06-Layer 3 - IP Services

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04-DNS commands
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DNS commands

display dns domain

Use display dns domain to display the domain name suffixes.

Syntax

display dns domain [ dynamic ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

dynamic: Displays the domain name suffixes dynamically obtained through DHCP or other protocols. If you do not specify this keyword, the command displays the statically configured and dynamically obtained domain name suffixes.

Examples

# Display domain name suffixes on the public network.

<Sysname> display dns domain

Type:

  D: Dynamic    S: Static

 

No.    Type   Domain suffix

1      S      com

2      D      net

Table 1 Command output

Field

Description

No.

Sequence number.

Type

Domain name suffix type:

·     SA statically configured domain name suffix.

·     DA domain name suffix dynamically obtained through DHCP or other protocols.

Domain suffix

Domain name suffixes.

 

Related commands

dns domain

display dns host

Use display dns host to display information about domain name-to-IP address mappings.

Syntax

display dns host [ ip | ipv6 ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ip: Specifies type A queries. A type A query resolves a domain name to the mapped IPv4 address.

ipv6: Specifies type AAAA queries. A type AAAA query resolves a domain name to the mapped IPv6 address.

Usage guidelines

If you do not specify the ip and ipv6 keywords, this command displays domain name-to-IP address mappings of all query types.

Examples

# Display domain name-to-IP address mappings of all query types.

<Sysname> display dns host

Type:

  D: Dynamic    S: Static

 

Total number: 3

No.  Host name         Type  TTL        Query type   IP addresses

1    sample.com        D     3132       A            192.168.10.1

                                                     192.168.10.2

                                                     192.168.10.3

2    zig.sample.com    S     -          A            192.168.1.1

3    sample.net        S     -          AAAA         FE80::4904:4448

Table 2 Command output

Field

Description

 

No.

Sequence number.

 

Host name

Domain name.

 

Type

Domain name-to-IP address mapping type:

·     S—A static mapping configured by the ip host or ipv6 host command.

·     DA mapping dynamically obtained through dynamic domain name resolution.

TTL

Time in seconds that a mapping can be stored in the cache.

For a static mapping, a hyphen (-) is displayed.

 

Query type

Query type, type A or type AAAA.

 

IP addresses

Replied IP address:

·     For type A query, the replied IP address is an IPv4 address.

·     For type AAAA query, the replied IP address is an IPv6 address.

 

 

Related commands

·     ip host

·     ipv6 host

·     reset dns host

display dns server

Use display dns server to display IPv4 DNS server information.

Syntax

display dns server [ dynamic ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

dynamic: Displays IPv4 DNS server information dynamically obtained through DHCP or other protocols. If you do not specify this keyword, the command displays statically configured and dynamically obtained IPv4 DNS server addresses.

Examples

# Display IPv4 DNS server information about the public network.

<Sysname> display dns server

Type:

  D: Dynamic    S: Static

 

No. Type  IP address

1   S     202.114.0.124

2   S     169.254.65.125

Table 3 Command output

Field

Description

No.

Sequence number.

 

Type

DNS server type:

·     S—A manually configured DNS server.

·     D—DNS server information dynamically obtained through DHCP or other protocols.

 

IP address

IPv4 address of the DNS server.

 

 

Related commands

dns server

display ipv6 dns server

Use display ipv6 dns server to display IPv6 DNS server information.

Syntax

display ipv6 dns server [ dynamic ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

dynamic: Displays IPv6 DNS server information dynamically obtained through DHCP or other protocols. If you do not specify this keyword, the command displays the statically configured and dynamically obtained IPv6 DNS server information.

Examples

# Display IPv6 DNS server information about the public network.

<Sysname> display ipv6 dns server

Type:

  D: Dynamic    S: Static

 

No. Type  IPv6 address                             Outgoing Interface

1   S     2::2

Table 4 Command output

Field

Description

No.

Sequence number.

Type

DNS server type:

·     S—A manually configured DNS server.

·     D—DNS server information dynamically obtained through DHCP or other protocols.

IPv6 address

IPv6 address of the DNS server.

Outgoing Interface

Output interface.

 

Related commands

ipv6 dns server

dns domain

Use dns domain to configure a domain name suffix.

Use undo dns domain to delete the specified domain name suffix.

Syntax

dns domain domain-name

undo dns domain domain-name

Default

No domain name suffix is configured. Only the provided domain name is resolved.

