Squid regex examples For older versions than v5 see the linked pages above Mar 2, 2020 · はじめに sslインターセプトするhttpsプロキシで使うためのホワイトリストの作成を少しちゃんとしてみました。 利用する環境は、前回構築した以下のものです。 squidでActiveDirectory連携とSSLインターセプトするProxyをdockerで手軽につくる ssl_bump? Ah interesting. acl porn url_regex "/etc/squid3/porn. So this is a "client-first" bumping situation in which Squid first negotiates TLS / HTTPS with the client, then completely separately negotiates TLS/HTTPS with Feb 25, 2023 · I'm studying squid for proxy admin. Am I missing something there? Mar 24, 2015 · Is it possible to use Squid as reverse proxy with multiple web servers based on a query string that is passed to squid proxy? This is the example from Squid wiki: acl foo urlpath_regex ^/foo cach Jan 18, 2017 · How do I restrict access to only one website through my Squid proxy? The following doesn't work acl amazon_ireland src 79. I have already tried using SSL Bump Apr 7, 2011 · Solved: Hi all, I'm trying to modify the SplunkforSquid app to read my squid custom log file format correctly. Nov 3, 2025 · 🔗 Bypass Authentication for certain sites 🔗 Outline A very common setup in forward proxy design calls for two different access classes: some destinations should be available to all users all other destinations should require users to authenticate Squid allows for this kind of setup, by simply setting your access-lists in the right order. Feb 6, 2023 · I put together some small regular expressions you can use if you want they are working great for me. com and now squid is stopping the URLs. com as my production environment and deny all access from squid. conf and create the same file with […] ssl_bump bump all acl artifactory_repo_filter urlpath_regex ^/artifactory http_access allow artifactory_repo_filter # And finally deny all other access to this proxy http_access deny all Insert an http_access rule to allow all safe CONNECT requests before you deny everything else. txt : example whitelisting files add*. com alterations. The content of the file looks Mar 17, 2017 · I'm a developer, not a sysadmin but I have the task to maintain a file which is basically a list of domains to whitelist. request from anywhere to anywhere through the proxy server should be allowed. Oct 25, 2022 · The Issue For some reasons, when using squid proxy, some apps/websites/url/link doesn’t work or can’t load correctly. conf Feb 14, 2022 · Hi, I've realized that from pfSense 2. they are read from. *)\. For example, it is not necessary to escape / in regular expressions when using C#, because C# regular expressions are expressed (in part) as string literals. And something else has 403 (Forbidden) the request. Using it may be prohibited by corporate security policy. They might all just be optimized away by the regex compile step. Alex. com sibling . avi . For example, . Also tunneling software like UltraSurf have stopped connecting to the server. The content of the file looks Squid proxy - a short guide (forward & transparent proxy examples, SSL bumping, links to guides) r/sysadmin • 6 yr. This page explains how the ACL system works, available ACL types, and how to effectively use them to implement access control This article shows how to add whitelisted sites to a Squid authenticating proxy server. IIRC, squid. 1 \. e. Before making any changes, it’s a good idea to create a backup of the original configuration file. 2 and later, but can be adapted for earlier versions. but it is possible . The regex equivalent is ^. txt to find all text files in a file manager. conf squid により、通常はすべてのアクセスを拒否し、特定サイトのみアクセスを許可する方法です。 squid で特定のサイトをアクセス拒否する の逆の設定となります。 Feb 15, 2013 · how do you use the redirects on squid reverse? do you still have to place the server & mappings into squid as usual and then add this on top? or can you simply just specify the redirect by itself? any examples of the regex? Sep 9, 2015 · Yep, seems to have done the trick, although you missed the dstdomain definition. Pattern. x. GitHub Gist: instantly share code, notes, and snippets. my task is to have any pc client connected to the proxy only the proxy when accessing certain sites and will use regular wifi connection for everything else. conf. Working example: Here is a similar example where a malformed > > > > extended regular expression is silently accepted by the basic compiler: > >> $ echo "foobar" | grep --basic-regexp 'foo (bar' > >> $ echo "foobar" | grep --extended-regexp 'foo (bar' > >> grep: Unmatched ( or \ ( > I would like either a clear documentation That sounds entirely reasonable - a I want to enable access to all requests on Squid3 server ie. de # # The above configuration treats all requests to foo. Specify the name of the program, plus any command line options if necessary. Oct 13, 2022 · The url redirection configuration for Squid Proxy Server - squid. Configuring a Domain Blacklist in Squid Table of contents Red Hat Enterprise Linux Format Multi-page Single-page View full doc as PDF Dec 22, 2016 · I have spent a month or so of spare time getting this to work and wanted to share my findings. Try reducing the number of characters in your capture groups, or breaking this up into more than one regular expression. SOLUTION Install Squid… in this case, on Ubuntu. It reduces bandwidth and improves response times by caching and … Nov 3, 2025 · Squid Web Cache documentation🔗 Blocking TLD by Squid by Yuri Voinov 🔗 Outline Sometimes you may want to block whole TLD (Top Level Domain). This example is for Squid-3. (. When an event is received, the decoders separate the information into blocks to prepare them for subsequent analysis. I first tried using SquidGuard. 0/23 http_access allow This repository includes a configuration example for setting up a Squid proxy configured for whitelisting and HTTPS enforcing access. 1 (28 Feb 2023), GNUregex has been removed by this pull request. service squid enable service squid start service squid status Porn websites should now produce the following: Nov 3, 2025 · Squid Web Cache documentation🔗 How to block YouTube Videos Warning: Any example presented here is provided “as-is” with no support or guarantee of suitability. The first oddity is that your ssl_bump rules are doing bump without having fetched the clientHello details yet. Nov 3, 2025 · Squid Web Cache documentation🔗 How to cache Media Streams Warning: Any example presented here is provided “as-is” with no support or guarantee of suitability. systemctl enable squid systemctl start squid systemctl status squid If your system is using init, use the service command to start and enable squid. com the proxy refuses the connection. 224. [0-9]+ I know that it stands for IP address, but it allows all URLs to go through, only pinging external address has stopped. txt$. I grabbed an expression list that is mentioned on the SquidGuard page and pasted it into the Regular expressions section. com みたいにサブドメイン一括でしか設定できない。 もうちょっと複雑なルールを May 6, 2025 · Unravel the complexities of SSRF 2025. But I want allow squid user to access test. This file is used in the Squid caching proxy. matches . (. # Example rule allowing access from your local networks. It didn’t work with DSM 6. Blocking it, however, require some additional steps. com parent 3128 3130 # neighbor_type_domain foo. Your block_domains_iphost should thus be an alias for "all". Create a file ( /etc/squid/whitelist. So Squid does not officially support other grammars (yet) even if they work in your particular build. EG: if Regular expression contains Squid configuration file. ) The last argument file must be in quotes and specifies the filename from which squid reads the values. Nor do you need them in, say, Perl (when using an alternate delimiter as in m#^https?://#). Its focus is on creation of missing pieces. mp3, . de ccTLD domain name. As per squid. It has been and remains the fundamental Decoders Syntax Permalink to this headline The decoders extract the information from the received events. . Arguments Example (s) acl myheader req_header text This acl looks for the pattern "text" in request header. So I dont think its that. So I write this in my squid. For example Product domain… Apr 21, 2021 · PROBLEM To configure a proxy server that only allows whitelisted URLs through. Squidtube currently supports YouTube only. 🔗 Details This feature was replaced in Squid-3. I'd like to match anything with subfolder matching example. squid-cache. Skype also is not getting connected. Basic POSIX is the only portable grammar that *all* regex libraries can be expected to support. 🔗 Squid Configuration File Paste the configuration file like this: Oct 4, 2020 · # # For example: # cache_peer foo. You can do a url_regex only for HTTP connections. 4. com # Dotmailer CDNs The aim is to allow domains . conf configuration file you would write something like this: Regular expression pattern matching on the user's name. Once you define the pattern you want to use, you can make edits, delete certa. - darold/squidanalyzer For example, the regular expression " [0123456789]" matches any single digit. Feb 22, 2013 · When I go to the Target categories and create a category, I then have the options of Domain list, URL list and Regular expressions. You tell Squid which authentication helper program to use with the auth_param directive in squid. To simplify the configuration, backup /etc/squid/squid. It is tricky and a long process , need to carefully configure the SSL bump settings by generating certificates. facebook. 