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 ns.EU.net.
 eunet.be. name server dns.eunet.be.
 

Similar information can be displayed using the dig command, which gives additional information about how records are stored in the name server.

To check if a host is alive, use ping . If your system is configured to send more than one packet, interrupt ping with the Ctrl +C key combination:


   

 
[emmy@pc10 emmy]$ ping a.host.be 
 PING a.host.be (1.2.8.3) from 80.20.84.26: 56(84) bytes of data.
 64 bytes from a.host.be(1.2.8.3):icmp_seq=0 ttl=244 time=99.977msec
 --- a.host.be ping statistics ---
 1 packets transmitted, 1 packets received, 0% packet loss
 round-trip min/avg/max/mdev = 99.977/99.977/99.977/0.000 ms
 

To check the route that packets follow to a network host, use the traceroute command:


   

 
[emmy@pc10 emmy]$ /usr/sbin/traceroute www.eunet.be
 traceroute to www.eunet.be(193.74.208.177),30 hops max,38b packets
 1 blob (10.0.0.1) 
 0.297ms 0.257ms 0.174ms
 2 adsl-65.myprovider.be (217.136.111.1) 
 12.120ms 13.058ms 13.009ms
 3 194.78.255.177 (194.78.255.177) 
 13.845ms 14.308ms 12.756ms
 4 gigabitethernet2-2.intl2.gam.brussels.skynet.be (195.238.2.226)
 13.123ms 13.164ms 12.527ms
 5 pecbru2.car.belbone.be (194.78.255.118) 
 16.336ms 13.889ms 13.028ms
 6 ser-2-1-110-ias-be-vil-ar01.kpnbelgium.be (194.119.224.9)
 14.602ms 15.546ms 15.959ms
 7 unknown-195-207-939.eunet.be (195.207.93.49) 
 16.514ms 17.661ms 18.889ms
 8 S0-1-0.Leuven.Belgium.EU.net (195.207.129.1) 
 22.714ms 19.193ms 18.432ms
 9 dukat.Belgium.EU.net (193.74.208.178) 22.758ms * 25.263ms
 

Specific domain name information can be queried using the whois command, as is explained by many whois servers, like the one below:


   

 
[emmy@pc10 emmy]$ whois cnn.com
 [whois.crsnic.net]
 
 Whois Server Version 1.3
 
 	$<--snap server message-->
 
 Domain Name: CNN.COM
 Registrar: NETWORK SOLUTIONS, INC.
 Whois Server: whois.networksolutions.com
 Referral URL: http://www.networksolutions.com
 Name Server: TWDNS-01.NS.AOL.COM
 Name Server: TWDNS-02.NS.AOL.COM
 Name Server: TWDNS-03.NS.AOL.COM
 Name Server: TWDNS-04.NS.AOL.COM
 Updated Date: 12-mar-2002
 >>> Last update of whois database: Fri, 5 Apr 2002 05:04:55 EST <<<
 
 The Registry database contains ONLY .COM, .NET, .ORG, .EDU domains
 and Registrars.
 
 [whois.networksolutions.com]
 
 $<--snap server message-->
 
 Registrant:
 Turner Broadcasting (CNN-DOM)
 1 CNN Center
 Atlanta, GA 30303
 
 Domain Name: CNN.COM
 
 Administrative Contact:
 $<--snap contactinfo--> 
 Technical Contact:
 $<--snap contactinfo--> 
 Billing Contact:
 	$<--snap contactinfo-->
 Record last updated on 12-Mar-2002.
 Record expires on 23-Sep-2009.
 Record created on 22-Sep-1993.
 Database last updated on 4-Apr-2002 20:10:00 EST.
 
 Domain servers in listed order:
 
 TWDNS-01.NS.AOL.COM		149.174.213.151
 TWDNS-02.NS.AOL.COM		152.163.239.216
 TWDNS-03.NS.AOL.COM		205.188.146.88
 TWDNS-04.NS.AOL.COM		64.12.147.120
 

For other domain names than .com, .net, .org and .edu, specify the whois server, such as this one for .be domains:

whois domain.be@whois.dns.be


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