Configure DNS in CX Module

fatalXerror — Tue, 12 Mar 2019 08:15:18 GMT

Hi Guys,

Good Day!

I would like to ask, how can I configure DNS settings in CX CLI without entering the "setup" command?

Thanks.

You cannot. The setup command

Marvin Rhoads — Fri, 09 Sep 2016 15:11:34 GMT

You cannot. The setup command is the only supported way you can change the DNS server on a CX module.

Hi Marvin,

fatalXerror — Sat, 10 Sep 2016 23:43:42 GMT

Hi Marvin,

Good Day!

Thanks for the feedback.

This will cause reboot in the CX module right?

Thanks

No - changing the DNS server

Marvin Rhoads — Sun, 11 Sep 2016 14:21:50 GMT

No - changing the DNS server(s) or domain name using "setup" on a CX module does not require a reboot.

I just verified on one of mine by running through the process and adding a DNS server. The change applied and started working immediately without reboot required.

cx>setup

 Welcome to Cisco Prime Security Manager Setup 
 [hit Ctrl-C to abort]
 Default values are inside []

Enter a hostname [cx]: cx
Do you want to configure IPv4 address on management interface?(y/n) [Y]: Y
Do you want to enable DHCP for IPv4 address assignment on management interface?(y/n) [N]: N
Enter an IPv4 address [<redacted>]: <redacted>
Enter the netmask [255.255.255.0]: 255.255.255.0
Enter the gateway [<redacted>]: <redacted>
Do you want to configure static IPv6 address on management interface?(y/n) [N]: N
Stateless autoconfiguration will be enabled for IPv6 addresses. 
Enter the primary DNS server IP address [<redacted>]: <redacted>
Do you want to configure Secondary DNS Server? (y/n) [n]: y
Enter the secondary DNS server IP address: <redacted>
Do you want to configure Local Domain Name? (y/n) [y]: y
Enter the local domain name [<redacted>]: <redacted>
Do you want to configure Search domains? (y/n) [n]: n
Do you want to enable the NTP service? [Y]: Y
Enter the NTP servers separated by commas [<redacted>]: <redacted>
Do you want to enable the NTP symmetric key authentication? [N]: N
Please review the final configuration:
Hostname: cx
Management Interface Configuration

IPv4 Configuration: static
 IP Address: <redacted>
 Netmask: 255.255.255.0
 Gateway: <redacted>

IPv6 Configuration: Stateless autoconfiguration

DNS Configuration:
 Domain: <redacted>
 DNS Server:
 <redacted>
 <redacted>

NTP configuration:
 <redacted>
CAUTION:
You have selected IPv6 stateless autoconfiguration, which assigns a global address
based on network prefix and a device identifier. Although this address is unlikely
to change, if it does change, the system will stop functioning correctly.
We suggest you use static addressing instead.

Apply the changes?(y,n) [Y]: y
Configuration saved successfully!
Applying...
Done.
Press ENTER to continue...

cx>show dns
Local domain:
domain <redacted>
Search domain:
DNS servers:
nameserver <redacted>
nameserver <redacted>
cx>

Hi Marvin,

fatalXerror — Tue, 13 Sep 2016 02:00:14 GMT

Hi Marvin,

Good Day!

Thanks you for this.

Much appreciated.

topic Hi Marvin, in Network Security

Configure DNS in CX Module

You cannot. The setup command

Hi Marvin,

No - changing the DNS server

Hi Marvin,