2. To block https sites using urlpath_regex we need to setup Squid proxy using SSLbump. Enjoy! About squid. domain. *games. (see them all here. Let’s check it out in practice as a part of a Spock test: def "pattern operator example"() { given: "a pattern" def p = ~'foo' expect: p instanceof Pattern and: "you can use slashy strings to avoid escaping of Nov 3, 2025 · In order to authenticate users, you need to compile and install one of the supplied authentication helpers, one of the others, or supply your own. 0 on CentOS 7 Monitor Squid Access Logs with Graylog Server Create Squid Logs Extractors on Graylog Server Graylog Extractors can extract data using regular expressions, Grok patterns, substrings, or even by splitting the message into tokens by separator characters. There are character classes, metacharacters, and quantifiers to define specific patterns. In a text editor like EditPad Pro squid により、通常はすべてのアクセスを拒否し、特定サイトのみアクセスを許可する方法です。 squid で特定のサイトをアクセス拒否する の逆の設定となります。 Feb 15, 2013 · how do you use the redirects on squid reverse? do you still have to place the server & mappings into squid as usual and then add this on top? or can you simply just specify the redirect by itself? any examples of the regex? Aug 1, 2023 · What are Regular Expressions? Regular expressions, also known as regex, work by defining patterns that you can use to search for certain characters or words inside strings. If you are new to regular expressions, you can take a look at these examples to see what is possible. After running squid3 -k parse squid says there is no problem, and if an user is trying to access to an alternative Facebook link such as (for instance): test. 1 3. com and the need to splice them. Sample configuration for squid proxy server. Optional character ( ? ) This symbol tells the computer that the preceding character may or may not be present in the string to be matched. com problem is that this is RE Apr 3, 2022 · I've been banging my head trying to get squid proxy to work with https. 3 So, I've put in squid. compile (string) method. php : web interface for unblocking traffic I see. The reason is that squid can't see the full URL for HTTPS requests, only the domain. 3 3. Squid can use regular expressions to filter URLs matching specific patterns (url_regex type); if you don't care about the URL-type and the hostname, you can use the urlpath_regex type instead. Feb 12, 2024 · I want to block downloading files like . Examples are Nov 3, 2025 · Squid Web Cache documentation🔗 Feature: HTTPS (HTTP Secure or HTTP over TLS) Version: 2. acl is a keyword, acl_name is the name I give this particular access control list, acl_type is one of the allowed types of ACL, such as dst for destination address, dstdomain for DNS domains, url_regex for matching URLs against regular expressions, etc. 7 3. * or perhaps just / Thanks for your reply. Not least because it must keep up with youtube. Every access list definition must begin with an aclname and acltype, followed by either type-specific arguments or a quoted filename that. access_controlsServices >> Enterprise IT >> Web Caching >> access_controls Mar 15, 2015 · For anyone else like me that stumbles across this post looking for an answer. " See full list on wiki. Apr 25, 2016 · Any squid acl type can be used, not just dstdomain. Discover real-world examples and actionable recommendations for cybersecurity professionals. Statistic reports are oriented toward user and bandwidth control. For information about the two scanning modes Sep 22, 2019 · regex: '^(. Jul 8, 2019 · Squid: Setup reverse proxy based on url path Ask Question Asked 6 years, 4 months ago Modified 6 years, 4 months ago The problem is in the regex. Nov 13, 2015 · I'm trying to add a regular expression dstdomain in to the CF_Unrest ACL in Squid 3. dat, . Most commonly used are Audio, Video, or Audio-Visual Streaming. 🔗 Usage Sometimes somewhere may be need to block whole TLD. service squid enable service squid start service squid status Porn websites should now produce the following: The specific grammar depends on your regex library used to build Squid, so YMMV. * will tell the computer that any character can be used any number of times. Upvoting indicates when questions and answers are useful. This is for use with Roblox and its use with multiple t and c and apis servers for rbxcdn. Which is actually very easy. Example : We may write the format for document file as – “docx?” The ‘?’ tells the computer that x may or may not be present in the This last pattern overlaps with all the previous ones and any possible following as well. Jan 10, 2020 · Your regex has 1855 characters. I use Putty and windows Telnet program, sudo the Linux command line utility to execute commands as root and nano a Linux command line なぜ Squid は URL を細かく指定して SSL 通信を通すことができないのでしょうか。 それは SSL 通信では、通信先の IP アドレスとポート番号は中継者からでも分かりますが、どの URL をリクエストとしているかといった情報は暗号化されているためです。 