Re: "Illegal character(s) in hostname" problem

[Henri Salo <henri () nerv fi>]

On Thu, Apr 02, 2009 at 04:48:29PM +0200, Daniel Roethlisberger wrote:
> Henri Salo <henri () nerv fi> 2009-04-02:
> > I have seen this before. Has there been any patches against this? Do you know why it happens?
> >
> > fgeek@foo:~$ /usr/bin/nmap -P0 -sV 208.53.138.195
> >
> > Starting Nmap 4.85BETA7 ( http://nmap.org ) at 2009-04-02 17:12 EEST
> > Illegal character(s) in hostname -- replacing with '*'
> > <snip>
>
> That IP address has an illegal PTR record in reverse DNS.
> It points to the DNS root node (".").
>
>
> $ dig -x 208.53.138.195
>
> ; <<>> DiG 9.3.5-P2 <<>> -x 208.53.138.195
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10926
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1
>
> ;; QUESTION SECTION:
> ;195.138.53.208.in-addr.arpa.   IN      PTR
>
> ;; ANSWER SECTION:
> 195.138.53.208.in-addr.arpa. 28800 IN   PTR     .
>
> ;; AUTHORITY SECTION:
> 138.53.208.in-addr.arpa. 28800  IN      NS      ns3.fdcservers.net.
> 138.53.208.in-addr.arpa. 28800  IN      NS      ns4.fdcservers.net.
>
> ;; ADDITIONAL SECTION:
> ns4.fdcservers.net.     14399   IN      A       66.90.66.138
>
> ;; Query time: 619 msec
> ;; SERVER: 127.0.0.1#53(127.0.0.1)
> ;; WHEN: Thu Apr  2 16:46:41 2009
> ;; MSG SIZE  rcvd: 124
>
> -- 
> Daniel Roethlisberger
> http://daniel.roe.ch/

Ok. Thank you. Why does Nmap even check the hostname since I was using IP-address?

---
Henri Salo

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