Hi, I need help removing block cipher algorithms with block size of 64 bits like (DES and 3DES) birthday attack known as Sweet32, in Linux RedHat Enterprise 6.8. I need this for PCI compliance, but I'm not sure which files I need to edit in order to remove those ciphers. They are showing in scan results as warnings on ports 21, 465, 993, 995 and 8443. I use Plesk Onix as a control panel.
I have already edited /etc/nginx/conf.d/ssl.conf and /etc/httpd/conf.d/ssl.conf but they are still showing in the ports mention before.