Recently I try to install SmokePing (tar ball) on Centos 7, for my company to check Network latency, but same error re-occur. Multiple Errors: Then I search a lot, try to install the packages but the problem still appear, then after I found a simple solution. Solution: # perl -MCPAN -eshell Terminal does not support AddHistory. cpan shell -- CPAN exploration and modules installation (v1.9800) Enter 'h' for help. cpan[1]> install Net::OpenSSH Reading '/root/.cpan/Metadata' Database was generated on Sat, 03 Sep 2016 21:53:30 GMT Running install for module 'Net::OpenSSH' Running make for S/SA/SALVA/Net-OpenSSH-0.73.tar.gz Fetching with LWP: http://cpan.communilink.net/authors/id/S/SA/SALVA/Net-OpenSSH-0.73.tar.gz Fetching with LWP: http://cpan.communilink.net/authors/id/S/SA/SALVA/CHECKSUMS Checksum for /root/.cpan/sources/authors/id/S/SA/SALVA/Net-OpenSSH-0.73.tar.gz ok Scanning cache /root/.cpan/build for sizes ................