Views

System view

Predefined user roles

network-admin

Parameters

domain-name: Specifies a domain name suffix. It is a dot-separated, case-insensitive string that can include letters, digits, hyphens (-), underscores (_), and dots (.), for example, aabbcc.com. The domain name suffix can include a maximum of 253 characters, and each separated string includes no more than 63 characters.

Usage guidelines

A domain name suffix applies to both IPv4 DNS and IPv6 DNS.

You can specify a maximum of 16 domain name suffixes.

The system automatically adds the suffixes in the order they are configured to the domain name string received from a host for resolution.

Examples

# Configure the domain name suffix com for the public network.

<Sysname> system-view

[Sysname] dns domain com

Related commands

display dns domain

dns dscp

Use dns dscp to set the DSCP value for DNS packets sent by a DNS client or DNS proxy.

Use undo dns dscp to restore the default.

Syntax

dns dscp dscp-value

undo dns dscp

Default

The DSCP value in DNS packets is 0.

Views

System view

Predefined user roles

network-admin

Parameters

dscp-value: Sets the DSCP value in the range of 0 to 63.

Usage guidelines

The DSCP value of a packet specifies the priority level of the packet and affects the transmission priority of the packet. A bigger DSCP value represents a higher priority.

Examples

# Set the DSCP value to 30 for outgoing DNS packets.

<Sysname> system-view

[Sysname] dns dscp 30

dns proxy enable

Use dns proxy enable to enable DNS proxy.

Use undo dns proxy enable to restore the default.

Syntax

dns proxy enable

undo dns proxy enable

Default

DNS proxy is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This configuration applies to both IPv4 DNS and IPv6 DNS.

Examples

# Enable DNS proxy.

<Sysname> system-view

[Sysname] dns proxy enable

dns server

Use dns server to specify the IPv4 address of a DNS server.

Use undo dns server to remove the specified IPv4 address of a DNS server.

Syntax

dns server ip-address

undo dns server [ ip-address ]

Default

No DNS server is specified.

Views

System view

Predefined user roles

network-admin

Parameters

ip-address: Specifies an IPv4 address of a DNS server.

Usage guidelines

The device sends DNS query request to the DNS servers in the order their IPv4 addresses are specified.

You can specify a maximum of six DNS server IPv4 addresses.

If you do not specify an IPv4 address, the undo dns server command removes all DNS server IPv4 addresses.

Examples

# Specify the IPv4 address of a DNS server as 172.16.1.1.

<Sysname> system-view

[Sysname] dns server 172.16.1.1

Related commands

display dns server

dns source-interface

Use dns source-interface to specify the source interface for DNS packets.

Use undo dns source-interface to restore the default.

Syntax

dns source-interface interface-type interface-number

undo dns source-interface interface-type interface-number

Default

No source interface for DNS packets is specified. The device uses the primary IP address of the output interface of the matching route as the source IP address for a DNS request.

Views

System view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

This configuration applies to both IPv4 and IPv6.

·     In IPv4 DNS, the device uses the primary IPv4 address of the specified source interface as the source IP address of DNS query.

·     In IPv6 DNS, the device selects an IPv6 address of the source interface as the source IP address for DNS query. The method of selecting the IPv6 address is defined in RFC 3484.

You can specify only one source interface. If you use the command multiple times, the most recent configuration takes effect.

Examples

# Specify VLAN-interface 2 as the source interface for DNS packets on the public network.

<Sysname> system-view

[Sysname] dns source-interface vlan-interface 2

dns spoofing

Use dns spoofing to enable DNS spoofing and specify the IPv4 address to spoof DNS requests.

Use undo dns spoofing to disable DNS spoofing.

Syntax

dns spoofing ip-address

undo dns spoofing ip-address

Default

DNS spoofing is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the IPv4 address used to spoof DNS requests.

Usage guidelines

Use the dns spoofing command together with the dns proxy enable command. DNS spoofing enables the DNS proxy to send a spoofed reply with a configured IP address even if it cannot reach the DNS server because no dial-up connection is available. Without DNS spoofing, the proxy does not answer or forward a DNS request if it cannot find a local matching DNS entry or reach the DNS server.

You can specify only one replied IPv4 address on the DNS spoofing device. If you use the command multiple times, the most recent configuration takes effect.

