[CentOS] Disabling TLS 1.1 in Centos 7 cockpit

Randal, Phil

phil.randal at hoopleltd.co.uk
Fri Dec 27 15:04:22 UTC 2019


Try creating /etc/system/system/cockpit.service.d/ssl.conf and putting this in it:

[Service]
Environment=G_TLS_GNUTLS_PRIORITY=NORMAL:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1

Then

systemctl daemon-reload
systemctl restart cockpit

Cheers,

Phil


-----Original Message-----
From: CentOS <centos-bounces at centos.org> On Behalf Of Erick Perez - Quadrian Enterprises
Sent: 27 December 2019 03:26
To: centos at centos.org
Subject: [CentOS] Disabling TLS 1.1 in Centos 7 cockpit

CAUTION: This email originated from outside of the organisation. Do not click links or open attachments unless you recognise the sender and know the content is safe.

Hi, I'm using cockpit in standard port 9090 in a Centos 7 system.
Due to a suggestion from management, they want TLS 1.1 disabled system-wide in all Linux boxes and TLS 1.2 enabled.

I have not found proper documentation on how to disable it for cockpit (version 195.1 ships with Centos 7)

So far I have tried (https://cockpit-project.org/guide/149/https.html):

/usr/lib/systemd/system/cockpit.service
[Service]
Environment=G_TLS_GNUTLS_PRIORITY=-VERS-ALL:+VERS-TLS1.2

And I also created the file /etc/systemd/system/cockpit.service.d/ssl.conf
and added:
[Service]
Environment=G_TLS_GNUTLS_PRIORITY=-VERS-ALL:+VERS-TLS1.2

after that, I systemctl restart cockpit

But if I do
#openssl s_client -connect  localhost:9090 -tls1_1 I get a proper response (a certificate), so TLS 1.1 is being accepted.

Suggestions?

Thanks.

--

---------------------
Erick Perez
---------------------
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