Cisco Network Registrar

Introduction

This document provides the process for changing the log size and the number of logs for the DNS, DHCP, and TFTP servers in Cisco Network Registrar. The procedure is different depending on the CNR version used:

• For CNR 3.5.x and earlier the mcdadmin utility is used.

• For CNR 5.0.x and above, the CLI server [DNS|DHCP|TFTP] serverLogs command is used.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

The information in this document applies to all CNR versions.

Note: In CNR 6.1 the process of changing the number and size of the log files for the DNS, DHCP and TFTP servers only applies to the Local Cluster, not the Regional Server.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

For more information on document conventions, refer to the Cisco Technical Tips Conventions.

CNR 3.5.x and Earlier

Follow these steps to change the log size and the number of logs for the DNS, DHCP, and TFTP servers in Cisco Network Registrar:

1. Stop the Network Registrar service.

2. Create a file named biglogs.txt containing these lines:

   [ config/clusters/1/trampolines/1/servers/1 ]
   load_args = str:"-A nlogs=5 -A logsize=10000000"
   [ config/clusters/1/trampolines/1/servers/2 ]
   load_args = str:"-A nlogs=5 -A logsize=10000000"
   [ config/clusters/1/trampolines/1/servers/4 ]
   load_args = str:"-A nlogs=5 -A logsize=10000000"
   

   The servers are internally designated as follows:

   • servers/1—DNS server—name_dns_1_log.x files

   • servers/2—DHCP server—name_dhcp_1_log.x files

   • servers/3—UI—logs are not required

   • servers/4—TFTP server—file_tftp_1_log.x files

   Note: The x file extension is 01, 02, and so on, and increments up to the total number of files you specify.

3. Run the mcdadmin utility to include the file:

   > mcdadmin -N admin -P password -o -i biglogs.txt
   

4. Restart the Network Registrar service.

CNR 5.0.x and Above

Follow these steps to change the log size and the number of logs for the DNS, DHCP, and TFTP servers in Cisco Network Registrar:

1. Start the nrcmd program and check your current values as follows:

   nrcmd> server DNS serverLogs show
   100 Ok
   nlogs=3
   logsize=100000
   

   Note:  The serverLogs action is new to the server command in Network Registrar 5.0 and is not available in prior releases. You can set from 1 to 100 log files and a range of file sizes from 10 KB to 500 MB.

2. Perform the same show command for the DHCP and TFTP servers. Then, adjust the settings as follows:

   nrcmd> server DNS serverLogs nlogs=5 logsize=10M
   nrcmd> server DHCP serverLogs nlogs=5 logsize=10M
   nrcmd> server TFTP serverLogs nlogs=5 logsize=10M
   100 Ok
   

3. For changes to take effect, save (or exit).

4. Restart the Network Registrar service.

Stopping and Starting the Network Registrar Service

CNR 6.0.x and Earlier

Follow these steps to stop or start the Network Registrar Service:

• Solaris, Linux—/etc/init.d/aicservagt [stop|start]

• Windows—From a DOS command line

  1. Type net [stop|start]

  2. Select "AIC Server Agent 2.0"

CNR 6.1

Follow these steps to stop or start the Network Registrar Service:

• Solaris, Linux—/etc/init.d/nwreglocal [stop|start]

• Windows—From a DOS command line, type net [stop|start] nwreglocal

Related Information

• CLI Reference Guide "server" Command
• Troubleshooting DHCP Problems in Cable Networks using Cisco Network Registrar Debugs
• Technical Support - Cisco Systems