Examples

# Enable DNS spoofing on the public network and specify the IPv4 address 1.1.1.1 to spoof DNS requests.

<Sysname> system-view

[Sysname] dns proxy enable

[Sysname] dns spoofing 1.1.1.1

Related commands

dns proxy enable

dns trust-interface

Use dns trust-interface to specify the DNS trusted interface.

Use undo dns trust-interface to remove the specified DNS trusted interface.

Syntax

dns trust-interface interface-type interface-number

undo dns trust-interface [ interface-type interface-number ]

Default

No trusted interface is specified.

Views

System view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

By default, an interface obtains DNS suffix and DNS server information from DHCP. A network attacker might act as the DHCP server to assign a wrong DNS suffix and DNS server address to the device. As a result, the device fails to obtain the resolved IP address or might get the wrong IP address. With the DNS trusted interface specified, the device only uses the DNS suffix and DNS server information obtained through the trusted interface to avoid attack.

This configuration is applicable to both IPv4 and IPv6.

You can configure up to 128 DNS trusted interfaces on the device.

If you do not specify an interface, the undo dns trust-interface command removes all DNS trusted interfaces.

Examples

# Specify VLAN-interface 2 as the DNS trusted interface.

<Sysname> system-view

[Sysname] dns trust-interface vlan-interface 2

ip host

Use ip host to create a host name-to-IPv4 address mapping.

Use undo ip host to remove a mapping.

Syntax

ip host host-name ip-address

undo ip host host-name ip-address

Default

No host name-to-IPv4 address mappings are created.

Views

System view

Predefined user roles

network-admin

Parameters

host-name: Specifies a host name, a case-insensitive string of 1 to 253 characters. It can include letters, digits, hyphens (-), underscores (_), and dots (.).

ip-address: Specifies the IPv4 address of the host.

Usage guidelines

You can configure a maximum of 1024 host name-to-IPv4 address mappings.

Each host name maps to only one IPv4 address. If you use the command multiple times, the most recent configuration takes effect.

Do not use the ping command parameter ip, -a, -c, -f, -h, -i, -m, -n, -p, -q, -r, -s, -t, -tos, or -v as the host name. For more information about the ping command parameters, see Network Management and Monitoring Command Reference.

Examples

# Map the IPv4 address 10.110.0.1 to the host name aaa on the public network.

<Sysname> system-view

[Sysname] ip host aaa 10.110.0.1

Related commands

display dns host

ipv6 dns dscp

Use ipv6 dns dscp to set the DSCP value for IPv6 DNS packets sent by an IPv6 DNS client or DNS proxy.

Use undo ipv6 dns dscp to restore the default.

Syntax

ipv6 dns dscp dscp-value

undo ipv6 dns dscp

Default

The DSCP value for IPv6 DNS packets is 0.

Views

System view

Predefined user roles

network-admin

Parameters

dscp-value: Sets the DSCP value in the range of 0 to 63.

Usage guidelines

The DSCP value of a packet specifies the priority level of the packet and affects the transmission priority of the packet. A bigger DSCP value represents a higher priority.

Examples

# Set the DSCP value to 30 for outgoing IPv6 DNS packets.

<Sysname> system-view

[Sysname] ipv6 dns dscp 30

ipv6 dns server

Use ipv6 dns server to specify the IPv6 address of a DNS server.

Use undo ipv6 dns server to remove the specified DNS server IPv6 address.

Syntax

ipv6 dns server ipv6-address [ interface-type interface-number ]

undo ipv6 dns server [ ipv6-address [ interface-type interface-number ] ]

Default

No DNS server IPv6 address is specified.

Views

System view

Predefined user roles

network-admin

Parameters

ipv6-address: Specifies the IPv6 address of a DNS server.

interface-type interface-number: Specifies the output interface by its type and number. If you do not specify an interface, the device forwards DNS packets out of the output interface of the matching route. Specify this argument if the IPv6 address of the DNS server is a link-local address. Do not specify this argument if the IPv6 address of the DNS server is a global unicast address.

Usage guidelines

For dynamic DNS, the device sends DNS query request to the IPv6 DNS servers in the order their IPv6 addresses are specified.

You can specify a maximum of six DNS server IPv6 addresses.

If you do not specify an IPv6 address, the undo ipv6 dns server command removes all DNS server IPv6 addresses.

