1. Network Tools TCP/IP interface configuration query - MAC (HW) address and IP address – Linux - /sbin/ifconfig – MS Windows – ipconfig/all 1

2. MAC – IP address resolution - finding the MAC address of a „Net-neighbours“ arp utility - display the content of ARP cache (ARP table) 2 Network Tools

3. IP host reachability test – ping [hostname]. Measuring the round-trip time for messages sent from the originating host to a destination computer. 3 Network Tools

4. Routing table display – Linux - route – MS Windows – route print – Linux, MS Windows - netstat -r 4

5. Diagnostic tool for displaying the route (path) and measuring transit delays of packets across an IP network. – Linux – traceroute [hostname] – MS Windows – tracert [hostname] 5 Network Tools

6. Query Internet name servers interactively or non- interactively (DNS lookup utility) – nslookup (Linux, MS Windows) Network Tools 6

7. DNS query sites http://who.is/dns/ http://dnsquery.org/ https://www.easywhois.com/ 7 Domain Name System (DNS) Network Tools

8. Secure transfer file from/to a remote host – Linux – scp [[user@]host1:]file1 [[user@]host2:]file2 – MS Windows – winscp program Logging to the remote host – Linux – ssh [user@]hostname [command] – MS Windows – putty program 8

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