Why can it no do it? How may I detect what is wrong? Is there any logs? At /home/admispconfig/ispconfig/ispconfig.log nothing interesting.
Is the user in question in /etc/passwd and /etc/shadow? Did you enable shell access for the user? You have to enable shell access for the web itself and in addition to that for each user of that web that needs shell access!
Of course, I add user test (clients section) with Shell Access, CGI Scripts, SSI and FTP Access. But it is not at system :'-( [root@studik www]# id test id: test: No such user [root@studik www]#
Don't your users have aprefix like web1_? E.g. web1_test? Did you enable shell access for that user on the tab "User & Email"?