Examples

# Specify the DNS server IPv6 address as 2002::1 for the public network.

<Sysname> system-view

[Sysname] ipv6 dns server 2002::1

Related commands

display ipv6 dns server

ipv6 dns spoofing

Use ipv6 dns spoofing to enable DNS spoofing and specify the IPv6 address to spoof DNS requests.

Use undo ipv6 dns spoofing to disable DNS spoofing.

Syntax

ipv6 dns spoofing ipv6-address

undo ipv6 dns spoofing ipv6-address

Default

DNS spoofing is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

ipv6-address: Specifies the IPv6 address used to spoof DNS requests.

Usage guidelines

Use the ipv6 dns spoofing command together with the dns proxy enable command.

DNS spoofing enables the DNS proxy on the device to send a spoofed reply with an IPv6 address in response to a type AAAA DNS request. Without DNS spoofing, the device does not forward or answer a request if no DNS server is specified or no DNS server is reachable.

You can specify only one replied IPv6 address. If you use the command multiple times, the most recent configuration takes effect.

Examples

# Enable DNS spoofing on the public network and specify the IPv6 address 2001::1 to spoof DNS requests.

<Sysname> system-view

[Sysname] dns proxy enable

[Sysname] ipv6 dns spoofing 2001::1

Related commands

dns proxy enable

ipv6 host

Use ipv6 host to create a host name-to-IPv6 address mapping.

Use undo ipv6 host to remove a mapping.

Syntax

ipv6 host host-name ipv6-address

undo ipv6 host host-name ipv6-address

Default

No host name-to-IPv6 address mappings are created.

Views

System view

Predefined user roles

network-admin

Parameters

host-name: Specifies a host name, a case-insensitive string of 1 to 253 characters. It can include letters, digits, hyphens (-), underscores (_), and dots (.).

ipv6-address: Specifies the IPv6 address of the host.

Usage guidelines

You can configure a maximum of 1024 host name-to-IPv6 address mappings.

Each host name maps to only one IPv6 address. If you use the command multiple times, the most recent configuration takes effect.

Do not use the ping ipv6 command parameter -a, -c, -i, -m, -q, -s, -t, -tc, or -v as the host name. For more information about the ping ipv6 command parameters, see Network Management and Monitoring Command Reference.

Examples

# Map IPv6 address 2001::1 to host name aaa on the public network.

<Sysname> system-view

[Sysname] ipv6 host aaa 2001::1

Related commands

ip host

reset dns host

Use reset dns host to clear information about the dynamic DNS cache.

Syntax

reset dns host [ ip | ipv6 ]

Views

User view

Predefined user roles

network-admin

Parameters

ip: Specifies type A queries. A type A query resolves a domain name to the mapped IPv4 address.

ipv6: Specifies type AAAA queries. A type AAAA query resolves a domain name to the mapped IPv6 address.

Usage guidelines

If you do not specify the ip and ipv6 keywords, the reset dns host command clears dynamic DNS cache information about all query types.

Examples

# Clear dynamic DNS cache information about all query types on the public network.

<Sysname> reset dns host

Related commands

display dns host


DDNS commands

The following matrix shows the feature and hardware compatibility:

 

Hardware series

Model

DDNS compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

Yes

WX2500H series

WX2510H

WX2540H

WX2560H

Yes

WX3000H series

WX3010H

WX3010H-L

WX3010H-X

WX3024H

WX3024H-L

Yes

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

No

WX5500E series

WX5510E

WX5540E

No

WX5500H series

WX5540H

WX5560H

WX5580H

No

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

No

 

ddns apply policy

Use ddns apply policy to apply the specified DDNS policy to the interface, update the mapping between the specified FQDN and the primary IP address of the interface, and enable DDNS update.

Use undo ddns apply policy to remove the DDNS policy applied to the interface and stop DDNS update.

Syntax

ddns apply policy policy-name [ fqdn domain-name ]

undo ddns apply policy policy-name

Default

No DDNS policy and FQDN for update are specified on the interface, and DDNS update is disabled.

Views

Interface view

Predefined user roles

network-admin

Parameters

policy-name: Specifies the DDNS policy name, a case-insensitive string of 1 to 32 characters.

fqdn domain-name: Specifies the FQDN to replace <h> in the URL for DDNS update. The domain-name argument specifies a case-insensitive string of 1 to 253 characters. It can include letters, digits, hyphens (-), underscores (_), and dots (.).

