configuração do SSH: Usar tunel SSH sempre que conectar nos hosts do domínio especifico. Always when connecting to hosts in this domain, SSH will use the Tunel

ssh_config

#

Host *
#   ForwardAgent no
#   ForwardX11 no
#   ForwardX11Trusted yes
#   PasswordAuthentication yes
#   HostbasedAuthentication no
#   GSSAPIAuthentication no
#   GSSAPIDelegateCredentials no
#   GSSAPIKeyExchange no
#   GSSAPITrustDNS no
#   BatchMode no
#   CheckHostIP yes
#   AddressFamily any
#   ConnectTimeout 0
#   StrictHostKeyChecking ask
#   IdentityFile ~/.ssh/id_rsa
#   IdentityFile ~/.ssh/id_dsa
#   IdentityFile ~/.ssh/id_ecdsa
#   IdentityFile ~/.ssh/id_ed25519
#   Port 22
#   Protocol 2
#   Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc
#   MACs hmac-md5,hmac-sha1,umac-64@openssh.com
#   EscapeChar ~
#   Tunnel no
#   TunnelDevice any:any
#   PermitLocalCommand no
#   VisualHostKey no
#   ProxyCommand ssh -q -W %h:%p gateway.example.com
#   RekeyLimit 1G 1h
    ServerAliveInterval 60
    ServerAliveCountMax 10
    SendEnv LANG LC_*
    HashKnownHosts yes
    GSSAPIAuthentication yes
    ControlMaster auto
    ControlPath ~/.ssh/ALL-%r@%h:%p
    ControlPersist 8h


# Fortress/Bastion/Jumpbox host -  Development Enviromnent
Host 172.22.1.100
    IdentityFile /path/to/my/secret.pem
    ControlMaster auto
    ControlPath ~/.ssh/-%r@%h:%p
    ControlPersist 8h

# SSH configuration: always when connecting to hosts in this domain, SSH will use the Tunel
Host *.dev.intranet
    ProxyCommand ssh -W %h:%p user@172.22.1.100 -i /path/to/my/secret.pem  -o StrictHostKeyChecking=no 
    IdentityFile /path/to/my/secret.pem

#=====================================

# Fortress/Bastion/Jumpbox host -  Production Enviromnent 
Host 10.0.1.100
    IdentityFile /path/to/my/secret.pem
    ControlMaster auto
    ControlPath ~/.ssh/FortressPROD-%r@%h:%p
    ControlPersist 8h

# configuração do SSH: sempre ao conectar nos hosts deste dominio, o SSH irá usar o Tunel
Host *.prod.intranet
    ProxyCommand ssh -W %h:%p user@10.0.1.100 -i /path/to/my/secret.pem  -o StrictHostKeyChecking=no 
    IdentityFile /path/to/my/secret.pem