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Phil_102636's avatar
Phil_102636
Icon for Nimbostratus rankNimbostratus
Oct 03, 2012

simple https monitor fails on node using ssl cert

OS: 10.2.3

 

LTM

 

Re: simple https monitor fails when IIS node uses SSL Cert. Did a tcpdump and just see resets when using the https monitor. Checked node and port 443 is open. Not really sure why we have this issue unless it has something to do with cipher. We rarely have seen this so am posting to see if someone else has some input.

 

Thanks

 

management
monitoring

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  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Oct 03, 2012
    who sent reset? when was reset sent? can you post ssldump output?

     

     

    ssldump -Aed -nni 0.0 host x.x.x.x and host y.y.y.y and port 443

     

    x.x.x.x is non-floating self ip

     

    y.y.y.y is iis server ip
  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Oct 03, 2012
    It might also be worth trying to connect directly to the node with a client and confirming the SSL certificate is presented.
  • Phil_102636's avatar
    Phil_102636
    Icon for Nimbostratus rankNimbostratus
    Oct 03, 2012

    New TCP connection 1: 10.115.2.1(46215) <-> 10.115.2.252(443)

     

    1 1 1349275180.3509 (0.0020) C>S SSLv2 compatible client hello

     

    Version 3.1

     

    cipher suites

     

    TLS_RSA_WITH_AES_256_CBC_SHA

     

    TLS_RSA_WITH_AES_128_CBC_SHA

     

    TLS_RSA_WITH_RC4_128_SHA

     

    TLS_RSA_WITH_3DES_EDE_CBC_SHA

     

    TLS_DHE_RSA_WITH_AES_256_CBC_SHA

     

    TLS_DHE_DSS_WITH_AES_256_CBC_SHA

     

    TLS_DHE_RSA_WITH_AES_128_CBC_SHA

     

    TLS_DHE_DSS_WITH_AES_128_CBC_SHA

     

    TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA

     

    TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA

     

    Unknown value 0xff

     

    1 1349275180.3515 (0.0006) S>C TCP RST

     

     

    Here is the output.

     

  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Oct 03, 2012
    have you tried ALL cipher list in https monitor?

     

     

    does the iis server accept SHA?
  • pmaubo2_55685's avatar
    pmaubo2_55685
    Icon for Nimbostratus rankNimbostratus
    Oct 11, 2012
    It turned out they gave us a corrupted SSL CERT so once it was redone, all was well and life was good.