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sslv3 error while testing https

list Mike Burger
Thu, 21 May 2020 15:07:40 +0000
Message-Id: <user-cf8eb943a2f8@xymon.invalid>

On 2020-05-20 06:30, Schrittenlocher, Rolf wrote:
Dear all,

we disabled for security reasons sslv3 in apache. Since then xymon
complains about not being able to negotiate sslv3 and goes read with
an ssl error.

https://lists.xymon.com/archive/2014-December/040782.html shows that
with bbtest-net could specificate which ssl version to use. This
doesn't seem to be possible with xymon. Any hints how to test https
correctly without sslv3? We are using xymon 4.3.17,
Hello, Rolf.

I recently came across the same issue when one of the sites I monitor did the same.

My Google searches lead to the possiblity of doing one of two things:

1) Modify the xymonnet call in tasks.cfg to include --sni (the default is --nosni)
2) Add "sni" to the site's entry in hosts.cfg (adding this to the hosts.cfg overrides the default behavior and/or the behavior as configured in tasks.cfg, for the host entry in question).

I employed #2 and it cleared up the problem for me.
-- 
Mike Burger
http://www.bubbanfriends.org

"It's always suicide-mission this, save-the-planet that. No one ever just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1