3 # Pseudo Random Number Generator (PRNG):
4 # Configure one or more sources to seed the PRNG of the SSL library.
5 # The seed data should be of good random quality.
6 # WARNING! On some platforms /dev/random blocks if not enough entropy
7 # is available. This means you then cannot use the /dev/random device
8 # because it would lead to very long connection times (as long as
9 # it requires to make more entropy available). But usually those
10 # platforms additionally provide a /dev/urandom device which doesn't
11 # block. So, if available, use this one instead. Read the mod_ssl User
12 # Manual for more details.
14 SSLRandomSeed startup builtin
15 SSLRandomSeed startup file:/dev/urandom 512
16 SSLRandomSeed connect builtin
17 SSLRandomSeed connect file:/dev/urandom 512
22 ## All SSL configuration in this context applies both to
23 ## the main server and all SSL-enabled virtual hosts.
27 # Some MIME-types for downloading Certificates and CRLs
29 AddType application/x-x509-ca-cert .crt
30 AddType application/x-pkcs7-crl .crl
33 # Configure the pass phrase gathering process.
34 # The filtering dialog program (`builtin' is a internal
35 # terminal dialog) has to provide the pass phrase on stdout.
36 SSLPassPhraseDialog exec:/usr/share/apache2/ask-for-passphrase
38 # Inter-Process Session Cache:
39 # Configure the SSL Session Cache: First the mechanism
40 # to use and second the expiring timeout (in seconds).
41 # (The mechanism dbm has known memory leaks and should not be used).
42 #SSLSessionCache dbm:${APACHE_RUN_DIR}/ssl_scache
43 SSLSessionCache shmcb:${APACHE_RUN_DIR}/ssl_scache(512000)
44 SSLSessionCacheTimeout 300
47 # Configure the path to the mutual exclusion semaphore the
48 # SSL engine uses internally for inter-process synchronization.
49 # (Disabled by default, the global Mutex directive consolidates by default
51 #Mutex file:${APACHE_LOCK_DIR}/ssl_mutex ssl-cache
55 # List the ciphers that the client is permitted to negotiate. See the
56 # ciphers(1) man page from the openssl package for list of all available
58 # Enable only secure ciphers:
59 #SSLCipherSuite HIGH:!aNULL
61 # Intermediate compatibility from https://wiki.mozilla.org/Security/Server_Side_TLS#Intermediate_compatibility_.28default.29:
62 # intermediate configuration
63 SSLProtocol all -SSLv3 -TLSv1 -TLSv1.1
64 SSLCipherSuite ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305
65 SSLHonorCipherOrder off
69 SSLStaplingCache "shmcb:logs/ssl_stapling(32768)"
71 # SSL server cipher order preference:
72 # Use server priorities for cipher algorithm choice.
73 # Clients may prefer lower grade encryption. You should enable this
74 # option if you want to enforce stronger encryption, and can afford
75 # the CPU cost, and did not override SSLCipherSuite in a way that puts
76 # insecure ciphers first.
78 #SSLHonorCipherOrder on
80 # The protocols to enable.
81 # Available values: all, SSLv3, TLSv1, TLSv1.1, TLSv1.2
82 # SSL v2 is no longer supported
83 #SSLProtocol all -SSLv3
85 # Compression is rarely supported and vulnerable, see CRIME attack
88 # Allow insecure renegotiation with clients which do not yet support the
89 # secure renegotiation protocol. Default: Off
90 #SSLInsecureRenegotiation on
92 # Whether to forbid non-SNI clients to access name based virtual hosts.
94 #SSLStrictSNIVHostCheck On
98 # vim: syntax=apache ts=4 sw=4 sts=4 sr noet