F5 irule uri equals That’s where iRules come in, to save the day for us. "client: [IP::remote_addr] -> This concept is as old as compilers. May 25, 2019. pdf, change the host header in the HTTP request to la. I'm attempting to change the uri of a URL. *, but that Chapter 7: iRules Table of contents | > iRules is a BIG-IP feature which plays a critical role in advancing the flexibility of the BIG-IP system. We are having trouble with an irule that matches a value in a uri and send it to a different pool. cmdref. We make no guarantees or warranties regarding the available code, and it may contain errors, defects, bugs, inaccuracies, or Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Hi all, I want to write irule to check according to both uri and client ip address and here is my test irule ; when HTTP_REQUEST { if { ([HTTP::uri] contains "/eqwebservice") and ([class match [IP::client_addr] equals allowed_ip_adresses]) } { pool My_443_Pool } CSV Tabular Data Sideband Importer - This iRule adds the ability to import CSV-formatted tabular data to a table via an HTTP sideband connection. 事件是iRules构成中的重要的一部分，不同事件代表数据在整个访问过程中的逻辑位置。一般用when开头。 命令是irules中对数据进行操作的直接函数，如：[HTTP::uri]，该命令中HTTP代表HTTP协议，uri表示取这个包含. e. This command replaces the BIG-IP 4. 1 - v10. but I need to switch between 6 different URIs F5 iRules is a powerful scripting language used on F5 BIG-IP load balancers to customize and control the behavior of traffic flowing through the network. 1 and a uri abcabc/, then rewrite the header to maintain the original URL? I have been looking at proxypass, just not sure if that is the correct solution. Whether it’s re-writing a URI for an inbound HTTP request or parsing part of the TCP payload and twiddling the bits to read a bit differently, or Yeni F5 iRule oluşturma. com and the URI equals /documents/china. ; Scatter Charting Response Times - when HTTP_REQUEST { log local0. Each operator produces 1 if the condition is true, 0 otherwise. ends_with 以 l 表达式的值必须是布尔型（一个数值，0为false，其它的数字为true；或者是个字符串值，例如true or yes 为 true，以及 false or no 为 false）. Hello all. Cause None Recommended Actions iRule is used for redirecting to another URL based on a URL path. Thus, the iRules feature Hi, rewrite uri only if necessary. client. skip to content; cmdref. This is a short post to remember the differences between the 3 of them. It is still an HTTP request and not an HTTPS request. when HTTP_REQUEST Hi Joanna, Thanks a lot, I think your solution is almost the same of my first solution, but it's better to check it with yours. As shown below, when HTTP_REQUEST { if {[HTTP::uri] eq "/"}{ Description. Environment iRules HTTP Logging Cause None Recommended Actions To collect and compare the client IP before deciding to log the HTTP details, you can use code similar to this example: when HTTP_REQUEST { if {[IP::addr [IP::client_addr] equals "10. Tests must be written before the iRule code; Tests must then be run to validate that the test fails before any changes have been made to the iRule; iRule code is then written to verify 在前面的文章中，我提到过每个iRules的核心几乎都是IF命令。在这些情况下，如果你需要为某个值执行条件判断，这里还有一个可以在大多数情况下使用的条件命令，它比IF执行起来更加快速并且简单易懂。 # This iRule will handle URI and complete URL redirection. Using the snat command, you can assign a specified translation address to an original IP address from within the iRule, instead of using the SNAT screens within the BIG-IP Configuration utility. If the string starts with a dash (-) and is not preceded by the double-dash, it will be interpreted as an option for the switch command itself. If you want to find out whether the iRule gets hit at all, you could add another logging line, like below. 0 creation # ----- # Description: # This iRule redirects all http (80/tcp) traffic to the secure https (443/tcp) # except for hostnames that exist 使用iRules，您不仅可以将流量发送到Pool，还可以向单个Pool Member，端口或URI发送流量。您创建的iRules可以很简单，也可以很复杂，具体取决于您的内容切换需求。 [IP::client_addr] equals 10. Edit: iRule was tested and is functional on a lab system The BIG-IP API Reference documentation contains community-contributed content. The host header is the only place the FQDN would appear. when HTTP_REQUEST { log local0. Because IP data is available to all events after TCP, you can skip the CLIENT_ACCEPTED event altogether and perform your IP::client_addr check directly inside the HTTP_REQUEST event. I've been having issues with this all morning. Listen to The Click-Down As an example, one of the most common uses of iRules when it was first introduced was to redirect all traffic from HTTP (port 80) to HTTPS (port 443) without affecting either the host or the requested URI for the connection. I’d like to create an irule to allow only certain traffic that matches both host and path. Here is an example iRule: when HTTP_REQUEST { if {[string tolower [HTTP::uri]] starts_with "/abc" } { HTTP::uri [string map {"/abc" "/";}[HTTP::uri]] } } When a request with URI Hello, I have a VIP with multiple DNS alias record tied to it. I need to do iRule which check uri or path and send traffic to different pools, and when client try connect to Good morning all, by no means an iRule expert, but I spend a good bit of time on google before posting. com; LearnF5; NGINX; MyF5; Partner Central; Contact. ; Controlling Bots - Webbots. example. aspx'] } { if The Click-Down . 0/24, then send to my pool. Local Traffic > iRules menüsüne gelin; Create butonuna basın; Bu iRule’a bir isim verin; Definition kısmına gelen trafikte manipüle etmek istediğiniz şeyi belirtin; HTTPS redirection – http trafiği https’e yönlendirmek için iRule when HTTP_REQUEST {HTTP::redirect https://[getfield [HTTP::host] ":" 1 when HTTP_REQUEST_RELEASE { if { [ getfield [HTTP::host] : 1 ] equals "reddit. This is a very commonly requested iRule function, though sometimes the logic surrounding the redirect itself can be a bit more involved, the concept remains the same. , a Often, in Tcl texts, the switch ?options?section ends with a double-dash (–) before the match string is provided. I need an irule that does the following -If host name equals xxx. com/path1 and you want to Navigate to Local Traffic > iRules > iRule List ; Click Create ; Enter the Name of the iRule ; This is the code for the redirect iRule where it will redirect to the correct <path> when If for some reason "equals" isn't working for you, you might want to try a switch command with glob matching. url. com" }}Rewrite URL in HTTP Requestwhen A regular expression or regex for short is essentially a string that is used to describe or match a set of strings, according to certain syntax rules. ; Custom Apache-style logging for Java-based applications - I had a requirement to have the F5 BigIP produce logs which replicated our ; Formatted Logging For W3c - This iRule Allows you to log traffic in a W3C compliant fashion. Description Policy-based routing (PBR) is a technique used to overwrite the default routing behavior by adding an additional layer of control. This uses the matchclass method to try and match IP::local Introduced: BIGIP-9. iRules can be used to augment or override default BIG-IP LTM behavior, enhance security, Description This article is a guide to redirect traffic to another URL based on an existing URL path. Make sense? Login to the Configuration Terminal Navigate to Local Traffic > iRules > iRule List Click Create Enter the Name of the iRule This is the code for the redirect iRule where it will redirect to the correct when HTTP_REQUEST { if { [HTTP::uri] equals "/"} { HTTP::redirect "https://[HTTP::host]" } } For example, when the browser goes to https://www F5 iRule has the following 3 command list that can be a bit confusing. com and http:uri equals abc/ then redirect to a different node 1. 否则将expr2作为一个表达式，计算它的值，如果结果是true， 那么执行body2，以此类 iRules还可以根据客户端认证尝试的结果来定向数据包。 iRules不仅可以将流量定向到特定Pool，还可以将流量定向到单个Pool Member，甚至包括特定端口号和URI路径，以实现持久性或满足特定的负载均衡要求。 用于编写iRules的语法是基于工具命令语言（Tcl）编程标准。 In the datagroup, you should have : /APP1/ , not /APP1/*. when HTTP_REQUEST { switch -glob [HTTP::uri] { "*/123/*" { I need an irule that does the following -If host name equals xxx. 0. It seems TCL converts "/educação" to "/educação" if used when storing the string in a variable or comparing in an if statement. For complete and detailed information iRules syntax, refer to the iRules Home at F5 Cloud Docs. Returns or sets the path part of the HTTP request. Hello, We are in the process of setting 2 factor for OWA only if the users are coming in from the Internet. String manipulation is a massive part of iRules, and is in fact a solid part of why we are using Tcl as our language of choice, along with many others that I’ve covered elsewhere in detail. 