hi list I have instaled a dns server (FC4) as a master on utic.rnu.tn domain on the server , I don t succeed to resolv the hist ordi1.utic.rnu.tn How ever, on an other host (xtrem) , I can resolv this host . do you have an idea of what this problem could be thanks ON THE SERVER [root@localhost named]# hostname localhost.localdomain [root@localhost named]# ping ordi1.utic.rnu.tn ping: unknown host ordi1.utic.rnu.tn [root@localhost named]# ON THE HOST [root@xtrem ~]# hostname xtrem [root@xtrem ~]# ping ordi1.utic.rnu.tn PING ordi1.utic.rnu.tn (193.95.34.232) 56(84) bytes of data. 64 bytes from 193.95.34.232: icmp_seq=0 ttl=64 time=0.048 ms 64 bytes from 193.95.34.232: icmp_seq=1 ttl=64 time=0.030 ms --- ordi1.utic.rnu.tn ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 5022ms rtt min/avg/max/mdev = 0.030/0.039/0.048/0.009 ms, pipe 2 [root@xtrem ~]#