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No loopback address in /etc/hosts
- Thread starter warmongr
- Start date
I will put my response in context example. In my (work) hosts file, I have entries such as: 127.0.0.1 kona.kontera.com - with my loopback address.
The idea for this is that when there is a link in a web page to kona.kontera.com, which is one of those stinking in text ads, that the URL will resolve to local host and in doing so it will bypass loading the ad.
Another reason why someone would want to put the loopback address in hosts is if you want the system to check it self (i.e. its own servers) for information. For example, if the server is the LAN DNS server, you want it to loop back on itself to access the resolver.
The idea for this is that when there is a link in a web page to kona.kontera.com, which is one of those stinking in text ads, that the URL will resolve to local host and in doing so it will bypass loading the ad.
Another reason why someone would want to put the loopback address in hosts is if you want the system to check it self (i.e. its own servers) for information. For example, if the server is the LAN DNS server, you want it to loop back on itself to access the resolver.
Is this the question? "why would somebody want it so that 127.0.0.1 is *nowhere* in /etc/hosts at all"?
I can't imagine any case where this would be a good idea. Usually localhost is in /etc/hosts mapping to 127.0.0.1, and a lot of applications refer to "localhost" when they want the loopback address. If /etc/hosts doesn't have an entry for localhost, these apps might then need to run a DNS lookup on the localhost hostname, and most likely wouldn't find any result. This would likely cause problems.
Cuvou.com | My personal homepage
I can't imagine any case where this would be a good idea. Usually localhost is in /etc/hosts mapping to 127.0.0.1, and a lot of applications refer to "localhost" when they want the loopback address. If /etc/hosts doesn't have an entry for localhost, these apps might then need to run a DNS lookup on the localhost hostname, and most likely wouldn't find any result. This would likely cause problems.
Code:
127.0.0.1 localhost localhost.localdomainCuvou.com | My personal homepage
Code:
perl -e '$|=$i=1;print" oo\n<|>\n_|_";x:sleep$|;print"\b",$i++%2?"/":"_";goto x;'- Thread starter
- #4
Kirsle,
That is the question and you confirmed what I suspected. One of my developers told me that the site he came from supporting did not have a localhost entry in the /etc/hosts file and I suggested the same possible result you did. I was just looking for a second opinion to back me up. You get the door prize.
Thanks,
W
That is the question and you confirmed what I suspected. One of my developers told me that the site he came from supporting did not have a localhost entry in the /etc/hosts file and I suggested the same possible result you did. I was just looking for a second opinion to back me up. You get the door prize.
Thanks,
W
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