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Greegan_117032's avatar
Greegan_117032
Icon for Nimbostratus rankNimbostratus
Aug 21, 2013

How to troubleshoot SSL server profile?

Hi

 

I'm trying to work out where my connection is going wrong. I have setup a VIP with both a client and server SSL profile so the nodes receive traffic on 443. What commands should I use from the F5 to troubleshoot the cert between the F5 and the nodes/servers?

 

Thanks

 

security
ssl profile
TMSH

3 Replies

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  • Approxee's avatar
    Approxee
    Icon for Nimbostratus rankNimbostratus
    Aug 21, 2013
    Where are you receiving the error, and what does it say - Is it a browser error ? - Is it a self cert or a Public CA ? Is there an intermediate Cert between the root CA and your certificate ?
  • Approxee's avatar
    Approxee
    Icon for Nimbostratus rankNimbostratus
    Aug 21, 2013
    You could use TCPdump, and then use SSLdump to see where it is failing - I think also you can use SSLdump directly if it is not a live system
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Aug 21, 2013

    You can capture a tcpdump first to see that up to L4 is working and then use ssldump with the server's SSL private key to check that SSL is working:

     

    sol411: Overview of packet tracing with the tcpdump utility https://support.f5.com/kb/en-us/solutions/public/0000/400/sol411.html

     

    tcpdump -ni 0.0 -s0 -w /var/tmp/trace.1.dmp host CLIENT_IP or host SERVER_IP replace CLIENT_IP and SERVER_IP with the client and pool member(s) IPs

     

    SOL10209 - Overview of packet tracing with the ssldump utility https://support.f5.com/kb/en-us/solutions/public/10000/200/sol10209.html?sr=31391333

     

    ssldump -AedHr /var/tmp/trace.1.dmp -Nk /var/tmp/private.key > /var/tmp/ssldump.txt

     

    Aaron