How to ping Docker container from another container by name?
The feather of accessing or pinging containers from other containers using their name rather than their IP address comes out of the box with docker networks.
For this, you will need two (or more) containers. It is very important to
explicitly specify their name using the --name flag. For example:
docker run -d --name container1 -p 8001:80 eboraas/apache-php
docker run -d --name container2 -p 8001:80 eboraas/apache-php
Then, you need to create a network:
docker network create mynetwork
Lastly, connect the containers to the newly created network:
docker network connect mynetwork container1
docker network connect mynetwork container2
Now the setup is complete, you can ping from one container in the network to another:
docker exec -ti container1 ping container2
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
-
How do I disable ipv6 on Ubuntu 20.04
To disable IPv6 on your Ubuntu 20.04 system, open the /etc/sysctl.conf file in your favorite text editor and put the following lines at the end of the file: net.ipv6.conf.all.disableipv6 = 1 net.ip...
Questions -
Nginx on Ubuntu
Here is how to install Nginx on Ubuntu 20.04 in under two minutes: Step 1 - Update the package list on your system The first step is to update the package list on your system before proceeding to a...
Guides -
Error Permission denied (publickey) when I try to ssh
This error appears when trying to SSH into a server. The publickey in the brackets after the error message is misleading. One reason might be wrong configuration in sshd_config file and the second ...
Questions