I am very new for F5-LTM configuration.Any help related to below requirement will be vary much appreciated.
I have my application on Weblogic-11g server running on managed server at port number : 8001.
Now as my user count has increased i have created one more managed server at port number : 9001
Previously all my request were coming on http://ip_address:8001/login.html
now still i want all request should come from same but they redirect to both http://ip_address:8001/login.html and http://ip_address:9001/login.html
Note : i would also like to inform that in my application i have many other servlet also running so i want request forwarding based on http://ip_address:port_number/servlet
Any body who know How i can achieve my above request forwarding configuration in F5-LTM.
Thanks Again.
I have my application on Weblogic-11g server running on managed server
at port number : 8001. Now as my user count has increased i have
created one more managed server at port number : 9001
I don't think you need a different port and redirection.
You can still run the app on your second server on port 8001. Then you can add both the server under one virtual pool which will be under a virtual IP. Then the user can go to the app by using http://virtualIP:8001/login.html.
When a request is received by the virtual IP it can load balance the request between the two servers which are running the app on the same port 8001.
This is a good documentation in case are interested :
https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-basics-11-6-0.html
Related
trying a quick experiment with ACI to see if I can use it to host iperf3 for some on demand network performance testing. The docker image is https://hub.docker.com/r/netgio/iperf3server/
I can get the container up and running but when I try to connect to it the iperf client gives me the error "iperf3: error - control socket has closed unexpectedly"
I was hoping this would be a simple, single port, single instance use case. are there any specifics related to socket connectivity into ACI instances that would affect this?
EDIT:
iPerf3 defaults to TCP port 5201 so to ensure ACI port mappings are working as expected I created an nginx docker image configured to listen on port 5201 and deployed to ACI. This worked as expected (I could access the default home page at http://:5201). So the issue seems to be specific to whatever iPerf3 is doing with its sockets.
Note the error happens almost immediately at launch of the client iperf3 process.
Azure is experiencing an outage right now. You're probably being impacted.
http://downdetector.com/status/windows-azure
I am working on an angular app using the angular cli to set things up. Running the ng serve command spawns a server at this address <my_ec2_host_name>:4200. When I try to access the page on the browser it doesn't work (connection timed out error). I believe this is because of security reasons so I added the following rule to my security groups for the ec2 instance:
Port 4200 should now be accessible but I still can't get the page to load. Can someone think of how to get this to work?
Start angular with below command.
ng serve --host=0.0.0.0 --disable-host-check
it will disable host check and allow to access with IP
You can set up the host option like this:
ng serve -host 0.0.0.0
The steps you are doing are correct for opening a port via Security Groups in the EC2 console. Make sure you are modifying the correct security group, and make sure that your changes have been saved.
Your container may have additional firewalls in place, so you will want to check the OS documentation. For Example, RHEL uses iptables as a further security measure: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security_Guide/sect-Security_Guide-IPTables.html.
That looks correct. Are you sure that your server is running and listening for connections?
You should ssh to that server and verify that the page can be loaded locally. Eg:
curl http://<YOUR HOST IP ADDRESS>:4200
eg: curl http://54.164.10.123:4200
You should be careful to use the public ip address (eg: IPv4 Public IP when you're in the EC2 console). I've run into problems in the past where I've got a server listening on one IP address (often localhost) and not the public ip address.
Also maybe a problem: Is your host inside a VPC of some sort?
I have installed my web application on 2 Windows based VMs of GCE.My application runs on 8080 port.
Steps followed for Netwrok Load Balancer :
1) I created health checks for 8080 port.
2) Added both my VMs and helathchecks to target pool.
3) In forwarding rule I created a rule for 8080 port for that particular Target Pool.
After this go to Target Pools and check the health of the VMs
Here a red symbol is shown against both the instances and message shown as "instance is unhealthy for ".
I have added port 8080 in Firewall rules.
If any one can help, if I am doing anything wrong or there is some other way to setup the Load Balancer.
I believe this issue is not related to the fact that you are listening in port 8080. Health check will pass as long as your instances are able to communicate with the Metaserver (169.254.169.254 [1]) and response with a valid HTTP page.
You must be sure you have allowed communication on port 8080 on the Google Firewall and on your Windows firewall instance [2]. As a debugging you can try to ping the Metaserver and capturing IP packages to confirm if there is a 3 way handshake between the Metaserver and your GCE instance. Additionally you might want to try to do the setup with the same instances on port 80 to confirm if it is actually related to the port.
[1] https://cloud.google.com/compute/docs/metadata
[2] https://cloud.google.com/compute/docs/networking
We have a makeshift SOAP client written in C# connecting to a CXF service on a desktop from a windows mobile device. When this device is connected via ActiveSync, it creates a virtual adapter for the RNDIS connection. This virtual adapter assigns a gateway IP to the host, 169.254.2.2.
When we attempt to go through the connection with the hostname or the host's IP set as the address in the C# client, everything works perfectly. When we however set the IP to be the RNDIS gateway (169.254.2.2), the connection is periodically lost on the server side. The CXF service keeps trying to connect, and eventually succeeds, but this results in a massive slowdown of the connection. There are no errors reported in our logs on the mobile C# side, only on the CXF server.
Does anyone have any clues as to why this is happening? We need to assert that 169.254.2.2 cannot possibly be used as a valid endpoint before we rule it out.
Oh, and in case it helps, the C# client is granted the IP 169.254.2.1 through DHCP after the ActiveSync connection.
The first issue that comes to my head, especially once I saw that you are using DCHP, is that the lease time on the IP from the DHCP server is expiring and the CXF server is having to wait for the DCHP server to issue a new lease.
Try lengthening the DCHP lease if you know that the IP won't be changing and use a static IP if you are able. That will at least remove that point of failure.
I found out the cause of this, but I feel bad for answering because I doubt there was any way someone else could have guessed that this was the problem:
On our CXF server, we have a call to InetAddress.getHostName() which basically does a reverse DNS lookup on the request sent from the C# client.
When using the ActiveSync IP address, there was no entry in the DNS for 169.254.2.1 (of course), so the java class would hang until the method timed out (which took about 20 seconds before it would write a response to the C# client). At 20 seconds per request, this resulted in the massive slowdown and lost connection errors.
We fixed this by moving the call to an executor thread that force-finished after half a second. Because it was in another thread, the slowdown became nonexistent. Glad to have that over with!
I need one server to receive ip requests from clients(there are not in the same intranet), and I can
route all the response packets to a special gateway server, and then I send the response packages to
clients after some processing. it is like VPN, but I want to do some development based one
opensource project, so i can control it myself.
any suggestion? thanks!
There is OpenVPN which is as the name already suggests open source.
You could set up the server on the local one as a kind of proxy (or reverse-proxy depending on your viewpoint) and have the clients connect to it.
It depends what protocol you're using, maybe it has explicit proxy capability or you can get an existing proxy program, or just proxy it using a simple socket forwarder program.