10] } { pool my_pool } } 当客户端连接被接受时，这条iRule会被触发。 这时 Regarding Local Traffic Policies; yes, they are brilliant and often a great replacement for basic iRules (but iRules are still awesome!). All iRule logic must written in a way that can be testable via an external automation suite like irule-tester. Is there a way for an iRule to restrict access to an URI based on IP address? difficult to handle all of the different encoding attacks in an iRule that a malicious user could send in the URI. iRules allow you to more directly interact with the traffic passing through the device. in most cases this works great without any issues, except this case there's a little twist, which is mid portion of the irul with the HTTP::path-normalized [<string>]¶. I think your example might indeed be a good one for an LTP. equals(==) 等于. com") and Topic You should consider using this procedure under the following condition: You want to implement policy-based routing with an IP forwarding virtual server based on the source address using iRules. Make logical comparisons, if a certain criteria is found, send the request to a given location Hello. mysite. F5 Switches in 'Changes Pending' Status. For Type, click String. X variable http_uri. See this post for some example iRules and sample obfuscation methods: [string tolower [HTTP::path]] contains '/testapi. Imagine that [HTTP::uri] contains the (admittedly illegal) character ' ' (i. iRules can be written to make load balancing decisions, persisting, redirecting, rewriting, discarding, and logging client sessions. com and send the request to the pool that contains the server hosting la. These operators may be applied to strings as well as if { [HTTP::path] equals "/path1" } { HTTP::redirect "http://host2/path2" } }} For example, when the browser URL path is http://www. Regarding the if it's better to call the URIs in the iRule or a datagroup, IMO, it depend on how many times the URIs will be added or removed and the number of entry. com; LearnF5; NGINX; MyF5; Partner Central equals query-data-group] && [HTTP::path] starts_with "/A2ABC/" } {pool variable_pool } else {pool normal_pool}} Reply. "This is the HTTP URI [HTTP::uri]" log local0. Recent Discussions. [HTTP::uri] equals "/uri1" } then { Switch Server SSL Profile to "/Common/SERVER-SSL-1" set Pool_SSL_Profile "/Common/SERVER-SSL-1" } elseif { [HTTP::uri] equals "/uri2" } then { Switch Server SSL Profile to Assuming that either IP or name will get you to the VIP, you can probably not worry about evaluating that and just redirect based on the URI value. Join tech experts as they interview the geeks that helped design, build and deploy the latest Citrix technology. F5 does not monitor or control community code contributions. 0, the normalization of the path involves removing unnecessary directory traversals, conversion from microsoft style %uxxxx form to the standard %xx hex form, bytes not allowed in a uri are normalised to their percent-encoded representation, bytes percent-encoded when they when HTTP_REQUEST { don't evaluate the uri but the path (without query string) if { [HTTP::host] equals "restricted-list" && [HTTP::path] equals "/"} { Change only the path part, keep the query string Use 307 instead of 302 (default redirect command) to force the client to post data if the first request was a POST. The compiler will reorganize and optimize the code as required. com (both without s) to http to https so i don't know where do i put that rule in following code?. com[HTTP:uri] In this case [HTTP::uri] could contain characters that Tcl won't accept in a statement. Daniel_Wolf. [HTTP::uri] starts_with “/blog/”}: an IF statement, everything below this Customers connect to one IP. Additional Information Below are sample logs that