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|Oracle Solaris Administration: IP Services Oracle Solaris 10 1/13 Information Library|
One of the first signs of trouble on a network is a loss of communications by one or more hosts. If a host does not to come up at all the first time that the host is added to the network, the problem might be in one of the configuration files. The problem might also be a faulty network interface card. If a single host suddenly develops a problem, the network interface might be the cause. If the hosts on a network can communicate with each other but not with other networks, the problem could lie with the router. Or, the problem could be in another network.
You can use the ifconfig command to obtain information on network interfaces. Use the netstat command to display routing tables and protocol statistics. Third-party network diagnostic programs provide a number of troubleshooting tools. Refer to third-party documentation for information.
Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.
For syntax and information about the netstat command, refer to Monitoring Network Status With the netstat Command and the netstat(1M) man page.
For information about the /etc/inet/hosts database, refer to hosts Database and the hosts(4) man page. For information about the /etc/inet/ipnodes database, refer to ipnodes Database and the ipnodes(4) man page.
For syntax and information about telnet, refer to the telnet(1) man page.
# ps -ef | grep inetd
The following output verifies that the inetd daemon is running:
root 57 1 0 Apr 04 ? 3:19 /usr/sbin/inetd -s
# ps -ef | grep in.ndpd
The following output verifies that the in.ndpd daemon is running:
root 123 1 0 Oct 27 ? 0:03 /usr/lib/inet/in.ndpd