Squid is a FOSS package licensed under the GNU GPL and is primarily used as a web proxy server and cache.

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2answers
218 views

URL filtering and squid performance

We are using squid web cache transparent proxy in our company and we usually have 450 users browsing during peak hours. We get lists of URLs (upto even 1600 URLs per list) from the national telecom ...
0
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1answer
239 views

ProxyChains is redirecting packets destined to local machine to the proxy server

I am using ProxyChains to connect to my proxy at college. It works very fine except that it even redirects packets meant for a local port to the proxy server : ...
3
votes
1answer
766 views

Squid not resolving a particular URL

I've seen this question asked many times on serverfault (and other places), but have not found a solution. I'm using Squid version 3.1.19 standard Ubuntu 12.04 package. I get the following error in ...
3
votes
3answers
513 views

BYOD and Google SSL

I run a school network with a BYOD program in place. I have a linux proxy (squid) with content filtering by Mind (fork of dansguardian). Everything works fine over HTTP, the problem is of corse when ...
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votes
1answer
1k views

Squid 3 custom error message

I'm currently migrating a tiny Zentyal firewall from 2.2 to 3.0. Almost complete, but I can't figure out how to update the Squid 3 error page with some additional paragraphs. So far I've figured out ...
1
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1answer
2k views

Simple proxy authentication using squid

I'm trying to configure squid to require authentication. I've got squid to work without authentication, than I htpasswd -c /etc/squid3/passwd foo after this, I've replaced http_access allow all ...
0
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1answer
31 views

Squid - expire at specific time each day

Does squid have an option to expire content at the same time every day as opposed to using the refresh_pattern to limit the age of a query? I am currently running 2.6 on RHEL 5.5.
1
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4answers
335 views

Allow users to access only a few websites [closed]

I want to block my network users to access most of the external websites. Some users may need access to Facebook (like the users from marketing department), while others may need access to banks ...
1
vote
1answer
262 views

Prefetch and cache HTTP requests on Squid or any proxy server

Is there a proxy server (preferably Squid) or similar software that will let me queue say 100 URLs upfront from a list or API and cache the HTML data transparently (making parallel requests). Then ...
0
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1answer
120 views

routing traffic - iptables

Im trying to route some traffic on my lan. I have a squid3 server on 192.168.0.1:3128 and all web traffic is going through squid3. (Transparent via iptables) And now I have a testing server up and ...
0
votes
2answers
84 views

limit connexions to my proxy

I have a slow internet bandwith (1024 KBITS/S) to share between 30 users. To control the traffic, I have setup a basic proxy server with iptables. Logs and Packets captured with tcpdump show that ...
-1
votes
1answer
153 views

Squid transparent proxy: bypass the dhcp server

I'm working on a simple network who consist in 4 ADSL connections managed by a ER5120 load balancer. The load balancer is connected to a switch who connects with the guys at the office. Now, I'm ...
0
votes
1answer
438 views

Squid Proxy on Windows fail to start

I have a squid proxy running fine on windows , but when I introduce the line url_rewrite_program C:\Python27\python.exe C:\Squid\scripts\1.py Then squid will fail to start with System error 1067 ...
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0answers
78 views

Squid Open Source whitelist? [closed]

I'm going to be doing some Squid filtering and the approach is to whitelist sites. Does anyone know of any open source or community lists so that I don't have to start from scratch?
0
votes
1answer
512 views

Squid squidGuard on Debian 6

I have an ADSL connection with a modem sagem (NAT) and connect one machine to cable >(fedora17 = 192.168.1.2) into this machine I installed oracle virtualbox and in this I >have two machine connected ...
0
votes
0answers
110 views

set https forwarding with squid and iptables

I have a Linux as router, eth0 (192.168.0.60) connect to LAN, eth1 (10.100.33.239) connect to Internet. squid works well, I can set 10.100.33.239:3128 or 192.168.0.60:3128 as proxy in web browser and ...
-1
votes
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 ...
0
votes
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 ...
1
vote
1answer
134 views

What class of software should I use to intercept HTTP requests and perform an action

We have inherited an old Web application that needs to be extended with some logging capacities for compliance purposes. Unfortunately, we can't change the application. The application receives XML ...
1
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1answer
206 views

Caching large amounts of data

We need to cache all psd/zip files from our amazone S3 storage. The amount of the cache between 150-200 Gb (we need to store files at least 2 month). Now we use transparent proxy squid without any ...
0
votes
0answers
38 views

Squid server cant recognize USER

I use this setup for user authentification on a LAN. auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 5 auth_param ntlm keep_alive on ...
2
votes
1answer
223 views

Squid takes 2 minutes to cache a small pdf

We are having a problem that certain pdf from a specific url take a long time to display. Squid seems to use a long time to cache it (over 2 minutes) for 110kb. If I browse this pdf without going ...
0
votes
1answer
1k views

How can I solve http_port 3129 intercept with squid?

My system: uname -a FreeBSD server.local.jmorenov.com.co 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 ...
0
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0answers
277 views

squid configuration only for http, how to show an error for https thru squid

squid Version 3.1.11, not transparent 1200 LAN clients surf the web thru the squid server. Browsers' configuration, programmatically pushed to clients, is http server:3128 https --- On the ...
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votes
2answers
2k views

Pfsense 1.2.3 transparent proxy not blocking https

I have configure squid in pfsense 1.2.3, and was able to block http sites using a black list, but I was not able to block https sites. Any solutions ?
1
vote
0answers
415 views

squid proxy overrides my host header, what can I do?

