I have just performed a test via SSLlabs.com and I’m apparently supporting some weaker ciphers. I’ve managed to improve several settings (like CAA), but I’m getting stuck at the ciphers.
I’ve been looking around a bit, but can’t really find a method to determine which can be disabled, and which should remain allowed.
Is there a method I can apply, or some check, or a list of current smart config? I’m assuming I can’t just turn of all ciphers marked ‘weak’ if I want at least a mayority support (It’s a private server for some small projects, you may assume modern hard-/software accesses it).
If it helps, this is the list:
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8) ECDH x25519 (eq. 3072 bits RSA) FS 256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f) ECDH x25519 (eq. 3072 bits RSA) FS 128 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030) ECDH x25519 (eq. 3072 bits RSA) FS 256 TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e) DH 2048 bits FS 128 TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f) DH 2048 bits FS 256 // All below are weak TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027) ECDH x25519 (eq. 3072 bits RSA) FS WEAK 128 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028) ECDH x25519 (eq. 3072 bits RSA) FS WEAK 256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) ECDH x25519 (eq. 3072 bits RSA) FS WEAK 128 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) ECDH x25519 (eq. 3072 bits RSA) FS WEAK 256 TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67) DH 2048 bits FS WEAK 128 TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33) DH 2048 bits FS WEAK 128 TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b) DH 2048 bits FS WEAK 256 TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39) DH 2048 bits FS WEAK 256 TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c) WEAK 128 TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d) WEAK 256 TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c) WEAK 128 TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d) WEAK 256 TLS_RSA_WITH_AES_128_CBC_SHA (0x2f) WEAK 128 TLS_RSA_WITH_AES_256_CBC_SHA (0x35) WEAK 256 