Usage guidelines

You can apply up to four DDNS policies to an interface.

If you use the ddns apply policy command multiple times with the same DDNS policy name but different FQDNs, both of the following occur:

·     The most recent configuration takes effect.

·     The device initiates a DDNS update request immediately.

Examples

# Apply the DDNS policy steven_policy to VLAN-interface 2 to update the domain name to IP address mapping for FQDN www.whatever.com and enable DDNS update.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] ddns apply policy steven_policy fqdn www.whatever.com

Related commands

·     ddns policy

·     display ddns policy

ddns dscp

Use ddns dscp to set the DSCP value for outgoing DDNS packets.

Use undo ddns dscp to restore the default.

Syntax

ddns dscp dscp-value

undo ddns dscp

Default

The DSCP value for outgoing DDNS packets is 0.

Views

System view

Predefined user roles

network-admin

Parameters

dscp-value: Sets the DSCP value in the range of 0 to 63.

Usage guidelines

The DSCP value of a packet specifies the priority level of the packet and affects the transmission priority of the packet. A bigger DSCP value represents a higher priority.

Examples

# Set the DSCP value to 30 for outgoing DDNS packets.

<Sysname> system-view

[Sysname] ddns dscp 30

ddns policy

Use ddns policy to create a DDNS policy and enter its view.

Use undo ddns policy to delete a DDNS policy.

Syntax

ddns policy policy-name

undo ddns policy policy-name

Default

No DDNS policy is created.

Views

System view

Predefined user roles

network-admin

Parameters

policy-name: Specifies the DDNS policy name, a case-insensitive string of 1 to 32 characters.

Usage guidelines

You can create up to 16 DDNS policies on the device.

Examples

# Create a DDNS policy steven_policy and enter its view.

<Sysname> system-view

[Sysname] ddns policy steven_policy

Related commands

·     ddns apply policy

·     display ddns policy

display ddns policy

Use display ddns policy to display information about DDNS policies.

Syntax

display ddns policy [ policy-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

policy-name: Specifies the DDNS policy name, a case-insensitive string of 1 to 32 characters. If you do not specify a DDNS policy, this command displays information about all DDNS policies.

Examples

# Display information about the DDNS policy steven_policy.

<Sysname> display ddns policy steven_policy

DDNS policy: steven_policy

  URL              : http://members.3322.org/dyndns/update?

                     system=dyndns&hostname=<h>&myip=<a>

  Username         : steven

  Password         : ******

  Method           : GET

  SSL client policy:

  Interval         : 1 days 0 hours 1 minutes

# Display information about all DDNS policies.

<Sysname> display ddns policy

DDNS policy: steven_policy

  URL              : http://members.3322.org/dyndns/update?system=

                     dyndns&hostname=<h>&myip=<a>

  Username         : steven

  Password         : ******

  Method           : GET

  SSL client policy:

  Interval         : 0 days 0 hours 30 minutes 

 

DDNS policy: tom-policy

  URL              : http://members.3322.org/dyndns/update?system=

                     dyndns&hostname=<h>&myip=<a>

  Username         :

  Password         :

  Method           : GET

  SSL client policy:

  Interval         : 0 days 0 hours 15 minutes

 

DDNS policy: u-policy

  URL              : oray://phservice2.oray.net

  Username         : username

  Password         :

  Method           : -

  SSL client policy:

  Interval         : 0 days 0 hours 15 minutes

 

Table 5 Command output

Field

Description

DDNS policy

DDNS policy name.

URL

URL address for a DDNS update request. This field is blank if no URL address is configured.

Username

Username for logging in to the DDNS server. This field is blank if no username is configured.

 

Password

Password for logging in to the DDNS server. This field is blank if no password is configured and displays ****** if a password is configured.

 

Method

Parameter transmission method used to send HTTP/HTTPS-based DDNS update requests.

Method types include GET and POST.

 

SSL client policy

Name of the associated SSL client policy. This field is blank if no SSL client policy is associated.

Interval

Interval for sending DDNS update requests.

 

Related commands

ddns policy

interval

Use interval to set the interval for sending DDNS update requests after DDNS update is enabled.

Use undo interval to restore the default value.

Syntax

interval days [ hours [ minutes ] ]

undo interval

Default

The DDNS update request interval is one hour.

