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Questions tagged [squid]

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

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

In addition to its primary usages for web proyying and caching, it supports FTP and has limited support for several other protocols, including TLS, SSL, HTTPS and Gopher.

It has a wide variety of uses, from speeding up a web server by caching repeated requests (reverse proxy); to caching web, DNS and other computer network lookups for a group of people sharing network resources (regular proxy); to improving security by filtering traffic (layer 7 firewall).

Squid's homepage is here, and its Wikipedia entry is here.

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Squid Proxy Server Not Accepting External Connection?

I am running squid 3.5.12 on Ubuntu. I have the followings in /etc/squid/squid.conf acl SSL_ports port 443 acl CONNECT method CONNECT acl acl_allowed_ip src my.client.ip.address.com http_access allow acl_allowed_ip http_access allow…
HCSF
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Block websites for my VPN users

I have strongswan running fine, I need to block some bad websites by it's domains from being visiting by VPN users, I tried many methods but no luck as redirect traffic from vpn to proxy server like squid but I discovered that forwarded traffic to…
Realbitt
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How to redirect traffic from squid to vpn?

I have a windows machine with a squid server and VPN client connection(which is not the default gateway) What I want is to redirect some traffic from squid to my default ethernet connection and some to VPN. Ethernet adapter Ethernet: …
ogbofjnr
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How to check if a remote server is up through a proxy?

I have a series of lab linux server (centos/rh) that are built using an automated PXE install via kickstart file. I would like to use another automated process (ansible) to monitor when the installations have completed. Normally I would use a…
dranobob
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Allow only one ip to connect to squid server

I'm trying to allow only one ip to connect to the squid server but it seems it's not working I did ban all domains and allow only one domain but for the ip address it's not working here what I have done: http_access allow localhost…
Buildermine
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Why I'm Getting "Service web-cache lost on WCCP clinet" error on cisco router?

I'm configuring wccp and squid. Here is wccp configuration or router: ip wccp web-cache redirect-list wccp-access group-list wccp-server ! interface FastEthernet1/0 ip address 10.10.10.1 255.255.255.0 ip wccp web-cache redirect in duplex auto …
Mehran
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How to debug Squid ERR_DNS_FAIL

I am managing a couple of web proxies running Squid 4.10 on Ubuntu 20.04LTS in several locations distributed worldwide. One of them has developed a nasty habit of occasionally failing to access a web page. The user receives instead an error page…
Tilman Schmidt
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SQUID Transparent Proxy: Error INVALID_URL and ACCESS_DENIED

I configure squid proxy on Centos 7. I am using Squid version 3.5.20. I also try squid 4.10 on Ubuntu 20.04, but I got the same problem. Maybe my ACL was wrong. I configure DSTNAT on Router to intercept HTTP traffic from 192.168.1.0/24 to Squid…
xdnroot
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Squid Proxy Server - Port numbers - HTTP - HTTPS etc

I have a virtual proxy client and I have a squid proxy server. root@arch:/etc/squid # cat /etc/squid/acls/ports.acl 80 # http 21 # ftp root@arch:/etc/squid # cat /etc/squid/acls/sslports.acl 443 # https 3001 # ntop I am curious about port numbers…
ArcherPacman
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Squid : Do not cache these destinations ( I do not want some address to be cached by squid )

I have a virtual proxy client and I have a squid proxy server. I would like to add some addresses to block caching for them. Either their domain or IP address: www.apache.org 188.184.21.108 root@SERVER:/etc/squid # cat…
ArcherPacman
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How does Squid 4 compute a request's cache key?

Sorry if I wasn't able to find the relevant doc on this: how does Squid 4 compute a given GET request's cache key? Is there a way to instruct to ignore HTTP headers in how it does this, i.e. only use the URL? Long story short, I would need Squid to…
user4867444
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TCP Window Full / Zero Window probe in CentOS 5.4 behind a Squid proxy

A friend's fresh install of CentOS 5.4 is misbehaving behind his university's proxy. If he takes the machine home and connects it directly to the internet, it works fine. If he installs some other OS (even an older version of CentOS) on the machine,…
Asad R.
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Error when starting squid

i am getting this error when i am starting up squid, it is running on a mac mini cache_cf.cc(346) squid.conf:4871 unrecognized: 'https_port'
Gatura
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Configuring Squid proxy server

I have installed squid on a mac mini and would like to configure it to be used as a proxy Any ideas where i would start, especially setting up the ACLs, am using webmin as the GUI tool for configuring squid
Gatura
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Squid Proxy with ten of thousands of cache peer

I tried having 20 lines of cache_peer and its working correctly, however when i added ten of thousands of cache_peer, and i cant really connect to it. Any idea why ? My goal is to have hundred or thousands of authenticated users connect to my…
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