Mixing
AWC: 2 hostnames on EC2 instance from custom AMI
I am pre-baking an AMI from which to launch some instances;
The only networking configuration I make, is to add a custom dns as follows:
prepend domain-name-servers 10.3.4.1;
in the ami's /etc/dhcp/dhclient.conf;
Then, in an instance I launch from this ami:
root@ip-10-17-0-114:~# cat /etc/hostname
ip-10-17-0-15
root@ip-10-17-0-114:~# hostname
ip-10-17-0-114
Is this behavior normal?
amazon-web-services amazon-ec2 dns ami
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
add a comment |
I am pre-baking an AMI from which to launch some instances;
The only networking configuration I make, is to add a custom dns as follows:
prepend domain-name-servers 10.3.4.1;
in the ami's /etc/dhcp/dhclient.conf;
Then, in an instance I launch from this ami:
root@ip-10-17-0-114:~# cat /etc/hostname
ip-10-17-0-15
root@ip-10-17-0-114:~# hostname
ip-10-17-0-114
Is this behavior normal?
amazon-web-services amazon-ec2 dns ami
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
add a comment |
I am pre-baking an AMI from which to launch some instances;
The only networking configuration I make, is to add a custom dns as follows:
prepend domain-name-servers 10.3.4.1;
in the ami's /etc/dhcp/dhclient.conf;
Then, in an instance I launch from this ami:
root@ip-10-17-0-114:~# cat /etc/hostname
ip-10-17-0-15
root@ip-10-17-0-114:~# hostname
ip-10-17-0-114
Is this behavior normal?
amazon-web-services amazon-ec2 dns ami
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
I am pre-baking an AMI from which to launch some instances;
The only networking configuration I make, is to add a custom dns as follows:
prepend domain-name-servers 10.3.4.1;
in the ami's /etc/dhcp/dhclient.conf;
Then, in an instance I launch from this ami:
root@ip-10-17-0-114:~# cat /etc/hostname
ip-10-17-0-15
root@ip-10-17-0-114:~# hostname
ip-10-17-0-114
Is this behavior normal?
amazon-web-services amazon-ec2 dns ami
amazon-web-services amazon-ec2 dns ami
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
asked Nov 20 '18 at 7:24
pkaramolpkaramol
2,00511442
2,00511442
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
In your AMI, file /etc/sysconfig/network ensure hostname is set to the below:
HOSTNAME=localhost.localdomain and NETWORKING=yes
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
this file does not exist at least ondebian jessie
– pkaramol
Nov 21 '18 at 11:11
add a comment |
domain-name-server 10.3.4.1 is not the same as hostname. Would need some more info to actually help. If you area trying to point your EC2 instances DNS server setting to that IP address, you could do that in the DHCP options within a VPC.
what are you trying to achieve here?
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
In your AMI, file /etc/sysconfig/network ensure hostname is set to the below:
HOSTNAME=localhost.localdomain and NETWORKING=yes
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
this file does not exist at least ondebian jessie
– pkaramol
Nov 21 '18 at 11:11
add a comment |
In your AMI, file /etc/sysconfig/network ensure hostname is set to the below:
HOSTNAME=localhost.localdomain and NETWORKING=yes
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
this file does not exist at least ondebian jessie
– pkaramol
Nov 21 '18 at 11:11
add a comment |
In your AMI, file /etc/sysconfig/network ensure hostname is set to the below:
HOSTNAME=localhost.localdomain and NETWORKING=yes
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
In your AMI, file /etc/sysconfig/network ensure hostname is set to the below:
HOSTNAME=localhost.localdomain and NETWORKING=yes
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
edited Nov 20 '18 at 10:07
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
answered Nov 20 '18 at 9:51
ben5556ben5556
1,8772310
1,8772310
this file does not exist at least ondebian jessie
– pkaramol
Nov 21 '18 at 11:11
add a comment |
this file does not exist at least ondebian jessie
– pkaramol
Nov 21 '18 at 11:11
this file does not exist at least on
debian jessie– pkaramol
Nov 21 '18 at 11:11
this file does not exist at least on
debian jessie– pkaramol
Nov 21 '18 at 11:11
add a comment |
domain-name-server 10.3.4.1 is not the same as hostname. Would need some more info to actually help. If you area trying to point your EC2 instances DNS server setting to that IP address, you could do that in the DHCP options within a VPC.
what are you trying to achieve here?
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
add a comment |
domain-name-server 10.3.4.1 is not the same as hostname. Would need some more info to actually help. If you area trying to point your EC2 instances DNS server setting to that IP address, you could do that in the DHCP options within a VPC.
what are you trying to achieve here?
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
add a comment |
domain-name-server 10.3.4.1 is not the same as hostname. Would need some more info to actually help. If you area trying to point your EC2 instances DNS server setting to that IP address, you could do that in the DHCP options within a VPC.
what are you trying to achieve here?
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
domain-name-server 10.3.4.1 is not the same as hostname. Would need some more info to actually help. If you area trying to point your EC2 instances DNS server setting to that IP address, you could do that in the DHCP options within a VPC.
what are you trying to achieve here?
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
answered Nov 20 '18 at 23:29
Michael QualeMichael Quale
105
105
add a comment |
add a comment |
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