SSH config wildcard on expanded Hostname

Simply use:

Host *.mydomain.com host1
User myusername

Host host1
Hostname host1.mydomain.com

• Alternative patterns are supplied by a delimiting blank in a Host line.
• All matching Host Patterns are applied.
• If an option occurs multiple times, only the 1st occurance is used

You can simply set CanonicalizeHostname to yes to reparse ssh_config with the canonical hostname of your alias. For example:

CanonicalizeHostname yes
Host *.mydomain.com
    User myusername

Host host1
    HostName host1.mydomain.com

Alternatively, if you want to also remap hostnames, you can use Match instead of Host to match only the canonical hostnames. For example, in:

Match canonical host="*.mydomain.com"
    User myusername

Host host2.mydomain.com
    HostName host2.otherdomain.com

The user directive will not be set when you connect to host2.mydomain.com.

You can use %h.mydomain.com in your .ssh/config.

 Host host?
 User myusername
 Hostname %h.mydomain.com

Host host??
 User myusername
 Hostname %h.mydomain.com

Host host???
 User myusername
 Hostname %h.mydomain.com

Now you can do:

ssh host1

ssh host1.mydomain.com

ssh host10

ssh host10.mydomain.com

Regards, Bert