xinetd script to check MySQL availability and replication status

xinetd-mysqlchk

#
# /etc/xinetd.d/mysqlchk
#
service mysqlchk_write
{
        flags           = REUSE
        socket_type     = stream
        port            = 9200
        wait            = no
        user            = nobody
        server          = /opt/mysqlchk_status.sh
        log_on_failure  += USERID
        disable         = no
        only_from       = 172.16.0.0/24 # recommended to put the IPs that need
                                    # to connect exclusively (security purposes)
}

service mysqlchk_read
{
        flags           = REUSE
        socket_type     = stream
        port            = 9201
        wait            = no
        user            = nobody
        server          = /opt/mysqlchk_replication.sh
        log_on_failure  += USERID
        disable         = no
        only_from       = 172.16.0.0/24 # recommended to put the IPs that need
                                    # to connect exclusively (security purposes)
}