Network Services


/etc/inetd.conf
/etc/tcp (OpenServer)
sacadm (UnixWare and Legend)
/etc/rc*.d/*
Disable any services which you do not require
Use tcp_wrappers or ipfilter to provide greater access and logging on any enabled network services
Check what services are running by using netstat and a network sniffer like netcat
Check what rpc services are running using rpcinfo