Hello everyone,
I'm needing some assistance with one of my course assignments. Below I have included the assignment description. I'm running my terminal on Ubuntu 9.04 (Jaunty), on a virtual machine.
Using the terminal in Linux, display the configured interfaces. Complete the following:
- Use the commands "ifconfig," "ifup," and "ifdown" to stop and start the network interface.
- Provide screenshots.
- Run the command "ping ctuonline.com."
- Run the command "nslookup google.com."
- Provide screenshots.
- Explain the usage of the commands "ifconfig," "ifup," "ifdown," "nslookup," and "ping." Provide examples of how they can be used to troubleshoot networking issues.
- Explain the use of File Transfer Protocol (FTP), Domain Name System (DNS), and Secure Shell (SSH) applications on a Linux server.
Below, I have included the code I've configured so far. I don't know where I am going wrong with this. Especially with my ifup, ifdown, ping and nslookup commands.
I don't know why my ping and nslooup commands are not working properly with my designated sites, "ctuonline" and "google". If someone could please explain this it would be a huge help!
I am not exactly certain how to get fix this and my assignment is due by tomorrow.
Any help would be greatly appreciated!
Thank you
seed@seed-desktop:~$ ifconfig -a
eth8 Link encap:Ethernet HWaddr 08:00:27:65:05:ad
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.255.255.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:31 errors:0 dropped:0 overruns:0 frame:0
TX packets:31 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2077 (2.0 KB) TX bytes:2077 (2.0 KB)
pan0 Link encap:Ethernet HWaddr 36:d4:f0:a3:65:4f
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
seed@seed-desktop:~$ ifup
ifup: Use --help for help
seed@seed-desktop:~$ ifdown
ifdown: Use --help for help
seed@seed-desktop:~$ ping
www.ctuonline.com
^C
seed@seed-desktop:~$ nslookup
www.google.com
^C