openssl genrsa -out ca-key.pem 2048 openssl req -x509 -sha256 -new -nodes -key ca-key.pem -days 3650 -out ca.pem

openssl genrsa -out client-key.pem 2048 openssl req -subj '/CN=client' -new -key client-key.pem -out client.csr echo subjectAltName = DNS:j2.master,IP:172.16.10.100 > extfile.cnf echo extendedKeyUsage = serverAuth >> extfile.cnf openssl x509 -req -days 3650 -sha256 -in client.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out client-cert.pem -extfile extfile.cnf

docker swarm init --advertise-addr eth1 docker swarm ca --ca-cert /keys/ca.pem --ca-key /keys/ca-key.pem --rotate docker swarm join --token SWMTKN-1-0vf8dgmp7iwwit57sk8pclhv7xlc15gf4f4edhoh26lyh98egb-0a7274fenyvv4d11xwieapefa 172.16.10.100:2377

Title Title Title

nano /usr/lib/systemd/system/docker.service -H tcp://0.0.0.0:2376 -H unix:///var/run/docker.sock systemctl daemon-reload systemctl restart docker

/usr/lib/systemd/system/

https://www.thegeekdiary.com/how-to-remove-virbr0-and-lxcbr0-interfaces-on-centos-rhel-5-and-rhel-7/ sudo ip link set virbr1 down sudo brctl delbr virbr1 sudo ip link set virbr2 down sudo brctl delbr virbr2

sudo service libvirtd stop sudo service libvirtd start

ssh root@172.16.10.100 ssh root@172.16.10.101 ssh root@172.16.10.102

docker rm -f $(docker ps -aq) docker rmi $(docker images -aq)

docker exec 2b bash -c "kill -15 $(ps | grep 'java -jar' | awk '{print $1}')" find /root/.microemulator/ -mindepth 1 ! -name 'config2.xml' -exec rm -rf {} +

https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys-on-ubuntu-20-04 cat ~/.ssh/id_rsa_gitpod.pub | ssh root@14.225.255.89 "mkdir -p ~/.ssh && touch ~/.ssh/authorized_keys && chmod -R go= ~/.ssh && cat >> ~/.ssh/authorized_keys" sudo nano /etc/ssh/sshd_config PasswordAuthentication no sudo systemctl restart ssh

sudo ufw default deny incoming sudo ufw default allow outgoing sudo ufw allow 22 sudo ufw enable

// my ip 118.68.84.249 sudo ufw allow from 118.68.84.249 to any port 2376 sudo ufw delete from 118.68.84.249 to any port 2376

// srv1 ssh root@14.225.255.89

docker image prune -f

echo "nameserver 8.8.8.8" >> /etc/resolv.conf

e2JJ#NybyEk@P^K!

e2JJ#NybyEk@P^K!121

virsh /etc/libvirt/qemu/networks virsh net-start wlxd03745825bc0

virsh net-edit default

sudo ip route add default via 192.168.150.10 dev eth1 metric 1

sudo ip route add default via 192.168.150.10 dev virbr1 metric 1 sudo ip route delete default via 192.168.150.10 dev virbr1 metric 1

sudo ip route add default via 192.168.1.1 dev wlxd03745d1164c proto dhcp metric 618 sudo ip route add default via 192.168.1.1 dev wlxd03745825bc0 proto dhcp metric 620

sudo ip route delete default via 192.168.1.1 dev wlxd03745d1164c proto dhcp metric 618 sudo ip route delete default via 192.168.1.1 dev wlxd03745825bc0 proto dhcp metric 620

apk add openrc

ssh-keygen -t ed25519

keep