# Using the Options Tab

Click the Options tab to reach the checkboxes that control ticket and view options. The Options tab has two panels. Use the View Options panel to choose which information is displayed for your tickets. Use the Ticket Options panel to turn MIT Kerberos's automatic features on or off.

Scroll down to browse information about both panels, or jump to a section by clicking a link below.

Learn about.... | How to....
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View Options Ticket Options | Use the View Options Panel Use the Ticket Options Panel

## Using the View Options Panel

Click the Options tab at the top of the ribbon menu and look to the left to find the View Options panel. View Options control which ticket information columns are displayed in the main window.

Select a checkbox to show the information column in the main window. Deselect it to hide the column. Some options are selected by default. For example, "Valid Until" is selected by default, so the main window shows the Valid Until column showing when your tickets will expire.
How to: View Tickets

## View Options

Checkbox | Select to...
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| Issued

See the date and time your ticket was originally obtained.

| Renewable Until

See the date and time that your renewable tickets expire completely and cannot be renewed. After this time you must get new tickets to access services authenticated by Kerberos.

If this column shows Not Renewable, the ticket was not flagged as renewable when you obtained it.

Related Help:

- About: Renewable Tickets
- How to: Renew Tickets
- About: Ticket Settings and Flags

| Valid Until

See when your ticket will expire. Note that you cannot renew a ticket if you let it expire.

Kerberos alerts you to expiring tickets with a warning in a pop up window. To add an audible warning, select the Expiration Alarm checkbox in the Ticket Options panel.
How to: Use Ticket Options Panel

| Encryption Type

See the encryption type used to encrypt each session key and ticket. This can be useful when troubleshooting.

Kerberos supports multiple types of encryption. The type used for a particular ticket or session key is automatically negotiated when you request a ticket or a service.
About: Encryption Types

| Flags

See how the tickets were flagged (renewable and/or fowardable) when you obtained them.

You cannot change the flags on existing tickets. If you need a ticket with different flags, you must get a new ticket.
About: Ticket Settings and Flags

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## Using the Ticket Options Panel

Click the Options tab at the top of the ribbon menu and look to the right to find the Ticket Options panel. Ticket Options control MIT Kerberos's automatic features.

Select a Ticket Option checkbox to turn that feature on. Deselect it to turn the feature off.

## Ticket Options

Checkbox | Select to...
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| Automatic Ticket Renewal

Automatically renew tickets flagged as renewable, without promptings or requiring a password, until the renewal lifetime is reached.

Renewing your tickets allows you to run batch jobs without interruption and to work through a long session without continually reentering your password.
About: Renewable Tickets

Note: Automatic ticket renewal will not work if you exit MIT Kerberos or if your machine is in hibernation mode.

| Expiration Alarm

Have MIT Kerberos provide an audible alarm 15, 10, and 5 minutes before your tickets expire.

Regardless of whether this option is on, MIT Kerberos alerts you to expiring tickets at the same intervals with pop up window. However, the pop up window will not always be visible on a busy desktop.
About: Ticket Expiration

| Destroy Tickets on Exit

Have MIT Kerberos destroy your tickets when you exit the program.

Turning this option on provides greater security. However, you will need to turn this off if you want to exit MIT Kerberos while leaving processes running which require your valid tickets.

| Allow Mixed Case Realm Name

Use a Kerberos realm with lower case letters in its name.

Kerberos realms are a way of logically grouping resources and identities that use Kerberos. By convention, realm names use all upper case letters. This helps distinguish a realm from the DNS domain it corresponds to. Realm names are case sensitive. So for convenience, anything you enter in the realm field of the Get Ticket window is converted to upper case, unless you turn this option on.

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