Mar 26, 2025 · The Groovy language introduces the so-called pattern operator ~. Oct 17, 2019 · Introduction Squid is a web proxy with caching and forwarding capabilities, however, this post will not be concerned with caching web content. conf: acl torrent_sites dstdom_regex -i iso acl music_sites dstdom_regex -i music and my http control like: Nov 27, 2015 · I have problem with regex used in blocking URLS in Squid. I've also setup the certificates etc according to https://support. I suspect you want /. For example the websites are hosted like this on two servers: www. Certain flags, such as the one to ignore case sensitivity can either be set in the code, or as an inline flag in the regular expression. I have succeeded in blocking the websites using urlpathregex Mar 2, 2020 · はじめに sslインターセプトするhttpsプロキシで使うためのホワイトリストの作成を少しちゃんとしてみました。 利用する環境は、前回構築した以下のものです。 squidでActiveDirectory連携とSSLインターセプトするProxyをdockerで手軽につくる Sep 27, 2025 · In this post we will integrating squidguard in a working squid environment to implement blacklist rules and content control over the proxy server. Squid simply establishes a TCP connection to the destination server and responds to the client with an HTTP 200 response to indicate the connection was established. Source here -> https://calomel. This is done by editing the Squid configuration file, which is usually located at /etc/squid/squid. If your system is using systemd, use the systemctl command to start and enable squid. com as a # parent proxy unless the request is for a . 70. #Default: # The peer type from cache_peer directive is used for all requests to Simple Squid Proxy with Auth configured for testing purposes - diemol/squid-with-basic-auth Squid proxy - a short guide (forward & transparent proxy examples, SSL bumping, links to guides) Hi reddit! I wrote this short guide for our private company wiki, thought it might be useful to share my experience with Squid. example. com\. If nothing is missing, squid -z just exits. To block Java regular expressions are case sensitive by default. For example, I use test. Jul 16, 2024 · Squid Proxy Installation with ACL configuration in Linux Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It's pretty concise but with several good links to other guides. doc, . 🔗 Squid Configuration File First recommendation Pattern Directives Reference Relevant source files Purpose and Scope This page provides a complete technical reference for all pattern-based directives in SquidClamav's configuration system. also you can try serverfault to search for SysAdmins solutions regarding this. conf it is- logformat Oct 13, 2022 · The url redirection configuration for Squid Proxy Server - squid. e. The focus will be on using Squid to control which domains are accessible to a user, either through blacklisting or whitelisting. Nov 3, 2025 · Squid Web Cache documentation🔗 How to block YouTube Videos Warning: Any example presented here is provided “as-is” with no support or guarantee of suitability. url_regex or urlpath_regex (or dstdom_regex) if you want the acl to regex match part or all of a URL (or domain). You can do this with the Nov 3, 2025 · 🔗 Feature: Squid-in-the-middle SSL Bump Goal: Enable ICAP inspection of SSL traffic. *)$' ^ matches the beginning of the string (. These directives limit which requests may be sent to a given peer. So, what I Synopsis Regular Expression match against any of the known request headers. search for relevant threads. 2 use The URL as the resource key. It’s hard to separate the stream Other actions are type-specific. 12, as follows: acl CF_Unrest dstdom_regex . rar, . Jan 3, 2016 · Squid proxy native log analyser and reports generator with full statistics about times, hits, bytes, users, networks, top urls and top domains. If you start to experience problems with any of these configs please first check back here for updated config. Apr 4, 2022 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Nov 3, 2025 · ⚠️ Disclaimer: Any example presented here is provided "as-is" with no support or guarantee of suitability. org/squid. prod. Changed the regex with this one: \b(iphone|prod)\b. Nov 3, 2025 · The following configuration example adds in a url_regex rule to force the user to browse to a particular website before the session is reset. How it works Permalink to this headline To understand how decoders work, it will be easier through examples. Apr 4, 2022 · I'm not familiar with squid url_regex specifically, but normally the quantifier * would match zero or more of the previous atom (i. Post by joru. *) matches any character in capture group No. Squidtube is licensed under GNU General Public License terms Contribute to moidotsh/squidder development by creating an account on GitHub. 