[Xymon] SSL problems with xymon

Leif Sommerdal lso at ufm.dk
Fri Nov 22 10:14:22 CET 2019

Recently I got an error with a perfectly valid certificate in xymon.

Xymon reports

red Fri Nov 22 09:50:20 2019: SSL error

red https://www.su.dk/ - SSL error

Seconds: 0.261158000

Trying  to access the site using firefox from Xymon server doesn’t report any error:

[cid:image001.png at 01D5A11B.2B073820]

 Testing the certificate using openssl doesn't look right:

echo| openssl s_client -connect www.su.dk:443<http://www.su.dk:443>

no peer certificate available
No client certificate CA names sent
SSL handshake has read 0 bytes and written 289 bytes
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
    Protocol  : TLSv1.2
    Cipher    : 0000
    Key-Arg   : None
    Krb5 Principal: None
    PSK identity: None
    PSK identity hint: None
    Start Time: 1574412455
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)

Testing other sites using the same method works fine for other sites.

What can I do to solve this problem? How do I proceed?

If I'm missing some information - pease let med know.

Med venlig hilsen/Kind Regards

Leif Sommerdal

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