Yeah, it's still a problem. However, if you like to run irssi, you can enable perl in ISPConfig panel (system > server config > your_server >...
This solves the problem. Thanks!
How to add a new command to jailkit? (solved) Hello everyone! I'm using ISPConfig 3.0.2.1 on a Debian 5.0 sever since few weeks, it does it's job...
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