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| -rw-r--r-- | docs-xml/smbdotconf/security/clientsmbencrypt.xml | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/docs-xml/smbdotconf/security/clientsmbencrypt.xml b/docs-xml/smbdotconf/security/clientsmbencrypt.xml new file mode 100644 index 0000000..05df152 --- /dev/null +++ b/docs-xml/smbdotconf/security/clientsmbencrypt.xml @@ -0,0 +1,126 @@ +<samba:parameter name="client smb encrypt" + context="G" + type="enum" + enumlist="enum_smb_encryption_vals" + xmlns:samba="http://www.samba.org/samba/DTD/samba-doc"> +<description> + <para> + This parameter controls whether a client should try or is required + to use SMB encryption. It has different effects depending on whether + the connection uses SMB1 or SMB3: + </para> + + <itemizedlist> + <listitem> + <para> + If the connection uses SMB1, then this option controls the use + of a Samba-specific extension to the SMB protocol introduced in + Samba 3.2 that makes use of the Unix extensions. + </para> + </listitem> + + <listitem> + <para> + If the connection uses SMB2 or newer, then this option controls + the use of the SMB-level encryption that is supported in SMB + version 3.0 and above and available in Windows 8 and newer. + </para> + </listitem> + </itemizedlist> + + <para> + This parameter can be set globally. Possible values are + + <emphasis>off</emphasis>, + <emphasis>if_required</emphasis>, + <emphasis>desired</emphasis>, + and + <emphasis>required</emphasis>. + A special value is <emphasis>default</emphasis> which is + the implicit default setting of <emphasis>if_required</emphasis>. + </para> + + <variablelist> + <varlistentry> + <term><emphasis>Effects for SMB1</emphasis></term> + <listitem> + <para> + The Samba-specific encryption of SMB1 connections is an + extension to the SMB protocol negotiated as part of the UNIX + extensions. SMB encryption uses the GSSAPI (SSPI on Windows) + ability to encrypt and sign every request/response in a SMB + protocol stream. When enabled it provides a secure method of + SMB/CIFS communication, similar to an ssh protected session, but + using SMB/CIFS authentication to negotiate encryption and + signing keys. Currently this is only supported smbclient of by + Samba 3.2 and newer. Windows does not support this feature. + </para> + + <para> + When set to default, SMB encryption is probed, but not + enforced. When set to required, SMB encryption is required and + if set to disabled, SMB encryption can not be negotiated. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><emphasis>Effects for SMB3 and newer</emphasis></term> + <listitem> + <para> + Native SMB transport encryption is available in SMB version 3.0 + or newer. It is only used by Samba if + <emphasis>client max protocol</emphasis> is set to + <emphasis>SMB3</emphasis> or newer. + </para> + + <para> + These features can be controlled with settings of + <emphasis>client smb encrypt</emphasis> as follows: + </para> + + <itemizedlist> + <listitem> + <para> + Leaving it as default, explicitly setting + <emphasis>default</emphasis>, or setting it to + <emphasis>if_required</emphasis> globally will enable + negotiation of encryption but will not turn on + data encryption globally. + </para> + </listitem> + + <listitem> + <para> + Setting it to <emphasis>desired</emphasis> globally + will enable negotiation and will turn on data encryption + on sessions and share connections for those servers + that support it. + </para> + </listitem> + + <listitem> + <para> + Setting it to <emphasis>required</emphasis> globally + will enable negotiation and turn on data encryption + on sessions and share connections. Clients that do + not support encryption will be denied access to the + server. + </para> + </listitem> + + <listitem> + <para> + Setting it to <emphasis>off</emphasis> globally will + completely disable the encryption feature for all + connections. + </para> + </listitem> + </itemizedlist> + </listitem> + </varlistentry> + </variablelist> +</description> + +<value type="default">default</value> +</samba:parameter> |