On the latest Ubuntu it’s no longer possible to change SSH port in /etc/ssh/sshd_config as SSH deamon is now socket based.
To change the port you need to create a file in /etc/systemd/system/ssh.socket.d/ called listen.conf and specify the new port there.
mkdir -p /etc/systemd/system/ssh.socket.dContent of listen.conf:
[Socket]
ListenStream=
ListenStream=2245.. to set the new port to 2245.
sudo systemctl daemon-reload
sudo systemctl restart sshThis error may occur on macbook – just make sure you are actually packing up the application right.
You should be in the application folder and run
~/myapp$ zip ../myapp.zip -r * .[^.]*That solves 99% of issues. Otherwise the zip contains hidden files etc.
To obtain certificate chain from a local file:
openssl x509 -noout -subject -issuer -in domain.com.crtTo obtain certificate chain from a domain:
openssl s_client -connect domain.com:443 -showcertsOn latest Ubuntu I got this error
The following signatures were invalid: EXPKEYSIG 23E7166788B63E1E Yarn Packaging yarn@dan.cxTo fix it, just run following command
sudo apt-key adv --refresh-keys --keyserver keyserver.ubuntu.com
When building the same app again ( e.g. you get a different source code from production, or somewhere outside of the usual GIT ), you need to remove the old one from Docker first. To do so, you first need to list all your dockers
docker ps -ahere you will see container ID of the old docker. Then just remove it.
docker rm {ID}