Forum Discussion
AltostratusDisabling Specific Weak Cipher Suites
This would the server side SSL profile then. Usually be default a generic SSL profile is used on server side, but you can create a specific one for this particular application.
Now, there is one more concern. You can disable the ciphers on the server and don't have to on the F5. Why? Both the F5 and server need to both support and agree upon a cipher version. So if the server is not presenting it as available in the initial handshake, the F5 simply will not use/select it. That said... have you asked the server team what ciphers are still supported? You want to make sure the F5 supports what the server is requesting now... newer versions of BIG-IP support newer ciphers, so maybe a newer software BIGIP version may be needed to support what the servers now advertise.
Altostratuswhisperer I'm looking to disable the ciphers in the list above on the server side. The application no longer supports them and F5 is unable to communicate with the app server when the ciphers are removed from the server. Is there an SSL profile specific to the server side? Sorry, I don't have access to F5 and trying to walk our client through this. I think they were trying to edit the SSL profile for the domain at Local Traffic > Profiles > SSL > Client.
MVPThis would the server side SSL profile then. Usually be default a generic SSL profile is used on server side, but you can create a specific one for this particular application.
Now, there is one more concern. You can disable the ciphers on the server and don't have to on the F5. Why? Both the F5 and server need to both support and agree upon a cipher version. So if the server is not presenting it as available in the initial handshake, the F5 simply will not use/select it. That said... have you asked the server team what ciphers are still supported? You want to make sure the F5 supports what the server is requesting now... newer versions of BIG-IP support newer ciphers, so maybe a newer software BIGIP version may be needed to support what the servers now advertise.
