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IBM Tivoli Access Manager for e-business: WebSEAL Administration ...

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Lightweight<br />

Third<br />

Party<br />

Authentication<br />

cache<br />

[ltpa-cache]<br />

stanza<br />

ltpa-cache-enabled<br />

=<br />

{yes|no}<br />

Enables<br />

or<br />

disables<br />

the<br />

Lightweight<br />

Third<br />

Party<br />

Authentication<br />

cache.<br />

A<br />

value<br />

of<br />

yes<br />

enables<br />

caching.<br />

A<br />

value<br />

of<br />

no<br />

disables<br />

caching.<br />

This<br />

stanza<br />

entry<br />

is<br />

required.<br />

Default<br />

value:<br />

yes<br />

Example:<br />

ltpa-cache-enabled<br />

=<br />

yes<br />

ltpa-cache-size<br />

=<br />

number_of_entries<br />

Integer<br />

value<br />

indicating<br />

the<br />

number<br />

of<br />

entries<br />

allowed<br />

in<br />

the<br />

LTPA<br />

cache.<br />

The<br />

value<br />

must<br />

be<br />

greater<br />

than<br />

or<br />

equal<br />

to<br />

zero.<br />

Zero<br />

means<br />

that<br />

there<br />

is<br />

no<br />

limit<br />

on<br />

the<br />

size<br />

of<br />

the<br />

LTPA<br />

cache.<br />

This<br />

is<br />

not<br />

recommended.<br />

<strong>WebSEAL</strong><br />

does<br />

not<br />

impose<br />

a<br />

maximum<br />

value.<br />

Choose<br />

your<br />

maximum<br />

value<br />

to<br />

stay<br />

safely<br />

within<br />

the<br />

bounds<br />

of<br />

your<br />

available<br />

system<br />

memory.<br />

See<br />

the<br />

discussion<br />

of<br />

maximum<br />

values<br />

<strong>for</strong><br />

integer<br />

types<br />

in<br />

“Guidelines<br />

<strong>for</strong><br />

configuring<br />

stanzas”<br />

on<br />

page<br />

378.<br />

This<br />

stanza<br />

entry<br />

is<br />

required,<br />

but<br />

is<br />

ignored<br />

when<br />

LTPA<br />

caching<br />

is<br />

disabled.<br />

Default<br />

value:<br />

4096<br />

Example:<br />

ltpa-cache-size<br />

=<br />

4096<br />

ltpa-cache-entry-lifetime<br />

=<br />

number_of_seconds<br />

Integer<br />

value<br />

that<br />

specifies<br />

the<br />

lifetime,<br />

in<br />

seconds,<br />

of<br />

a<br />

LTPA<br />

cache<br />

entry.<br />

The<br />

value<br />

must<br />

be<br />

greater<br />

than<br />

or<br />

equal<br />

to<br />

zero<br />

(0).<br />

A<br />

value<br />

of<br />

0<br />

means<br />

that<br />

entries<br />

are<br />

not<br />

removed<br />

from<br />

the<br />

LTPA<br />

cache<br />

due<br />

to<br />

their<br />

entry<br />

lifetime<br />

being<br />

exceeded.<br />

However,<br />

they<br />

may<br />

still<br />

be<br />

removed<br />

due<br />

to<br />

either<br />

the<br />

ltpa-cache-size<br />

being<br />

exceeded<br />

or<br />

the<br />

ltpa-cache-entry-idle-timeout<br />

stanza<br />

entry<br />

being<br />

exceeded.<br />

<strong>WebSEAL</strong><br />

does<br />

not<br />

impose<br />

a<br />

maximum<br />

value.<br />

See<br />

the<br />

discussion<br />

of<br />

maximum<br />

values<br />

<strong>for</strong><br />

integer<br />

types<br />

in<br />

“Guidelines<br />

<strong>for</strong><br />

configuring<br />

stanzas”<br />

on<br />

page<br />

378<br />

This<br />

stanza<br />

entry<br />

is<br />

required,<br />

but<br />

is<br />

ignored<br />

when<br />

LTPA<br />

caching<br />

is<br />

disabled.<br />

Default<br />

value:<br />

3600<br />

Example:<br />

ltpa-cache-entry-lifetime<br />

=<br />

3600<br />

ltpa-cache-entry-idle-timeout<br />

=<br />

number_of_seconds<br />

Appendix<br />

A.<br />

<strong>WebSEAL</strong><br />

configuration<br />

file<br />

reference<br />

469

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