164
Options List
B.11.4
SSH Console Interface
These instructions cover the setup and maintenance of using the Secure Shell (SSH) Console Interface. Secure
Shell is an alternative to using the Telnet protocol, and used for securely gaining access to a remote system
like the optional NTP/PTP Server. Configure all settings through one of the Ethernet ports. Instructions
on using the Web Interface for the same purpose are found in Section B.11.3.
Any Secure Shell (SSH) client, like OpenSSH or PuTTY
, is suggested. Make sure to select SSH and
type in the device’s IP address and connect. For Mac users, Terminal works fine. At the command prompt
(
B
is the command prompt) type:
B
ssh clockoption@
host
where
host
is either the hostname (if served
by your DNS server) or the IP address.
Press ENTER after typing the IP address. Shortly, you should be prompted for the password. Type in
the password and press ENTER. The console interface should open and appear similar to Figure B.26.
Startup Page: System Status
When logging in to the NTP/PTP Server using SSH console the opening screen should be the System
Status information page. This provides an overview of the operation of the NTP/PTP Servers. Figure B.26
illustrates the opening page.
User -- ssh clockoption@(IP address) -- 80x24
Time Protocol Server
ARBITER
SYSTEMS
NTP
PTP
SNMP
Clock
Network
[ System ]
Support
Logout
[
Status ] Configure | Password | Update | Reboot
System Time
System Time Offset
Time Quality
NTP
PTP
SNMP
SNMP Traps
Temperature
: 14:28:33 05/19/2014
: -114us
: Locked
: Running
: Enabled (Running)
: Enabled (Running)
: Enabled
33.3C
Figure B.26: SSH Console Interface: Startup Screen
If you do not know the IP address of the port you are connected to, press the SYSTEM key on the front
panel several times until you reach
OPTION STATUS
and press the ENTER. Press the UP or DOWN keys
to scroll through the NTP/PTP server pages. Messages should appear separately for NET 1 and for NET
2. If the IP addresses do not appear, then check to make sure a network cable is connected between the
chosen port and an active network. If there is no DHCP server on the network, a port set for DHCP will
not display. Factory default settings include one port set with a static IP address. Make sure that the Link
LED is lit.
IP addresses for all Ethernet ports of the installed NTP/PTP Server are either set automatically by the
Dynamic Host Configuration Protocol (DHCP) server on your network, or set to a static address. The front
panel will indicate the IP address of each port. The default static IP address is 192.168.0.232.