if ping, traceroute, telnet and some similar tool reports "unknown host" but nslookup can resolve dns query for a specific host. got some idea?
here's some infos: CONNECTIVITY TEST ---ping--- #ping mu1 ping: unknown host mu1 ---ping--- ---ping via ip--- #ping mu1 PING 203.172.17.178 (203.172.17.178) from 203.172.17.180 : 56(84) bytes of data. 64 bytes from 203.172.17.178: icmp_seq=0 ttl=255 time=424 usec 64 bytes from 203.172.17.178: icmp_seq=1 ttl=255 time=283 usec ---ping via ip--- DNS TEST ---nslookup--- #nslookup mu1 Server: 203.172.17.178 Address: 203.172.17.178#53 mu1.mu.edu.ph canonical name = mu.edu.ph. Name: mu.edu.ph Address: 203.172.17.178 ---nslookup--- ---dig--- #dig mu1 ; <<>> DiG 9.2.0rc3 <<>> mu1 ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 43953 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;mu1. IN A ;; AUTHORITY SECTION: . 10800 IN SOA A.ROOT-SERVERS.NET. NSTLD.VERISIGN-GRS.COM. 2003031401 1800 900 604800 86400 ;; Query time: 2794 msec ;; SERVER: 203.172.17.178#53(203.172.17.178) ;; WHEN: Fri Mar 14 15:54:27 2003 ;; MSG SIZE rcvd: 96 ---dig--- CONFIG ---/etc/resolv.conf--- search mu.edu.ph nameserver 203.172.17.178 ---/etc/nsswitch.conf--- passwd: files pgsql shadow: files pgsql group: files pgsql hosts: files nisplus dns bootparams: nisplus [NOTFOUND=return] files ethers: files netmasks: files networks: files protocols: files rpc: files services: files netgroup: nisplus publickey: nisplus automount: files nisplus aliases: files nisplus -- Regards, Howard. H o w a r d R. B a g c a t WebAdmin, MUWeb - Edition 4 Project <http://www.mu.edu.ph> Systems Programmer, RBT/RBK & MUMC Project Misamis University.Ozamiz City.Philippines tel: 088.521.0367.local.109 | cel: 63.0919.5536179 Imagination is more important than knowledge -Albert Einstein Sulat @MU v.2.2 (Fresh) ....................................................................................... An extended module for MUWeb4 Project of Howard R. Bagcat Powered by GNU General Public License softwares. http://my.mu.edu.ph - a personalized portal is soon to come. _ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] Fully Searchable Archives With Friendly Web Interface at http://marc.free.net.ph To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
