The system shell of a QNX-based JACE provides simple, menu-driven, text-prompt access to basic Niagara platform settings, including IP network settings, platform credentials, system time, and enabling/disabling FTP and Telnet. You can also perform a TCP/IP “ping” from the JACE to another host.
Changes issued in the system shell become immediately effective, except for IP address settings (Update Network Settings). You must reboot the JACE in order for any changed network settings to become effective.
If Telnet is enabled in a JACE, you can also access the JACE’s system shell using a Telnet session. Platform login is still
required (just as with a JACE powered up in serial shell mode).
Be careful when changing items from the system shell, in particular platform account (login credentials) and network settings.
If you change platform login credentials and then lose or forget them, you can restore the “factory default” platform login
credentials—however, you will need to make a serial shell connection, reboot the JACE, and then be careful to press a key
at the appropriate time during JACE boot up.
Figure 33 shows the main JACE system shell menu.
Figure 33. JACE system shell menu (serial shell or Telnet access)
NPM6E System Shell ------------------------------------------------------------------------- hostid: Qnx-NPM6E-0000-153C-6E44 serial number: 441634 build version: 2.5.33 build date: built on 2011-12-12 15:10:37 system time: Mon Jan 16 13:57:25 DST 2011 niagara daemon port: 3011 en0: inet 192.168.1.121 netmask 0xffffff00 broadcast 192.168.1.255 inet6 fe80::201:f0ff:fe8d:7a44%en0 prefixlen 64 scopeid 0x2 en1: <disabled> ------------------------------------------------------------------------- 1. Update System Time 2. Update Network Settings 3. Ping Host 4. Enable/Disable Ftp 5. Enable/Disable Telnet 6. Update Platform Account 7. Reboot L. Logout Enter choice:
To select a menu option, type the associated number (1 to 7) or “L” for logout, then press Enter. For example, choose Update Network Settings to recover IP access, or to set the IP settings of a new JACE.
Use this menu option to access most of the same IP networking options as available in the platform TCP/IP Configuration view (see TCP/IP configuration). When selected, you are prompted for each setting sequentially, starting with hostname (Figure 34).
Figure 34. Update Network Settings example in JACE system shell
JACE Network Configuration Utility Enter new value, '.' to clear the field or '<cr>' to keep existing value Hostname <NPM6E-441634> : J603_T Domain <Workgroup> : Primary DNS Server <> : 68.87.73.246 Secondary DNS Server <> : 68.87.71.230 Route <192.168.1.1> : Primary IPv6 DNS Server <> : Secondary IPv6 DNS Server <> : IPv6 Route <> : NET1 Ethernet interface IP address (clear to use DHCP) <192.168.1.121> : 192.168.1.66 Subnet mask <255.255.255.0> : Enable IPv6 addressing on this adapter? (Y/n) : n Enable NET2 interface? (Y/n) : n Confirm new configuration Hostname : J603_T Domain : Workgroup Default Gateway : 192.168.1.1 Primary DNS : 68.87.73.246 Secondary DNS : 68.87.71.230 Default IPv6 Gateway : Primary IPv6 DNS : Secondary IPv6 DNS : NET1 settings: IP Address : 192.168.1.66 Subnet Mask : 255.255.255.0 IPv6 Addressing disabled NET2 disabled Save these settings? (Y/n) :