CICS Transaction Gateway V5 The WebSphere ... - IBM Redbooks

216 CICS Transaction Gateway V5
2. We checked that the user ID we were going to use to log into the FTP service
was not listed in the file /etc/ftpusers. This file defines users who are not
allowed to log into the FTP service.
3. We used the command /etc/init.d/inetd restart to restart the inetd
daemon, the output of which is shown in Example 9-2.
Example 9-2 Restarting the inetd daemon
root@vmlinux1:/etc > /etc/init.d/inetd restart
Shutting down inetd done
Starting inetd done
Note: Here we enabled the proftpd FTP server daemon. We could have
enabled one of the other FTP server daemons in the inetd configuration file,
for example in.ftpd, but we preferred proftpd because it is more configurable.
The Red Hat Package Manager
Before showing how we installed the CICS TG, we should first explain how it is
installed onto Linux using the Red Hat Package Manager (RPM).
The Red Hat Package Manager is a powerful package manager, present on
many Linux distributions, which can be used to install, query, update, and
uninstall individual software packages. A package consists of an archive of files
and package information, including name, version and description. The Red Hat
Package Manager maintains a database of software packages installed onto the
system, which users can interact with using the rpm command.
When the CICS TG install process is run, the rpm command is used to install the
CICS TG onto the system. Once the CICS TG is installed, rpm can be used to
display, among other things, details of the CICS TG and where it is installed. It is
also used to uninstall the CICS TG.
Transferring the CICS TG files to Linux
The CICS TG is supplied as an rpm file called ctg-5.0.0-1l.s390.rpm, which must
be uploaded onto the Linux file system.
We transferred it directly to the /tmp directory on our Linux system. Example 9-3
shows the transcript of our FTP session. Note that we used binary mode for the
transfer, as we did not want FTP to perform data conversion on the tar archive.
Example 9-3 Example FTP upload session
C:\temp>ftp vmlinux1.itso.ibm.com
Connected to vmlinux1.itso.ibm.com.
220 ProFTPD 1.2.2rc2 Server (powered by SuSE Linux) [vmlinux1.itso.ibm.com]