I'm using library sshj. This library use slf4j for logs, but Liferay based on log4j. How to configure Liferay project for print logs from sshj.
EDIT: My problem is not a slf4j in my liferay portlet. But library, which I'm using, working on slf4j. So, after few atempts, I have logs from ssh, but it is only info level logs, but I need debug level logs. When I try change logs level in liferay interfaces, it's not working.