Re: Disabling RC4 ciphers for TLS on admin server

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On Tue, 2016-07-19 at 06:53 -0500, Jean G Redfearn wrote:
> Hi,
>  
> I am having problems disabling the RC4 ciphers on the admin server.  There are 3 tabs in the GUI separating SSL2, SSL3 and TLS.  The TLS tab has 4 options, 2 of which involve RC4 ciphers.  The GUI allows me to un-select the RC4 buttons and save.  It presents a notice that the admin server needs to be restarted.  After closing the GUI, I restart the admin server and log back into the GUI.  Checking the ciphers on the admin server, the RC4 ciphers are enabled on the TLS tab.
> In the console.conf for the admin server, NSSCipherSuite lists the SSL3 ciphers but I do not see any of the TLS ciphers listed in table 7.3 of the RH Dir. Serv. Admin guide (p312).
>  
> To disable these ciphers can I just add "-tls_rsa_export1024_with_rc4_56_sha,-tls_dhe_dss_1024_r4_sha,-tlsdhe_dss_rc4_128_sha" to the NSSCipherSuite variable?

Are you changing this on the dse.ldif, or the httpd.conf? 

Either way, you can do this as you say, by setting the minus parameters
to:

dn: cn=encryption,cn=config
nsSSL3Ciphers:

Or in the httpd nss.conf:

NSSCipherSuite

>  
> Thanks,
>  
> 
> Jean Redfearn, CISSP, RHCE, GCIH
> Raytheon Company
> -- 389-users mailing list 389-users@xxxxxxxxxxxxxxxxxxxxxxx https://lists.fedoraproject.org/admin/lists/389-users@xxxxxxxxxxxxxxxxxxxxxxx

-- 
Sincerely,

William Brown
Software Engineer
Red Hat, Brisbane

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