Obtaining remote system contacts

Suppose that the administrator notices several local connection attempts to a restricted service (such as NNTP, the USENET News Transfer Protocol) from an unknown host. The administrator can use snmpstat to gather information about that host, provided the unknown host is running SNMP.

The following example shows the commands the administrator might use.

Verifying the origin of a network connection

   # snmpstat paris public
   

   Active Internet connections
   Proto  Local Address    Foreign Address      (state)
   tcp    paris.nntp       bach.CS.ESU.EDU.1021 ESTABLISHED
   

   # snmpstat -s bach.CS.ESU.EDU
   

   System Group
   Description: SNMPD VERSION 9.4.0.0 SUN 3/260 - SUNOS3.5
   ObjectID: SNMP_Research_UNIX_agent.9.4.0.3
   UpTime: 4 days, 15 hours, 56 minutes, 39 seconds, 74 hundredths
   Contact: Operations 1-999-555-1040
   Name: bach.CS.ESU.EDU
   Location: Comp Center
   Services: applications, end-to-end

See also:

• ``Modifying SNMP variables''

• ``Viewing SNMP status''

• ``Using SNMP to correct problems''

• ``Removing an incorrect routing entry''

• ``Marking an interface down''

• ``Removing an incorrect ARP entry''