How to Perform Basic Network Software Checking

1. Use the netstat command to display network information.

   The netstat command displays a variety of useful information for troubleshooting network connectivity issues. The type of information that is displayed depends on the options that you use. See Monitoring Network Status With the netstat Command in Administering TCP/IP Networks, IPMP, and IP Tunnels in Oracle Solaris 11.2 and the netstat (1M) man page.

2. Check the hosts database to ensure that all of the entries are correct and current.

   For more information about the /etc/inet/hosts database, see the hosts (4) man page.

3. Try to connect to the local host by using the telnet command.

   For more information, see the telnet (1) man page.

4. Ensure that the inetd network daemon is running.

   # /usr/bin/pgrep inetd
   883

   The previous output indicates that the inetd daemon is running on the system with the process ID 883.

5. If IPv6 is enabled on your network, verify that the in.ndpd daemon is running.

   # /usr/bin/pgrep in.ndpd
   822

   The previous output indicates that the inetd daemon is running on the system with the process ID 882.

6. Check the system's router and routing information.
   • Display a system's persistent route as follows:

     # route -p show

     See Troubleshooting Issues When Adding a Persistent Route.

   • Display the configuration that is in the routing table as follows:

     # netstat -nr