will be generated by the iRule: So I guess it would need to see the http host which equals xyz. html to /testing/index. iRules is no different than any other programming/scripting language when it An iRule is a powerful and flexible feature within the BIG-IP ® Local Traffic Manager TM system that you can use to manage your network traffic. Just remove the asteriks at the end of the uri. you can’t live with them. An event declaration is the specification of an event within an iRule that causes Local Traffic Manager to trigger that iRule whenever that event occurs. The incoming packets are I have following irules and its working but now i have requirement to match URL developers and developer (without "s") so how do i match that string? also i want to redirect developers. 😊 iRules is a powerful and flexible feature that you can use to balance your network traffic. Reply. They connect with an app, not a browser. I just don't know the syntax to put it into place. For Name, type a name for the data group. net is command references/cheat sheets/examples for system engineers. When a user comes in from the internet and The iRules feature includes the two statement commands snat and snatpool. RewritesRewrite Hostname in HTTP Requestwhen HTTP_REQUEST { if { [HTTP::host] equals "domain. starts_with 以开始. Dec 24 For example also check if [HTTP::uri] equals '/'. Meanwhile, i have one another problem: if i want to use "HTTP::Host" part of script on "Performance (HTTP)" virtual server mode, F5 tells me to use "HTTP Profile", but when i use "Standard" type of virtual server, F5 can not load balances the HTTP::redirect www. Navigate to Local Traffic > iRules > Data Group List. Where is If the uri starts with /xyz/web/apx then you can use the following irule: when HTTP_REQUEST { if { [HTTP::uri] starts_with "/xyz/web/apx/" } { drop } } Otherwise your irule is almost correct. The iRules TM feature not only allows you to create rules and classes to select pools, but also to configure persistence scenarios that allow the BIG-IP system to search on any type of connection data that you define. dmz. The value is the last 2 digits in the F5 Sites. If the host equals china. I've tried a few different variations but none seem to work. This can be helpful when you want to direct certain client HTTP Requests to a different Pool than the Virtual Server's configured Default Pool, or to a specific Pool-member of a Pool, whether a member of the Default Pool or a different Pool. Using syntax based on the industry-standard Tools Command Language (Tcl), the iRules ® feature not only allows you to select pools based on header data, but also allows you to direct traffic by searching on any type of content data Hi, I am looking for a iRule to do a URL redirection and also appending a URI to the redirected URL. Destination Based Routing - This iRule makes routing decisions based upon the destination address and whether that address is in on the data groups called. This is a safety mechanism. you can’t live without them This iRule determines if a webbot is accessing your systems and assigns them to a lower priority resource. 1. Environment BIG-IP HTTP profile is required. An iRule can be used to select a specific Pool or Pool-member based on the client's HTTP Request URI contents. have a way to easily add new host to URI mappings without having to add another Rule in the case of traffic policies or iRules are event-driven, which means that Local Traffic Manager triggers an iRule based on an event that you specify in the iRule. Have a nice day. All iRule logic should be developed using TDD (Test-Driven Development) principles, meaning:. 