Get:1 http://security.ubuntu.com lucid-security Release.gpg [198B]
Ign http://security.ubuntu.com/ubuntu/ lucid-security/main Translation-en_US
Get:2 http://archive.ubuntu.com lucid-updates Release.gpg [198B]
Ign http://archive.ubuntu.com/ubuntu/ lucid-updates/main Translation-en_US
Get:3 http://security.ubuntu.com lucid-security Release [57.3kB]
Get:4 http://archive.ubuntu.com lucid-updates Release [57.3kB]
Get:5 http://security.ubuntu.com lucid-security/main Packages [419kB]
Get:6 http://archive.ubuntu.com lucid-updates/main Packages [619kB]
Fetched 1,153kB in 8s (142kB/s)
Reading package lists... Done
w@w:~$ sudo apt-get install nmap
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package nmap