[hcoop/zz_old/debian/djbdns.git] / debian / djbdns-man / dnsname.1

.TH dnsname 1

.SH NAME
dnsname \- does a reverse lookup for the IP address

.SH SYNOPSIS
.B dnsname 
.I a.b.c.d

.SH DESCRIPTION
.B dnsname
does a reverse lookup for the IP address
.IR a.b.c.d .
It prints the first domain name for that address.
If no domain names are listed in DNS,
.B dnsname
prints a blank line.
You can list several IP addresses;
.B dnsname
prints each result on a separate line.

There is also a
.BR dnsfilter (1)
program
that reads IP addresses from its input
and performs many reverse lookups in parallel.

Normally 
.B dnsname
exits 0.
If 
.B dnsname
encounters a temporary problem
that prevents it from determining the domain name,
it prints an error message and exits 111.

.SH SEE ALSO
dnsip(1),
dnsipq(1),
dnsmx(1),
dnstxt(1),
dnsqr(1),
dnsq(1),
dnstrace(1)

http://cr.yp.to/djbdns.html
Commit	Line	Data
b4588d5c GP	1	.TH dnsname 1
	2
	3	.SH NAME
	4	dnsname \- does a reverse lookup for the IP address
	5
	6	.SH SYNOPSIS
	7	.B dnsname
	8	.I a.b.c.d
	9
	10	.SH DESCRIPTION
	11	.B dnsname
	12	does a reverse lookup for the IP address
	13	.IR a.b.c.d .
	14	It prints the first domain name for that address.
	15	If no domain names are listed in DNS,
	16	.B dnsname
	17	prints a blank line.
	18	You can list several IP addresses;
	19	.B dnsname
	20	prints each result on a separate line.
	21
	22	There is also a
	23	.BR dnsfilter (1)
	24	program
	25	that reads IP addresses from its input
	26	and performs many reverse lookups in parallel.
	27
	28	Normally
	29	.B dnsname
	30	exits 0.
	31	If
	32	.B dnsname
	33	encounters a temporary problem
	34	that prevents it from determining the domain name,
	35	it prints an error message and exits 111.
	36
	37	.SH SEE ALSO
	38	dnsip(1),
	39	dnsipq(1),
	40	dnsmx(1),
	41	dnstxt(1),
	42	dnsqr(1),
	43	dnsq(1),
	44	dnstrace(1)
	45
	46	http://cr.yp.to/djbdns.html