apt-cache search libnet-ssh lists the following: 
libnet-ssh-gateway-ruby - Transitional package for ruby-net-ssh-gatewa
+y
libnet-ssh-gateway-ruby1.8 - Transitional package for ruby-net-ssh-gat
+eway
libnet-ssh-gateway-ruby1.9.1 - Transitional package for ruby-net-ssh-g
+ateway
libnet-ssh-multi-ruby - Transitional package for ruby-net-ssh-multi
libnet-ssh-multi-ruby1.8 - Transitional package for ruby-net-ssh-multi
libnet-ssh-multi-ruby1.9.1 - Transitional package for ruby-net-ssh-mul
+ti
libnet-ssh-perl - Perl extension for secure shell
libnet-ssh-ruby1.8 - Transitional package for ruby-net-ssh
libnet-ssh2-perl - Perl module for the SSH 2 protocol
libnet-ssh2-ruby - Transitional package for ruby-net-ssh
libnet-ssh2-ruby1.8 - Transitional package for ruby-net-ssh
libnet-ssh2-ruby1.9.1 - Transitional package for ruby-net-ssh
ruby-net-ssh - Ruby implementation of the SSH protocol
ruby-net-ssh-gateway - Ruby library for tunneling connections to serve
+rs with ssh
ruby-net-ssh-multi - Ruby library for making multiple SSH connections 
+to remote systems

[download]
sooo... the easy way to do this is sudo apt-get install libnet-ssh-perl, unless the packaged version is too far behind for you.

In reply to Re: installing Net::SSH::Perl on ubuntu by jellisii2
in thread installing Net::SSH::Perl on ubuntu by varalaxmibbnl

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