0
votes
0answers
90 views

Is it possible to persist a session after a server as been removed from a load balanced server pool on an F5

We have a server farm hosted in a co-location data center, because of uptime SLA's in our contract we have zero access to the F5 Load Balancer. I am curious if the following is possible to achieve. ...
7
votes
1answer
647 views

F5 Load Balancer Resends Request On Timeout

Let me preface this by saying I am not a systems administrator, I'm a programmer. Recently, our systems administrators installed F5 load balancers. Since then, I've noticed that any time a request ...
0
votes
2answers
185 views

Big IP F5 outbound HTTP issues

We've tried upgrading from 9.x to 10.2 on our F5 Big IP 3400 and everything went over fine apart from one thing. We're unable to establish any outbound HTTP (80) connections from any servers that are ...
1
vote
1answer
1k views

F5 BIG_IP persistence iRules applied but not affecting selected member

I have a virtual server. I have 2 iRules (see below) assigned to it as resources. From the server log it looks like that the rules are running and they select the correct member from the pool after ...
1
vote
1answer
344 views

F5 BigIP upgrade from 9.x to 10.x

Having a few difficulties upgrading a Big IP 3400 from 9.4.8 to any version 10.x image. The following are the versions I've tried: 10.1.0.3341.0 10.2.2.763.3 10.2.3.112.0 10.2.4.577.0 To upgrade ...
0
votes
1answer
245 views

Predictive vs Least Connection Load Balancing Techniques

I have a windows based desktop application that communicates via TCP to the application servers. (windows 2003). No sticky sessions between client calls. We have exactly 2 servers to load balance and ...
4
votes
1answer
533 views

HAProxy: session stickiness triggered by response header possible?

I'm investigating HAProxy as a possible replacement for F5. F5 is capable of persisting a session based on a response header value: when HTTP_RESPONSE { set session [HTTP::header X-Session] if ...
1
vote
1answer
1k views

301 redirect Rule For Load Balance F5 BigIp

I have a load balancer F5 Big ip for my website. Currently, I am having 302 redirect in place; however, I wanted to apply 301 but dont know how. For example: My website (abc.com) when typed 302 ...
0
votes
1answer
761 views

BIG IP - HTTPS Health Monitor setup

I have a Web site that we have setup a health monitoring pages so we can take our servers in and out of the Big-IP as we see fit. Now we have just moved onto Big-IP and the issue I have hit is that ...
1
vote
2answers
3k views

Possible to redirect from HTTPS to HTTP behind load-balancer?

I have a basic ASP.NET application that sits behind an F5 load-balancer. Incoming SSL requests (over HTTPS) terminate at the load-balancer and all internal communication between the load-balancer and ...
2
votes
1answer
732 views

What's the best way to detect whether an incoming request is secure?

Is there a preferred method of detecting HTTP vs. HTTPS on an incoming request to an F5 load-balancer? We are attempting to detect secure vs. non-secure with an iRule and pass a corresponding header ...
0
votes
3answers
2k views

does bigIP support sticky session

Does BIG IP support sticky sessions? I have 2 apache's behind a Big IP box at my partner end. Need to know whether Big IP supports sticky sessions. My apache has the sticky session enabled. All ...
3
votes
2answers
4k views

Load balancing with F5 Big-IP using only a single interface

I've been tasked with configuring our F5 Big-IP LTM. It's running 9.4.8. I've read through the docs a bit and I'm a little confused. It specifies that there are two default VLANs: internal and ...
5
votes
1answer
2k views

How can I disable and re-enable machines in a BIG-IP pool via ssh?

I can't seem to find any simple examples of disabling and re-enabling machines using the ssh interface. Can someone give me a brief example or a pointer to decent documentation?
0
votes
2answers
559 views

BigIP load balanced Rails 3 / Apache app not handling selective SSL correctly?

So here's the setup. I've got a Rails 3 application deployed to two servers, both running Apache2, both with identical VirtualHost configs, both operating on Passenger. There are a few routes in the ...
1
vote
1answer
524 views

How can I version controll my F5 Big-IP LTM load balancer configs while allowing changes via iControl or the web interface

Currently we use F5 Big-IP LTMs (IP load balancers) in our environment for load balancing. We have an existing process for making changes to LTM configs and pushing them out. I'm trying to figure out ...
0
votes
1answer
396 views

F5 LTM 10.2 and MSSQL 08R2

We have a mirrored SQL server setup with a pair of LTM's holding the mirror VIP. We're trying to setup a health monitor that runs a query against both servers in the mirror and directs traffic to the ...
0
votes
2answers
204 views

Any load balancers using Chrome's JavaScript engine? [closed]

F5 has TCL which is horrific to program. A10 copied. Are there any programmable load balancers out there that are looking forward? Node.js seems to have blazed the trail and proven it works and ...
1
vote
1answer
957 views

F5/BigIP rule to redirect affinity-bound users from INACTIVE pool node to other ACTIVE node

We have several server nodes set up for the end users of our system and because we don't use any kind of session replication in the app servers, F5 maintains affinity for users with the ACTIVE node ...
3
votes
1answer
1k views

NTLM, Kerberos and F5 switch issues

I'm supporting an IIS based application that is scaled out into web and application servers. Both web and applications run behind IIS. The application is NTLM capable when IIS is configured to ...
2
votes
1answer
904 views

Proxy SSL from load balancer

A server admin who is setting up a load balancer asked me if I wanted to: Host SSL certs directly on web servers or, Proxy SSL from the load balancer I've only done the former implementation. Can ...
2
votes
4answers
2k views

Testing strategies for f5 bigip

I am a developer who is used to being able to test and debug code. Occasionally I have to make changes to our load balancer configuration. As far as I can see, if I mess this up it could stop the ...
1
vote
2answers
601 views

What are the licensing requirements for the Big IP F5 Load balancer?

I've seen older f5's on ebay for about $500 for a pair. I've heard they work great for load balancing, but I'm trying to figure out what the ongoing costs for them are. Does anyone know what kind of ...
8
votes
3answers
21k views

What is the downside to sticky sessions with load balancers?

we have a web farm of IIS7 machines. Works great. In front of them is an F5 Big-IP hardware load balancer. Also working fine :) Now, currently we're using an ASP.NET State Service to handle our ...
0
votes
1answer
560 views

Failure handling in Load balancing

Suppose I have two Tomcat instances load balanced using BIGIP or other similar solution. If once Tomcat instance goes down while it was serving few request, what happens to those requests? User gets ...
1
vote
4answers
259 views

Long HTTP Get and Instant Response

We have an ASP.Net 3.5 Application on IIS7. On our preview server, it runs with almost instant gets and responses (~1 second from get to the page displaying). We have a production environment with 5 ...