host does not resolve names to addresses anymore
I wish to follow my previous append on name resolution problems.
I think I have simplified the issue a lot. This is the current
situation.
Holding my breath until somebody saves me 8-> .....
TIA
--
Robert J. Alexander <rja@raleigh.ibm.com>
AIX Certified System Administrator - Debian Linux addict - Win.\* victim
Via Sciangai, 53 - 00144 Rome, Italy
I am going crazy on a name resolution problem.
Dunno exactly what I goofed ...
My host command does not resolve names (name to address) anymore ... keeps resolving reverse (address to name).
Building info offline and sending all data I can think of in hope some superior being will help me understand ...
Thank you in advance. Bob Alexander <bob@inorbit.com>
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I am running a disconnected machine with a Debian slink linux with a 2.0.34 kernel.
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bob@localhost >hostname
localhost
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bob@localhost >cat /etc/hosts
127.0.0.1 localhost loopback
9.87.2.151 pan pan.ncrome.romesc.italy.ibm.com
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bob@localhost >host 127.0.0.1
Name: localhost
Address: 127.0.0.1
Aliases: loopback
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bob@localhost >host 9.87.2.151
Name: pan
Address: 9.87.2.151
Aliases: pan.ncrome.romesc.italy.ibm.com
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bob@localhost >host localhost
Nameserver not running
localhost A record not found, try again
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bob@localhost >host pan
Nameserver not running
pan A record not found, try again
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bob@localhost >host pan.ncrome.romesc.italy.ibm.com
Nameserver not running
pan.ncrome.romesc.italy.ibm.com A record not found, try again
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/etc/resolv.conf -> I removed it ... even tried a len 0 ...
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bob@localhost >cat /etc/nsswitch.conf
hosts: files dns
passwd: db files
group: db files
shadow: db files
networks: files
protocols: db files
services: db files
ethers: db files
rpc: db files
netgroup: db files
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bob@localhost >cat /etc/host.conf
order hosts,bind
multi on
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each time I do a failing query such as "host pan" in /var/log/syslog I see
appearing lines such as the following:
Aug 12 16:32:24 localhost icmplogd: destination unreachable from localhost [127.0.0.1]
but of course a ping to my loopback succeeds:
PING 127.0.0.1 (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=1.7 ms
--- 127.0.0.1 ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 1.7/1.7/1.7 ms
and my ifconfig command returns:
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:96 errors:0 dropped:0 overruns:0 frame:0
TX packets:96 errors:0 dropped:0 overruns:0 carrier:0
Collisions:0
iptraf, upon giving a "host localhost" command type gives this info:
UDP from 127.0.0.1:1076 to 127.0.0.1:domain on lo
UDP from 127.0.0.1:1076 to 127.0.0.1:domain on lo
ICMP dest unreach (port) from 127.0.0.1 to 127.0.0.1 on lo
ICMP dest unreach (port) from 127.0.0.1 to 127.0.0.1 on lo
Played with the /etc/hosts.allow and deny ... nothing changed.
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On Debian the host command is coming from the dnsutils package:
bob@localhost >dpkg -s dnsutils
Package: dnsutils
Status: install ok installed
Priority: standard
Section: net
Installed-Size: 482
Maintainer: Bdale Garbee <bdale@gag.com>
Source: bind
Version: 1:8.1.2-2
Conflicts: netstd (<< 2.00)
Description: Utilities for querying the DNS
This package includes the "nslookup", "dig", and "host" programs
for querying information from the Domain Name System (DNS). It
also includes several short aliases (mx, ns, soa, zone, aaaa)
for querying specific information.
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root@localhost > dpkg -s libc6
Package: libc6
Status: install ok installed
Priority: required
Section: base
Installed-Size: 1505
Maintainer: Dale Scheetz <dwarf@polaris.net>
Source: glibc
Version: 2.0.7t-1
Pre-Depends: ldso (>= 1.8.10-1)
Conflicts: libc5 (<< 5.4.33-7), libpthread0 (<< 0.7-10)
Description: The GNU C library version 2 (run-time files).
Includes shared libraries needed to run programs.
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I had bind (8.1) installed in a slave config but now removed it to make things more clear. stopped it with ndc stop, purged the package, rebooted, removed any trace I could find. ps aux | grep named returns nil
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If I connect (network card or slip) to my network of course I will normally use another nameserver without problems.
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I cannot think of any other data I might provide .... just mention that thank you to El Nino I am tackling this problem with a 37degC (99degF) air temperature.
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