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Howto install sar & ksar system activity info in Centos / Redhat

The sar command collect, report, or save UNIX / Linux system activity information. It will save selected counters in the operating system to the /var/log/sa/sadd file. Fromlinux-logo the collected data, you get lots of information about your server: CPU utilization Memory paging and its utilization Network I/O, and transfer statistics Process creation activity All block […]

Connect Cisco SPA400 SIP Gateway (4 FXO Ports) with Asterisk

On Asterisk /etc/asterisk/sip.conf, you need to configure the account exactly similar to User ID of SPA400 The entries in sip.conf to enable Asterisk register to SPA400 are as follow: [general] register => 9000@192.168.0.6/9000 Replace 9000 with the value you entered in the User ID of SPA400, and replace 192.168.0.2 with the IP address of the […]

Send SNMP Traps from Nagios to Remote Management Host

1. Add ‘send snmp trap’ command to nagios vim /usr/local/nagios/etc/objects/commands.cfg define command{ command_name send_snmptrap command_line /usr/bin/snmptrap -v 2c -c public 10.50.24.34 ” NAGIOS-NOTIFY-MIB::nSvcEvent nSvcHostname s “$HOSTNAME$” nSvcDesc s “$SERVICEDESC$” nSvcStateID i $SERVICESTATEID$ nSvcOutput s “$SERVICEOUTPUT$” } 2. Add this event and enable the event to services which needed to send traps vim /usr/local/nagios/etc/objects/localhost.cfg define service{ […]