On Fri 28 Aug 2015 at 10:01:59 +0000, Curt wrote: > On 2015-08-28, David Wright <deb...@lionunicorn.co.uk> wrote: > > > > $ host localhost > > Host localhost not found: 3(NXDOMAIN) > > $ ping localhost > > PING localhost (127.0.0.1) 56(84) bytes of data. > > 64 bytes from localhost (127.0.0.1): icmp_req=1 ttl=64 time=0.032 ms > > curty@einstein:~$ host localhost > localhost has address 127.0.0.1 > localhost has IPv6 address ::1
To complete the picture: brian@desktop:~$ dig -x 127.0.0.1 ; <<>> DiG 9.9.5-9-Debian <<>> -x 127.0.0.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7146 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;1.0.0.127.in-addr.arpa. IN PTR ;; ANSWER SECTION: 1.0.0.127.in-addr.arpa. 10800 IN PTR localhost. ;; Query time: 24 msec ;; SERVER: 158.152.1.43#53(158.152.1.43) ;; WHEN: Fri Aug 28 12:03:15 BST 2015 ;; MSG SIZE rcvd: 74 host and dig use only the DNS. Elimar's suggestion to use 'host $(hostname)' will work if hostname is a FQDN. But it shouldn't (or wouldn't) be on a stock Debian system.