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We do have a problem; we setup a used Juniper SRX3400 Cluster hoping to move our configuration from old SRX3400 Cluster to new one (for some reason), however everything works but we cannot make HTTPS traffic with "some" websites.

  • Google, Amazon with https works but we cannot make traffic with StackExchange
  • When we make traffic on flow sessions I can seee Junos:SSL and Junos:Amazin however when visiting StackExchange it says: Junos:SSL/INCONCLUSIVE
  • Can make ssh connection to server behind firewall
  • Can make http connection to server behind firewall
  • Cannot make https connection in both directions
  • Can ping firewall
  • Can ping server behind firewall

We are planning to work on long term with the network administrator as we have lots of issues like this. This task is basicly a test task that.

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  • Please add more information about your environment. Is "SSL Deep Inspection" being done, in other words: is the SRX is generating/faking certificates (signed by its on-device PKI/CA) for external servers, and the clients see this faked certificate? If yes, which (local) CA certificate is the SRX it using to sign/fake these server certificates? Are there any whitelists or exemption rules for SSL Deep Inspection, like for amazon or google, but not for other sites? The SRX's local CA Certificate (or it's parent), has it been imported to the client's trust stores? – Marc 'netztier' Luethi Aug 6 '20 at 6:42
  • Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you can post and accept your own answer. – Ron Maupin Dec 17 '20 at 20:25
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Juniper has a good Tech Library page for troubleshooting SSL proxy issues. It's a complex subject -- especially if you're not very familiar with PKI concepts -- and they've done a nice job of aggregating some common commands into a cheat-sheet. There's also information on related logging.

https://www.juniper.net/documentation/en_US/junos/topics/task/troubleshooting/security-ssl-proxy-troubleshooting.html#id-ssl-proxy-counters-errors

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