I have the following problem with squid: Some clients access concurrently 62 servers via a squid proxy. All servers have the same host name (www.example.com) but different public IPs (123.123.123.2 ...
0
votes
1answer
1k views

Squid won’t store my image

After spending hours configuring squid 3.2.5, I only get TCP_MISS. To narrow the problem, I will focus on one PNG file that I want cached, but note that I get TCP_MISS for every single request, not ...
1
vote
2answers
232 views

Squid showed up on port 8080. Possible Rootkit?

I recently attempted to connect to my EC2 server on 8080 and had some strange issues that weren't occurring earlier. NGinx (though setup for :81) captures any requests on port 8080. If I stop ...
2
votes
1answer
515 views

How To Enable HTTPS filtering with Squid3 and Qlproxy?

I'm trying to set my proxy to filter HTTPS traffic just like the HTTP traffic. I have followed this guide for setup SSLBump If I set it, even the HTTP traffic won't be accepted through the proxy. ...
1
vote
0answers
598 views

How To Block Skype using Squid3?

I have just installed Squid3 on my server and trying to block the Skype messenger. Still no luck. I tried to add the rules in Squid wiki (http://wiki.squid-cache.org/ConfigExamples/Chat/Skype) to the ...
0
votes
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
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0answers
216 views

Incorrect iptables setting preventing server from returning data

I'm have a web server X, a transparent squid proxy server P and I'm using iptables to redirect all outgoing traffic on X to P, such that when a page on X is accessed, X will retrieve/curl a page Z and ...
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0answers
40 views

Can Squid3 access PHP Helpers

Can Squid3 use PHP helper programs other than for ACL and redirect? I need Squid to use a PHP program (with mysql access) to set the parent proxy that should be used for a particular connection, so ...
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0answers
146 views

FreeRadius with either Nginx or Squid

I am looking to use FreeRadius with either Nginx or Squid to auth users access to my proxy server however i do not want users to have a username and password i want to setup my proxy server so that it ...
2
votes
1answer
110 views

Loadbalance a bunch of Squid servers

I'm trying to load balance a network of proxy (squid) servers (currently 8 nodes) efficiently. I'm currently balancing over a network wide proxy autoconfig but that seems to not work properly. Some ...
0
votes
1answer
40 views

Trying to disable the need for user/pass on local squid3 server

I'm trying to disable the need for user/pass on my squid proxy by #-ing the following lines auth_param basic program /usr/lib/squid3/ncsa_auth /etc/squid3/passwd auth_param basic children 5 ...
3
votes
1answer
279 views

Squid gives always tcp_miss reverse proxy

I added installed latest squid3 in front of apache as reverse proxy. The problem is that it gives always tcp_miss, in fact I have not yet found a single TCP_HIT message in the log file, and most of ...
1
vote
0answers
235 views

Squid3 proxy server is not working for a single website

I face an annoying and hard to track its root problem with squid3 proxy server running on Ubuntu Server 12.04. Squid is working fine for all websites I have tried so far to access, except ...
0
votes
1answer
59 views

Getting Times of Squid3 operations

We have has some complaints from outlying offices about internet access being 'slow'. I can’t really see anything wrong, but I would like to gather some data to try and find out what is going on. ...
0
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1answer
174 views

Unable to get squid working for remote users

I am trying to setup squid 3.2.4, but I have not been able to get it working for remote users. Works fine locally. Unable to figure out what I am doing wrong... http_port 3128 transparent ssl-bump ...
0
votes
1answer
245 views

Block HTTPS traffic to only selected sites

The Squid at my office is currently set up as a transparent proxy. I tried to block sites like facebook.com and twitter.com and was successful because just typing in those domains do not default to ...
-1
votes
2answers
580 views

HTTP Compression Proxy [closed]

I'm looking for a HTTP compression proxy. Basically, I need a proxy to compress images and text to be transferred over a slow internet connection when accessing the web. To put it into a diagram ...
0
votes
1answer
265 views

Squid - Selective reverse proxy and forward proxy

I'd like to setup a squid instance to do selective reverse proxy for a configured list of URLs whilst acting as a normal forward proxy for everything else. We are building new infrastructure, ...
0
votes
1answer
348 views

Squid dstdom_regex not working

I want to deny all URL beginning by iso, in squid 3.2.3 So, I've put in squid.conf: acl torrent_sites dstdom_regex -i iso acl music_sites dstdom_regex -i music and my http control like: ...
-1
votes
1answer
455 views

squid will not listen on specific IP

I have a public subnet with squid installed. Let's say my subnet is from 1.2.3.2 to 1.2.4.254. When I set the following: http_port 50000 http_port 1.2.3.2:50000 it is working. But when I set: ...
1
vote
2answers
199 views

Redirect without changing URL

Here's the setup. We have a hardware load balancer with an http virtual cluster. Let's call this virtual cluster example1.com. This virtual cluster load balances between two squid reverse proxies ...
1
vote
1answer
402 views

Limit number of simultaneous connections squid makes to a single server

Note: I am asking about outbound concurrent connection limits, not inbound, which is sufficiently covered on existing questions Modern browsers typically open a large number of simultaneous ...
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votes
3answers
1k views

Trouble Letting Users Get to Certain Sites through Squid Proxy [closed]

We have Squid running on a RHEL server. We want to block users from getting to Facebook, other than a couple specific sites, like our organization's page. Unfortunately, I can't get those specific ...
1
vote
0answers
134 views

blocking https connections using squid trans [duplicate]

Am a linux user. I have a proxy server setup running squid-trans for dealing my wireless connections. But i found that it can easily open https connections (like https://www.facebook.com) . Is there ...
0
votes
1answer
163 views

Traffic control plugin for Squid Cache

Is there any traffic control plugin for Squid Cache? One that allows me to check if that specific user has consumed X amount of MBs or similar.