NAME¶
Config::Model::models::Sshd::MatchElement - Configuration class
Sshd::MatchElement
DESCRIPTION¶
Configuration classes used by Config::Model
Configuration class that represents all parameters available inside a Match
block of a sshd configuration.
Elements¶
AllowTcpForwarding¶
Specifies whether TCP forwarding is permitted. The default is
"yes".Note that disabling TCP forwarding does not improve security
unless users are also denied shell access, as they can always install their
own forwarders.
Optional. Type enum. choice: 'no', 'yes'.
Banner¶
In some jurisdictions, sending a warning message before authentication may be
relevant for getting legal protection. The contents of the specified file are
sent to the remote user before authentication is allowed. This option is only
available for protocol version 2. By default, no banner is displayed.
Optional. Type uniline.
ForceCommand¶
Forces the execution of the command specified by ForceCommand, ignoring any
command supplied by the client. The command is invoked by using the user's
login shell with the -c option. This applies to shell, command, or subsystem
execution. It is most useful inside a Match block. The command originally
supplied by the client is available in the SSH_ORIGINAL_COMMAND environment
variable.
Optional. Type uniline.
GatewayPorts¶
Specifies whether remote hosts are allowed to connect to ports forwarded for the
client. By default,
sshd(8) binds remote port forwardings to the
loopback address. This prevents other remote hosts from connecting to
forwarded ports. GatewayPorts can be used to specify that sshd should allow
remote port forwardings to bind to non-loopback addresses, thus allowing other
hosts to connect.
Optional. Type enum. choice: 'yes', 'clientspecified',
'no'. upstream_default: 'no'.
Here are some explanations on the possible values:
- 'clientspecified'
- allow the client to select the address to which the
forwarding is bound
- 'no'
- No port forwarding
- 'yes'
- force remote port forwardings to bind to the wildcard
address
GSSAPIAuthentication¶
Specifies whether user authentication based on GSSAPI is allowed. Note that this
option applies to protocol version 2 only.
Optional. Type enum. choice:
'no', 'yes'. upstream_default: 'no'.
KbdInteractiveAuthentication¶
No doc found in sshd documentation.
Optional. Type enum. choice: 'no', 'yes'.
upstream_default: 'no'.
KerberosAuthentication¶
Specifies whether the password provided by the user for PasswordAuthentication
will be validated through the Kerberos KDC. To use this option, the server
needs a Kerberos servtab which allows the verification of the KDC's identity.
The default is "no".
Optional. Type enum. choice: 'no', 'yes'.
upstream_default: 'no'.
PasswordAuthentication¶
Specifies whether password authentication is allowed.
Optional. Type enum.
choice: 'no', 'yes'. upstream_default: 'no'.
PermitOpen¶
Specifies the destinations to which TCP port forwarding is permitted. The
forwarding specification must be one of the following forms:
"host:port" or "IPv4_addr:port" or
"[IPv6_addr]:port". An argument of "any" can be used to
remove all restrictions and permit any forwarding requests. By default all
port forwarding requests are permitted.
Optional. Type list of uniline.
RhostsRSAAuthentication¶
Specifies whether rhosts or /etc/hosts.equiv authentication together with
successful RSA host authentication is allowed. The default is "no".
This option applies to protocol version 1 only.
Optional. Type enum.
choice: 'no', 'yes'. upstream_default: 'no'.
RSAAuthentication¶
Specifies whether pure RSA authentication is allowed. This option applies to
protocol version 1 only.
Optional. Type enum. choice: 'no', 'yes'.
upstream_default: 'yes'.
X11DisplayOffset¶
Specifies the first display number available for
sshd(8)'s X11
forwarding. This prevents sshd from interfering with real X11 servers.
Optional. Type integer. upstream_default: '10'.
X11Forwarding¶
Specifies whether X11 forwarding is permitted. Note that disabling X11
forwarding does not prevent users from forwarding X11 traffic, as users can
always install their own forwarders. X11 forwarding is automatically disabled
if UseLogin is enabled.
Optional. Type enum. choice: 'yes', 'no'.
upstream_default: 'no'.
X11UseLocalhost¶
Specifies whether
sshd(8) should bind the X11 forwarding server to the
loopback address or to the wildcard address. By default, sshd binds the
forwarding server to the loopback address and sets the hostname part of the
DISPLAY environment variable to "localhost". This prevents remote
hosts from connecting to the proxy display. However, some older X11 clients
may not function with this configuration. X11UseLocalhost may be set to
"no" to specify that the forwarding server should be bound to the
wildcard address.
Optional. Type enum. choice: 'yes', 'no'.
upstream_default: 'yes'.
SEE ALSO¶
- •
- cme
AUTHOR¶
- Dominique Dumont
COPYRIGHT¶
- 2009-2011 Dominique Dumont
LICENSE¶
- LGPL2