Mục đích chính của cơ sở hạ tầng để cung cấp kết nối với thế giới bên ngoài và Internet. Ngoài ra, nó thường cố gắng để cung cấp một biện pháp dự phòng trong trường hợp của bất cứ liên kết nào thiết bị hoặc mạng không thành công. | Security 83 Main Menu info - Information Menu stats - Statistics Menu exit - Exit global command always available Main WebOS does not prompt you for a username only a password. This is true even with SSH access. The password you give will determine which account you log into. Because of this every account s password must be unique. The default password for the user account is user so this should also be changed using the command usrpw. You will be asked for the admin password to change the user account password User Access Control usrpw Changing USER password validation required. Enter current administrator password Enter new user password Re-enter new user password New user password accepted. User Access Control To enable an account simply supply it with a password. Inversely to disable an account make the password null which automatically disables the account. Encrypted Access As of Version and later the AD4 and 184 models of Alteon Web switches provide the means to employ SSH for command-line administration. Earlier models such as the AD3 and 180E do not have SSH capabilities because they do not have sufficient memory to hold SSH capabilities in flash. Configuration of SSH can be done only at the console serial port. To enable SSH go into the SSHD configuration menu in cfg sys sshd Main cfg sys sshd SSHD Menu intrval - Set Interval for generating the RSA server key scpadm - Set SCP-only admin password hkeygen - Generate the RSA host key skeygen - Generate the RSA server key ena - Enable the SCP apply and save dis - Disable the SCP apply and save 84 Chapter 8 Alteon WebSystems on - Turn SSH server ON off - Turn SSH server OFF cur - Display current SSH server configuration SSHD on Current status OFF New status ON Execute the apply command and all of the necessary keys will be generated SSHD apply RSA host key generation starts . RSA host key generation completes lasts 113898 ms RSA host key is being saved to Flash ROM please don t reboot the box immediately. .
