Login
- Table of Contents
-
- H3C WX3000 Series Unified Switches Switching Engine Command Reference-6W103
- 00-Preface
- 01-CLI Command
- 02-Login Command
- 03-Configuration File Management Command
- 04-VLAN Command
- 05-Auto Detect Command
- 06-Voice VLAN Command
- 07-GVRP Command
- 08-Basic Port Configuration Command
- 09-Link Aggregation Command
- 10-Port Isolation Command
- 11-Port Security-Port Binding Command
- 12-DLDP Command
- 13-MAC Address Table Management Command
- 14-MSTP Command
- 15-802.1x and System Guard Command
- 16-AAA Command
- 17-MAC Address Authentication Command
- 18-IP Address and Performance Command
- 19-DHCP Command
- 20-ACL Command
- 21-QoS-QoS Profile Command
- 22-Mirroring Command
- 23-ARP Command
- 24-SNMP-RMON Command
- 25-Multicast Command
- 26-NTP Command
- 27-SSH Command
- 28-File System Management Command
- 29-FTP-SFTP-TFTP Command
- 30-Information Center Command
- 31-System Maintenance and Debugging Command
- 32-VLAN-VPN Command
- 33-HWPing Command
- 34-DNS Command
- 35-Smart Link-Monitor Link Command
- 36-PoE-PoE Profile Command
- 37-Routing Protocol Command
- 38-UDP Helper Command
- 39-Index
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 34-DNS Command | 41.5 KB |
Table of Contents
DNS Configuration Commands
display dns domain
Syntax
display dns domain [ dynamic ]
View
Any view
Parameters
dynamic: Displays DNS suffixes dynamically assigned through DHCP or other protocols.
Description
Use the display dns domain command to display the DNS suffixes.
Related commands: dns domain.
Examples
# Display DNS suffixes
<device> display dns domain
No Domain-name
0 aaa.com
Table 1-1 display dns domain command output description
|
Field |
Description |
|
No |
Sequence number |
|
Domain-name |
DNS suffix |
display dns dynamic-host
Syntax
display dns dynamic-host
View
Any view
Parameters
None
Description
Use the display dns dynamic-host command to display the information in the dynamic domain name cache.
Examples
# Display the information in the dynamic domain name cache.
<device> display dns dynamic-host
No Domain-name ---> Ipaddress TTL Alias
No Domain-name <--- Ipaddress TTL Alias
Table 1-2 display dns dynamic-host command output description
|
Field |
Description |
|
No |
Sequence number |
|
Domain-name |
Domain name |
|
Ipaddress |
IP address of the corresponding domain name |
|
TTL |
Time for which an entry is cached in seconds. |
|
Alias |
Alias for the domain name. There can be four aliases at most. |
|
---> <--- |
DNS has two types: Forward resolution: domain name--->IP address Reverse resolution: IP address--->domain name |
display dns server
Syntax
display dns server [ dynamic ]
View
Any view
Parameters
dynamic: Displays the DNS Server information dynamically obtained through DHCP or other protocols.
Description
Use the display dns server command to display the DNS Server information.
Related commands: dns server.
Examples
# Display the DNS Server information.
<device> display dns server
Type:
D:Dynamic S:Static
IPv4 DNS Servers :
Domain-server Type IP Address
1 S 192.168.0.4
IPv6 DNS Servers :
Table 1-3 display dns server command output description
|
Field |
Description |
|
Type |
Type of the DNS server. S indicates the DNS server is specified manually, while D indicates the DNS server information is obtained dynamically through DHCP or other protocols. |
|
IPv4 DNS Servers |
IPv4 DNS server |
|
IPv6 DNS Servers |
IPv6 DNS server |
|
Domain-server |
Number of the DNS server, which is assigned automatically by the system and starts from 1. Such numbering for IPv4 DNS servers is independent of that for IPv6 ones. |
For details about IPv6 DNS, refer to IPv6 Management in H3C WX3000 Series Unified Switches Switching Engine Command Reference.
display ip host
Syntax
display ip host
View
Any view
Parameters
None
Description
Use the display ip host command to display mappings between host names and IP addresses in the static DNS database.
