Strange entry in the /etc/hosts file

Hi,
While doing some testings with my network this afternoon, I noticed that there's this strange line in my /etc/hosts file:
::1 localhost
Anybody has any idea what the "::1" is for? The only thing related to network that I had recently installed is VPN Tracker. Could it be VPN Tracker that added that line to the hosts file?
Thanks in advance for your help!
Frank
PowerBook G4 Mac OS X (10.4.8)

It's supposed to be there, here's a fresh install's complete hosts file...
# Host Database
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost "
Not sure what it means... may be a 16 bit number though! :-D

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I would like to know which line should be use in the /etc/hosts file:
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user560159 wrote:
Hi There,
I would like to know which line should be use in the /etc/hosts file:
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JThe format for the hosts file is
ipaddress alias1 alias2 alias3 alias4 Most shops will just have two aliases, one with just the machine name, one with the fully qualified domain.machine name. In reality, you can do whatever makes sense:
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# Do not remove the following line, or various programs
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127.0.0.1 localhost.localdomain localhost
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<<<< adding an alias 'fred' >>>>>
[root@vmlnx01 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality wil fail
127.0.0.1 localhost.localdomain localhost fred
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Experts:
I am looking into a /etc/hosts which has something I never saw before.
Every entry in that /etc/hosts file has a format as follows:
123.23.456.678   CHERRY      CHERRY.RIO.COM SID CHERRY.BRAVO.NET
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1) each entry has 2 aliases ;
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Hi,
The nslookup is trying to resolve the address via the DNS. If you are not using a DNS, you cannot resolve this hostname via your local machine.. In order to do that, you should add the entry to your local hosts file.
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Hi all,
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127.0.0.1 localhost
127.0.0.1 localhost.suneel.com suneel.com
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Message was edited by:
suneelgv

Well I tried that option but for some reason it didn't work for me. It kept giving the tns:connection closed error. Then I searched in metalink and found this note : Note:333158.1
It suggested setting tcp.validnode_checking = no
in sqlnet.ora. in
F:\oracle\visdb\9.2.0\network\admin\VIS_websoft-xp
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This is a shot in the dark, but I'll try anyway.
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Experts:
I am looking into a /etc/hosts which has something I never saw before.
Every entry in that /etc/hosts file has a format as follows:
123.23.456.678 CHERRY CHERRY.RIO.COM SID CHERRY.BRAVO.NET
For example:
123.23.456.678 CHERRY CHERRY.RIO.COM PRO CHERRY.BRAVO.NET
Observation:
0) WHY SID (here is PRD) gets into the hosts file? Would it cause some issues?
1) each entry has 2 aliases ;
2) "nslookup CHERRY.RIO.COM "
2a) will return the correct IP address IF I run this nslookup on the server
2b) will say "non-exist domain" on my PC
3) "nslookup CHERRY.BRAVO.NET"
3a) will say "non-exist domain" IF I run nslookup on the server
3b) will give the correct IP address on my PC
Thank you for help.

Hi,
If your system in domain than the entries look like below
192.192.192.192 prdserver prdserver.na.jjjjjjj.com
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Thnaks
Karan

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In Snow Leopard I add a list of ad servers and direct them to 127.0.0.1 via the /ect/host file.
I've configured the host file on my mac mini server and it doesn't work.
i just want to block ads when using browsers ON the Mini.
How can I achieve this?

Yeah; that's an old-time Windows and Unix hack.
There are ad-blocking extensions for all major web browsers, and those are easier to manage and maintain.
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Make nslookup read /etc/hosts file

Dear,
OS: OUL5x64
my nslookup resolve the name thru dns server.
question :
how to make nslookup resolves name through /etc/hosts file.
i do have /etc/resolv.conf and /etc/nsswitch.conf file
here is my nsswitch.conf
/etc/nsswitch.conf
#hosts: db files nisplus nis dns
hosts: files
but it never uses the file to resolve the name.
how can i force it to read /etc/hosts file first
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Perhaps it would help to elaborate on WHY you want nslookup to use the /etc/hosts file?
If you look at the the name of the nslookup utility, it quite probably is an abbreviation of "nameserver lookup". That strongly suggests it is a tool for querying nameservers.
NOT a tool to debug the name lookups of your operating system.
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this is how I lookup what server is set for the utility:
$ nslookup
serverDefault server: 10.0.1.1
Address: 10.0.1.1#53this is how nslookup responds to a query:
nu.nlServer:        10.0.1.1
Address:     10.0.1.1#53
Non-authoritative answer:
Name:     nu.nl
Address: 62.69.184.53
Name:     nu.nl
Address: 62.69.179.198(I don't know how the "jive quote" comes in, it is supposed to be a "bigger than" sign)

/etc/hosts file ignored

I'm having a strange problem with the hosts file
I've edited my hosts file so I can work with a local machine for testing.
The entry in the hosts file is honoured for about 30 seconds or for as long as I ping it.
As soon as I stop pinging it, it reverts to the DNS entry and ignores etc/hosts
If I then touch hosts, it wil honour the entry again for 30 odd seconds.
Any ideas?

When it reverts to the DNS entry, I'm not 100% sure DirectoryService is making a request out to our DNS servers or if it's cached somewhere, but it's certainly not using what's in hosts.
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dscacheutil -statistics | grep gethostbyname

/etc/hosts file

I was in sudo mode and wiped out my /etc/hosts file. anyone have any idea what i did, or better how to rewrite the proper text there?

edge.it wrote:
I was in sudo mode and wiped out my /etc/hosts file. anyone have any idea what i did, or better how to rewrite the proper text there?
Here's what mine has in it:
# Host Database
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
(Remove the space at the beginning of each line. I had to add those to keep the board software from scrambling the content.)
Here are it's permissions settings:
-rw-r--r-- 1 root wheel 236 Jun 23 2009 /etc/hosts
I wasn't watching you type, so I don't have any idea what you did to delete that. In Terminal the history command will show you a large number of the last commands you typed. Perhaps that will give you a clue.

How to use /etc/hosts file

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thanks to one and all who helped! - I'm now also well-acquainted with dscl, dscacheutil, and other such utilities...
THANKSSSSS!!!!!!!

Strange entry in the /etc/hosts file

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