Tools Practical By Samson Tanimawo, PhD Published Feb 20, 2026 4 min read

SSH Config Power Tricks

.ssh/config tricks for managing many hosts.

Host aliases

Host prod-1 / Hostname 10.0.1.1 / User admin

ssh prod-1 instead of full hostname.

ProxyJump bastion through bastion.

Cleaner than -J flag.

ControlMaster auto + ControlPath shares connections.

Subsequent ssh to same host is instant.