🔗 Outline This example covers the blocking of all YouTube. conf Then, add the following lines to the configuration file: acl SSL_ports port 443 acl CONNECT method CONNECT http_access deny CONNECT !SSL_ports http_access allow Mar 29, 2007 · I had installed FC6 with squid proxy server. Developer: AlexRousskov, Christos Tsantilas More: See also dynamic SSL certificate generation and origin server certificate mimicking features. Key techniques used in crafting each regex are explained, with links to the corresponding pages in the tutorial where these concepts and techniques are explained in great detail. On the other Squid is governed by a configuration file, normally residing in squid. 5 More: RFC 2817, 2818, Features/SHTTP When a client comes across an https:// URL, it can do one of three things: open an TLS connection directly to the origin server, or open a tunnel through a proxy to the origin server using the CONNECT request method, OR open an TLS connection to a secure proxy Oct 3, 2021 · Squidを使ってプロキシサーバーを構築する際、ドメイン名を使ってアクセス許可リストとかアクセス禁止リストを作る際に dstdomain を使うと思うのだが、パターンマッチで制御したい場合はそのままだと . Recently, I need filter the access of multimedia files from squid proxy. g. regex. This option does not enable validation of any present swap structures. The packages will no longer function in future major releases of pfSense Plus and pfSense CE software. Step 2: Configure Squid to Block Websites Based on Keywords Once Squid is installed and running, you can configure it to block websites based on specific keywords. If you suspect cache_dir corruption, you must delete the top-level cache_dir Oct 29, 2025 · Below, you will find many example patterns that you can use for and adapt to your own purposes. Synopsis Also, using this, you can detect file download or some types HTTP Jul 7, 2016 · 1 I have several proxy rule files for Squid, and all contain rules like: acl blacklisted dstdom_regex ^. I've checked that its supported and enabled ssl-bumping. conf Oct 29, 2025 · A regular expression (regex or regexp for short) is a special text string for describing a search pattern. yahoo. 5 by peek-n-splice This feature was replaced in Squid-3. com and all the pages except the following. To do this, open the Squid configuration file: vi /etc/squid/squid. Mar 10, 2009 · On our Squid server, the admin has put on a new regex rule: ^[0-9]+\. redtube. html - squid. Dec 5, 2017 · For an introduction to the theme, see Intercepting HTTPS Traffic Using the Squid Proxy Service in pfSense By default Squid proxy servers cannot monitor encrypted HTTPS traffic. Regular expressions Step 3: Configure Squid for HTTPS Filtering Now that you have enabled SSL Bumping and created an SSL certificate, you can configure Squid for HTTPS filtering. 4 3. files" acl bad url_regex "/etc/squ May 30, 2018 · Password complexity Regex, Date regex, Email regex, URL regex, IP address regex, Time regex, file path regex and many more with live examples and Cheatsheet for testing immediately Squid Web Cache documentation🔗 Filtering Viber Messenger by Yuri Voinov 🔗 Outline Viber Messenger is end-to-end encrypted messenger/VoIP/group chats/file transfers application. conf Then, add the following lines to the configuration file: acl SSL_ports port 443 acl CONNECT method CONNECT http_access deny CONNECT !SSL_ports http_access allow Nov 3, 2025 · Squid Web Cache documentation🔗 How to cache Media Streams Warning: Any example presented here is provided “as-is” with no support or guarantee of suitability. txt looks like that . 0 2. I want to deny all URL beginning by iso, in squid 3. Please explain how this works! Thanks. For example: acl Cooking2 dstdomain gourmet Squid Analyzer parses Squid proxy access log and reports general statistics about hits, bytes, users, networks, top URLs, and top second level domains. 5 to 2. conf Jan 29, 2021 · SSL Bump to set filters on Squid HTTPS content To set ACL's on HTTPS content, you will need to configure SSL Bump in Squid and import a cert that you generate into your browser and/or OS. The environment in which this is deployed has a client that makes a request through a load balancer which then sends Sep 27, 2025 · In this post we will integrating squidguard in a working squid environment to implement blacklist rules and content control over the proxy server. /* matches zero or more "/" characters. Thought for the day If you change the way you look at things, the things you look at change. Example: acl blockfiles urlpath_regex "/etc/squid/blocks. 