It only takes a minute to sign up. When a unsecure request comes in, my app is able to use Response. Redirect from my application. Could the F5 be preventing the redirect for ever reaching the client? What is "Rewrite Redirects" set to? Since you're the developer of the app, you probably want None. Remember to make a new HTTP profile for your app rather than edit the default one. This option is designed to handle redirects from applications that aren't really SSL Offload aware.
There's a good article about this option on DevCentral. On a related note, why are you redirecting back to HTTP? What is your traffic load? I'm guessing you're unlikely to be establishing over new SSL connections per second.
Not sure if there is an F5 issue here but you may want to look into using the IIS Rewrite module instead of the standard Response Has a lot more options and capabilities and might even be able to handle the problem you're having. Sign up to join this community. The best answers are voted up and rise to the top.
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Viewed 12k times. I have a basic ASP. NET application that sits behind an F5 load-balancer. Is there any special configuration necessary to let this happen? Derek Hunziker Derek Hunziker 1 1 gold badge 1 1 silver badge 8 8 bronze badges. Active Oldest Votes.
Also note that if asp. This is issue to be fixed in F5 configuration. Brent Pabst Brent Pabst 6, 2 2 gold badges 20 20 silver badges 35 35 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Programming tutorials can be a real drag.
Featured on Meta. Community and Moderator guidelines for escalating issues via new response….The F5 is set to redirect to the primary Tableau server. However when browsing to the external URL something does not work and the web page cannot display just a generic "cannot display web page" error. When browsing to the Tableau Server cluster on the corporate network not through the external URL the cluster can be seen as operational with all processes working.
We are running a 3-node cluster - 1 primary server with 2 worker servers.
Redirecting DNS Queries Using a CNAME Record
Any ideas on how this can be fixed? Thanks Mike. I have the same question Show 0 Likes 0. This content has been marked as final. Show 4 replies. John, First, glad to have your expertise here in the Server Admin forum!
Go to original post. Retrieving dataLet's face it: there aren't many people out there who have extensive experience with Tcl. Since iRules is a Tcl dialect, that means that finding a solid iRules solution can be challenging, even for otherwise experienced coders. And many times, those who architect, configure, troubleshoot and manage BIG-IPs don't normally code as part of their day job.S3 url redirection - AWS - S3 - CloudFront
For both groups, most problems can be solved by finding iRules code that tackles a problem similar to one they face, modifying it just a bit to suit the specific need. This series hopes to provide that sort of code: "recipes" that capture patterns used by BIG-IP practitioners to solve common problems.
Each article is a single recipe. The article begins by explaining a problem you might be trying to solve. It then presents an iRule that can solve it. After that, it provides an analysis of the iRule. Finally, it provides a more detailed background section to elaborate on how the supporting protocols work and any nuances regarding the problem or solution. In some cases, there is a non-iRules method for solving a problem.
When this rule is applied to a Local Traffic Virtual Server with the http profile applied, then any request for www. This is a simple iRule, and is intended to solve a simple problem. The set of profiles applied to a Virtual Server determines the events that will fire. HTTP::host retrieves the value of the Host header if one isn't present, then it is the empty stringwhile HTTP::path returns the path part of the Request Target see below for a bit more detail on this.
The string tolower is needed for the Host header, because hostnames are case-indifferent. That is, www. By normalizing case, we can reliably compare its value. This can get a bit messy because many web servers simply pass the path to the underlying filesystem, which may or may not be case-sensitive.
Most of the time, what you mean is a Permanent Redirect, which tells the user-agent not to try the original URL again.
Perhaps it would have been better if HTTP::redirect usedor at least allowed you to specify which Response Code you wished, but alas, it does neither. I believe it can be quite useful, but if all you needed was the recipe, feel free to skip this section. HTTP transactions are stateless, and always consist of exactly two messages: a Request message followed by a Response message. An HTTP message consists of a start-line, zero or more headers, and a body.
For some request message types, the body is empty. Notice that the fragment section1 is not transmitted. A fragment has meaning only to the user-agent, and is a hint about where to center a rendered document. Describing this feature is -- as they say -- outside the scope of this article, but in brief: it's a really cool way to do common HTTP transforms, including redirects.
It has the advantage of not being code, and it is part of the built-in feature set. Thank you for the response! I am not familiar with using a LTP. I will research further. Thank you! Skip to Navigation Skip to Main Content. Login Sign up.An open redirect is a vulnerability where the server tries to redirect the user to a target domain that is not defined in the security policy.
Spammers use open redirects in phishing attacks to get users to visit malicious sites without knowing it. Often, the request includes a parameter, which contains a URL that redirects a user to an external web application without any validation. You can configure redirection protection and the domains where users are permitted to be redirected on a response header in an existing security policy. By default, redirection protection is enabled in ASM with a pure wildcard configured as an allowed domain effectively providing no enforcement.
You can adjust the settings so that the security policy allows redirect to specific domains, and protects against unvalidated redirects.
You can adjust the explicit entities learning settings for redirection domains. Explicit learning settings specify when Real Traffic Policy Builder adds, or suggests you add, explicit redirection domains to the security policy.
The security policy now learns new redirection domains according to the explicit learning setting you specified. When you configure redirection protection, Application Security Manager ASM protects users from being redirected to a web site that is not listed in the allowed redirection domains. If the pure wildcard is listed as an allowed domain, ASM allows redirection to all domains.