Examples
# Display mappings between host names and IP addresses in the static DNS database.
<device> display ip host
Host Age Flags Address
host.com 0 static 192.168.0.38
Table 1-4 display ip host command output description
|
Field |
Description |
|
Host |
Host name |
|
Age |
Time to live. 0 means that a static entry is never outdated. You can only manually remove the mappings between host names and IP addresses. |
|
Flags |
Indicates the type of mappings between host names and IP addresses, static or dynamic Static indicates static mapping between host names and IP addresses |
|
Address |
IP address of a host |
dns domain
Syntax
dns domain domain-name
undo dns domain [ domain-name ]
View
System view
Parameters
domain-name: DNS suffix, a string of 1 to 60 characters which can be letters, numbers, hyphens (-), underscores (_), and dots (.).
Description
Use the dns domain command to configure a DNS suffix.
Use the undo dns domain command to delete the configured DNS suffix.
No DNS suffix is configured by default.
You can configure a maximum of 10 DNS suffixes. You must enter the DNS suffix before deleting it. Otherwise, all configured DNS suffixes are deleted.
Related commands: display dns domain.
The DNS feature supported by the device should be used together with a DNS server. DNS implementations vary with DNS servers. For example, the device supports a domain name containing “_”, while a Windows 2000 Server PC may fail to resolve the domain name.
Examples
# Configure com as a DNS suffix.
<device> system-view
System View: return to User View with Ctrl+Z.
[device] dns domain com
dns resolve
Syntax
dns resolve
undo dns resolve
View
System view
Parameters
None
Description
Use the dns resolve command to enable dynamic domain name resolution.
Use the undo dns resolve command to disable dynamic domain name resolution.
Dynamic domain name resolution is disabled by default.
Examples
# Enable dynamic domain name resolution.
<device> system-view
System View: return to User View with Ctrl+Z.
[device] dns resolve
dns server
Syntax
dns server ip-address
undo dns server [ ip-address ]
View
System view
Parameters
ip-address: IP address of the DNS Server.
Description
Use the dns server command to configure an IP address for the DNS Server.
Use the undo dns server to remove the IP address of the DNS server.
No IP address is configured for the DNS Server by default.
You can configure a maximum of 6 DNS Servers.
Related commands: display dns server.
Examples
# Configure 172.16.1.1 for a DNS Server.
<device> system-view
System View: return to User View with Ctrl+Z.
[device] dns server 172.16.1.1
ip host
Syntax
ip host hostname ip-address
undo ip host hostname [ ip-address ]
View
System view
Parameters
hostname: Host name, a string of 1 to 20 characters which can be letters, numbers, hyphens (-), or dots (.). The host name must include at least one letter.
ip-address: IP address of the specified host, in dotted decimal notation.
Description
Use the ip host command to create a mapping between host name and IP address in the static DNS database.
Use the undo ip host command to remove the mapping.
No mappings are created by default.
Each host name can correspond to only one IP address. When IP addresses are configured for the same host for multiple times, only the IP address configured last time is valid.
Related commands: display ip host.
Examples
# Configure the IP address 10.110.0.1 for the host named aaa.
<device> system-view
System View: return to User View with Ctrl+Z.
[device] ip host aaa 10.110.0.1
nslookup type
Syntax
nslookup type { ptr ip-address | a domain-name }
View
Parameters
ptr ip-address: Resolves the corresponding domain name for an IP address.
Description
Use the nslookup type command to display DNS resolution result, namely, the domain name for a specified IP address or IP address for a specified domain name.
Examples
# Display the corresponding domain name for 192.168.3.2.
<device> nslookup type ptr 192.168.3.2
Trying DNS server (10.72.66.36)
Name: www.host.com
Address: 192.168.3.2
# Display the corresponding IP address for www.host.com.
<device> nslookup type a www.host.com
Trying DNS server (10.72.66.36)
Name: www.host.com
Address: 192.168.3.2
reset dns dynamic-host
Syntax
reset dns dynamic-host
View
User view
Parameters
None
Description
Use the reset dns dynamic-host command to clear information in the dynamic domain name cache.
Related commands: display dns dynamic-host.
Examples
# Clear the information in the dynamic domain name cache.
<device> reset dns dynamic-host
