> I'd like to connect to a remote machine running DB2 8.1 using Perl
> from a machine running OS X.
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> I could check this myself, but is it possible to connect via Java - or
> is it not possible because I'm not able to register my machine/node .
IBM does not provide a DB2 client for Mac OS X (boo!).
Which means, anything (like DBD::DB2, PHP, Ruby, etc.) that requires
a full DB2 client will not work.
Your only option for DB2 connectivity is to use the Type-4 Universal
JDBC driver (in db2jcc.jar), because the Type-4 driver is, by
definition, fully-native java code.