How many entry can be added in resolv.conf?

[Viney Kumar]

Hi

How many entry can be added in resolv.conf?

Thanks

[VK2COT · Accepted solution]

Hello,

I assume you are asking about how many
nameserver entries can be put into /etc/resolv.conf.

The answer is simple. Current standards
for resolver state that up 3 nameservers
may be listed, one per keyword.

Cheers,

VK2COT

[Pete Randall]

Logic would tell us that, since this file is searched the first time the resolver is invoked for every process, we would like that search to be short. Therefore, the list should be limited to just the required entries.

From the man page:

"In order to reduce situations that may cause connections to unintended destinations, the administrator should carefully select which domains are put in the search list in the resolv.conf file. HP recommends that the possible domains for the search list be limited to those domains administered within your trusted organization."


Pete

[Viney Kumar]

what is the exactly use of this file

[Pete Randall]

It identifies the domain that this server is part of and the nameservers available for DNS resolution.


Pete