1@node VTY shell 2@comment node-name, next, previous, up 3@chapter VTY shell 4 5@command{vtysh} is integrated shell of Zebra software. 6 7To use vtysh please specify ---enable-vtysh to configure script. To use 8PAM for authentication use ---with-libpam option to configure script. 9 10vtysh only searches @value{INSTALL_PREFIX_ETC} path for vtysh.conf which 11is the vtysh configuration file. Vtysh does not search current 12directory for configuration file because the file includes user 13authentication settings. 14 15Currently, vtysh.conf has only one command. 16 17@example 18! 19username foo nopassword 20! 21@end example 22 23With this set, user foo does not need password authentication for user vtysh. 24With PAM vtysh uses PAM authentication mechanism. 25 26If vtysh is compiled without PAM authentication, every user can use vtysh 27without authentication. 28