102CS 1000 on Linux base
Network and firewall
All applications operate behind a network firewall. The firewall starts on system boot, which invokes the Linux iptables facility to load the firewall configuration.
Each Linux server supports at least two Ethernet ports; one for ELAN subnet connectivity and another for TLAN subnet connectivity. By default, the TLAN is open to the network, while the ELAN is reachable only within the subnet. The Linux application selects the Ethernet port to use. The firewall protects both ports. For a listing of Linux base open firewall ports see Table 1 "Linux base open firewall ports" (page 102). For a definition of ELAN and TLAN see “Network configuration” (page 143).
Use the CLI command basefirewallconfig to configure the network firewall. For a list of Nortel Linux base CLI commands see “ Nortel Linux base CLI commands” (page 139).
Table 1
Linux base open firewall ports
Protocol | Port number or range |
|
|
TCP | 22 |
|
|
UDP | 22 |
|
|
UDP | 53 (to DNS servers only) |
|
|
UDP | 123 |
|
|
UDP | 500 |
|
|
UDP | 514 |
|
|
TCP | 2100 |
|
|
UDP | |
|
|
Note: The port numbers found in Table 1 "Linux base open firewall ports" (page 102) apply only to the Linux base. Linux applications can require different ports. For a list of ports opened for the application see the appropriate application NTP .
Software reliability
Software monitoring
Nortel Communication Server 1000
Linux Platform Base and Applications Installation and Commissioning
29 October 2008