Views

DDNS policy view

Predefined user roles

network-admin

Parameters

days: Days in the range of 0 to 365.

hours: Hours in the range of 0 to 23.

minutes: Minutes in the range of 0 to 59.

Usage guidelines

A DDNS update request is initiated immediately if either of the following conditions occurs:

·     The primary IP address of the interface changes.

·     The link state of the interface changes from down to up.

If you set the interval to 0, the device does not periodically initiate any DDNS update request. However, it initiates a DDNS update request in either of the following situations:

·     The primary IP address of the interface changes.

·     The link state of the interface changes from down to up.

If you use the interval command multiple times with different time intervals, the most recent configuration takes effect. If you change the interval for an applied DDNS policy, the device immediately initiates a DDNS update request and sets the interval as the update interval.

Examples

# Set the interval to one day and one minute for sending DDNS update requests for the DDNS policy steven_policy.

<Sysname> system-view

[Sysname] ddns policy steven_policy

[Sysname-ddns-policy-steven_policy] interval 1 0 1

Related commands

·     ddns policy

·     display ddns policy

method

Use method to specify the parameter transmission method for sending DDNS update requests to HTTP/HTTPS-based DDNS servers.

Use undo method to restore the default.

Syntax

method { http-get | http-post }

undo method

Default

The method http-get applies.

Views

DDNS policy view

Predefined user roles

network-admin

Parameters

http-get: Uses the get operation.

http-post: Uses the post operation.

Usage guidelines

This command applies to DDNS updates in HTTP/HTTPS. If the DDNS server uses HTTP or HTTPS service, choose a parameter transmission method compatible with the DDNS server. For example, a DHS server supports the http-post method.

If the DDNS policy has been applied to an interface, a DDNS update is sent immediately after the parameter transmission is changed.

Examples

# Specify the parameter transmission method as http-post for DDNS update request for DDNS policy steven_policy.

<Sysname> system-view

[Sysname] ddns policy steven_policy

[Sysname-ddns-policy-steven_policy] method http-post

Related commands

·     ddns policy

·     display ddns policy

password

Use password to specify the password for logging in to the DDNS server.

Use undo password to delete the password.

Syntax

password { cipher | simple } password

undo password

Default

No password is specified.

Views

DDNS policy view

Predefined user roles

network-admin

Parameters

cipher: Sets a ciphertext password.

simple: Sets a plaintext password.

password: Specifies a case-sensitive password string. If simple is specified, it must be a string of 1 to 32 characters. If cipher is specified, it must be a string of 1 to 73 characters.

Usage guidelines

For security purposes, all passwords, including passwords configured in plain text, are saved in cipher text.

Examples

# In the DDNS policy steven_policy, specify nevets as the password for logging in to the DDNS server.

<Sysname> system-view

[Sysname] ddns policy steven_policy

[Sysname-ddns-policy-steven_policy] password simple nevets

Related commands

·     ddns policy

·     display ddns policy

·     url

·     username

ssl-client-policy

Use ssl-client-policy to associate an SSL client policy with a DDNS policy.

Use undo ssl-client-policy to cancel the association of an SSL client policy with a DDNS policy.

Syntax

ssl-client-policy policy-name

undo ssl-client-policy

Default

No SSL client policy is associated with any DDNS policy.

Views

DDNS policy view

Predefined user roles

network-admin

Parameters

policy-name: Specifies the SSL client policy name, a case-insensitive string of 1 to 31 characters.

Usage guidelines

The SSL client policy is effective only for HTTPS-based DDNS update requests.

If you use the ssl-client-policy command multiple times with different SSL client policies, the most recent configuration takes effect.

Examples

# Associate the SSL client policy ssl_policy with the DDNS policy steven_policy.

<Sysname> system-view

[Sysname] ddns policy steven_policy

[Sysname-ddns-policy-steven_policy] ssl-client-policy ssl_policy

Related commands

·     ddns policy

·     display ddns policy

·     ssl-client-policy (Security Command Reference)

url

Use url to specify the URL address for DDNS update requests.

Use undo url to delete the URL address.

Syntax

url request-url

undo url

Default

No URL address is specified for DDNS update requests.

Views

DDNS policy view

Predefined user roles

network-admin

Parameters

request-url: Specifies the URL address, a case-sensitive string of 1 to 240 characters.

