+Host based Access Control
+-------------------------
+
+It is possible to configure "apache2" like access control
+lists. Values are read from file '/etc/default/pveproxy'. For example:
+
+----
+ALLOW_FROM="10.0.0.1-10.0.0.5,192.168.0.0/22"
+DENY_FROM="all"
+POLICY="allow"
+----
+
+IP addresses can be specified using any syntax understood by `Net::IP`. The
+name 'all' is an alias for '0/0'.
+
+The default policy is 'allow'.
+
+[width="100%",options="header"]
+|===========================================================
+| Match | POLICY=deny | POLICY=allow
+| Match Allow only | allow | allow
+| Match Deny only | deny | deny
+| No match | deny | allow
+| Match Both Allow & Deny | deny | allow
+|===========================================================
+
+
+SSL Cipher Suite
+----------------
+
+You can define the cipher list in '/etc/default/pveproxy', for example
+
+ CIPHERS="HIGH:MEDIUM:!aNULL:!MD5"
+
+Above is the default. See the ciphers(1) man page from the openssl
+package for a list of all available options.
+
+
+Diffie-Hellman Parameters
+-------------------------
+
+You can define the used Diffie-Hellman parameters in
+'/etc/default/pveproxy' by setting `DHPARAMS` to the path of a file
+containing DH parameters in PEM format, for example
+
+ DHPARAMS="/path/to/dhparams.pem"
+
+If this option is not set, the built-in 'skip2048' parameters will be
+used.
+
+NOTE: DH parameters are only used if a cipher suite utilizing the DH key
+exchange algorithm is negotiated.
+