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G&R

All Gline line handlers accept a parameter -s_ to turn on a session trace. It

records the raw data being exchanged between the line module and the under-

lying transport layer (e.g. OSI Transport, or TCP socket), as well as internal

events and protocol states. It is useful when investigating protocol failures such

as unsuccessful connect attempts or abnormal disconnections.

Structure

The Host Links file structure includes a debug directory to collect the trace and

debug files in one location where the permissions can be adjusted as required

for security. By default only the Host Links administrator can access the

directory. The debug directory is created by the initialization procedure and

located (by default) in:

Windows

server

\gar\debug

UNIX

Linux

/usr/gar/debug

If the application is a client type of application, a debug sub-directory with the

same name as the user (UNIX username or PC login name) is created and all

debug files are located there. This includes the line level trace except in the

special case where the client application connects via Ggate and the line level

trace is written on the Ggate system using the Ggate DSA node name as a

debug sub-directory.

If the application is a server type of application, then a sub-directory will be

created using the DSA node name on behalf of which the server application is

executing. If the server does not use DSA the default local session control name

is still used if there is a dsa.cfg file. If there is no dsa.cfg file then the

system’s UNIX or Windows communications node name is used. You can find

this name using the command uname –n on UNIX systems, or the Network

section of the control panel on Windows systems. This covers situations where

several instances of a server are executing on the same system and accepting

incoming calls to different DSA node names, or where several Host Links

systems using the same server product share a file system.

Gline Line Handlers and Configuration

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Eicon Networks CX1 Installationshandbuch Seite 18