Il motivo e` che non hai servizi configurati in modo che siano avviati da xinet. Io ho provato ad avviarlo, e in /var/log/messages ho ottenuto May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/chargen [file=/etc/xinetd.conf] [line=26]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/chargen-udp [file=/etc/xinetd.d/chargen-udp] [li
ne=14]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/cups-lpd [file=/etc/xinetd.d/cups-lpd] [line=15]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/daytime [file=/etc/xinetd.d/daytime] [line=11]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/daytime-udp [file=/etc/xinetd.d/daytime-udp] [li
ne=14]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/echo [file=/etc/xinetd.d/echo] [line=15]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/echo-udp [file=/etc/xinetd.d/echo-udp] [line=14]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/netstat [file=/etc/xinetd.d/netstat] [line=15]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/rsync [file=/etc/xinetd.d/rsync] [line=16]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/sane-port [file=/etc/xinetd.d/sane-port] [line=1
2]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/servers [file=/etc/xinetd.d/servers] [line=14]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/services [file=/etc/xinetd.d/services] [line=14]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/swat [file=/etc/xinetd.d/swat] [line=14]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/systat [file=/etc/xinetd.d/systat] [line=12]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/time [file=/etc/xinetd.d/time] [line=17]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/time-udp [file=/etc/xinetd.d/time-udp] [line=15]
May 7 09:26:00 orodruin xinetd[24092]: Reading included configuration file: /etc/xinetd.d/vnc [file=/etc/xinetd.d/vnc] [line=15]
May 7 09:26:00 orodruin xinetd[24092]: removing chargen
May 7 09:26:00 orodruin xinetd[24092]: removing chargen
May 7 09:26:00 orodruin xinetd[24092]: removing printer
May 7 09:26:00 orodruin xinetd[24092]: removing daytime
May 7 09:26:00 orodruin xinetd[24092]: removing daytime
May 7 09:26:00 orodruin xinetd[24092]: removing echo
May 7 09:26:00 orodruin xinetd[24092]: removing echo
May 7 09:26:00 orodruin xinetd[24092]: removing netstat
May 7 09:26:00 orodruin xinetd[24092]: removing rsync
May 7 09:26:00 orodruin xinetd[24092]: removing sane-port
May 7 09:26:00 orodruin xinetd[24092]: removing servers
May 7 09:26:00 orodruin xinetd[24092]: removing services
May 7 09:26:00 orodruin xinetd[24092]: removing swat
May 7 09:26:00 orodruin xinetd[24092]: removing systat
May 7 09:26:00 orodruin xinetd[24092]: removing time
May 7 09:26:00 orodruin xinetd[24092]: removing time
May 7 09:26:00 orodruin xinetd[24092]: removing vnc1
May 7 09:26:00 orodruin xinetd[24092]: removing vnc2
May 7 09:26:00 orodruin xinetd[24092]: removing vnc3
May 7 09:26:00 orodruin xinetd[24092]: removing vnchtt*d1
May 7 09:26:00 orodruin xinetd[24092]: removing vnchtt*d2
May 7 09:26:00 orodruin xinetd[24092]: removing vnchtt*d3
May 7 09:26:00 orodruin xinetd[24092]: 24092 {init_services} no services. Exiting...
Quindi, prima di avviare xinet devi andare in /etc/xinet.d/ e abilitare i servizi che ti interessano (modificando il relativo file e impostando disable = no. Poi puoi far partire xinet.