FAQ – Page 12 – Eclipse Systems Knowledge Base

How do I update my Eclipse credit card service to use the new TSYS domain?

Here are instructions for updating the URL with which your Vital/TSYS credit card service is configured to process transactions. This change is necessary for continued successful integrated credit card processing. After March 31^st, 2012, Vital/TSYS is retiring the current domain. For more information, please refer to their bulletin on the subject.

The new domain, ssl1.tsysacquiring.net, is already available. You should adjust your credit card service to use the new domain using the directions below at any point prior to March 31, 2012 to avoid service disruption. If your network infrastructure limits connectivity to specific domains, you must update your network configuration to allow secure connectivity to the new domain.

If you no longer process credit card transactions integrated through Eclipse, or have migrated to the Element solution (or plan to do so before March 31, 2012), these instructions do not apply.

Log into the Windows server that runs the credit card service.
To open the appropriate configuration file for editing, click Start, select Run, and enter the following path:
```
"C:\Program Files\Eclipse\Eclipse Credit card authorization service\CCService.ini"
```

Change the “URL=” value to:

URL=ssl1.tsysacquiring.net/scripts/gateway.dll?Transact

Select File and Save before closing the text editor
To launch the Management Console’s Services control panel, click Start, select Run, and enter:
```
services.msc
```
Right-click on the Eclipse Credit Card Authorization Service, and select Restart.

If you have any questions or issues with these instructions, please enter a Service Request with our Systems team for assistance.

How do I launch a root shell from within Eterm?

It is sometimes useful to spawn a UNIX shell from within an Eterm session. Here is the procedure:

From within your active Eclipse session in Eterm
Press F2
Press T to launch the TCL shell
Type the following to launch a UNIX shell:
```
sh
```
Type the following to escalate the shell to superuser (root) mode:
```
su -
```
Enter the root user’s password when prompted
You are now at the root (#) prompt
To exit, type:
```
exit
exit
```
Press ESC at the TCL (;) prompt

Note: the user logged into Eclipse must have access to TCL, and you must know the root password.

For further reference, view a screencast of this procedure.

How do I fix a blank VNC session?

If you find yourself facing a blank VNC session, try restarting the VNC service. Log in to the server as root and run:

service vncserver restart

After the service has restarted, you should be able to return to a fully-functional VNC session.

This behavior typically results from a VNC user accidentally logging out of the GNOME desktop interface instead of simply disconnecting the VNC session.

Where can I find training resources for Linux?

The Internet is a veritable treasure trove of Linux educational resources, but here are a few that we’ve hand-picked as especially useful.

Google

First, Google it. Linux is so widely deployed that most common administration issues have been encountered, resolved and written about by others.

Manuals

Red Hat provides a bunch of useful manuals on their public RHEL documentation site. While a bit out-dated, the Introduction to System Administration is an especially good guide.

Blogs

There are many Linux “howto” blogs on the Internet that cover common (and not so common) administration tasks. One of the better blogs is nixCraft (aka cyberciti.biz).

Books

While there are a myriad of books available on RHEL administration, one of the most comprehensive is Michael Jang’s “RHCSA/RHCE Red Hat Linux Certification Study Guide”. While targeted towards certification-seekers, this tome covers just about everything you’ll need to know about Linux administration in a single, inexpensive volume.

Computer-Based Training

For those who learn better visually, Michael Jang has also put together a virtual CBT course covering RHEL administration topics. Each section is presented with both narrated slides and screencasts of demos. While it’s more expensive than the book, it’s also far less expensive than an instructor-led course.

Instructor-Led Training

Red Hat and other 3rd party vendors offer instructor-led training both on-site and via virtual labs. While comparatively expensive, you are offered opportunities to collaborate one-on-one with expert instructors and test out your newfound knowledge in a safe, lab environment.

Eclipse-Specific Administration Training

For Eclipse-specific administration, please refer to the knowledge base or contact our Education team to see if there are any new instructor-led or computer-based training courses available.

How do I limit the size of CUPS log files?

To reduce the size of the CUPS logs:

Back up the existing configuration settings:

cp /etc/cups/cupsd.conf /etc/cups/cupsd.conf.`date +%Y%m%d.%H%M%S`

Open the /etc/cups/cupsd.conf configuration file in your favorite editor (i.e. vim, nano, Gnome editor, etc.).

Locate the MaxLogSize setting, and change it to a smaller value. For example, 100 MB:

MaxLogSize 100m

Restart the CUPS print service to apply the changes:

service cups restart