MbuguaCaleb

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MbuguaCaleb

# Viewing your Posgtres Clusters

sudo pg_lsclusters 

# create a second postgres cluster 
sudo pg_createcluster 10 replica1 

#checking the status of the cluster
sudo pg_ctlcluster 10 replica1 status 
sudo systemctl status postgresql@10-main 

MbuguaCaleb

SSH(Entails to when a client is communicating to a server)

SECURE SHELL

PROROCOL TO COMMUNINCATE WITH OTHER COMPUTERS AND SIMILAR TO (https,http,ftp)
Used to do just about anything in a remote computer and mostly used via the terminal/commandLine
Traffic is Enccrypted

Can also be used via GUI eg in WINSCP
Can also be used in ftp..file zilla