04 in this example). Version: 3. emlfiles^([0-9])?. The url_regex means to search the entire URL for the regular expression you specify. This operator can be considered a syntactic sugar shortcut to Java’s java. String match on ident output. Mar 29, 2022 · When the site is encrypted squid can validate only the Domain but not the entire URL path or keywords in the URL. It's down to the way proxy CONNECT works and not a Squid issue. * The patterns match against the domain name: dstdom_regex means destination (server) regular expression pattern matching. pacs Hi! I am trying to set up squid to be a whitelist proxy which should be able to filter both HTTP and HTTPS URLs. conf -- acl test_network src 100. Sep 2, 2023 · 🔍 **Regex to test if string begins with http:// or https://** Are you struggling with creating a regex pattern to check if a string starts with either "http:/ If your system is using systemd, use the systemctl command to start and enable squid. au or . Ensure the service is running. You can think of regular expressions as wildcards on steroids. You have to do a dstdomain for HTTPS connections. exe using squid Proxy in Ubuntu 22. Are you saying that my https connections will always fail unless I use ssl_bump to decrypt https to http connections? How would this work correctly in production? Does squid proxy only block urls if it detects http? How do you configure ssl_bump to work in this case? and is that viable in production? Squid User's Guide Source. With Squidtube, a Squid administrator is able to define policies that allow or deny accesses to content published on supported media portals and preserve some network bandwidth as a consequence. Included: squid. 6 This directive is not available in the v8 version of Squid. 2 2. Oct 11, 2019 · So i have squid proxy server installed and running on my ec2 instance. * ^. example. txt" http_access deny porn porn. ACLs all, manager, localhost, to_localhost, to_linklocal, and CONNECT are predefined. You are probably familiar with wildcard notations such as *. Within a bracket expression, a range expression consists of two characters separated by a hyphen. Another way is to deny access to specific servers which are known to hold recepies. I want to use squid to block access to the production environment but need to allow access to the test environment. sex. They define who can access what content, when access is allowed, and how requests should be handled. com . 2 $ matches the end of the string replace: '\2' \2 matches previously defined capture group No. Apr 12, 2024 · Example : The Regular expression . Media Streams come in many types. They are encrypted, so no Squidtube is an external Squid ACL class helper that provides control over access to videos. For example: Nov 22, 2009 · . util. 3. org Aug 29, 2022 · I want to block a domain but except a specific subdomain. Other browsers may use the certificate stores on the OS. If you have any further questions about these examples please email the squid-users mailing list. conf : Squid configuration file *. For example, ufs-based storage systems create missing L1 and L2 directories while Rock creates the missing database file. Mar 1, 2022 · As of the release of squid-6. [0-9]+\. my regex is egrep compatible but your problem seems different, its not about regex. Apr 22, 2022 · In this article, we will look at how to install and configure a Squid proxy server with HTTPS filtering support on Linux (Ubuntu 20. 6 if using Regular Expression in SquidGuard, only main part of URL is parsed. 1 to 3. com and all subdomains. txt file should contain http_access allow all The url_regex means to search the entire URL for the regular expression you specify. I’m just not sure where the problem lies, and I’ve hit a wall. Pattern directives use regular expressions to control scanning behavior based on URL, Content-Type, client IP/hostname, and authenticated username. RegEx are used in data validation, information extraction, and text modification. 125. Defining an Access List. *youtube\. In your squid. For example: I want to allow the domain example. 0. Description: "Modern operating systems provide a functioning regex library, so we don't need to carry one anymore. 🔗 Problem Outline Squid since old days till today Squid-3. 🔗 Usage Usually Viber works in most Squid’s setups without any additional configuration. Squid takes short patterns and merges them in to one pattern if it can to pass to that optimizer. ago Squid proxy - a short guide (forward & transparent proxy examples, SSL bumping, links to guides) Nov 20, 2015 · 1 when the site is encrypted squid can validate only the Domain but not the entire url path or keywords in the url. 3 by server-first Squid-in-the-middle Nov 3, 2025 · 🔗 Reverse Proxy with Multiple Backend Web Servers 🔗 Sending different requests to different backend web servers To control which web servers (cache_peer) gets which requests the cache_peer_access directives is used. wav, . It seems possible to be a lot more sophisticated with regular expressions and stuff, but this was good enough for me. If you suspect cache_dir corruption, you must delete the top-level cache_dir Step 3: Configure Squid for HTTPS Filtering Now that you have enabled SSL Bumping and created an SSL certificate, you can configure Squid for HTTPS filtering. What's reputation and how do I get it? Instead, you can save this post to reference later. conf it is- logformat Feb 10, 2025 · Regular expressions allow you to search, validate, and manipulate text in an advanced way. txt ) containing the whitelisted URLs. This requires that an ident server process run on the user's machine (s). 