Cipherli.st Strong Ciphers for Apache, nginx and Lighttpd

haproxy

global
   ssl-default-bind-options no-sslv3 no-tls-tickets force-tlsv12
   ssl-default-bind-ciphers AES128+EECDH:AES128+EDH

frontend http-in
      mode http
      option httplog
      option forwardfor
      option http-server-close
      option httpclose
      bind 192.0.2.10:80
      redirect scheme https code 301 if !{ ssl_fc }

frontend https-in
    option httplog
    option forwardfor
    option http-server-close
    option httpclose
    rspadd Strict-Transport-Security:\ max-age=31536000;\ includeSubDomains;\ preload
    rspadd X-Frame-Options:\ DENY
    bind 192.0.2.10:443 ssl crt /etc/haproxy/haproxy.pem ciphers AES128+EECDH:AES128+EDH force-tlsv12 no-sslv3
        

Postfix

smtpd_use_tls=yes
smtpd_tls_security_level = may
smtpd_tls_auth_only = yes
smtpd_tls_cert_file=/etc/ssl/postfix.cert
smtpd_tls_key_file=/etc/ssl/postfix.key
smtpd_tls_mandatory_protocols = !SSLv2,!SSLv3,!TLSv1,!TLSv1.1
smtpd_tls_protocols=!SSLv2,!SSLv3,!TLSv1,!TLSv1.1
smtpd_tls_mandatory_ciphers = medium
tls_medium_cipherlist = AES128+EECDH:AES128+EDH
        

Exim

tls_certificate = /etc/exim.cert
tls_privatekey = /etc/exim.key
tls_advertise_hosts = *
tls_require_ciphers = AES128+EECDH:AES128+EDH
openssl_options = +no_sslv2 +no_sslv3
        

ProFTPd

TLSEngine on
TLSLog /var/ftpd/tls.log
TLSProtocol TLSv1.2
TLSRequired on
TLSCipherSuite AES128+EECDH:AES128+EDH
TLSRSACertificateFile /etc/proftpd.cert
TLSRSACertificateKeyFile /etc/proftpd.key
        

Dovecot

ssl = yes
ssl_cert = </etc/dovecot.cert
ssl_key = </etc/dovecot.key
ssl_protocols = !SSLv2 !SSLv3
ssl_cipher_list = AES128+EECDH:AES128+EDH
ssl_prefer_server_ciphers = yes # >Dovecot 2.2.6
ssl_dh_parameters_length = 4096 # >Dovecot 2.2
        

Hitch TLS Proxy

ciphers = "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH"
prefer-server-ciphers = on
          

Zarafa

Medium security

server_ssl_protocols = !SSLv2 !SSLv3
server_ssl_ciphers = ALL:!LOW:!SSLv2:!SSLv3:!EXP:!aNULL
server_ssl_prefer_server_ciphers = yes or no
        

High security

server_ssl_protocols = !SSLv2 !SSLv3 !TLSv1 !TLSv1.1  # >= Debian 7 / CentOS 7
server_ssl_ciphers = EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH EDH+aRSA:RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
server_ssl_prefer_server_ciphers = yes or no
        

MySQL

[mysqld]
ssl-ca=/etc/mysql-ssl/ca-cert.pem
ssl-cert=/etc/mysql-ssl/server-cert.pem
ssl-key=/etc/mysql-ssl/server-key.pem
ssl-cipher=AES128+EECDH:AES128+EDH
# replication:
GRANT REPLICATION SLAVE ON *.* to ‘repl’@’%’ REQUIRE SSL;
STOP SLAVE;
CHANGE MASTER MASTER_SSL=1,
MASTER_SSL_CA=’/etc/mysql-ssl/ca-cert.pem’,
MASTER_SSL_CERT=’/etc/mysql-ssl/client-cert.pem’,
MASTER_SSL_KEY=’/etc/mysql-ssl/client-key.pem';
SHOW SLAVE STATUS\G;
START SLAVE;
SHOW SLAVE STATUS\G;
        

DirectAdmin

ssl_cipher=AES128+EECDH:AES128+EDH
SSL=1
cacert=/usr/local/directadmin/conf/cacert.pem
cakey=/usr/local/directadmin/conf/cakey.pem
carootcert=/usr/local/directadmin/conf/carootcert.pem
        

Postgresql

ssl = on
ssl_ciphers = 'AES128+EECDH:AES128+EDH'
password_encryption = on
        

OpenSSH Server

Protocol 2
HostKey /etc/ssh/ssh_host_ed25519_key
HostKey /etc/ssh/ssh_host_rsa_key
KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
        

OpenSSH Client

HashKnownHosts yes
Host github.com
    MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512
Host *
  ConnectTimeout 30
  KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
  MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
  Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
  ServerAliveInterval 10
  ControlMaster auto
  ControlPersist yes
  ControlPath ~/.ssh/socket-%r@%h:%p
        

Golang Server

package main

import (
    "crypto/tls"
    "log"
    "net/http"
)

func main() {
    mux := http.NewServeMux()
    mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
        w.Header().Add("Strict-Transport-Security", "max-age=63072000; includeSubDomains")
        w.Write([]byte("This is an example server.\n"))
    })
    cfg := &tls.Config{
        MinVersion:               tls.VersionTLS12,
        CurvePreferences:         []tls.CurveID{tls.CurveP521, tls.CurveP384, tls.CurveP256},
        PreferServerCipherSuites: true,
        CipherSuites: []uint16{
            tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
            tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
            tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
            tls.TLS_RSA_WITH_AES_256_CBC_SHA,
        },
    }
    srv := &http.Server{
        Addr:         ":443",
        Handler:      mux,
        TLSConfig:    cfg,
        TLSNextProto: make(map[string]func(*http.Server, *tls.Conn, http.Handler), 0),
    }
    log.Fatal(srv.ListenAndServeTLS("tls.crt", "tls.key"))
}
        

UniFi Controller

unifi.https.ciphers=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
unifi.https.sslEnabledProtocols=TLSv1.2