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Using Command Line Programs “icmon” and “wdispmon” Locate this document in the navigation structure


You can monitor and manage both the SAP Web dispatcher and the Internet Communication Manager (ICM) from the command line program. You use program icmon for the ICM, and wdispmon for the SAP Web Dispatcher.


Both programs have exactly the same functions. To make things simple the following sections refer always to icmon, but all functions are valid for wdispmon too. Two programs are required to ensure the release/patch level and codepage can be used for the ICM or Web Dispatcher, for the case that they have different release statuses.


We recommend that you use the Web Administration Interface and ICM Monitor for administration of the Web Dispatcher and ICM. Only use the command line programs if this is not possible.

The most important functions of icmon are described below.


The SAP Web dispatcher or ICM is running. In the following, <profile> refers to the name of the profile file with which the SAP Web Dispatcher or ICM was started.

You are logged on at operating system level to the computer where the Web dispatcher or ICM is running.


If you started program icmon with cmon pf=<profile>, you will see configuration and statistical data of the SAP Web Dispatcher, and a snapshot of the thread activity.

Some of the functions that you may need are described below in brief.


The trace file of the SAP Web Dispatcher is called dev_webdisp and is located in the directory of the SAP Web Dispatcher. You can change the trace level using signals or the icmon.

Changing the Trace Level Using Signals

First find out the process ID (PID) of the SAP Web dispatcher. You can then use command kill USR2 <PID des WebDisp> to increase the trace level by one, or kill USR1 <pid> to reduce it. By default, the trace level is set to 1. In Windows you use sapntkill USR2 <pid> or sapntkill USR1 <pid>.

Changing the Trace Level Using icmon

Start icmon with icmon pf=<profile>

To increase the trace level, select +.

To reduce the trace level, select -.

Resetting the Trace File

You can reset the trace file while the system is operating:

  1. Start icmon with icmon pf=<profile>

  2. Choose m. The main menu appears.

  3. Choose m again, and answer the question Do you really want to attach to SAP Web Disp? with y.

  4. Choose r ( reset trace file).


The content of the trace file is then lost and you will see the entry:


Maintaining the Authentication File

You can use icmon -a to maintain the authentication file (default: authfile.txt). If you have confirmed or changed the file name, you will see the menu below:

a - add user to set: Create new user (see below)

c - change password of existing user in set: Change a user's password

g - change group of existing user in set: Change a user's group

x - change client cert data of existing user in set: Change a user's client certificate.

For more information, see: Using the Web Administration Interface with X.509 Certificate

d - delete user from set: Delete a user

l - list users of set: List all users

s - save changes of set to file: Save changes

q - quit (without saving): Quit without saving

m - menu: Go to menu

User for the Web Administration

If you do not have user for the Web administration interface, you can create one with icmon. See Create Administration Users.