[CentOS] nc not working as advertised
Gerry Reno
greno at verizon.net
Fri Mar 8 00:12:59 UTC 2013
On 03/07/2013 07:09 PM, Robert Moskowitz wrote:
> On 03/07/2013 06:30 PM, Keith Keller wrote:
>> On 2013-03-07, Robert Moskowitz <rgm at htt-consult.com> wrote:
>>> On 03/07/2013 05:06 PM, Paul Heinlein wrote:
>>>> On Thu, 7 Mar 2013, Robert Moskowitz wrote:
>>>>
>>>>> I can't get nc to do anything worthwhile. In fact I can't even get the
>>>>> examples in the manpage to work. From either my C6 servers or my F17
>>>>> notebooks. For example:
>>>>>
>>>>> echo -n "GET / HTTP/1.0\r\n\r\n" | nc medon.htt-consult.com 80
>>>> You mean
>>>>
>>>> echo -ne "GET ..."
>>>>
>>>> right?
>>> No. I did a simple copy from the manpage. check it out yourself. :(
>> The man page may be incorrect. You need -e in order to get echo to
>> print out the line feeds properly:
> I did try with "echo -ne" and that worked. the man page IS incorrect.
> Guess I have to submit a bug report.
>
>> Did you also try the client/server example in the man page (which looks
>> correct to me)?
> The localhost loopback works.
>
> Ah, I just figured out my between systems problem. I was testing across
> subnets, and the port I was using is not allowed over ipv6, I only have
> an ipv4 rule for it. gumble. Corollary #2 of Murphy's Law: "It is
> always something."
>
> Now back to it. I think I figured out my HIP testing problems; it has
> to do with the HIPFW options... Always firewalls, it seems.
>
>
Rule #1. When testing turn off the firewall.
.
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