05-07-2012
The only way the Unix boxes know names is through the hosts files. The servers are on an isolated network (and don't have DNS servers specified in basic network setup) and the Backup server that I am trying to send all the mail thru is dual homed on that network and to the other "internet network". Is there an easy way to tell if we have a DNS server on our network? I do not think we do. I think that everything is windows workgroup and hosts files... Also,could you provide a more in depth explanation of the DNS conflict you speak of? Thanks.
Last edited by herot; 05-07-2012 at 08:38 AM..
10 More Discussions You Might Find Interesting
1. Windows & DOS: Issues & Discussions
Pls could you help me diagnose my problem. I have a system which is a DHCP server and also the Remote Access Server. The DHCP server allocate normal address within the scope range to the LAN system. why it allocates abitrary number such as
169.254.217.90
255.255.0.0 class B address to the remote... (1 Reply)
Discussion started by: kayode
1 Replies
2. UNIX for Dummies Questions & Answers
hi
currently i have a server that is able to send out and receive mail.
is there a way to configure the server such that mails can be sent to a certain domail like abc@yahoo.com but block mails from this domain abc@yahoo.com.
the server is running on solaris 10.
thanks in advance :) (2 Replies)
Discussion started by: legato
2 Replies
3. UNIX for Dummies Questions & Answers
Hi peeps,
I want to learn how to configure mail servers, I am in private network, I am running debian 4.0, practically I have tried courier-mta, courier-imap, postfix, and sendmail.
sometimes I am able to send mail and not able to connect to my imap server which is localhost, sometimes I am... (1 Reply)
Discussion started by: squid04
1 Replies
4. IP Networking
Hi all - i currently run a domain strifex.net. This domain has a dedicated IP address and in having that, should be able to run a ventrilo VoIP server from it. I uploaded all the needed files etc... and am able to connect to it, if and only if i enable DMZ to my local machine - then i am able to... (1 Reply)
Discussion started by: ccfc1986
1 Replies
5. Solaris
Hi All,
Is there any option where in I can assign the two hostname to single system.
Thanks (6 Replies)
Discussion started by: kumarmani
6 Replies
6. Solaris
Sun documentation suggests that we need to assign cryptographic resources to the control domain as part of the initial configuration. I searched the documentation to better understand the purpose of this and know recommendation/limitation. I am doing this for Netra T5220 and wondering if the... (5 Replies)
Discussion started by: StarSol
5 Replies
7. Red Hat
HI All,
I am trying to setup DNS on my centOS server.
I am using bind software to setup DNS.
The following errors have getting.
==================================================
Error in named configuration:
zone localdomain/IN: loaded serial 42
zone localhost/IN: loaded serial 42... (4 Replies)
Discussion started by: phpconnect
4 Replies
8. UNIX for Dummies Questions & Answers
Hi ,
I have a domain contoso.com, which is created by Windows AD, i have a linux server which i want to join to this domain.
Linux server-: RHEL 5.3
******Info of the windows domain*************
AD server- Windows 2008 r2 server.
Please help me to join this linux server to the windows... (2 Replies)
Discussion started by: shroh
2 Replies
9. Solaris
Hi,
All of our servers run Solaris (currently 10, but looking to upgrade to 11). In each of our offices we have a server configured as a Primary Domain Controller via Samba to provide naming services to our Windoze users. I would like to continue with that arrangement, but I would also like... (2 Replies)
Discussion started by: wgkorb
2 Replies
10. UNIX for Dummies Questions & Answers
Hi All,
Need an urgent solution to an issue . We have created a ksh file or shell script which generates 1 DAT file. the DAT file contains extract of a select statement .
Now the issue is , when we are executing the ksh file , the output is coimng with page breaks and line breaks .
We have... (4 Replies)
Discussion started by: Ayaskant
4 Replies
HOSTS(5) Linux Programmer's Manual HOSTS(5)
NAME
hosts - static table lookup for hostnames
SYNOPSIS
/etc/hosts
DESCRIPTION
This manual page describes the format of the /etc/hosts file. This file is a simple text file that associates IP addresses with hostnames,
one line per IP address. For each host a single line should be present with the following information:
IP_address canonical_hostname [aliases...]
Fields of the entry are separated by any number of blanks and/or tab characters. Text from a "#" character until the end of the line is a
comment, and is ignored. Host names may contain only alphanumeric characters, minus signs ("-"), and periods ("."). They must begin with
an alphabetic character and end with an alphanumeric character. Optional aliases provide for name changes, alternate spellings, shorter
hostnames, or generic hostnames (for example, localhost).
The Berkeley Internet Name Domain (BIND) Server implements the Internet name server for UNIX systems. It augments or replaces the
/etc/hosts file or hostname lookup, and frees a host from relying on /etc/hosts being up to date and complete.
In modern systems, even though the host table has been superseded by DNS, it is still widely used for:
bootstrapping
Most systems have a small host table containing the name and address information for important hosts on the local network. This is
useful when DNS is not running, for example during system bootup.
NIS Sites that use NIS use the host table as input to the NIS host database. Even though NIS can be used with DNS, most NIS sites still
use the host table with an entry for all local hosts as a backup.
isolated nodes
Very small sites that are isolated from the network use the host table instead of DNS. If the local information rarely changes, and
the network is not connected to the Internet, DNS offers little advantage.
FILES
/etc/hosts
NOTES
Modifications to this file normally take effect immediately, except in cases where the file is cached by applications.
Historical Notes
RFC 952 gave the original format for the host table, though it has since changed.
Before the advent of DNS, the host table was the only way of resolving hostnames on the fledgling Internet. Indeed, this file could be
created from the official host data base maintained at the Network Information Control Center (NIC), though local changes were often
required to bring it up to date regarding unofficial aliases and/or unknown hosts. The NIC no longer maintains the hosts.txt files, though
looking around at the time of writing (circa 2000), there are historical hosts.txt files on the WWW. I just found three, from 92, 94, and
95.
EXAMPLE
127.0.0.1 localhost
192.168.1.10 foo.mydomain.org foo
192.168.1.13 bar.mydomain.org bar
146.82.138.7 master.debian.org master
209.237.226.90 www.opensource.org
SEE ALSO
hostname(1), resolver(3), resolver(5), hostname(7), named(8)
Internet RFC 952
COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2002-06-16 HOSTS(5)