Black Box LES1432A, LES1332A, LES1408A, LES144BA Additional plug-ins, Number of supported devices

check_serial_signals is used to monitor the handshaking lines on the serial ports check_port_log is used to monitor the data logged for a serial port.

10.4.3 Additional plug-ins

Additional Nagios plug-ins (listed below) are available for Advanced Console Servers (LES1208A-R2, LES1216A-R2, LES1232A, LES1248A-R2:

check_apt	check_by_ssh	check_clamd	check_dig
check_dns	check_dummy	check_fping	check_ftp
check_game	check_hpjd	check_http	check_imap
check_jabber	check_ldap	check_load	check_mrtg
check_mrtgtraf	check_nagios	check_nntp	check_nntps
check_nt	check_ntp	check_nwstat	check_overcr
check_ping	check_pop	check_procs	check_real
check_simap	check_smtp	check_snmp	check_spop
check_ssh	check_ssmtp	check_swap	check_tcp
check_time	check_udp	check_ups	check_user

You can download these plug-ins from the Nagios plug-ins package from www.blackbox.com. You can also download and run bash scripts (primarily check_log.sh).

To configure additional checks, save the downloaded plug-in program in the tftp addins directory on the USB flash and save the downloaded text plug-in file in /etc/config

To enable these new additional checks, select Seria l& Network: Network Port, then Edit the Network Host you want to monitor, and select New Checks. The additional check option is included in the updated Nagios Checks list, and you can again customize the arguments.

10.4.4 Number of supported devices

Ultimately the number of devices that by any particular console server can support depends upon the number of checks made, and how often they are performed. Access method will also play a part. The table below shows the performance of three of the console servers:

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