04 but unable to do already tried many option with urlpath_regex parameter. However, learned the process used by SquidGuard will work with Proxy Server (PS) after a few changes. I want to create an acl in Squid such that specific locations within a domain can be blocked. com videos. default has an example of how to do that. Use REQUIRED to accept any non-null ident. Took out the a-zA-Z because I obviously only want to allow numbers at this stage. The NoBump. Sometimes we’ve found out that, when using the proxy it’s trying to access the same link via IP address, however, if we replace the IP address with the correct domain name, the link will work correctly, in this […] Synopsis Regular Expression match against any of the known request headers. i heard people have very hard times blocking https though squid. Apr 30, 2025 · Access Control Lists (ACLs) Relevant source files Access Control Lists (ACLs) in Squid provide a flexible and powerful mechanism for controlling access to web resources. 🔗 Caching Dynamic Content using Adaptation This page is an ongoing development. Squid configuration directive acl Available in: v7 v6 v5 v4 3. I've already tried adding this to the end of config file Jul 9, 2023 · For example I have the following ACLs acl mortales src "/etc/squid/listas/mortales" acl bloquear url_regex "/etc/listas/bloqueo" http_access allow mortales !bloqueo Mar 30, 2025 · Are there known issues when using regex ACLs with method in the same line? Could a malformed regex silently break evaluation of all ACLs? Is there a good way to debug which ACLs matched (or didn’t) for a request? If needed, I can share a simplified version of my HAProxy config. Your ACL and http_access config looks fine. 2 Sep 8, 2021 · It almost seems like when checking the ACL for HTTPS trafic, squid only matches the regex against the domain name of the website and not the full accessed URL. sh : example scripts to add new entries into the whitelists proxy. *facebook\. 0/17 acl some_site url_regex google http_access allow amazon_ir Apr 7, 2011 · Solved: Hi all, I'm trying to modify the SplunkforSquid app to read my squid custom log file format correctly. com hosted on server1 example. It matches any single character that sorts between the two characters, inclusive, using the locale's collating sequence and character set. tv or . Sep 18, 2009 · syntax. facebook\. Example from my squid proxy, including comments on how to generate the cert. Or others by any reason. ### If this reply helps you, an upvote would be appreciated. Note that these regular expressions are case-sensitive, so a url containing ``Cooking'' would not be denied. 6. 5 3. Let’s consider the following log sample: 16. au . For example, to create an extractor that matches the browser name in the following user agent string: May 29, 2019 · Install Graylog 3. But you can do much more with regular expressions. Statistic reports are oriented toward user and bandwidth control; this is not a pure cache statistics generator. You can use ident to allow specific users access to your cache. Synopsis Also, using this, you can detect file download or some types HTTP Squid can use regular expressions to filter URLs matching specific patterns (url_regex type); if you don't care about the URL-type and the hostname, you can use the urlpath_regex type instead. xxx. Mar 17, 2017 · I'm a developer, not a sysadmin but I have the task to maintain a file which is basically a list of domains to whitelist. Contribute to oskarpearson/squid-users-guide development by creating an account on GitHub. com I'm configuring a squid proxy to work as a sort of a gateway for traffic egress. Firefox has its own certificate store. While less than ideal, I have worked in other software where these type of workarounds were needed. In this example, only one URL is whitelisted. Aug 28, 2025 · Danger The add-on packages Squid, SquidGuard and Lightsquid are deprecated in pfSense Plus and pfSense CE software due to many unfixed upstream security vulnerabilities. This can be useful for blocking undesired domains, such as those associated with malware or advertisements. May be thought of as a superset of "browser", "referer" and "mime-type" ACLs. Netgate STRONGLY recommends that users uninstall these packages. Tools like Regex101 make it easy to test and debug regular expressions. *\. com will add example. sgmgdl uistng fym isvmj qthf cffrdj tegh sos zxopj seuwts baukzfa mdgca crobt fuu kieq