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Remote & SSH

Remote Transfer Patterns​

# Push to remote
rsync -avz /local/path/ user@host:/remote/path/

# Pull from remote
rsync -avz user@host:/remote/path/ /local/path/

# Specific SSH key
rsync -avz -e "ssh -i ~/.ssh/mykey" src/ user@host:dest/

# Non-standard SSH port
rsync -avz -e "ssh -p 2222" src/ user@host:dest/

# Fast cipher (better speed)
rsync -avz -e "ssh -c aes128-gcm@openssh.com" src/ user@host:dest/

SSH Options​

OptionCommandPurpose
Custom key-e "ssh -i /path/to/key"Use specific SSH key
Custom port-e "ssh -p 2222"Non-standard SSH port
Fast cipher-e "ssh -c aes128-gcm@openssh.com"Faster encryption
Keepalive-e "ssh -o ServerAliveInterval=30"Prevent disconnects
No host check-e "ssh -o StrictHostKeyChecking=no"CI/CD automation
Verbose SSH-e "ssh -v"Debug connection

SSH Config (Reusable)​

~/.ssh/config
Host backup
 HostName 10.0.0.50
 User backupuser
 Port 2222
 IdentityFile ~/.ssh/backup_key
 ControlMaster auto
 ControlPath ~/.ssh/sockets/%r@%h-%p
 ControlPersist 600
# Now use the alias
rsync -avz /src/ backup:/dest/