Hi, dear all, I am rather new to Unix and have this problem where I cant seem to ping from 1 host to another. The scenerio is as follows: -
1 QNX host->Eth->1 SCO host
the SCO host is configured with it's IP
the QNX host is configured with another IP
both in the same domain, ie, 172.20.3.XX... (3 Replies)
The problem I am facing now is that the QNX host could not ping the SCO host and vice versa. They are in the same domain, ie, 172.20.3.xx. As I am very new to Unix, I guess I must have missed out some important steps. Pls help... Thanx alot (2 Replies)
hello to everyone, i was wondering if you could help me with a script im working on, it's kind of simple but i dont have a lot experience on unix comands: well, here it is:
you might apreciate the infinite while loop :D, it is supossed to be running on the server all day scaning it every 5... (12 Replies)
Hi
A) I am able to send eMail using mailx from a UNIX ( solaris 8 ) host to my Outlook-email-ID : FName.Surname@Citigroup.com ( This is NOT my actual -eMail-ID). But in Outlook the "From :" eMail address is displayed as
" usr1@unix-host1.unregistered.email.citicorp.com " .i.e the words... (2 Replies)
Hello,
I have a problem - I created a chrooted jail for one user. When I'm logged in as root, everything work fine, but when I'm logged in as a chrooted user - I have many problems:
1. When I execute the command ping, I get weird results:
bash-3.00$ usr/sbin/ping localhost ... (4 Replies)
Hi All,
I'm doing one script on Juniper router where you have one FreeBSD Shell:
Is pinging from time to time one ethernet port of othere router and in case of fail is blocking one port entering in CLI and doing some command:
If I run this script all is working perfectly, but if I run in... (1 Reply)
Hello
I have a server in it.siroe.com
I added it.siroe.com in /etc/resolv.conf.
I still can't ping the server.
any service to restart here?
any other file to edit?
thx (4 Replies)
Hi,
I have a weird problem.
when ever I do ping command like for example
ping unix.comI get the following message:
# ping unix.com
ping: unknown host unix.com
but when I use host the computer is able to know the host.
# host unix.com
unix.com has address 81.17.242.186
unix.com mail is... (2 Replies)
Hi All,
I have the requirement where am pinging the server and matching the IP address with the existing IP address. Below code is returning me the IP address and my requirement is i have to see that also whether it is pinging or not
PING useipapd01 (172.22.32.87) 56(84) bytes of data.
64... (1 Reply)
Actually. I was getting a ping to remote host failed for one of my etherchannel. When I checked it was in backup adapter and again I use to faileover and brought to primary channel.
But it was again going to backup channel and giving me the alert ping to remotehost failed. When I checked the load... (3 Replies)
Discussion started by: Mohamed Thamim
3 Replies
LEARN ABOUT PLAN9
hosts
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
# The following lines are desirable for IPv4 capable hosts
127.0.0.1 localhost
# 127.0.1.1 is often used for the FQDN of the machine
127.0.1.1 thishost.mydomain.org thishost
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
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
SEE ALSO hostname(1), resolver(3), host.conf(5), resolv.conf(5), resolver(5), hostname(7), named(8)
Internet RFC 952
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 HOSTS(5)