transparent proxy. Mostly I don't mind if they do, but today I'm trying to preview a site I have moved from one server to another, before DNS ...
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0answers
110 views

It is possible to use not NAT able VoIP Softswitch behind pfsense/siproxd

We are using diffrent VoIP Softswitches (asterisk/squire) behind a pfsense Firewall and connect to diffrent SIP Endpoints. The local softswitches only have a local IP and the Endpoints are public IPs. ...
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1answer
215 views

Nginx transparent reverse proxy for https and http to another server

I have researched this for a while but the use cases that others have asked about are more complex/different to what I am trying to achieve. I have Nginx serving pages on both ports 80 and 443 for ...
0
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1answer
102 views

Iptables rules for transparent proxy, and no proxy

Hi I'm using redsocks and iptables port redirection rules to set a transparent proxy, and works fine, but I need to establish iptables rules for non proxy access, to domains, domain1.com and domain2....
4
votes
1answer
200 views

Whitelisting outgoing traffic from docker containers

I have a server running multiple docker containers in the following configuration: One of the containers is a reverse proxy binding to the exposed ports of the other containers. This is the only ...
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0answers
602 views

Getting Squid and TPROXY with IPv6 working on CentOS 7

I'm having trouble getting TPROXY working with Squid and IPv6 on a CentOS 7 server. I was previously using a generic intercept setup with NAT, but it was limited to IPv4 only. I'm now expanding the ...
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0answers
40 views

How to make squid hit the cache by path only?

I need to cache the objects with URI's like http://ftp.debian.org/debian/dists/stretch-updates/non-free/i18n/Translation-en.bz2 and http://httpredir.debian.org/debian/dists/stretch-updates/non-free/...
0
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1answer
304 views

Prevent non-intercept Squid traffic being tagged by Policy Routing

I've re-edited the original question, because I have changed the setup since the original answer, which was for NAT based setup. NAT is no longer being used and has been replaced with TPROXY for IPv6 ...
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1answer
3k views

Transparent squid proxy on ubuntu 14.04 server [closed]

I have ubuntu 14.04 LTS server installed on my server, and I would like to install transparent proxy server on my server for LAN network. Please help me with this. Thanks in advance.
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2answers
84 views

apache2 HTTPS to HTTP reverse proxying

I am trying to set up what i believe needs to be a reverse proxy in Apache 2. I have apache set up and i have Mod_proxy,mod_ssl,Mod_rewrite all enabled. i am trying to control a media player through ...
1
vote
1answer
1k views

Transparent proxy which preserves client mac address [closed]

I have a customer that wants to intercept SSL traffic as it leaves their network. My proposed solution is to setup a proxy that is transparent and both layer 2 and layer 3 so it can simply be dropped ...
0
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3answers
333 views

iptables with transparent proxy, how to pass the user IP

I have a local transparent proxy, but my problem is that packets, when re-routed, have the router IP and not the user. These are the rules that I currently have in place: iptables -t nat -A ...
0
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1answer
133 views

Is HAProxy built with TPROXY on Ubuntu 14.04

Ubuntu 14.04 has TPROXY (How to check if Ubuntu 14.04 Kernel has TPROXY). How do I find out if the version of HAProxy packaged for 14.04 is compiled with TPROXY?
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0answers
412 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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1answer
46 views

Transfer traffic between iptable chains

My understanding is that normally any given packet will only ever interact with one iptables chain either INPUT FORWARD or OUTPUT. However I want to have all traffic on port 80 that has neither its ...
5
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6answers
35k 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*\#' /etc/...
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1answer
238 views

NAT routing based on DNS name (reverse TCP proxy?)

Introduction I have one router, running pfSense (can be anything since it's a virtual machine on VMware, so if the solution requires anything else, that's fine by me) and behind it I have multiple ...
6
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4answers
17k views

transparent SSL proxy myths and facts

I've been searching for many hours now about a way to setup a transparent proxy for SSL (not Squid). The general answer is that I can't, but I know there are some ways, though. My purpose is only the ...
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1answer
952 views

openbsd pf squid transparent proxy using a bridge

I want to use OpenBSD 5.7 as a filtering bridge in front of my router, and as part of that run a transparent proxy (squid 3.5.1) to manage web access. I have set up the openbsd machine as a bridge, ...
1
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3answers
467 views

What is the best way to get PRECISE domain name from ip address logged in iptables log

In iptables I am logging certain public IP addresses... say of websites visited from different workstations, depending on destination port number... All this is not really relevant to the question but ...
0
votes
1answer
473 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
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1answer
1k 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
128 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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1answer
921 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
2k 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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2answers
5k 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 3.3.8)....
0
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1answer
632 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 ...
3
votes
3answers
7k views

Easy way to “edit” the traffic coming from a tcp host (linux)

I need to make some small modification to incoming traffic from a known tcp host:port before the process handling the connection get the stream. For example, let 192.168.1.88 be a remote host which ...
0
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0answers
127 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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1answer
415 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?
1
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2answers
715 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
3answers
944 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 ...
0
votes
1answer
591 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
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1answer
1k 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
votes
0answers
40 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 ...
3
votes
1answer
4k 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 ...
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0answers
5k 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 ...
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1answer
473 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
2k 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
2k 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?