If you want to check whether users are redirected by the application, you can leave the wildcard as an allowed domain and let the system learn the redirect domains. ASM sets the explicit entities learning for redirection domains in the general policy building settings. The security policy learns, by default, all domains Add All Entities where users are redirected.
If you are using automatic policy building, the system adds to the security policy the redirect domains that match the pure wildcard, and lists how many it added, in the policy elements learned table on the Status screen.
When the security policy is stable, the Policy Builder removes the wildcard redirect domain from the security policy, and allows users to be redirected only to the redirect domains that were added to the policy. If you are building the security policy manually, the system learns and suggests that you add the redirect domains that it detects.
You can determine whether there are redirection domains with learning suggestions by looking at the Enforcement Readiness Summary. After you add the legitimate redirect domains to the security policy, you can consider removing the wildcard redirect domain from the security policy.
As a result, the policy on redirects becomes more strictly enforced. My Support. Manual Chapter : Mitigating Open Redirects. This type of request may result in a response containing a Location header that points to a new target. This feature does not affect internal redirection, which is always allowed.NetScaler Action Analytics. Configure a selector. Configure a stream identifier. View statistics. Group records on attribute values. Clear stream session. Configure policy for optimizing traffic.
How to limit bandwidth consumption for user or client device. AppExpert Applications and Templates. How AppExpert application works. Get started with AppExpert.
Download an application template. Import an application template. Verify and test application configuration. Customize AppExpert Configuration. Configure public endpoints. Configure services and service groups for an application unit. Create application units. Configure application unit rules. Configure policies for application units. Configure application units. Configure public endpoints for an application. Specify the order of evaluation of application units.
Configure persistency groups for application units. View AppExpert applications and configure entities by using application visualizer. Configure user authentication. Monitor NetScaler statistics. Delete an AppExpert application. Configure application authentication, authorization, and auditing. Set up a custom NetScaler application.
Creating and Managing Template Files. Creating Variables in Application Templates. Uploading and Downloading Template Files. Deleting a Template File. NetScaler Gateway Applications.I know this is probably really simple, but sometimes networking just gets me.
At work, we now have an internal portal. What is the way to accomplish this? Which would help in your case, because you could have them type "portal. Then, the next time they type it into the address bar, it'll just come up via autocomplete. It is not in my power to change this decision. If it can't be done without modifying the hosts file on all the machine, that's fine and the URL can stand as is, I just need to know.
It's not a networking question. Networking is what happens in between the user's computer and the server. Configuration of the server is dependent on what server software you are using.
If it is apache web server or nginx or similaryou should probably ask in the linux forum as apache is most commonly used on linux apache is also often run on windows and uses the same config. If it is IIS then in the windows forum probably the windows tech mojo one. Then you can add a redirect for the old URL with the full path so that it redirects back to the main hostname. As for specifically how to do that in whatever server software you are using, that is best addressed in the forum most appropriate to the software and operating system in question.
Paladin wrote: It's not a networking question. Paladin, I disagree. The only way I can think of to do that is via hosts file. Any domain joined machine will use the domain name as the DNS search base, so adding an entry for test. So you're saying make the alias portal point to server.
FQDNs always, everywhere, if possible. This is trivial to do on most loadbalancers. My favorite is F5- you can get a virtual edition to do this. You want to actually write in part of the URI. If you are messing with relative URL components or parts of the http headers or request, you are doing rewrite.
Gents: we're still dealing with him wanting to use an Alias.Luckily, the team was alerted and quickly got the word out to employees. But, as for blocking URL shortened links via email? Unfortunately, since URL shortening services were put in place, scammers and crooks have been using them to conceal counterfeit websites. All technology is a two-edged sword, useful for both good and evil.
There are many URL shortening services like bit. Shortened URLs are especially handy when using Twitter, which limits tweets to characters, because some URLs would consume the entire message. The text of the email message is often designed to fool the user into thinking the link is trustworthy since they see so many links come in this way.
A common trick is to imitate an email from the IT department to get users to click on a link to change their password, which leads to a site that steals their password. If you are already a member simply click the link below to Accept the Cash Give-Away. To Process: Click link below or copy and paste into browser window.
Another way to create a misleading URL is to use homographs, which leverage Punycode2 encoding to falsify the name. The last common URL obfuscation technique involves bouncing off a web application vulnerability in a legitimate site.
Many sites provide the capability to do URL redirects or forwards. The investment website itself is using web application tools to perform the redirect, which often can look like:. A phisher could then hijack this mechanism to redirect users to a fake site.
However, an untrained user might only notice the start of the URL, which shows the real site which is redirecting. Furthermore, the phisher could combine techniques, adding URL shortening to further mask the final destination, like so:. This particular problem used to part of the OWASP Top 10 web vulnerabilities called Unvalidated Redirects and Forwards 3 and is often tested for as part of a web application vulnerability test.
As always, making your users aware of these attack methods can go a long way towards helping them spot phishes and scams. Having a quick and easy way for users to report these kinds of attacks coupled with a rapid response gives you the ability to block and warn everyone else on specific attacks.
With over 20 years of experience in Internet security, he has worked closely with federal law enforcement in cyber-crime investigations. He was directly involved in several major intrusion cases, including the FBI undercover Flyhook operation and the NW Hospital botnet prosecution.
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