I have the following in my ~/.ssh/config.
HOST 10.2.192.*
USER foo
PreferredAuthentications publickey
IdentityFile ~/.ssh/foo/id_rsa
The above configuration lets me connect to a machine while typing half as many words.
ssh 10.2.192.x
Before my ssh config, I had to type in all of this:
ssh [email protected] -i ~/.ss/foo/id_rsa
However there is one machine in the 10.2.192.x subnet that I want to connect to with password based authentication instead of keybased authentication.
Because ssh looks at my config file and finds a match for PreferredAuthentications publickey I am unable to login with just my password.
I don't intend to ssh into this special snowflake vm often enough to warrant adding a new rule to my ssh config.
How can I make ssh ignore my config file just this once, and allow me to authenticate with a password?
To make your ssh client ignore your configuration file, use ssh -F /dev/null [email protected]. Because your subnet's IdentityFile is in ~/.ssh/foo rather than ~/.ssh/, you don't need to whip up a whole new file to eschew your extant private key.
From the ssh man page:
-F configfile
Specifies an alternative per-user configuration file. If a
configuration file is given on the command line, the system-wide
configuration file (/etc/ssh/ssh_config) will be ignored. The default
for the per-user configuration file is ~/.ssh/config.
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