<dt><code>setifempty</code></dt>
<dd>The request header is set, but only if there is no previous header
- with this name. Available in 2.4.7 and later.</dd>
+ with this name.<br />
+ Available in 2.4.7 and later.</dd>
<dt><code>unset</code></dt>
<dd>The request header of this name is removed, if it exists. If
<contextlist><context>server config</context><context>virtual host</context>
<context>directory</context><context>.htaccess</context></contextlist>
<override>FileInfo</override>
-<compatibility>Default condition was temporarily changed to "always" in 2.3.9 and 2.3.10. SetIfEmpty available since 2.4.7.</compatibility>
+<compatibility>Default condition was temporarily changed to "always" in 2.3.9 and 2.3.10.<br />
+SetIfEmpty and note available in 2.4.7 and later.</compatibility>
<usage>
<p>This directive can replace, merge or remove HTTP response
<dt><code>setifempty</code></dt>
<dd>The request header is set, but only if there is no previous header
- with this name. Available in 2.4.7 and later.</dd>
+ with this name.<br />
+ Available in 2.4.7 and later.</dd>
<dt><code>unset</code></dt>
<dd>The response header of this name is removed, if it exists.
<dd>The value of the named response <var>header</var> is copied into an
internal note whose name is given by <var>value</var>. This is useful
if a header sent by a CGI or proxied resource is configured to be unset
- but should also be logged.</dd>
+ but should also be logged.<br />
+ Available in 2.4.7 and later.</dd>
</dl>
<override>AuthConfig</override>
<usage>
- <p>This directive, if enabled by the <code>LDAPReferrals</code> directive,
+ <p>This directive, if enabled by the <directive>LDAPReferrals</directive> directive,
limits the number of referral hops that are followed before terminating an
LDAP query.</p>
<default>LDAPReferrals On</default>
<contextlist><context>directory</context><context>.htaccess</context></contextlist>
<override>AuthConfig</override>
+<compatibility>The <var>default</var> parameter is available in Apache 2.4.7 and later</compatibility>
<usage>
<p>Some LDAP servers divide their directory among multiple domains and use referrals
explicitly configures the referral chasing in the underlying SDK.</p>
- <p><directive>LDAPReferrals</directive> takes the takes the following values:
- </p>
+ <p><directive>LDAPReferrals</directive> takes the following values:</p>
<dl>
<dt>"on"</dt>
<dd> <p> When set to "on", the underlying SDK's referral chasing state
registered.</p></dd>
</dl>
- <p> The directive <code>LDAPReferralHopLimit</code> works in conjunction with
+ <p>The directive <directive>LDAPReferralHopLimit</directive> works in conjunction with
this directive to limit the number of referral hops to follow before terminating the LDAP query.
When referral processing is enabled by a value of "On", client credentials will be provided,
- via a rebind callback, for any LDAP server requiring them. </p>
+ via a rebind callback, for any LDAP server requiring them.</p>
</usage>
</directivesynopsis>
<tr><td><code>%S</code></td>
<td>Bytes transferred (received and sent), including request and headers,
- cannot be zero. This is the combination of %I and %O.</td></tr>
+ cannot be zero. This is the combination of %I and %O.<br />
+ Available in Apache 2.4.7 and later</td></tr>
</table>
<p>Usually, the functionality is used like this:</p>
secret to the end of the list, and once rolled out completely to all servers, remove
the first key from the start of the list.</p>
- <p>If the value begins with exec: the resulting command will be executed and the
- first line returned to standard output by the program will be used as the key.</p>
+ <p>As of version 2.4.7 if the value begins with <var>exec:</var> the resulting command
+ will be executed and the first line returned to standard output by the program will be
+ used as the key.</p>
<example><pre>
#key used as-is
SessionCryptoPassphrase secret