| packages/nixpkgs/perl540Packages.NetPing | Check a remote host for reachability |
| packages/nixpkgs/perl540Packages.NetAsyncPing | Asyncronously check remote host for reachability |
| packages/nixpkgs/perl540Packages.DataValidateDomain | Domain and host name validation |
| packages/nixpkgs/perl540Packages.LWPUserAgentDNSHosts | Override LWP HTTP/HTTPS request's host like /etc/hosts |
| packages/nixpkgs/perl540Packages.URISmartURI | Subclassable and hostless URIs |
| packages/nixpkgs/perl540Packages.AnyEventFastPing | Quickly ping a large number of hosts |
| packages/nixpkgs/perl540Packages.SysHostnameLong | Try every conceivable way to get full hostname |