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3answers
596 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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2answers
511 views

Tunnel an SSH connection transparently (no ProxyCommand)

Here's the scenario: the user runs "ssh -i sshkey user@server1". I want the SSH connection to be tunneled through server1 to server2. Normally, the user could do this himself using: ssh -i sshkey ...
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2answers
459 views

RAID0, LVM or JBOD for best performance squid proxy server?

I need to choise the storage type for a squid proxy server with 100Mb/s traffic. RAID0, LVM or JBOD Which is better for performance (don't care the data reliability) ? This storage is only for the ...
3
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1answer
395 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 ...
2
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1answer
35 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
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1answer
162 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
1answer
450 views

Transparent proxy which preserves client mac address

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 ...
1
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1answer
231 views

Simple proxy server for Windows that supports chaining proxies?

Are there any small/simple proxy servers for Windows, that support chaining further proxies? Example: Browser connects to proxy server. Proxy server connects to another proxy server. Proxy server ...
1
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1answer
1k views

ClearOS transparent firewall and web proxy mode possible?

In other firewall software packages I have seen the ability and am hoping it is possible with ClearOS to put it in to transparent or bridged mode where the device sits physically between the client ...
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1answer
37 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 ...
0
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1answer
52 views

.NET WebRequests fail on network with Blue Coat proxy

I have a .NET 3.5 application that makes a standard http WebRequest: var webRequest = WebRequest.Create(new Uri("http://myserver.com/target.xml)); var webResponse = webRequest.GetResponse(); This ...
0
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1answer
387 views

Transparent redirect or proxy in Apache, preserving incoming request

When a user first hits our server, we want to capture some information about the incoming request: GET parameters, Referer header, &c. The general idea is that when we get an incoming request that ...
0
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1answer
91 views

Squid proxy loading from the localhost web server

I've just set up a squid transparent proxy inside my network. The proxy works fine, however it seems some sort of caching policy is causing the proxy to instead go grab a copy of the website, it's ...
0
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1answer
149 views

How To Route All HTTP Traffic from eth1 to the Squid Proxy? The Iptable rules?

I have just setup a squid proxy server. The server have two interfaces. eth0 connects to the router and eth1 is connected to a switch where all the other machines connect. The server also have a DHCP ...
0
votes
1answer
289 views

how can make transparent proxy on more than one port?

i want to make transparent proxy with linux ( centos) , i want all incoming connection on port 1000 - 2000 on eth0 forward to eth1 on port 1000 - 2000 in transparent mode i have 2 server 1- ...
0
votes
1answer
397 views

how to recompile kernel iptables by enabling tproxy

I'm new to the Kernel iptables/netfilter. I'm having red hat linux with Linux Kernel 2.6.37-rc1,iptables 1.4.10 ,squid 3.1. But my iptables are not configured with tproxy table. Now, i want to ...
0
votes
1answer
624 views

tproxy squid bridge very slow when cache is full

I have installed a bridge tproxy proxy in a fast server with 8GB ram. The traffic is around 60Mb/s. When I start for first time the proxy (with the cache empty) the proxy works very well but when the ...
0
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1answer
508 views

automatically forward all network traffic to a proxy

I've used cntlm to automatically add NTLM headers to https requests when ssh'ing to a particular host. What I need to do now is to send all outbound internet traffic (80/443) from any program ...
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1answer
76 views

Squid connection to 0.0.0.0 Failed

trying to set up a Squid transparent proxy. All is good for the transparency, however the proxy occasionally runs into errors such as "connection to 0.0.0.0 Failed" Is this common? Am I doing ...
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0answers
25 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. ...
2
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0answers
188 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 ...
2
votes
0answers
394 views

Using nginx as reverse proxy with haproxy as loadbalancer

I am tring to use nginx and haproxy together. I am doing that because haproxy does not support gzip compression. My aim is that first using nginx for gzip compression than forward it to haproxy for ...
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0answers
138 views

Transparent Proxy For Individual Web Apps?

At work, I perform automated testing of our front-end web apps that use Active Directory for authentication. One tool (Sahi) uses a local proxy to go between the web app and the user's browser, to ...
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0answers
174 views

Can I make an ACL in squid for transparent connections?

I have a squid proxy that transparently intercepts connections from an internal network, and is explicit for connections from another network. I want to use authentication for the external network, ...
0
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0answers
74 views

Squid 2.6 and https trasparent proxy

I have a question about Squid configuration as trasparent proxy using SSL. I would to use Squid 2.6 as trasparent proxy with http and https connection. I followed this steps: 1) I configurated my ...
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0answers
109 views

Deny All Allow Video Streaming Site Firewall Proxy

I need to build a hotspot for children to view a video streaming site with random tablet devices that a client is going to provide. The req uested environment should restrict access to only the video ...
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0answers
58 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 ...
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0answers
67 views

ip_conntrack vs TPROXY performance

I'm currently trying to set up a high performance load balancer who - ideally - would be able to handle more than the ~65k connections that are possible without using a transparent proxy, with HAProxy ...
0
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0answers
61 views

Chaining transparent and non-transparent proxies using Squid

I have a question about the possible setup when chainig a Squid proxy behind a transparent proxy behind a non-transparent proxy, as in: [user pool] -> [Squid 1 (transparent)] -> [transparent proxy] ...
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0answers
44 views

Transparent proxy with netsed not working for tcp

I am trying to create a transparent proxy wherein i am redirecting outgoing packets on port 80 to port 10101 and use netsed to modify outgoing tcp packets Below are the iptables rule: iptables -t nat ...
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0answers
280 views

TCP_MISS/Squid-Error: ERR_CONNECT_FAIL

I setup an apache web server and squid3 running on the same machine, but when I try to access the web-server pages from client machine, I always ended up with an ERR_CONNECT_FAIL error. I tried all ...
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0answers
266 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
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0answers
47 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 ...
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0answers
31 views

Proxy on top 2 databases

I have 02 database server, their addresses are 127.0.0.1:1234 and 127.0.0.2:1234, I want to have a proxy service that will run on 127.0.0.3:1234 that will able to redirect to the database which still ...
0
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0answers
498 views

WSUS on non Domain Clients without editing the Registry

We are a school with limited bandwidth. We have tons of Windows clients which are not joined to the domain, and we will never directly manage. Is it possible to set up a WSUS server that will ...