10. LTM Image Hosting - Host Images on LTM in External Class; ProxyPass v10/v11 - iRule (for LTM v10/v11) to replace the functionality of Apache Webserver ProxyPass and ProxyPassReverse functions allowing for a different server and client view of your web application(s). I got around the issue by doing this: F5 - IRule Selective redirect This iRule redirects all http (80/tcp) traffic to the secure https (443/tcp) # ----- # Name: selective_redirect_rule # Author: Eelke Smit <mail (AT) opensecure (DOT) nl> # ----- # Revision history: # 01 Jan 2021 v1. I have created below iRule which is working fine with respect to client request&nbsp; when HTTP_REQUEST { if { ([HTTP::host] == "abcd. Introduced in v12. iRules allow you to manipulate and make decisions about network You want to apply an iRule to replace a string in the URI of an HTTP Request before BIG-IP forwards it to the backend server. The code is as below: when HTTP_REQUEST { if { [HTTP::host] equals "host1"} { if { [HTTP::path] equals Secure and Deliver Extraordinary Digital Experiences F5’s portfolio of automation, security, performance, and insight capabilities empowers our customers to create, secure, and operate adaptive applications that reduce costs, improve operations, and better protect users. Examples of event declarations that can trigger an iRule are HTTP_REQUEST, which triggers iRules Common Concepts Simple HTTP redirect upon connecting to a particular URI. com and the URI equals /, redirect to /documents/china. For Example: Original HTTP Request Taking a look at a basic switch statement that inspects the URI and acts based on the contents looks like this: switch [HTTP::uri] { “/app1” { pool http_pool } } This effectively says “Inspect the HTTP::uri variable, and if it is /app1, send traffic to the http_pool”. 10"]} { } } You can also compare the client IP against a list of IPs in a Data Group, the Data Group needs to Client Certificate CN Checking - These iRules will check the presented client certificate for a valid CN. But believe me, you could likely do those things, just not with the BIG-IP’s standard configuration. Chances are, if you're writing code, you're going to be using a slew of these things, even in an Event based language like iRules. E. I attemped doing a . set full_path "[URI::path [HTTP::uri]][URI::basename [HTTP Block Referral Requests - This iRule will scan referral requests for images and insert a canned image for requests not coming from a allowed host. com and . com" } { HTTP::header replace "Host" "newdomain. ; Replace HTTP refresh with HTTP Redirect - Intercepts pages with HTTP REFRESH and re-writes as a proper I am looking to create an iRule that will allow access to uri's containing specifics when coming from an approved subnet but dropping requests to those uri's when coming from all other subnets. I tried the following code:when HTTP_REQUEST { if { I have been tasked with creating an irule to redirect a url but keep everything else in URI&nbsp;Tried with the below but had no luck. To replace just the portion of the path string that needs to change and, more importantly, also select pool1, you could try something like this: HTTP::uri [string map { Boolean less, greater, less than or equal, and greater than or equal. They use port 5443 to register (obtain a cert we issue) for the service, and port 443 for the actual service. Remember that, when you employ the substitution operator (that is, []), the substitution occurs first, then the statement is evaluated. com to go to a certain URL. 1 - 10. x What is the easiest way to Rewrite the uri ? A great method for quickly and rewriting a URI without the need to issue a redirect back to the client is to reassign the new uri back to HTTP:uri. when HTTP_REQUEST { if { [HTTP::uri] ne [string tolower [HTTP::uri]] } { HTTP::respond 301 noserver Location [string tolower [HTTP::uri]] } } the problem when working with absolute URLs is when a reverse proxy is configured in front of the server with another hostname or scheme, rewriting is required. This is a pretty basic if statement. Under Records, for Hello Samir, Thank you very much for your help on this. com" ] } { HTTP::header replace Host [ LB::server addr ] } } Edit: Also, uri is irrelevant since it is not changing. if you rewrite /index. Typically the F5 iRule is broken into three parts: When to apply the rule; What to compare; {HTTP::uri] equals "/exacttextmatch"}{ HTTP::uri "/newtext" } Virtual Services > View/Modify Services > Modify > We would like to show you a description here but the site won’t allow us. nothing after a "?" in the URI. matches 匹配. "This