[cs615asa] DNS with aws public IP problem

Zhengkai Wei zwei11 at stevens.edu
Mon Mar 19 17:34:39 EDT 2018


Did you delete the line "domain ec2.internal” ,"search ec2.internal” on you client instance? 
If you using DNS server public IP . One line  enough “name server 51.51.51.51"

> 在 2018年3月19日,下午5:09,Yifang Yuan <yyuan17 at stevens.edu> 写道:
> 
> Hi All:
> Does anyone set client name-server to DNS server’s public IP? My client works with DNS server’s private address, but not public.
> 
> Let me specific:
> 1 My DNS server(AWS) private ip is 172.31.33.1 and public is 51.51.51.51. 
> 2 My DNS client(AWS)’s name-server is set to 172.31.33.1. Client could resolve domain name.
> 3 My DNS client(AWS)’s name-server is set to 51.51.51.51. Client can’t resolve domain name.
> 4 My Macbook’s name-server is set to 51.51.51.51. My laptop could resolve domain name.
> 
> Name-sever is set in /etc/resolv.conf. I use dig to confirm the configuration is loaded.
> Because the dns public ip works on my laptop, I suppose AWS limit the access from inside to themselves public address. Is it true? Thank you.
> 
> Yifang
> 
> 
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