Instruction Manual

54
Chapter 7: Services Tab airOS
™
v5.5.4 User Guide
Ubiquiti Networks, Inc.
• Authorized Keys Click Edit to import a public key file
for SSH access to the device instead of using an admin
password.
- Choose File Click Choose File to locate the new key
file. Select the file and click Open.
- Import Imports the file for SSH access.
- Enabled Enables the specific key. All the added keys
are saved in the system configuration file; however,
only the enabled keys are active on the device.
- Type Displays the type of key.
- Key Displays the key.
- Comment You can enter a brief description of the
key.
- Action You have the following options:
• Add Adds a public key file.
• Edit Make changes to a public key file. Click Save to
save your changes.
• Del Deletes a public key file.
- Save Saves your changes.
- Close Discards your changes.
Telnet Server
The following Telnet Server parameters can be set:
Telnet Server This option activates Telnet access to the
device.
• Server Port Specify the TCP/IP port of the Telnet server.
NTP Client
Network Time Protocol (NTP) is a protocol for
synchronizing the clocks of computer systems over
packet-switched, variable-latency data networks. You
can use it to set the system time on the device. If the Log
option is enabled, then the system time is reported next to
every log entry that registers a system event.
NTP Client Enables the device to obtain the system time
from a time server on the Internet.
• NTP Server Specify the IP address or domain name of
the NTP server.
Dynamic DNS
Domain Name System (DNS) translates domain names
to IP addresses; each DNS server on the Internet holds
these mappings in its respective DNS database. Dynamic
Domain Name System (DDNS) is a network service that
notifies the DNS server in real time of any changes in the
device’s IP settings. Even if the device’s IP address changes,
you can still access the device through its domain name.
Dynamic DNS If enabled, the device allows
communications with the DDNS server.
• Host Name Enter the host name of the DDNS server.
• Username Enter the user name of the DDNS account.
• Password Enter the password of the DDNS account.
• Show Check the box to display the password
characters.