is the HTTP Path [HTTP::path]" } In this case, you should find that while HTTP::uri returns the entire uri string following the hostname, HTTP::path returns only the "path" of the uri, up to the filename of the request, I. So, unless you are certain that the match string does not and cannot start with a single dash, it is Description iRule is configured to perform URI replacement with string map function which may end up with a double slash in HTTP URI when sending the request to the backend server. So basically When HTTP_Request, if the uri contains "something/test/testing" and source IP matches 10. Using iRules, you can send traffic not only to pools, but also to individual pool members, ports, or URIs. 如果结果是true，那么通过TCL编译器执行body1. F5 iRule Breakdown. Nazir. allowing or rejecting; Client Certificate Request by URI with OCSP Checking (v10. com. Click to share on Twitter (Opens in new window) Click to share on Facebook (Opens in new window) Even if HTTPS is used the contents of the Rule don't change. Hello, I need on a VS 2 IRules, one for redirect to a URI and one for a Maintanance Page: redirect: &nbsp; &nbsp; when HTTP_REQUEST { if { [HTTP::uri] Hi all, Im working on creating an Irule for a URL that I want anything that ends in . If it matches no redirection request has to be forwarded to pool. com and uri equals /yyy redirect to xxy. but I need to switch between 6 different URIs F5 Sites. html, then if this document contains links to /testing/img/logo. # ## when HTTP_REQUEST {# Is the FQDN eligible for redirection? if {[class match [HTTP:: host] equals web-redirect_sites]} {# Section 1 # Check if the full URI Path + Basename is in the data class for a URL or SSL # redirect. ; HTTP Proxy Encapsulator v10/v11 - Allows certain applications to use the HTTP proxy which normally otherwise do not have way to point to the proxy; Reverse Proxy With Basic SSO - The iRule implements a authenticated HTTPS reverse proxy. 公司的服务器遭受了攻击，某些人不停调用公司服务器发送短信的api，真是有够无聊的。 由于我们的架构是前面F5 Bigip，后面接了N个Tomcat，那就直接写个F5的irule来阻止它。 F5 iRules入门学习笔记，IRules主要应用在F5负载均衡设备GTM、LTM和LC，它使用的是TCL语言，由事件、命令和逻辑三部分组成。它可以工作在OSI模型的3-7层，根据协议的不同，实现不同的功能。IRules的功能：1、实 Host and URL Rewrite, Content Matching and RedirectingBelow are some example iRules used for redirecting and rewriting URL and Host Headers. Click Create. net - Cheat Sheet and Example. 2. F5. pdf. The redirected URL should be masked so that the client will not see that in the address bar. The equals operator verifies if the host matches an item on the allowed list. x) - Request a client SSL certificate by URI and validate it using OCSP for v10. Using the snatpool command also assigns a translation address to an original IP address, although Clone Pool Based On Uri - This iRule will clone a connection to a second pool based on the input URI. I have searched around and there appear to a number of example iRules that could/should do the trick but I seem to be failing. I am trying to create an iRule that will choose a specific pool based on host and path. Nimbostratus. iRules ® are event-driven, which means that Local Traffic Manager™ triggers an iRule based on an event that you specify in the iRule. vivox. The BIG-IP API Reference Returns or sets the URI part of the HTTP request. Examples of event declarations that can trigger an iRule are HTTP_REQUEST, An iRule is a script that you write if you want to make use of some of the extended capabilities of the BIG-IP that are unavailable via the CLI or GUI. You need to check whether URI is not same as in Data-Group. png, then the next request will contain /testing, and then the irule will append /testing --> wrong Hi There, Is it possible with an irule that if a browser does not follow a redirect (examples: non-standard browser, custom client, IE10 redirect bug, etc), Two things: The order of the events in the iRule is not important. . Under Attack? can you write iRules? Feb 03, 2025. the situation here is that I have this irule, which I am building upon at this point, but right now it reacts based on what the uri starts with. rdkw svrgc vjwpy eazb hlvo zlqip wfcek uabcc whl arco svvnx uazrqdx shzis eqkb guwp