freebsd cable disconnected problem

[Diogo Della]

I figure this out.

I don't know why. Somebody could explain me ....

But the problem is that the machine could not reach the DNS server configured at /etc/resolv.conf. If the default router is configured or not, the FreeBSD box could not reach the DNS server.

No problem with this, but why when a DNS is configured the machine can not run ssh or ftp localhost or from a remote host.

Thanks.

Diogo Della

De:owner-freebsd-questions at freebsd.org

Para:"freebsd-questions" freebsd-questions at freebsd.org

Cópia:

Data:Mon, 6 Jun 2005 14:32:17 -0300

Assunto:Re: freebsd cable disconnected problem

> Yes, the localhost go to this IP.
> 
> This machine has 3 NIC with 3 different IP address. If the onboard sis0 is not connected, ssh or ftp 127.0.0.1 does not work.
> 
> Other machines has the same problem, but a llitle different. In other FreeBSD, if a make any modifications like include a default gateway on the routing table, it does not work.
> 
> Is there any security issue or something like?
> 
> Thanks.
> 
> Diogo Della
> 
> On May 26, 2005, at 4:07 PM, Diogo Della wrote:
> > It is very strange: if a put the initial ip address of the 
> > interface and disconnect the cable "ssh localhost" does not work. 
> > But, if a let this running and put the cable again, "ssh localhost" 
> > works.
> >
> > What is going on? FreeBSD need to be connected and with the same ip 
> > address I set at installation for the network deamon to work?
> 
> Does localhost actually go to IP 127.0.0.1?
> Do you have a localhost route, check "netstat -nr"...?
> 
> You can also take a look at what your daemons are binding to via:
> "netstat -anp TCP | grep LISTEN". Are they binding to *.port or 
> otherwise?
> 
> -- 
> -Chuck
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