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<P>The <VAR>/etc/cups/client.conf</VAR> and
<VAR>~/.cups/client.conf</VAR> files contain up to two directives
that determine how the client behaves. Each directive is listed
on a line by itself followed by its value. Comments are
introduced using the number sign ("#") character at the beginning
of a line.</P>
<H2 CLASS="title"><A NAME="Encryption">Encryption</A></H2>
<H3>Examples</H3>
<PRE CLASS="command">
Encryption Never
Encryption IfRequested
Encryption Required
Encryption Always
</PRE>
<H3>Description</H3>
<P>The <CODE>Encryption</CODE> directive specifies the default
encryption settings for the client.</P>
<P>The default setting is <VAR>IfRequested</VAR>.</P>
<H2 CLASS="title"><A NAME="ServerName">ServerName</A></H2>
<H3>Examples</H3>
<PRE CLASS="command">
ServerName foo.bar.com
ServerName 11.22.33.44
ServerName foo.bar.com:8631
</PRE>
<H3>Description</H3>
<P>The <CODE>ServerName</CODE> directive specifies sets the remote server that is to be used for all client operations. That is, it redirects all client requests to the remote server.</P>
<P>The default port number is 631 but can be overridden by adding a colon followed by the desired port number to the value.</P>
<P>The default is to use the local server ("<VAR>localhost</VAR>") or domain socket, if so configured.</P>
<H2 CLASS="title"><A NAME="SSLOptions">SSLOptions</A></H2>
<H3>Examples</H3>
<PRE CLASS="command">
SSLOptions None
SSLOptions AllowSSL3
SSLOptions AllowRC4
</PRE>
<H3>Description</H3>
<P>Sets encryption options (only in /etc/cups/client.conf). By
default, CUPS only supports encryption using TLS v1.0 or higher using
known secure cipher suites. The <i>AllowRC4</i> option enables the
128-bit RC4 cipher suites, which are required for some older clients
that do not implement newer ones. The <i>AllowSSL3</i> option enables
SSL v3.0, which is required for some older clients that do not support
TLS v1.0.</P>
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