Usage guidelines

The URL addresses configured for update requests vary by DDNS server. Common DDNS server URL address format are shown in Table 6.

Table 6 Common URL addresses for DDNS update request

DDNS server

URL addresses for DDNS update requests

www.3322.org

http://members.3322.org/dyndns/update?system=dyndns&hostname=<h>&myip=<a>

DYNDNS

http://members.dyndns.org/nic/update?system=dyndns&hostname=<h>&myip=<a>

DYNS

http://www.dyns.cx/postscript.php?host=<h>&ip=<a>

ZONEEDIT

http://dynamic.zoneedit.com/auth/dynamic.html?host=<h>&dnsto=<a>

TZO

http://cgi.tzo.com/webclient/signedon.html?TZOName=<h>IPAddress=<a>

EASYDNS

http://members.easydns.com/dyn/ez-ipupdate.php?action=edit&myip=<a>&host_id=<h>

HEIPV6TB

http://dyn.dns.he.net/nic/update?hostname=<h>&myip=<a>

CHANGE-IP

http://nic.changeip.com/nic/update?hostname=<h>&offline=1

NO-IP

http://dynupdate.no-ip.com/nic/update?hostname=<h>&myip=<a>

DHS

http://members.dhs.org/nic/hosts?domain=dyn.dhs.org&hostname=<h>&hostscmd=edit&hostscmdstage=2&type=1&ip=<a>

HP

https://server-name/nic/update?group=group-name&myip=<a>

ODS

ods://update.ods.org

GNUDIP

gnudip://server-name

PeanutHull

oray://phservice2.oray.net

 

No username or password is included in the URL address. To configure the username and password, use the username command and the password command.

HP and GNUDIP are common DDNS update protocols. The server-name parameter is the domain name or IP address of the service provider's server using one of the update protocols.

The URL address for an update request can start with:

·     http://The HTTP-based DDNS server.

·     https://The HTTPS-based DDNS server.

·     ods://The TCP-based ODS server.

·     gnudip://The TCP-based GNUDIP server.

·     oray://The TCP-based DDNS server.

The domain names of DDNS servers are members.3322.org and phservice2.oray.net. The domain names of PeanutHull DDNS servers can be phservice2.oray.net, phddns60.oray.net, client.oray.net, ph031.oray.net, and so on. Determine the domain name in the URL according to the actual situation.

The port number in the URL address is optional. If you do not specify a port number, the default port number is used. HTTP uses port 80, HTTPS uses port 443, and the PeanutHull server uses port 6060.

The system automatically performs the following tasks:

·     Fills <h> with the FQDN that is specified when the DDNS policy is applied to the interface.

·     Fills <a> with the primary IP address of the interface to which the DDNS policy is applied.

You might also manually specify an FQDN and an IP address in <h> and <a>, respectively. After that, the FQDN that is specified when the DDNS policy is applied becomes ineffective. However, manual configuration of <h> and <a> is not recommended.

You cannot specify an FQDN and IP address in the URL address for contacting the PeanutHull server. Alternatively, you can specify an FQDN when applying the DDNS policy to an interface. The system automatically uses the primary IP address of the interface to which the DDNS policy is applied as the IP address for DDNS update.

To avoid misinterpretation, do not include colons (:), at signs (@), and question marks (?) in your login ID or password, even if you can do so.

If you use the url command multiple times with different URL addresses, the most recent configuration takes effect.

Examples

# Specify the URL address for DDNS update requests for DDNS policy steven_policy. The device contacts www.3322.org for DDNS update.

<Sysname> system-view

[Sysname] ddns policy steven_policy

[Sysname-ddns-policy-steven_policy] url http://members.3322.org/dyndns/update?system=dyndns&hostname=<h>&myip=<a>

Related commands

·     ddns policy

·     display ddns policy

·     password

·     username

username

Use username to specify the username for logging in to the DDNS server.

Use undo username to delete the username.

Syntax

username username

undo username

Default

No username is specified.

Views

DDNS policy view

Predefined user roles

network-admin

Parameters

username: Specifies the username, a case-sensitive string of 1 to 32 characters.

Examples

# In the DDNS policy steven_policy, specify steven as the username for logging in to the DDNS server.

<Sysname> system-view

[Sysname] ddns policy steven_policy

[Sysname-ddns-policy-steven_policy] username steven

Related commands

·     ddns policy

·     display ddns policy

·     password

·     url