Today I encountered a problem with jwhois.
The problem is that it doesn't respond at all. It just queries the given or predefined host and gives no other output after this. Here are a few examples:
18:39:22 schwarz@f455-5:~ $>whois google.com [Querying whois.denic.de] ^C 18:39:58 schwarz@f455-5:~ $>whois -h whois.denic.de -- "-T dn google.com" [Querying whois.denic.de] ^C 18:51:21 schwarz@f455-5:~ $>whois -h whois.webhosting.info google.com [Querying whois.webhosting.info] [Unable to connect to remote host] 18:54:58 schwarz@f455-5:~ $>whois -h whois.internic.net google.com [Querying whois.internic.net]
As you can see, I also tried a few other hosts I found online, but it didn't work at all. Might be useful to know: I'm sitting in the facility of a university, though I have no influence on the firewall or everything like that.