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Enables the DNS transparent intercept feature. You need to use this command only when you are configuring the type of transparent DNS query intercept that responds directly to the client. If you are configuring the type of transparent DNS query intercept that redirects the query to an alternative DNS or to another ServerIron, do not use this command.
EXAMPLE:
To enable DNS transparent intercept, enter the following:
ServerIron(config-gslb-dns-foundrynet.com)# dns transparent-intercept
Syntax: dns transparent-intercept
Possible values: N/A
Default value: Disabled
Moves activity to the privileged EXEC level from any level of the CLI, with the exception of the user level.
EXAMPLE:
To move to the privileged level, enter the following from any level of the CLI.
ServerIron(config-gslb-dns-foundrynet.com)# end
ServerIron#
Syntax: end
Possible values: N/A
Default value: N/A
Moves activity up one level from the current level. In this case, activity will be moved to the global level.
EXAMPLE:
ServerIron(config-gslb-dns-foundrynet.com)# exit
ServerIron(config)#
Syntax: exit
Possible values: N/A
Default value: N/A
Adds a host within a GSLB zone and assigns weights.
EXAMPLE:
The following commands enable the Weighted IP metric, add the zone gslb.com, add the host www within the gslb.com zone, and assign a weight of 50 to the ip address 1.1.1.80.
SLB-ServerIron(config-gslb-policy)# weighted-ip
SLB-ServerIron(config-gslb-policy)# gslb dns zone gslb.com
SLB-ServerIron(config-gslb-dns-gslb.com)# host www http
SLB-ServerIron(config-gslb-dns-gslb.com)# host www ip-weight 1.1.1.80 50
Syntax: [no] host <host-name> <host-application> | <tcp/udp-portnum>
Possible values:
The <host-name> parameter specifies the host name. You do not need to enter the entire fully qualified host name. Enter only the host portion of the name. For example, if the fully qualified host name is www.gslb.com, do no enter the entire name. Enter only "www". The rest of the name is already specified by the
gslb dns zone command.
The <host-application> parameter specifies the host application for which you want to create an IP list. Specify one of the following:
- ftp – the well-known name for port 21. (Ports 20 and 21 both are FTP ports but on the ServerIron, the name “ftp” corresponds to port 21.)
- tftp – the well-known name for port 69
- http – the well-known name for port 80
- imap4 – the well-known name for port 143
- ldap – the well-known name for port 389
- nntp – the well-known name for port 119
- pop3 – the well-known name for port 110
- smtp – the well-known name for port 25
- telnet – the well-known name for port 23
The <tcp/udp-portnum> parameter specifies a TCP/UDP port number instead of a well-known port.
Default value: N/A
Syntax: host www ip-weight <IP address> <weight>
Possible values:
<IP address> is the IP address for which you are assigning a weight.
<weight> is a value from 0 to 100
.
Default value: The default value is 0.
Configures DNS zone and host information for GSLB.
EXAMPLE:
To specify the foundrynet.com zone and two host names, each of which is associated with an application, enter the following commands:
ServerIron(config)# gslb dns zone-name foundrynet.com
ServerIron(config-gslb-dns-foundrynet.com)# host-info www http
ServerIron(config-gslb-dns-foundrynet.com)# host-info ftp ftp
The commands in this example add the zone foundrynet.com and add two hosts within that zone: www and ftp. The GSLB ServerIron will provide global SLB for these two hosts within the zone.
Syntax: [no] gslb dns zone-name <name>
The <name> parameter specifies the DNS zone name.
NOTE: If you delete a DNS zone (by entering the
no gslb dns zone-name <name> command), the zone and all the host names you associated with the zone are deleted.
Syntax: [no] host-info <host-name> <host-application> | <tcp/udp-portnum>
The <host-name> parameter specifies the host name. You do not need to enter the entire (fully-qualified) host name. Enter only the host portion of the name. For example, if the fully qualified host name is www.foundrynet.com, do not enter the entire name. Enter only “www”. The rest of the name is already specified by the
gslb dns zone-name command. You can enter a name up to 32 characters long.
The <host-application> specifies the host application for which you want the GSLB ServerIron to provide global SLB. You can specify one of the following:
- FTP – the well-known name for port 21. (Ports 20 and 21 both are FTP ports but on the ServerIron, the name “FTP” corresponds to port 21.)
- TFTP – the well-known name for port 69
- HTTP – the well-known name for port 80
- IMAP4 – the well-known name for port 143
- LDAP – the well-known name for port 389
- NNTP – the well-known name for port 119
- POP3 – the well-known name for port 110
- SMTP – the well-known name for port 25
- TELNET – the well-known name for port 23
The <tcp/udp-portnum> parameter specifies a TCP/UDP port number instead of a well-known port. If the application is not one of those listed above, you still can configure the GSLB ServerIron to perform the Layer 4 health check on the specified port.
NOTE: If the application number does not correspond to one of the well-known ports recognized by the ServerIron, the GSLB ServerIron performs Layer 4 TCP or UDP health checks for the ports but does not perform application-specific health checks.
Possible values: see above
Default value: N/A
This command is used to disable other commands. To do so, place the word
no before the command.
This command returns you from any level of the CLI to the User EXEC mode.
EXAMPLE:
ServerIron(config-gslb-dns-foundrynet.com)# quit
ServerIron>
Syntax: quit
Possible values: N/A
Default value: N/A
Displays the real and virtual server configuration information on a remote site ServerIron in the GSLB ServerIron’s CLI. The command also displays the session and CPU information used by the GSLB policy. You can view detailed configuration information and statistics for the site ServerIron, from the GSLB ServerIron’s management console. For more information, see the "Configuring Global Server Load Balancing" chapter in the Foundry ServerIron Installation and Configuration Guide.
Displays a variety of configuration and statistical information about the ServerIron. To see a description of the show commands, see "Show Commands" .
Saves the running-time configuration into the startup-config file.
EXAMPLE:
ServerIron(config-gslb-dns-foundrynet.com)# write memory
Syntax: write memory
Possible values: N/A
Default value: N/A
Displays the running-configuration of the ServerIron on the terminal screen.
EXAMPLE:
ServerIron(config-gslb-dns-foundrynet.com)# write terminal
Syntax: write terminal
Possible values: N/A
Default value: N/A
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