Lantronix EPS2-100 EPS Reference Manual - Page 56
Preventing Access Until DSR Is Asserted, Automatic Logouts
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Security Ports 5.3.2 Preventing Access Until DSR Is Asserted The Signal Check characteristic can be used to prevent remote connections to a port unless DSR is asserted. This is often used to prevent Telnet logins to a port until the device attached to the port (for example, a terminal) asserts the DSR signal, indicating that it is connected and powered on. Figure 5-14: Enabling Signal Check Local>> DEFINE PORT 3 SIGNAL CHECK ENABLED 5.3.3 Automatic Logouts Ports can be configured to log out automatically when the DSR signal is dropped. Ports can also be configured to log out automatically or when they've been inactive for a specified period of time. 5.3.3.1 DSRlogout When a device connected to the Server is disconnected or powered off, the DSR signal is dropped. To configure a port to log out when this happens, use the Set/Define Port DSRlogout command. Figure 5-15: Enabling Dsrlogout Local>> DEFINE PORT 1 DSRLOGOUT ENABLED Normally, DSR must be enabled on a port for it to automatically log out when the device it is attached to is turned off or disconnected. When DSRlogout is enabled, the Server will log out the port's user if either of these cases occurs. 5.3.3.2 Inactivity Logout To configure a port to log out after a specified period of inactivity, use the Set/Define Port Inactivity Logout command. This command works in conjunction with the Set/Define Server Inactivity Timer command, which defines an inactivity limit as a particular number of minutes. After the timer period has elapsed, a port with Inactivity Logout enabled will be considered inactive and automatically logged out. Figure 5-16: Enabling Inactivity Logout Local>> DEFINE PORT 1 INACTIVITY LOGOUT ENABLED Local>> DEFINE SERVER INACTIVITY TIMER 500 5-6