From eaccca5df3292848d70d47dbd7480092f8bc0b62 Mon Sep 17 00:00:00 2001
From: Jim Jagielski
SSL_CIPHER_EXPORT
true
if cipher is an export cipherSSL_CIPHER_USEKEYSIZE
SSL_CIPHER_ALGKEYSIZE
SSL_COMPRESS_METHOD
SSL_VERSION_INTERFACE
SSL_VERSION_LIBRARY
SSL_CLIENT_M_VERSION
internal
+
+ This disables any global/inter-process Session Cache. However + it does allow OpenSSL to use its own internal session cache. This in + mainly useful in situations where a global cache cannot be used + but the client requires a non-null session ID.
dbm:/path/to/datafile
This makes use of a DBM hashfile on the local disk to diff --git a/docs/manual/mod/mod_ssl.xml b/docs/manual/mod/mod_ssl.xml index cf1de480e5..c93e5b1918 100644 --- a/docs/manual/mod/mod_ssl.xml +++ b/docs/manual/mod/mod_ssl.xml @@ -412,6 +412,13 @@ The following four storage types are currently supported:
using certain browsers, particularly if client certificates are enabled. This setting is not recommended.internal
+
+ This disables any global/inter-process Session Cache. However + it does allow OpenSSL to use its own internal session cache. This in + mainly useful in situations where a global cache cannot be used + but the client requires a non-null session ID.
dbm:/path/to/datafile
This makes use of a DBM hashfile on the local disk to diff --git a/docs/manual/ssl/ssl_faq.html.en b/docs/manual/ssl/ssl_faq.html.en index d87803023b..b58b57bc19 100644 --- a/docs/manual/ssl/ssl_faq.html.en +++ b/docs/manual/ssl/ssl_faq.html.en @@ -671,6 +671,7 @@ browsers complain that they cannot verify the server certificate?
Although SSL compression negotiation was already defined in the specification +of SSLv2 and TLS, it took until May 2004 when RFC 3749 defined DEFLATE as +a negotiable standard compression method. +
+OpenSSL 0.9.8 started to support this by default when compiled with the
+zlib
option. If both the client and the server support compression,
+it will be used. However, most clients still try to initially connect with an
+SSLv2 Hello. As SSLv2 did not include an array of prefered compression algorithms
+in its handshake, compression can not be negotiated with these clients.
+If the client disables support for SSLv2, based on the used SSL library
+a SSLv3 or TLS Hello might be sent and compression might be set up.
+You can verify if clients make use of SSL compression by logging the
+%{SSL_COMPRESS_METHOD}x
variable.
+