docker how to connect to external DNS
I have docker container (lets say A) running on a host (lets say X). I would like the container to be able to have outbound connectivity to a DNS (ie ELB) that host X already has access to.
ie
container A ---> want to be able to curl an external ELB DNS endpoint...problem is container unable to resolve it!
host X ---> is able to curl the external ELB DNS endpoint already
docker networking containers
asked Nov 22 '18 at 20:27
tooptoop
65
add a comment |
I have docker container (lets say A) running on a host (lets say X). I would like the container to be able to have outbound connectivity to a DNS (ie ELB) that host X already has access to.
ie
container A ---> want to be able to curl an external ELB DNS endpoint...problem is container unable to resolve it!
host X ---> is able to curl the external ELB DNS endpoint already
docker networking containers
asked Nov 22 '18 at 20:27
tooptoop
65
hello? did u try my suggestions?
– clairestreb
Nov 25 '18 at 18:12
this only mentions ip, does it mean all ports on that ip are mapped? what if same port is on the ip and in the docker container?
– toop
Nov 26 '18 at 20:40
I added another reference for you in my answer.
– clairestreb
Nov 28 '18 at 15:37
add a comment |
I have docker container (lets say A) running on a host (lets say X). I would like the container to be able to have outbound connectivity to a DNS (ie ELB) that host X already has access to.
ie
container A ---> want to be able to curl an external ELB DNS endpoint...problem is container unable to resolve it!
host X ---> is able to curl the external ELB DNS endpoint already
docker networking containers
asked Nov 22 '18 at 20:27
tooptoop
65
I have docker container (lets say A) running on a host (lets say X). I would like the container to be able to have outbound connectivity to a DNS (ie ELB) that host X already has access to.
ie
container A ---> want to be able to curl an external ELB DNS endpoint...problem is container unable to resolve it!
host X ---> is able to curl the external ELB DNS endpoint already
docker networking containers
docker networking containers
asked Nov 22 '18 at 20:27
tooptoop
65
asked Nov 22 '18 at 20:27
tooptoop
65
asked Nov 22 '18 at 20:27
tooptoop
65
asked Nov 22 '18 at 20:27
tooptoop
65
asked Nov 22 '18 at 20:27
tooptoop
65
65
hello? did u try my suggestions?
– clairestreb
Nov 25 '18 at 18:12
this only mentions ip, does it mean all ports on that ip are mapped? what if same port is on the ip and in the docker container?
– toop
Nov 26 '18 at 20:40
I added another reference for you in my answer.
– clairestreb
Nov 28 '18 at 15:37
add a comment |
hello? did u try my suggestions?
– clairestreb
Nov 25 '18 at 18:12
this only mentions ip, does it mean all ports on that ip are mapped? what if same port is on the ip and in the docker container?
– toop
Nov 26 '18 at 20:40
I added another reference for you in my answer.
– clairestreb
Nov 28 '18 at 15:37
hello? did u try my suggestions?
– clairestreb
Nov 25 '18 at 18:12
hello? did u try my suggestions?
– clairestreb
Nov 25 '18 at 18:12
this only mentions ip, does it mean all ports on that ip are mapped? what if same port is on the ip and in the docker container?
– toop
Nov 26 '18 at 20:40
this only mentions ip, does it mean all ports on that ip are mapped? what if same port is on the ip and in the docker container?
– toop
Nov 26 '18 at 20:40
I added another reference for you in my answer.
– clairestreb
Nov 28 '18 at 15:37
I added another reference for you in my answer.
– clairestreb
Nov 28 '18 at 15:37
add a comment |
1 Answer
1
active
oldest
votes
Do either of these work for you?
$ docker run --dns 10.0.0.2 busybox nslookup google.com
Or edit your /etc/docker/daemon.json similar to:
{
"dns": ["10.0.0.2", "8.8.8.8"]
}
and restart the docker service
$ sudo systemctl docker restart
For more information, please see Fix Docker's networking DNS config and Container networking.
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Do either of these work for you?
$ docker run --dns 10.0.0.2 busybox nslookup google.com
Or edit your /etc/docker/daemon.json similar to:
{
"dns": ["10.0.0.2", "8.8.8.8"]
}
and restart the docker service
$ sudo systemctl docker restart
For more information, please see Fix Docker's networking DNS config and Container networking.
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
add a comment |
Do either of these work for you?
$ docker run --dns 10.0.0.2 busybox nslookup google.com
Or edit your /etc/docker/daemon.json similar to:
{
"dns": ["10.0.0.2", "8.8.8.8"]
}
and restart the docker service
$ sudo systemctl docker restart
For more information, please see Fix Docker's networking DNS config and Container networking.
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
add a comment |
Do either of these work for you?
$ docker run --dns 10.0.0.2 busybox nslookup google.com
Or edit your /etc/docker/daemon.json similar to:
{
"dns": ["10.0.0.2", "8.8.8.8"]
}
and restart the docker service
$ sudo systemctl docker restart
For more information, please see Fix Docker's networking DNS config and Container networking.
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
Do either of these work for you?
$ docker run --dns 10.0.0.2 busybox nslookup google.com
Or edit your /etc/docker/daemon.json similar to:
{
"dns": ["10.0.0.2", "8.8.8.8"]
}
and restart the docker service
$ sudo systemctl docker restart
For more information, please see Fix Docker's networking DNS config and Container networking.
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
edited Nov 28 '18 at 15:37
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
answered Nov 22 '18 at 22:13
clairestrebclairestreb
780619
780619
add a comment |
add a comment |
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hello? did u try my suggestions?
– clairestreb
Nov 25 '18 at 18:12
this only mentions ip, does it mean all ports on that ip are mapped? what if same port is on the ip and in the docker container?
– toop
Nov 26 '18 at 20:40
I added another reference for you in my answer.
– clairestreb
Nov 28 '18 at 15:37