Eu configurei um servidor DNS em Centos6.5 e seu trabalho com todas as máquinas clientes que não o Ubuntu, agora eu tenho problema com o Ubuntu Enquanto eu estou tentando ping da máquina desktop para o servidor DNS como ping masterdns.arrivu.local eu não posso ping seu retorno o como
sysadmin@localhost:~$ ping masterdns.arrivu.local
ping: unknown host masterdns.arrivu.local
Mas enquanto eu estou ping com o endereço IP está funcionando
sysadmin@localhost:~$ ping 192.168.1.15 -c 3
PING 192.168.1.15 (192.168.1.15) 56(84) bytes of data.
64 bytes from 192.168.1.15: icmp_seq=1 ttl=64 time=0.450 ms
64 bytes from 192.168.1.15: icmp_seq=2 ttl=64 time=0.445 ms
64 bytes from 192.168.1.15: icmp_seq=3 ttl=64 time=0.265 ms
--- 192.168.1.15 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.265/0.386/0.450/0.089 ms
Mesmo eu verifiquei usando o host seu retorno do IP
sysadmin@localhost:~$ host masterdns.arrivu.local
masterdns.arrivu.local has address 192.168.1.15
Meu problema é que eu quero ping e ssh usando o nome do host em vez de ip como abaixo
ping masterdns.arrivu.local ssh [email protected]
IM usando a máquina desktop com o Ubuntu
sysadmin@localhost:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
Meu ip da área de trabalho é 192.168.1.99
Enquanto eu fiz uma escavação na minha área de trabalho recebi a resposta do DNS
sysadmin@localhost:~$ dig masterdns.arrivu.local
; <<>> DiG 9.9.5-3-Ubuntu <<>> masterdns.arrivu.local
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3101
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;masterdns.arrivu.local. IN A
;; ANSWER SECTION:
masterdns.arrivu.local. 86400 IN A 192.168.1.15
;; AUTHORITY SECTION:
arrivu.local. 86400 IN NS secondarydns.arrivu.local.
arrivu.local. 86400 IN NS masterdns.arrivu.local.
;; ADDITIONAL SECTION:
secondarydns.arrivu.local. 86400 IN A 192.168.1.51
;; Query time: 3 msec
;; SERVER: 192.168.1.15#53(192.168.1.15)
;; WHEN: Mon May 12 10:45:42 IST 2014
;; MSG SIZE rcvd: 124
NSlookup também funcionou
sysadmin@localhost:~$ nslookup arrivu.local
Server: 192.168.1.15
Address: 192.168.1.15#53
Name: arrivu.local
Address: 192.168.1.15
Name: arrivu.local
Address: 192.168.1.51
Name: arrivu.local
Address: 192.168.1.155
Name: arrivu.local
Address: 192.168.1.84
Name: arrivu.local
Address: 192.168.1.99
Name: arrivu.local
Address: 192.168.1.50
Name: arrivu.local
Address: 192.168.1.145
Informações da interface da minha área de trabalho
sysadmin@localhost:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
auto br0
iface br0 inet static
address 192.168.1.99
network 192.168.1.0
netmask 255.255.255.0
broadcast 192.168.1.255
gateway 192.168.1.1
dns-nameservers 192.168.1.15 192.168.1.51
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
sysadmin @ localhost: ~ $ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.15
nameserver 192.168.1.51
search arrivu.local
Não há iptables implantados em máquinas desktop ou o que estou usando como servidor DNS também
[root@masterdns ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Entrada direta de DNS
[root@masterdns named]# cat forward.arrivu
$TTL 86400
@ IN SOA masterdns.arrivu.local. root.arrivu.local. (
2014051001 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
@ IN NS masterdns.arrivu.local.
@ IN NS secondarydns.arrivu.local.
@ IN A 192.168.1.15
@ IN A 192.168.1.51
@ IN A 192.168.1.155
@ IN A 192.168.1.84
@ IN A 192.168.1.99
@ IN A 192.168.1.50
@ IN A 192.168.1.145
masterdns IN A 192.168.1.15
secondarydns IN A 192.168.1.51
client IN A 192.168.1.155
sukumar IN A 192.168.1.84
babin IN A 192.168.1.99
server IN A 192.168.1.50
test IN A 192.168.1.145
ENTRADA reversa do DNS
[root@masterdns named]# cat reverse.arrivu
$TTL 86400
@ IN SOA masterdns.arrivu.local. root.arrivu.local. (
2014051001 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
@ IN NS masterdns.arrivu.local.
@ IN NS secondarydns.arrivu.local.
@ IN PTR arrivu.local.
masterdns IN A 192.168.1.15
secondarydns IN A 192.168.1.51
client IN A 192.168.1.155
sukumar IN A 192.168.1.84
babin IN A 192.168.1.99
server IN A 192.168.1.50
test IN A 192.168.1.145
15 IN PTR masterdns.arrivu.local.
51 IN PTR secondarydns.arrivu.local.
155 IN PTR client.arrivu.local.
84 IN PTR sukumar.arrivu.local.
99 IN PTR babin.arrivu.local.
50 IN PTR server.arrivu.local.
145 IN PTR test.arrivu.local.
guie-me para arrumar amigos