Will my running EC2 instance drop its current public IP if I associate an Elastic IP to it?
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I am running an EC2 instance with a public IP. This IP is not elastic, so if I were to restart the instance, I would lose it.
When I created the instance, I did not know about this, so I configured my domain name to point to that IP as if it were set in stone.
Now I realized that I risk that my app be unreachable if the IP changes after a restart.
What would the correct procedure to assign an Elastic IP to this instance without downtime?
amazon-web-services amazon-ec2 elastic-ip
asked Nov 22 at 10:14
Salvatore Iovene
457311
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up vote
0
down vote
favorite
I am running an EC2 instance with a public IP. This IP is not elastic, so if I were to restart the instance, I would lose it.
When I created the instance, I did not know about this, so I configured my domain name to point to that IP as if it were set in stone.
Now I realized that I risk that my app be unreachable if the IP changes after a restart.
What would the correct procedure to assign an Elastic IP to this instance without downtime?
amazon-web-services amazon-ec2 elastic-ip
asked Nov 22 at 10:14
Salvatore Iovene
457311
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am running an EC2 instance with a public IP. This IP is not elastic, so if I were to restart the instance, I would lose it.
When I created the instance, I did not know about this, so I configured my domain name to point to that IP as if it were set in stone.
Now I realized that I risk that my app be unreachable if the IP changes after a restart.
What would the correct procedure to assign an Elastic IP to this instance without downtime?
amazon-web-services amazon-ec2 elastic-ip
asked Nov 22 at 10:14
Salvatore Iovene
457311
I am running an EC2 instance with a public IP. This IP is not elastic, so if I were to restart the instance, I would lose it.
When I created the instance, I did not know about this, so I configured my domain name to point to that IP as if it were set in stone.
Now I realized that I risk that my app be unreachable if the IP changes after a restart.
What would the correct procedure to assign an Elastic IP to this instance without downtime?
amazon-web-services amazon-ec2 elastic-ip
amazon-web-services amazon-ec2 elastic-ip
asked Nov 22 at 10:14
Salvatore Iovene
457311
asked Nov 22 at 10:14
Salvatore Iovene
457311
asked Nov 22 at 10:14
Salvatore Iovene
457311
asked Nov 22 at 10:14
Salvatore Iovene
457311
asked Nov 22 at 10:14
Salvatore Iovene
457311
457311
add a comment |
add a comment |
2 Answers
2
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oldest
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up vote
1
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There will be not that much of downtime. it will be a couple of secs. just get the new ElasticIP and point the DNS to new. Or if you want to do without Downtime, Then plan to add Loadbalancer with your instance and point the domain to Loadbalancer. there will be no downtime
answered Nov 22 at 11:43
AnmolNagpal
1246
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
add a comment |
up vote
0
down vote
The public IP which is auto assigned to your instance will change once you restart/stop n start your instance. Creation and assigning of the Elastic IP wont cause any issue but the domain name configuration will have to be changed. the domain name configuration was done through AWS or any other service providers?
answered Nov 22 at 11:20
kavya sudeep
4
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
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
up vote
1
down vote
accepted
There will be not that much of downtime. it will be a couple of secs. just get the new ElasticIP and point the DNS to new. Or if you want to do without Downtime, Then plan to add Loadbalancer with your instance and point the domain to Loadbalancer. there will be no downtime
answered Nov 22 at 11:43
AnmolNagpal
1246
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
add a comment |
up vote
1
down vote
accepted
There will be not that much of downtime. it will be a couple of secs. just get the new ElasticIP and point the DNS to new. Or if you want to do without Downtime, Then plan to add Loadbalancer with your instance and point the domain to Loadbalancer. there will be no downtime
answered Nov 22 at 11:43
AnmolNagpal
1246
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
There will be not that much of downtime. it will be a couple of secs. just get the new ElasticIP and point the DNS to new. Or if you want to do without Downtime, Then plan to add Loadbalancer with your instance and point the domain to Loadbalancer. there will be no downtime
answered Nov 22 at 11:43
AnmolNagpal
1246
There will be not that much of downtime. it will be a couple of secs. just get the new ElasticIP and point the DNS to new. Or if you want to do without Downtime, Then plan to add Loadbalancer with your instance and point the domain to Loadbalancer. there will be no downtime
answered Nov 22 at 11:43
AnmolNagpal
1246
answered Nov 22 at 11:43
AnmolNagpal
1246
answered Nov 22 at 11:43
AnmolNagpal
1246
answered Nov 22 at 11:43
AnmolNagpal
1246
1246
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
add a comment |
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
Won't there be downtime while the DNS change propagates?
– Salvatore Iovene
Nov 23 at 12:12
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
No, Becuase your old DNS and NEW DNS are pointing to the same server. Only Diff will be earlier it was on EC2 now it will be LB. Rest will be the same.
– AnmolNagpal
Nov 23 at 13:58
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
Thanks, my question was related to just changing the DNS without a LB. But I understand now how I could do it with no downtime using a LB. Thanks!
– Salvatore Iovene
Nov 23 at 20:57
add a comment |
up vote
0
down vote
The public IP which is auto assigned to your instance will change once you restart/stop n start your instance. Creation and assigning of the Elastic IP wont cause any issue but the domain name configuration will have to be changed. the domain name configuration was done through AWS or any other service providers?
answered Nov 22 at 11:20
kavya sudeep
4
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
add a comment |
up vote
0
down vote
The public IP which is auto assigned to your instance will change once you restart/stop n start your instance. Creation and assigning of the Elastic IP wont cause any issue but the domain name configuration will have to be changed. the domain name configuration was done through AWS or any other service providers?
answered Nov 22 at 11:20
kavya sudeep
4
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
add a comment |
up vote
0
down vote
up vote
0
down vote
The public IP which is auto assigned to your instance will change once you restart/stop n start your instance. Creation and assigning of the Elastic IP wont cause any issue but the domain name configuration will have to be changed. the domain name configuration was done through AWS or any other service providers?
answered Nov 22 at 11:20
kavya sudeep
4
The public IP which is auto assigned to your instance will change once you restart/stop n start your instance. Creation and assigning of the Elastic IP wont cause any issue but the domain name configuration will have to be changed. the domain name configuration was done through AWS or any other service providers?
answered Nov 22 at 11:20
kavya sudeep
4
answered Nov 22 at 11:20
kavya sudeep
4
answered Nov 22 at 11:20
kavya sudeep
4
answered Nov 22 at 11:20
kavya sudeep
4
4
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
add a comment |
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
It's done via Cloudflare. I can set a very short TTL (I think the shortest is 1 or 2 minutes) and that should limit the downtime to 2 minutes, I think.
– Salvatore Iovene
Nov 23 at 12:13
add a comment |
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