SSH config for easier access to a remote host via ssh proxy, with meaningful hostnames

ssh-config

# Some ~/.ssh/config things I've been experimenting with.
#
# I need to ssh to a host (bastion) on a public IP address, and then proxy
# through that host to reach another host (inner, private IP 10.0.0.53).
#
# This method allows me to:
#
# 1. Keep my private ssh key local (not stored on bastion)
# 2. Avoid using agent forwarding (for strict control of how my key
#    can be used)
# 3. Give meaningful names (aliases) to the IP addresses I'm connecting to.
# 4. Use other ssh-connecting tools to "directly" connect to inner, eg.
#    scp/sftp.

# This prevents my connections from idling out with some reliability.
Host *
    ServerAliveInterval 15
    ServerAliveCountMax 8
    TCPKeepAlive no

Host project-bastion
    HostKeyAlias project-bastion
    Hostname 93.184.216.34
    User mrb0
    LocalForward 44126 10.0.0.53:22

# Requires tunnel established first via project-bastion
Host project-inner
    HostKeyAlias project-inner
    Hostname 127.0.0.1
    Port 44126
    User mrb0